Merge pull request #19 from htamas1210/Engine/movebuffer

Engine/movebuffer
Import time module and add sleep in data upload
2025-11-19 20:14:45 +01:00 · 2025-11-19 17:34:44 +01:00 · 2025-11-19 17:10:03 +01:00 · 2025-11-19 16:13:34 +01:00 · 2025-11-19 16:09:31 +01:00 · 2025-11-19 16:00:09 +01:00
35 changed files with 6723 additions and 25 deletions
--- a/.github/workflows/dispatcher.yml
+++ b/.github/workflows/dispatcher.yml
@@ -16,6 +16,9 @@ jobs:
      server: ${{ steps.check.outputs.server }}
      ui: ${{ steps.check.outputs.ui }}
    steps:
+      - name: checkout repository 
+        uses: actions/checkout@v4
+
      - name: Determine which tests to run
        id: check
        run: |
--- a/.github/workflows/engine_test.yml
+++ b/.github/workflows/engine_test.yml
@@ -9,8 +9,6 @@ jobs:
    runs-on: self-hosted

    steps:
-      - uses: actions/checkout@v4
-
      - name: Run Engine tests
        run: |
          bash .github/workflows/test.sh engine/
--- a/.github/workflows/server_test.yml
+++ b/.github/workflows/server_test.yml
@@ -9,8 +9,6 @@ jobs:
    runs-on: self-hosted

    steps:
-      - uses: actions/checkout@v4
-
      - name: Run Server tests
        run: |
          bash .github/workflows/test.sh server/
--- a/.github/workflows/test.sh
+++ b/.github/workflows/test.sh
@@ -38,3 +38,5 @@ cat "$LOG_FILE" >> "$FINAL_LOG"
 # --- SUMMARY ---
 echo ">>> Test output extracted to $PROJECT_PATH/$LOG_FILE"
 echo ">>> Appended to $FINAL_LOG"
+
+cat $(git rev-parse --show-toplevel)/test_data.log
--- a/.github/workflows/ui_test.yml
+++ b/.github/workflows/ui_test.yml
@@ -9,8 +9,6 @@ jobs:
    runs-on: self-hosted

    steps:
-      - uses: actions/checkout@v4
-
      - name: Run UI tests
        run: |
          bash .github/workflows/test.sh ui/
--- a/.github/workflows/upload_data.yml
+++ b/.github/workflows/upload_data.yml
@@ -20,33 +20,78 @@ jobs:
          echo "$GOOGLE_SERVICE_ACCOUNT_JSON" > service_account.json
          
          python <<'PYCODE'
-          import gspread, json, time, subprocess
+          import gspread, json, subprocess, time

-          # credentials
          creds = json.load(open("service_account.json"))
          gc = gspread.service_account_from_dict(creds)
          sh = gc.open_by_key("${{ secrets.SPREADSHEET_ID }}")
          v = subprocess.run(['git','rev-parse','--show-toplevel'], capture_output=True).stdout.decode().strip()
          print(f"{v}/test_data.log")

+
+          def writeRowsToSpreadsheet(data_list, worksheet):
+              existing_rows = len(worksheet.get_all_values())
+              start_row = existing_rows + 3
+              rows_to_append = [row.split() for row in data_list]
+              print("rows to append")
+              print(f"{rows_to_append}")
+
+              for i, row in enumerate(rows_to_append):
+                  worksheet.insert_row(row, start_row + i)
+                  time.sleep(1)
+
+
          with open(f"{v}/test_data.log", "r") as f:
              lines = [line.strip() for line in f if line.strip()]

+          isMaster = False
          project = lines[0].lower()
-          worksheet = sh.worksheet(project)
+          if project == "master":
+              isMaster = True
+          
+          engine_data = []
+          server_data = []
+          ui_data = []
+          master_data = []

-          # project name
-          data = lines[1:]
+          for entry in lines:
+              if not isMaster and entry == "engine":
+                  project = "engine"
+              elif not isMaster and entry == "server":
+                  project = "server"
+              elif not isMaster and entry == "ui":
+                  project = "ui"

-          #blank rows
-          existing_rows = len(worksheet.get_all_values())
-          start_row = existing_rows + 3
+              if project == "engine" and entry != "engine":
+                  engine_data.append(entry)
+              elif project == "server" and entry != "server":
+                  server_data.append(entry)
+              elif project == "ui" and entry != "ui":
+                  ui_data.append(entry)
+              elif project == "master" and entry != "master":
+                  master_data.append(entry)

-          # Split data into columns (by spaces)
-          rows_to_append = [row.split() for row in data]
+          print("PRINTING FILTERED DATA\n\n")
+          print(f"engine\n{engine_data}")
+          print(f"server\n{server_data}")
+          print(f"ui\n{ui_data}")
+          print(f"master\n{master_data}")
+          print("\n\n\n")

-          for i, row in enumerate(rows_to_append):
-              worksheet.insert_row(row, start_row + i)
+          if isMaster and len(master_data) != 0:
+              print("uploading to master tab")
+              worksheet = sh.worksheet("master")
+              writeRowsToSpreadsheet(master_data, worksheet)
+              exit(0)
+
+          if len(engine_data) != 0:
+              print("uploading to engine tab")
+              writeRowsToSpreadsheet(engine_data, sh.worksheet("engine"))
+          if len(server_data) != 0:
+              print("uploading to server tab")
+              writeRowsToSpreadsheet(server_data, sh.worksheet("server"))
+          if len(ui_data) != 0:
+              print("uploading to ui tab")
+              writeRowsToSpreadsheet(ui_data, sh.worksheet("ui"))

-          print(f"Uploaded {len(rows_to_append)} rows to '{project}' tab.")
          PYCODE
--- a/Docs/Knightly
+++ b/Docs/Knightly
--- a/Docs/Knightly
+++ b/Docs/Knightly
@@ -0,0 +1,287 @@
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+        </mxCell>
+        <mxCell id="4rzJeeoM2DMZDjvMm2AJ-40" value="a jatekos lep a egy babual. Ekkor ellenorizzuk hogy szabad e volt ezt a léppést megtennie" style="whiteSpace=wrap;html=1;rounded=0;" parent="1" vertex="1">
+          <mxGeometry x="390" y="1370" width="140" height="90" as="geometry" />
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+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-1" value="ha szabad volt elküldjük a lépést a szervernek" style="whiteSpace=wrap;html=1;rounded=0;" vertex="1" parent="1">
+          <mxGeometry x="400" y="1490" width="120" height="60" as="geometry" />
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+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-4" value="felbontás megváltoztatása" style="whiteSpace=wrap;html=1;rounded=0;" vertex="1" parent="1">
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+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-7" value="teljes képernyő" style="whiteSpace=wrap;html=1;rounded=0;" vertex="1" parent="1">
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+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-9" value="ai api kulcs megadása" style="whiteSpace=wrap;html=1;rounded=0;" vertex="1" parent="1">
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+        </mxCell>
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+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-11" value="&lt;div&gt;ellenfél ui frissítése&lt;/div&gt;" style="whiteSpace=wrap;html=1;rounded=0;" vertex="1" parent="1">
+          <mxGeometry x="400" y="1580" width="120" height="60" as="geometry" />
+        </mxCell>
+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-13" value="&lt;div&gt;{&lt;/div&gt;&lt;div&gt;from:str,&lt;/div&gt;&lt;div&gt;to: str&lt;/div&gt;&lt;div&gt;}&lt;/div&gt;" style="rhombus;whiteSpace=wrap;html=1;rounded=0;" vertex="1" parent="1">
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+        </mxCell>
+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-15" value="Ip cím megjelenítése a könnyebb csatlakozás érdekében" style="ellipse;whiteSpace=wrap;html=1;rounded=0;" vertex="1" parent="1">
+          <mxGeometry x="20" y="490" width="120" height="150" as="geometry" />
+        </mxCell>
+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-18" value="a ui végig megy az adatokon, amit visszakapott a szervertől a kör elején" style="ellipse;whiteSpace=wrap;html=1;rounded=0;" vertex="1" parent="1">
+          <mxGeometry x="590" y="1290" width="170" height="110" as="geometry" />
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+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-20" value="ellenőrizzük, hogy nyert-e a játékos vagy döntetlen lett-e" style="whiteSpace=wrap;html=1;rounded=0;" vertex="1" parent="1">
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+        </mxCell>
+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-24" value="kör átadása az ellenfélnek" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
+          <mxGeometry x="400" y="1790" width="120" height="60" as="geometry" />
+        </mxCell>
+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-30" value="" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;" edge="1" parent="1" source="iJwoCWMJ6fIoSaqHo3aH-28" target="iJwoCWMJ6fIoSaqHo3aH-29">
+          <mxGeometry relative="1" as="geometry" />
+        </mxCell>
+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-28" value="játék befejezése, nyertes megjelnítése,&amp;nbsp;" style="rounded=0;whiteSpace=wrap;html=1;" vertex="1" parent="1">
+          <mxGeometry x="580" y="1860" width="120" height="60" as="geometry" />
+        </mxCell>
+        <mxCell id="iJwoCWMJ6fIoSaqHo3aH-29" value="a játékosokat vissza küldjük a menübe, a szerver oldalon töröljük a meccset a listából, és töröljük&amp;nbsp; a játékosokat a meccs közben lévő listából" style="whiteSpace=wrap;html=1;rounded=0;" vertex="1" parent="1">
+          <mxGeometry x="560" y="1940" width="160" height="120" as="geometry" />
+        </mxCell>
+      </root>
+    </mxGraphModel>
+  </diagram>
+</mxfile>
--- a/Docs/kovspec.md
+++ b/Docs/kovspec.md
@@ -22,6 +22,68 @@ A vágyálom rendszer alapját egy központi szerver képezné, amely kezeli a f
 A platform célja a megbízható és folyamatos működés, akár nagyobb terhelés mellett is. A rendszer fejlesztése során kiemelt szempont lenne a biztonság (adatvédelem, csalás elleni védelem), a stabil hálózati kommunikáció, valamint a bővíthetőség – például ranglisták, versenyek vagy mobilalkalmazás későbbi integrálásának lehetősége.

 Összességében a vágyálom rendszer egy minden szempontból teljes értékű, közösségorientált sakkalkalmazás lenne, amely a mostani, helyi hálózaton működő változatból fejlődne tovább egy interneten keresztül bárhonnan elérhető platformmá.
+
+## 3. Igényelt funkciók
+
+### Alapok
+- Két játékos közti sakkjátszma lebonyolítása.
+- Teljes szabályrendszer megvalósítása (érvényes lépések, sakk/sakkmatt/patt felismerése).
+- Új játék indítása.
+- Játékosok nevének megadása a játszma elején.
+- Felhasználóbarát grafikus felület (UI) – látható tábla, figurák, órák, státuszjelzések.
+- Játékoslépések vizuális kiemelése (pl. kijelölt mező, lehetséges lépések megjelenítése).
+- A játék állapotának kijelzése (folyamatban, sakk, matt, döntetlen).
+  
+### LAN és hálózati funkciók
+- „Szerver indítása” funkció – a játékos hostként indíthat egy helyi szervert.
+- „Csatlakozás” funkció – másik játékos IP-cím alapján tud csatlakozni.
+- Helyi hálózaton keresztüli valós idejű kommunikáció.
+- LAN játék automatikus felfedezése (broadcast keresés).
+- Játék mentése és visszatöltése hálózati módban.
+
+### Online vágyálom funkciók
+- Felhasználói regisztráció és bejelentkezés.
+- Jelszóval védett fiókok, email- vagy OAuth-alapú hitelesítés (Google, GitHub stb.).
+- Profiloldal megtekintése (név, avatar, statisztikák, értékszám).
+- Automatikus matchmaking rendszer.
+- Kézi játékindítás – meghívó küldése barátnak.
+- Játszmák mentése és visszajátszása.
+- Játszmaelemzés – lépések listázása, hibák kiemelése.
+- Webes felület vagy mobilalkalmazás támogatása.
+- Játék előzményeinek és statisztikáinak megtekintése (győzelmek, vereségek, döntetlenek).
+- Automatikus szervermentés és adatbázis szinkronizáció.
+
+### Felhasználói felület
+- Letisztult, reszponzív, platformfüggetlen felület (asztali és webes verzió).
+- Sötét/világos téma lehetősége.
+- Egyéni figurakészlet vagy tábla kinézet választása.
+- Animált figuramozgások.
+- Egérrel és billentyűzettel is vezérelhető játék.
+- Hangjelzések a lépésekhez és az idő lejártához.
+- Lépéselőzmények (move list) megjelenítése oldalt.
+- Tábla forgatásának lehetősége (pl. a fehér vagy fekete nézőpontból).
+- Állapotjelzők (sakk, matt, döntetlen, várakozás az ellenfélre).
+- Teljes képernyős mód.
+
+### Technikai / fejlesztői funkciók
+- Kliens–szerver architektúra.
+- REST API vagy WebSocket alapú kommunikáció.
+- Adatbázis a felhasználói adatok és meccsek tárolására (pl. SQLite, PostgreSQL, MongoDB).
+- Logolási és hibakezelési rendszer.
+- Automatikus mentés és adatvisszaállítás.
+- Verziókezelés (Git).
+- Tesztelhető, moduláris kódszerkezet (külön modulok: logika, UI, hálózat, adat).
+- Cross-platform működés (Windows, Linux, esetleg web).
+
+### További funkciók
+- Egyszemélyes mód (ember vs. gép, AI-bot).
+- Több nehézségi szintű AI.
+- Oktató mód (javasolt lépések, hibák magyarázata).
+- Hivatalos FEN/PGN formátum export/import.
+- Beépített sakkfeladványok, kihívások.
+- Érintéses vezérlés mobilon.
+- Többnyelvű felület (pl. magyar, angol).
+
 ## 4. Rendszer követelmények

 A rendszer célja egy kétjátékos sakkalkalmazás megvalósítása, amely alapvetően hálózati kapcsolat (LAN vagy internet) segítségével biztosítja a valós idejű játékot. A rendszer kliens–szerver architektúrán alapul, ahol az egyes komponensek jól elkülönülten, meghatározott feladatokat látnak el.
--- a/prezentáció.pptx
+++ b/prezentáció.pptx
--- a/engine/Cargo.toml
+++ b/engine/Cargo.toml
@@ -4,4 +4,6 @@ version = "0.1.0"
 edition = "2024"

 [dependencies]
-once_cell = "1.19"
+once_cell = "1.19"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
--- a/engine/src/bitboard.rs
+++ b/engine/src/bitboard.rs
@@ -1,2 +1,9 @@
 mod attackmaps;
-mod utils;
+mod utils;
+mod legality;
+mod checkinfo;
+mod attacks;
+mod bitmove;
+mod movebuffer;
+
+pub mod board;
--- a/engine/src/bitboard/attacks.rs
+++ b/engine/src/bitboard/attacks.rs
@@ -0,0 +1,89 @@
+use super::board::Board;
+use super::attackmaps::*;
+
+impl Board {
+
+  const RANK_2: u64 = 0x0000_0000_0000_FF00;
+  const RANK_7: u64 = 0x00FF_0000_0000_0000;
+
+  pub fn get_pseudo_pawn_moves(&self, sq: u32) -> u64 {
+    let pawn: u64 = 1 << sq;
+    let mut move_mask: u64 = 0u64;
+    let move_offset: i8 = 8 - 16 * self.side_to_move as i8;
+
+    let next_sq: u64 = if move_offset > 0 {pawn << move_offset} else {pawn >> -move_offset};
+    if (self.occupancy[2] & next_sq) == 0 {
+      move_mask |= next_sq;
+
+      if (self.side_to_move == 0 && pawn & Self::RANK_2 != 0)
+        || (self.side_to_move == 1 && pawn & Self::RANK_7 != 0) {
+
+        let next_sq: u64 = if move_offset > 0 {next_sq << move_offset} else {next_sq >> -move_offset};
+        if (self.occupancy[2] & next_sq) == 0 {
+          move_mask |= next_sq;
+        }
+      }
+    }
+
+    return move_mask;
+  }
+  #[inline]
+  pub fn get_pseudo_knight_moves(&self, sq: u32) -> u64 {
+    return KNIGHT_ATTACK_MAP[sq as usize];
+  }
+  #[inline]
+  pub fn get_pseudo_king_moves(&self, sq: u32) -> u64 {
+    return KING_ATTACK_MAP[sq as usize];
+  }
+  #[inline]
+  pub fn get_pseudo_pawn_captures(&self, sq: u32) -> u64 {
+    return PAWN_ATTACK_MAP[sq as usize][self.side_to_move as usize];
+  }
+  #[inline]
+  pub fn get_pseudo_opponent_pawn_captures(&self, sq: u32) -> u64 {
+    return PAWN_ATTACK_MAP[sq as usize][1 - self.side_to_move as usize];
+  }
+  #[inline]
+  pub fn get_pseudo_bishop_moves(&self, sq: u32) -> u64 {
+    let mut  moves = 0u64;
+    let sq  = sq as usize;
+    let occupancy = self.occupancy[2];
+    moves |= get_raycast_from_square_in_direction(occupancy, sq, 1);
+    moves |= get_raycast_from_square_in_direction(occupancy, sq, 3);
+    moves |= get_raycast_from_square_in_direction(occupancy, sq, 5);
+    moves |= get_raycast_from_square_in_direction(occupancy, sq, 7);
+
+    return moves;
+  }
+  #[inline]
+  pub fn get_pseudo_rook_moves(&self, sq: u32) -> u64 {
+    let mut moves: u64 = 0u64;
+    let occupancy = self.occupancy[2];
+    let sq = sq as usize;
+    moves |= get_raycast_from_square_in_direction(occupancy, sq, 0);
+    moves |= get_raycast_from_square_in_direction(occupancy, sq, 2);
+    moves |= get_raycast_from_square_in_direction(occupancy, sq, 4);
+    moves |= get_raycast_from_square_in_direction(occupancy, sq, 6);
+
+    return moves;
+  }
+  #[inline(always)]
+  pub fn get_pseudo_queen_moves(&self, sq: u32) -> u64 {
+    return self.get_pseudo_bishop_moves(sq) | self.get_pseudo_rook_moves(sq);
+  }
+}
+
+#[inline(always)]
+pub fn get_raycast_from_square_in_direction(occupancy: u64, sq: usize, dir: usize) -> u64 {
+  let is_up: bool = dir / 4 == 0;
+  let mut ray: u64 = RAY_TABLE[sq][dir];
+  let blockers: u64 = occupancy & ray;
+
+  if blockers != 0 {
+    let first_blocker: u32 = if is_up { blockers.trailing_zeros() } else { 63 - blockers.leading_zeros() };
+
+    ray &= !RAY_TABLE[first_blocker as usize][dir];
+  }
+
+  return ray;
+}
--- a/engine/src/bitboard/bitmove.rs
+++ b/engine/src/bitboard/bitmove.rs
@@ -0,0 +1,77 @@
+use super::utils::*;
+
+#[derive(Copy, Clone, PartialEq, Eq)]
+pub struct BitMove {
+
+  move_type: BitMoveType,
+  from_square: u8,
+  to_square: u8,
+  promotion_piece: Option<u8>
+}
+
+impl BitMove {
+
+  #[inline]
+  pub fn quiet(from: u8, to: u8, promotion_piece: Option<u8>) -> Self {
+    return Self {
+      move_type: BitMoveType::Quiet,
+      from_square: from,
+      to_square: to,
+      promotion_piece: promotion_piece
+    };
+  }
+  #[inline]
+  pub fn capture(from: u8, to: u8, promotion_piece: Option<u8>) -> Self {
+    return Self {
+      move_type: BitMoveType::Capture,
+      from_square: from,
+      to_square: to,
+      promotion_piece: promotion_piece
+    };
+  }
+  #[inline]
+  pub fn castle(from: u8, to: u8) -> Self {
+    return Self {
+      move_type: BitMoveType::Castle,
+      from_square: from,
+      to_square: to,
+      promotion_piece: None
+    };
+  }
+
+  #[inline(always)]
+  pub fn move_type(&self) -> BitMoveType {
+    return self.move_type;
+  }
+  #[inline(always)]
+  pub fn from_square(&self) -> u8 {
+    return self.from_square;
+  }
+  #[inline(always)]
+  pub fn to_square(&self) -> u8 {
+    return self.to_square;
+  }
+  #[inline(always)]
+  pub fn promotion_piece(&self) -> Option<u8> {
+    return self.promotion_piece;
+  }
+
+  pub fn uci_notation(&self) -> String {
+    let mut notation = notation_from_square_number(self.from_square());
+    notation.push_str(&notation_from_square_number(self.to_square()));
+
+    if let Some(promotion_piece) = self.promotion_piece {
+      notation.push(get_character_by_piece_id(promotion_piece).to_ascii_lowercase());
+    }
+
+    return notation;
+  }
+}
+
+#[derive(Copy, Clone, PartialEq, Eq)]
+pub enum BitMoveType {
+  Quiet,
+  Capture,
+  Castle,
+  EnPassant
+}
--- a/engine/src/bitboard/board.rs
+++ b/engine/src/bitboard/board.rs
@@ -0,0 +1,199 @@
+use super::utils::try_get_square_number_from_notation;
+
+pub struct Board {
+  pub(in super) bitboards: [u64; 12],     // 0-5 -> white pieces (P, N, B, R, Q, K), 6-11 -> black pieces (p, n, b, r, q, k)
+  pub(in super) piece_board: [u8; 64],    // same as board indexes, 12 -> empty square
+  pub(in super) occupancy: [u64; 3],      // 0 -> white, 1 -> black, 2 -> combined
+  pub(in super) castling_rights: u8,      // 0b0000_KQkq
+  pub(in super) pinned_squares: [u8; 64], // 0 -> E-W, 1 -> NE-SW, 2 -> N-S, 3 -> SE-NW, 4 -> no pin
+  pub(in super) pin_mask: u64,            // 1 -> pin, 0 -> no pin
+  pub(in super) en_passant_square: u64,   // 1 -> ep square, 0 -> no ep square
+  pub(in super) side_to_move: u8          // 0 -> white to play, 1 -> black to play
+}
+
+impl Board {
+
+  pub fn new_clear() -> Self {
+    let mut bit_board: Self = Self {
+      bitboards: [0x0000_0000_0000_0000; 12],
+      piece_board: [12; 64],
+      occupancy: [0x0000_0000_0000_0000; 3],
+      castling_rights: 0b0000_0000,
+      pinned_squares: [4; 64],
+      pin_mask: 0u64,
+      en_passant_square: 0x0000_0000_0000_0000,
+      side_to_move: 0
+    };
+
+    return bit_board;
+  }
+  pub fn new() -> Self {
+    let mut bit_board: Board = Self {
+      bitboards: [0x0000_0000_0000_FF00,
+                0x0000_0000_0000_0042,
+                0x0000_0000_0000_0024,
+                0x0000_0000_0000_0081,
+                0x0000_0000_0000_0008,
+                0x0000_0000_0000_0010,
+                0x00FF_0000_0000_0000,
+                0x4200_0000_0000_0000,
+                0x2400_0000_0000_0000,
+                0x8100_0000_0000_0000,
+                0x0800_0000_0000_0000,
+                0x1000_0000_0000_0000],
+      piece_board: [12; 64],
+      occupancy: [0; 3],
+      castling_rights: 0b0000_1111,
+      pinned_squares: [4; 64],
+      pin_mask: 0u64,
+      en_passant_square: 0x0000_0000_0000_0000,
+      side_to_move: 0
+    };
+    bit_board.calc_occupancy();
+    bit_board.calc_piece_board();
+
+    return bit_board;
+  }
+  pub fn build(fen: &str) -> Self {
+    let mut board: Board = Board::new_clear();
+
+    let mut col: i32 = 0;
+    let mut row: i32 = 7;
+    let pieces: [char; 12] = ['p', 'n', 'b', 'r', 'q', 'k', 'P', 'N', 'B', 'R', 'Q', 'K'];
+    let mut coming_up: &str = fen;
+
+    for (i, c) in coming_up.chars().enumerate() {
+      if pieces.contains(&c) {
+        board.place_piece(row*8 + col, c);
+        col += 1;
+      }
+      else if ('1'..='8').contains(&c) {
+        col += c.to_string().parse::<i32>().unwrap();
+      }
+      else if c == '/' {
+        row -= 1;
+        col = 0;
+      }
+      else {
+        coming_up = &coming_up[i+1..];
+        break;
+      }
+    }
+    board.calc_occupancy();
+    
+    match coming_up.chars().next().unwrap() {
+      'w' => board.side_to_move = 0,
+      'b' => board.side_to_move = 1,
+       _  => panic!("invalid fen notation / to be handled later")
+    }
+    coming_up = &coming_up[2..];
+
+    for (i, c) in coming_up.chars().enumerate() {
+      match c {
+        'K' => board.castling_rights |= 1 << 3,
+        'Q' => board.castling_rights |= 1 << 2,
+        'k' => board.castling_rights |= 1 << 1,
+        'q' => board.castling_rights |= 1,
+        '-' => {
+          coming_up = &coming_up[i+2..];
+          break;
+        }
+         _  => {
+          coming_up = &coming_up[i+1..];
+          break;
+        }
+      }
+    }
+    match coming_up.chars().next().unwrap() {
+      '-' => {
+          coming_up = &coming_up[1..];
+        }
+       _  => {
+          let notation = coming_up.split(' ').next().unwrap();
+          if let Ok(epsq_index) = try_get_square_number_from_notation(notation) {
+            board.en_passant_square = 1 << epsq_index;
+          }
+       }
+    }
+    board.calc_pinned_squares();
+    board.calc_piece_board();
+
+    return board;
+  }
+
+  #[inline(always)]
+  pub fn bitboards(&self, index: usize) -> u64 {
+    return self.bitboards[index];
+  }
+  #[inline(always)]
+  pub fn piece_board(&self, sq: u8) -> u8 {
+    return self.piece_board[sq as usize];
+  }
+  #[inline(always)]
+  pub fn occupancy(&self, side: usize) -> u64 {
+    return self.occupancy[side];
+  }
+  #[inline(always)]
+  pub fn castling_rights(&self) -> u8 {
+    return self.castling_rights;
+  }
+  #[inline(always)]
+  pub fn pinned_squares(&self, sq: usize) -> u8 {
+    return self.pinned_squares[sq];
+  }
+  #[inline(always)]
+  pub fn pin_mask(&self) -> u64 {
+    return self.pin_mask;
+  }
+  #[inline(always)]
+  pub fn en_passant_square(&self) -> u64 {
+    return self.en_passant_square;
+  }
+  #[inline(always)]
+  pub fn side_to_move(&self) -> u8 {
+    return self.side_to_move;
+  }
+
+  #[inline(always)]
+  pub fn current_king_square(&self) -> u32 {
+    return if self.side_to_move == 0 { self.bitboards[5].trailing_zeros() } else { self.bitboards[11].trailing_zeros() };
+  }
+
+  fn calc_occupancy(&mut self) {
+    self.occupancy = [0u64; 3];
+    for b in 0..6 {
+      self.occupancy[0] |= self.bitboards[b];
+    }
+    for b in 6..12 {
+      self.occupancy[1] |= self.bitboards[b];
+    }
+    self.occupancy[2] = self.occupancy[0] | self.occupancy[1];
+  }
+  fn calc_piece_board(&mut self) {
+    for sq in 0..64 {
+      for b in 0..12 {
+        if (self.bitboards[b as usize] & 1 << sq) != 0 {
+          self.piece_board[sq] = b;
+        }
+      }
+    }
+  }
+
+  pub fn place_piece(&mut self, sq: i32, piece: char) {
+    match piece {
+      'p' => {self.bitboards[6] |= 1 << sq}
+      'n' => {self.bitboards[7] |= 1 << sq}
+      'b' => {self.bitboards[8] |= 1 << sq}
+      'r' => {self.bitboards[9] |= 1 << sq}
+      'q' => {self.bitboards[10] |= 1 << sq}
+      'k' => {self.bitboards[11] |= 1 << sq}
+      'P' => {self.bitboards[0] |= 1 << sq}
+      'N' => {self.bitboards[1] |= 1 << sq}
+      'B' => {self.bitboards[2] |= 1 << sq}
+      'R' => {self.bitboards[3] |= 1 << sq}
+      'Q' => {self.bitboards[4] |= 1 << sq}
+      'K' => {self.bitboards[5] |= 1 << sq}
+       _  => ()
+    }
+  }
+}
--- a/engine/src/bitboard/checkinfo.rs
+++ b/engine/src/bitboard/checkinfo.rs
@@ -0,0 +1,21 @@
+
+pub struct CheckInfo {
+  pub check_count: u8,
+  pub move_mask: u64
+}
+
+impl CheckInfo {
+
+  pub fn new() -> Self {
+    return Self {
+      check_count: 0,
+      move_mask: 0xFFFF_FFFF_FFFF_FFFF
+    }
+  }
+
+  #[inline(always)]
+  pub fn add_checker(&mut self, move_mask: u64) {
+    self.move_mask &= move_mask;
+    self.check_count += 1;
+  }
+}
--- a/engine/src/bitboard/legality.rs
+++ b/engine/src/bitboard/legality.rs
@@ -0,0 +1,127 @@
+use super::board::Board;
+use super::attackmaps::RAY_TABLE;
+use super::checkinfo::CheckInfo;
+use super::attacks::get_raycast_from_square_in_direction;
+
+impl Board {
+
+  pub fn check_test(&self) -> CheckInfo {
+    let mut check_info: CheckInfo = CheckInfo::new();
+    let offset: usize = 6 * self.side_to_move as usize;
+    let king: u64 = self.bitboards[5 + offset];
+    let king_sq = king.trailing_zeros() as usize;
+    let occupancy = self.occupancy[2];
+
+    // queen-rook checks (+)
+    let attacker_mask = self.bitboards[10 - offset] | self.bitboards[9 - offset];
+
+    for dir in [0, 2, 4, 6] {
+      let threat_mask: u64 = get_raycast_from_square_in_direction(occupancy, king_sq, dir);
+      if threat_mask & attacker_mask != 0 {
+        check_info.add_checker(threat_mask);
+      }
+    }
+
+    // queen-bishop checks (x)
+    let attacker_mask = self.bitboards[10 - offset] | self.bitboards[8 - offset];
+
+    for dir in [1, 3, 5, 7] {
+      let threat_mask = get_raycast_from_square_in_direction(occupancy, king_sq, dir);
+      if threat_mask & attacker_mask != 0 {
+        check_info.add_checker(threat_mask);
+      }
+    }
+
+    // knight checks (L)
+    let attacker_mask = self.bitboards[7 - offset];
+    let threat_mask = self.get_pseudo_knight_moves(king_sq as u32);
+    let checker = threat_mask & attacker_mask;
+    if checker != 0 {
+      check_info.add_checker(checker);
+    }
+
+    // pawn checks (v)
+    let attacker_mask = self.bitboards[6 - offset];
+    let threat_mask = self.get_pseudo_pawn_captures(king_sq as u32);
+    let checker = threat_mask & attacker_mask;
+    if checker != 0 {
+      check_info.add_checker(checker);
+    }
+
+    return check_info;
+  }
+
+  pub(in super) fn calc_pinned_squares(&mut self) {
+    self.pinned_squares = [4; 64];
+    self.pin_mask = 0u64;
+
+    let friendly_pieces: u64 = self.occupancy[self.side_to_move as usize];
+    let offset: usize = 6 * self.side_to_move as usize;
+    let king_board: u64 = self.bitboards[5 + offset];
+    let king_sq: u32 = king_board.trailing_zeros();
+    let opponent_queen_bishop_mask: u64 = self.bitboards[8 - offset] | self.bitboards[10 - offset];
+    let opponent_queen_rook_mask: u64 = self.bitboards[9 - offset] | self.bitboards[10 - offset];
+
+    // Queen-Rook directions
+    self.set_pinned_in_ray_direction(king_sq, friendly_pieces, opponent_queen_rook_mask, 0);
+    self.set_pinned_in_ray_direction(king_sq, friendly_pieces, opponent_queen_rook_mask, 2);
+    self.set_pinned_in_ray_direction(king_sq, friendly_pieces, opponent_queen_rook_mask, 4);
+    self.set_pinned_in_ray_direction(king_sq, friendly_pieces, opponent_queen_rook_mask, 6);
+
+    // Queen-Bishop directions
+    self.set_pinned_in_ray_direction(king_sq, friendly_pieces, opponent_queen_bishop_mask, 1);
+    self.set_pinned_in_ray_direction(king_sq, friendly_pieces, opponent_queen_bishop_mask, 3);
+    self.set_pinned_in_ray_direction(king_sq, friendly_pieces, opponent_queen_bishop_mask, 5);
+    self.set_pinned_in_ray_direction(king_sq, friendly_pieces, opponent_queen_bishop_mask, 7);
+  }
+
+  pub(in super) fn set_pinned_in_ray_direction(&mut self, king_sq: u32, friendly_pieces: u64, attackers: u64, dir: u8) {
+    let is_up: bool = dir / 4 == 0;
+    let mask: u64 = RAY_TABLE[king_sq as usize][dir as usize];
+    let blockers: u64 = self.occupancy[2] & mask;
+    if blockers == 0 { return; }
+    let first_blocker_sq: u32 = if is_up { blockers.trailing_zeros() } else { 63 - blockers.leading_zeros() };
+    if (friendly_pieces & 1 << first_blocker_sq) != 0 {
+      let blockers: u64 = blockers & !(1 << first_blocker_sq);
+      if blockers == 0 { return; }
+      let second_blocker_sq: u32 = if is_up { blockers.trailing_zeros() } else { 63 - blockers.leading_zeros() };
+
+      if (attackers & 1 << second_blocker_sq) != 0 {
+        self.pinned_squares[first_blocker_sq as usize] = dir % 4;
+        self.pin_mask |= 1 << first_blocker_sq;
+      }
+    }
+  }
+
+}
+
+// <----- TESTS ----->
+
+#[cfg(test)]
+mod tests {
+  use super::*;
+
+  #[test]
+  fn check_test_test() {
+
+    let fens = [
+      "rnb1k1nr/pppppppp/4q3/8/1b6/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1",      // no check
+      "rnb1k1nr/pppppppp/4q3/8/1b1P4/8/PPP1PPPP/RNBQKBNR w KQkq d3 0 1",   // single check
+      "rnb1k1nr/ppp1p2p/3pq1p1/8/1b1P1P2/8/PPP2PPP/RNBQKBNR w KQkq - 0 1"  // double check
+      ];
+    let expected_results = [
+      CheckInfo { check_count: 0, move_mask: 0xFFFF_FFFF_FFFF_FFFF },
+      CheckInfo { check_count: 1, move_mask: 0x0000_0000_0204_0800 },
+      CheckInfo { check_count: 2, move_mask: 0x0000_0000_0000_0000 }
+    ];
+
+    for test_nr in 0..3 {
+      let fen = fens[test_nr];
+      let board =  Board::build(fen);
+      let check_test_actual = board.check_test();
+      assert_eq!(check_test_actual.check_count, expected_results[test_nr].check_count);
+      assert_eq!(check_test_actual.move_mask, expected_results[test_nr].move_mask);
+    }
+
+  }
+}
--- a/engine/src/bitboard/movebuffer.rs
+++ b/engine/src/bitboard/movebuffer.rs
@@ -0,0 +1,44 @@
+use super::bitmove::BitMove;
+
+pub struct MoveBuffer {
+
+  buffer: [BitMove; 256],
+  count: usize
+}
+
+impl MoveBuffer {
+
+  pub fn new() -> Self {
+    return Self {
+      buffer: [BitMove::quiet(0, 0, None); 256],
+      count: 0
+    };
+  }
+
+  #[inline]
+  pub fn add(&mut self, bitmove: BitMove) {
+    self.buffer[self.count] = bitmove;
+    self.count += 1;
+  }
+  #[inline]
+  pub fn append(&mut self, other: &MoveBuffer) {
+    self.buffer[self.count..self.count + other.count()].copy_from_slice(other.contents());
+    self.count += other.count();
+  }
+  #[inline(always)]
+  pub fn clear(&mut self) {
+    self.count = 0;
+  }
+  #[inline(always)]
+  pub fn count(&self) -> usize{
+    return self.count;
+  }
+  #[inline(always)]
+  pub fn get(&self, idx: usize) -> &BitMove {
+    return &self.buffer[idx];
+  }
+  #[inline(always)]
+  pub fn contents(&self) -> &[BitMove] {
+    return &self.buffer[0..self.count];
+  } 
+}
--- a/engine/src/bitboard/utils.rs
+++ b/engine/src/bitboard/utils.rs
@@ -27,6 +27,32 @@ pub fn notation_from_square_number(sq: u8) -> String {
  return notation;
 }

+pub fn try_get_square_number_from_notation(notation: &str) -> Result<u8, ()> {
+
+  let file = match notation.chars().nth(0).unwrap() {
+    'a' => 0,
+    'b' => 1,
+    'c' => 2,
+    'd' => 3,
+    'e' => 4,
+    'f' => 5,
+    'g' => 6,
+    'h' => 7,
+     _  => { return Result::Err(()); }
+  };
+  if let Some(rank) = notation.chars().nth(1) {
+    return Result::Ok(file + 8 * (rank.to_digit(10).unwrap() as u8) - 8);
+  }
+  else {
+    return Result::Err(());
+  }
+}
+
+const PIECE_CHARACTERS: [char; 12] = ['P', 'N', 'B', 'R', 'Q', 'K', 'p', 'n', 'b', 'r', 'q', 'k'];
+pub fn get_character_by_piece_id(id: u8) -> char {
+  return PIECE_CHARACTERS[id as usize];
+}
+

 // <----- TESTS ----->

--- a/engine/src/boardsquare.rs
+++ b/engine/src/boardsquare.rs
@@ -0,0 +1,31 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize)]
+pub struct BoardSquare {
+    pub x: usize,
+    pub y: usize,
+}
+
+impl BoardSquare {
+    pub fn new() -> Self {
+        return Self { x: 0, y: 0 };
+    }
+
+    pub fn from_coord(x: usize, y: usize) -> Self {
+        #[cfg(debug_assertions)]
+        {
+            if x > 7 {
+                println!(
+                    "Warning: x coordinate of square is bigger than 7, it might not be on the board!"
+                );
+            }
+            if y > 7 {
+                println!(
+                    "Warning: y coordinate of square is bigger than 7, it might not be on the board!"
+                );
+            }
+        }
+        return Self { x: x, y: y };
+    }
+}
+
--- a/engine/src/chessmove.rs
+++ b/engine/src/chessmove.rs
@@ -0,0 +1,71 @@
+use crate::piecetype;
+
+use super::boardsquare::BoardSquare;
+use super::movetype::MoveType;
+use super::piecetype::PieceType;
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize)]
+pub struct ChessMove {
+    pub move_type: MoveType,
+    pub piece_type: PieceType,
+    pub from_square: BoardSquare,
+    pub to_square: BoardSquare,
+    pub rook_from: BoardSquare,
+    pub rook_to: BoardSquare,
+    pub promotion_piece: Option<PieceType>,
+}
+
+impl ChessMove {
+    pub fn quiet(
+        piece_type: PieceType,
+        from_square: BoardSquare,
+        to_square: BoardSquare,
+        promotion_piece: Option<PieceType>,
+    ) -> Self {
+        return Self {
+            move_type: MoveType::Quiet,
+            piece_type: piece_type,
+            from_square: from_square,
+            to_square: to_square,
+            rook_from: BoardSquare::new(),
+            rook_to: BoardSquare::new(),
+            promotion_piece: promotion_piece,
+        };
+    }
+
+    pub fn capture(
+        piece_type: PieceType,
+        from_square: BoardSquare,
+        to_square: BoardSquare,
+        promotion_piece: Option<PieceType>,
+    ) -> Self {
+        return Self {
+            move_type: MoveType::Capture,
+            piece_type: piece_type,
+            from_square: from_square,
+            to_square: to_square,
+            rook_from: BoardSquare::new(),
+            rook_to: BoardSquare::new(),
+            promotion_piece: promotion_piece,
+        };
+    }
+
+    pub fn castle(
+        piece_type: PieceType,
+        from_square: BoardSquare,
+        to_square: BoardSquare,
+        rook_from: BoardSquare,
+        rook_to: BoardSquare,
+    ) -> Self {
+        return Self {
+            move_type: MoveType::Quiet,
+            piece_type: piece_type,
+            from_square: from_square,
+            to_square: to_square,
+            rook_from: rook_from,
+            rook_to: rook_to,
+            promotion_piece: None,
+        };
+    }
+}
--- a/engine/src/gameend.rs
+++ b/engine/src/gameend.rs
@@ -0,0 +1,6 @@
+
+pub enum GameEnd {
+  WhiteWon(String),
+  BlackWon(String),
+  Draw(String)
+}
--- a/engine/src/lib.rs
+++ b/engine/src/lib.rs
@@ -0,0 +1,24 @@
+mod bitboard;
+pub mod chessmove;
+pub mod piecetype;
+pub mod boardsquare;
+pub mod movetype;
+pub mod gameend;
+
+use chessmove::ChessMove;
+use gameend::GameEnd;
+
+pub fn get_available_moves(fen: &str) -> Vec<ChessMove> {
+  println!("get_available_moves answered");
+  return vec![];
+}
+
+pub fn is_game_over(fen: &str) -> Option<GameEnd> {
+  println!("is_game_over answered");
+  return None;
+}
+
+pub fn get_board_after_move(fen: &str, chess_move: &ChessMove) -> String {
+  println!("get_board_after_move answered");
+  return String::from("rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1");
+}
--- a/engine/src/movetype.rs
+++ b/engine/src/movetype.rs
@@ -0,0 +1,11 @@
+use serde::Deserialize;
+use serde::Serialize;
+
+#[derive(Serialize, Deserialize)]
+pub enum MoveType {
+    Quiet,
+    Capture,
+    Castle,
+    EnPassant,
+}
+
--- a/engine/src/piecetype.rs
+++ b/engine/src/piecetype.rs
@@ -0,0 +1,18 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize)]
+pub enum PieceType {
+    WhitePawn,
+    WhiteKnight,
+    WhiteBishop,
+    WhiteRook,
+    WhiteQueen,
+    WhiteKing,
+    BlackPawn,
+    BlackKnight,
+    BlackBishop,
+    BlackRook,
+    BlackQueen,
+    BlackKing,
+}
+
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -4,3 +4,19 @@ version = "0.1.0"
 edition = "2024"

 [dependencies]
+tokio = { version = "1", features = ["full"] }
+tokio-tungstenite = "0.21"
+tungstenite = "0.21"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+futures-util = "0.3.31"
+url = "2.5.7"
+uuid = {version = "1.18.1", features = ["v4", "serde"] }
+anyhow = "1.0.100"
+rand = "0.9.2"
+engine = {path = "../engine/"}
+
+
+[[bin]]
+name = "client"
+path = "src/bin/client.rs"
--- a/server/src/bin/client.rs
+++ b/server/src/bin/client.rs
@@ -0,0 +1,195 @@
+use futures_util::{SinkExt, StreamExt};
+use serde::{Deserialize, Serialize};
+use std::io::{self, Write};
+use tokio_tungstenite::{connect_async, tungstenite::Message};
+use url::Url;
+
+#[derive(Serialize, Deserialize, Debug)]
+#[serde(tag = "type")]
+enum ClientMessage {
+    Join { username: String },
+    FindMatch,
+    Move { from: String, to: String },
+    Resign,
+    Chat { text: String },
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+struct ServerMessage {
+    #[serde(rename = "type")]
+    message_type: String,
+    player_id: Option<String>,
+    match_id: Option<String>,
+    opponent: Option<String>,
+    color: Option<String>,
+    reason: Option<String>,
+}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    println!("Knightly Chess Client");
+    println!("========================");
+
+    // Get server address from user
+    print!("Enter server address [ws://127.0.0.1:9001]: ");
+    io::stdout().flush()?;
+    let mut server_addr = String::new();
+    io::stdin().read_line(&mut server_addr)?;
+    let server_addr = server_addr.trim();
+    let server_addr = if server_addr.is_empty() {
+        "ws://127.0.0.1:9001".to_string()
+    } else {
+        server_addr.to_string()
+    };
+
+    // Connect to server
+    println!("Connecting to {}...", server_addr);
+    let url = Url::parse(&server_addr)?;
+    let (ws_stream, _) = connect_async(url).await?;
+    println!("Connected to server!");
+
+    let (mut write, mut read) = ws_stream.split();
+
+    // Spawn a task to handle incoming messages
+    let read_handle = tokio::spawn(async move {
+        while let Some(message) = read.next().await {
+            match message {
+                Ok(msg) => {
+                    if msg.is_text() {
+                        let text = msg.to_text().unwrap();
+                        println!("\nServer: {}", text);
+
+                        // Try to parse as structured message
+                        if let Ok(parsed) = serde_json::from_str::<ServerMessage>(text) {
+                            match parsed.message_type.as_str() {
+                                "welcome" => {
+                                    if let Some(player_id) = parsed.player_id {
+                                        println!("Welcome! Your player ID: {}", player_id);
+                                    }
+                                }
+                                _ => {
+                                    println!("cucc: {:?}", parsed);
+                                }
+                            }
+                        }
+                    }
+                }
+                Err(e) => {
+                    eprintln!("Error receiving message: {}", e);
+                    break;
+                }
+            }
+        }
+    });
+
+    // Main loop for sending messages
+    println!("\nAvailable commands:");
+    println!("  join <username>    - Join the server");
+    println!("  findmatch          - Find a match");
+    println!("  move <from> <to>   - Make a move (e.g., move e2 e4)");
+    println!("  chat <message>     - Send chat message");
+    println!("  resign             - Resign from current game");
+    println!("  quit               - Exit client");
+    println!();
+
+    loop {
+        print!("➡️  Enter command: ");
+        io::stdout().flush()?;
+
+        let mut input = String::new();
+        io::stdin().read_line(&mut input)?;
+        let input = input.trim();
+
+        if input.is_empty() {
+            continue;
+        }
+
+        let parts: Vec<&str> = input.split_whitespace().collect();
+        let command = parts[0].to_lowercase();
+
+        match command.as_str() {
+            "quit" | "exit" => {
+                println!("👋 Goodbye!");
+                break;
+            }
+            "join" => {
+                if parts.len() >= 2 {
+                    let username = parts[1..].join(" ");
+                    let message = ClientMessage::Join { username };
+                    send_message(&mut write, &message).await?;
+                } else {
+                    println!("Usage: join <username>");
+                }
+            }
+            "findmatch" | "find" => {
+                let message = ClientMessage::FindMatch;
+                send_message(&mut write, &message).await?;
+                println!("🔍 Searching for a match...");
+            }
+            "move" => {
+                if parts.len() >= 3 {
+                    let from = parts[1].to_string();
+                    let to = parts[2].to_string();
+                    let message = ClientMessage::Move { from, to };
+                    send_message(&mut write, &message).await?;
+                    println!("♟️  Sent move: {} -> {}", parts[1], parts[2]);
+                } else {
+                    println!("Usage: move <from> <to> (e.g., move e2 e4)");
+                }
+            }
+            "chat" => {
+                if parts.len() >= 2 {
+                    let text = parts[1..].join(" ");
+                    let message = ClientMessage::Chat { text };
+                    send_message(&mut write, &message).await?;
+                } else {
+                    println!("Usage: chat <message>");
+                }
+            }
+            "resign" => {
+                let message = ClientMessage::Resign;
+                send_message(&mut write, &message).await?;
+                println!("Resigned from current game");
+            }
+            "help" => {
+                print_help();
+            }
+            _ => {
+                println!(
+                    "Unknown command: {}. Type 'help' for available commands.",
+                    command
+                );
+            }
+        }
+    }
+
+    // Cleanup
+    read_handle.abort();
+    Ok(())
+}
+
+async fn send_message(
+    write: &mut futures_util::stream::SplitSink<
+        tokio_tungstenite::WebSocketStream<
+            tokio_tungstenite::MaybeTlsStream<tokio::net::TcpStream>,
+        >,
+        Message,
+    >,
+    message: &ClientMessage,
+) -> Result<(), Box<dyn std::error::Error>> {
+    let json = serde_json::to_string(message)?;
+    write.send(Message::Text(json)).await?;
+    Ok(())
+}
+
+fn print_help() {
+    println!("\n📖 Available Commands:");
+    println!("  join <username>    - Register with a username");
+    println!("  findmatch          - Enter matchmaking queue");
+    println!("  move <from> <to>   - Make a chess move");
+    println!("  chat <message>     - Send chat to opponent");
+    println!("  resign             - Resign from current game");
+    println!("  help               - Show this help");
+    println!("  quit               - Exit the client");
+    println!();
+}
--- a/server/src/connection.rs
+++ b/server/src/connection.rs
@@ -0,0 +1,279 @@
+use crate::connection::ClientEvent::*;
+use engine::get_available_moves;
+use futures_util::{SinkExt, StreamExt};
+use serde::{Deserialize, Serialize};
+use std::collections::{HashMap, VecDeque};
+use std::sync::Arc;
+use tokio::net::TcpStream;
+use tokio::sync::Mutex;
+use tokio_tungstenite::{WebSocketStream, tungstenite::Message};
+use uuid::Uuid;
+
+// Type definitions
+pub type Tx = futures_util::stream::SplitSink<WebSocketStream<TcpStream>, Message>;
+pub type ConnectionMap = Arc<Mutex<HashMap<Uuid, PlayerConnection>>>;
+pub type MatchMap = Arc<Mutex<HashMap<Uuid, GameMatch>>>;
+pub type WaitingQueue = Arc<Mutex<VecDeque<Uuid>>>;
+
+// Helper functions to create new instances
+pub fn new_connection_map() -> ConnectionMap {
+    Arc::new(Mutex::new(HashMap::new()))
+}
+
+pub fn new_match_map() -> MatchMap {
+    Arc::new(Mutex::new(HashMap::new()))
+}
+
+pub fn new_waiting_queue() -> WaitingQueue {
+    Arc::new(Mutex::new(VecDeque::new()))
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct Step {
+    pub from: String,
+    pub to: String,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+#[serde(tag = "type")]
+enum ClientEvent {
+    Join { username: String },
+    FindMatch,
+    Move { from: String, to: String },
+    Resign,
+    Chat { text: String },
+    RequestLegalMoves { fen: String },
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct EventResponse {
+    pub response: Result<(), String>,
+}
+
+#[derive(Debug)]
+pub struct PlayerConnection {
+    pub id: Uuid,
+    pub username: Option<String>,
+    pub tx: Tx,
+    pub current_match: Option<Uuid>,
+}
+
+#[derive(Debug, Clone)]
+pub struct GameMatch {
+    pub id: Uuid,
+    pub player_white: Uuid,
+    pub player_black: Uuid,
+    pub board_state: String,
+    pub move_history: Vec<String>,
+}
+
+// Message sending utilities
+pub async fn send_message_to_player(
+    connections: &ConnectionMap,
+    player_id: Uuid,
+    message: &str,
+) -> Result<(), Box<dyn std::error::Error>> {
+    let mut connections_lock = connections.lock().await;
+    if let Some(connection) = connections_lock.get_mut(&player_id) {
+        connection
+            .tx
+            .send(Message::Text(message.to_string()))
+            .await?;
+    }
+    Ok(())
+}
+
+pub async fn broadcast_to_all(connections: &ConnectionMap, message: &str) {
+    let mut connections_lock = connections.lock().await;
+    let mut dead_connections = Vec::new();
+
+    for (id, connection) in connections_lock.iter_mut() {
+        if let Err(e) = connection.tx.send(Message::Text(message.to_string())).await {
+            eprintln!("Failed to send to {}: {}", id, e);
+            dead_connections.push(*id);
+        }
+    }
+
+    // Clean up dead connections
+    for dead_id in dead_connections {
+        connections_lock.remove(&dead_id);
+    }
+}
+
+pub async fn broadcast_to_match(
+    connections: &ConnectionMap,
+    matches: &MatchMap,
+    match_id: Uuid,
+    message: &str,
+) -> Result<(), Box<dyn std::error::Error>> {
+    let matches_lock = matches.lock().await;
+    if let Some(game_match) = matches_lock.get(&match_id) {
+        send_message_to_player(connections, game_match.player_white, message).await?;
+        send_message_to_player(connections, game_match.player_black, message).await?;
+    }
+    Ok(())
+}
+
+// Connection handler
+pub async fn handle_connection(
+    stream: TcpStream,
+    connections: ConnectionMap,
+    matches: MatchMap,
+    waiting_queue: WaitingQueue,
+) -> anyhow::Result<()> {
+    use tokio_tungstenite::accept_async;
+
+    let ws_stream = accept_async(stream).await?;
+    let (write, mut read) = ws_stream.split();
+
+    let player_id = Uuid::new_v4();
+
+    // Store the connection
+    {
+        let mut conn_map = connections.lock().await;
+        conn_map.insert(
+            player_id,
+            PlayerConnection {
+                id: player_id,
+                username: None,
+                tx: write,
+                current_match: None,
+            },
+        );
+    }
+
+    println!("New connection: {}", player_id);
+
+    // Send welcome message
+    let _ = send_message_to_player(
+        &connections,
+        player_id,
+        &format!(r#"{{"type": "welcome", "player_id": "{}"}}"#, player_id),
+    )
+    .await;
+
+    // Message processing loop
+    while let Some(Ok(message)) = read.next().await {
+        if message.is_text() {
+            let text = message.to_text()?;
+            println!("Received from {}: {}", player_id, text);
+
+            let client_data: ClientEvent = serde_json::from_str(text)
+                .expect("Failed to convert data into json at handle_connection");
+
+            println!("client: {:?}", client_data);
+
+            match client_data {
+                Join { username } => {
+                    {
+                        let mut conn_map = connections.lock().await;
+                        let player = conn_map.get_mut(&player_id).unwrap();
+                        player.username = Some(username);
+                    }
+
+                    //respone to client
+                    let response: EventResponse = EventResponse {
+                        response: core::result::Result::Ok(()),
+                    };
+
+                    println!("response: {:?}", response);
+
+                    let _ = send_message_to_player(
+                        &connections,
+                        player_id,
+                        &serde_json::to_string(&response).unwrap(),
+                    )
+                    .await;
+                }
+                FindMatch => {
+                    let mut wait_queue = waiting_queue.lock().await;
+                    wait_queue.push_back(player_id.clone());
+                    println!("Appended {} to the waiting queue", player_id);
+                    println!("queue {:?}", wait_queue);
+                }
+                Move { from, to } => {}
+                RequestLegalMoves { fen } => {
+                    let moves = get_available_moves(&fen);
+                    let _ = send_message_to_player(
+                        &connections,
+                        player_id,
+                        &serde_json::to_string(&moves).unwrap(),
+                    )
+                    .await;
+                    println!("Sent moves to player: {}", player_id);
+                }
+                _ => {}
+            }
+        }
+    }
+
+    // Cleanup on disconnect
+    cleanup_player(player_id, &connections, &matches, &waiting_queue).await;
+    println!("Connection {} closed", player_id);
+
+    Ok(())
+}
+
+async fn cleanup_player(
+    player_id: Uuid,
+    connections: &ConnectionMap,
+    _matches: &MatchMap,
+    waiting_queue: &WaitingQueue,
+) {
+    // Remove from waiting queue
+    waiting_queue.lock().await.retain(|&id| id != player_id);
+
+    // Remove from connections
+    connections.lock().await.remove(&player_id);
+
+    println!("Cleaned up player {}", player_id);
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use uuid::Uuid;
+
+    #[tokio::test]
+    async fn test_send_message_to_nonexistent_player() {
+        let connections = new_connection_map();
+        let player_id = Uuid::new_v4();
+
+        let result = send_message_to_player(&connections, player_id, "test message").await;
+        assert!(result.is_ok(), "Should handle missing player gracefully");
+    }
+
+    #[tokio::test]
+    async fn test_broadcast_to_empty_connections() {
+        let connections = new_connection_map();
+
+        broadcast_to_all(&connections, "test broadcast").await;
+
+        let conn_map = connections.lock().await;
+        assert!(conn_map.is_empty(), "Connections should still be empty");
+    }
+
+    #[tokio::test]
+    async fn test_connection_cleanup() {
+        let connections = new_connection_map();
+        let matches = new_match_map();
+        let waiting_queue = new_waiting_queue();
+
+        let player_id = Uuid::new_v4();
+
+        {
+            waiting_queue.lock().await.push_back(player_id);
+            assert_eq!(waiting_queue.lock().await.len(), 1);
+        }
+
+        cleanup_player(player_id, &connections, &matches, &waiting_queue).await;
+
+        {
+            let queue = waiting_queue.lock().await;
+            assert!(
+                !queue.contains(&player_id),
+                "Player should be removed from waiting queue"
+            );
+        }
+    }
+}
--- a/server/src/main.rs
+++ b/server/src/main.rs
@@ -1,3 +1,43 @@
-fn main() {
-    println!("Hello, world!");
+mod connection;
+mod matchmaking;
+mod messages;
+use tokio::net::TcpListener;
+
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
+    let address = "0.0.0.0:9001";
+    let listener = TcpListener::bind(address).await?;
+    println!("Server running on ws://{}", address);
+
+    // Shared state initialization using the new helper functions
+    let connections = connection::new_connection_map();
+    let matches = connection::new_match_map();
+    let waiting_queue = connection::new_waiting_queue();
+
+    // Start matchmaking background task
+    let matchmaker = matchmaking::MatchmakingSystem::new(
+        connections.clone(),
+        matches.clone(),
+        waiting_queue.clone(),
+    );
+    tokio::spawn(async move {
+        matchmaker.run().await;
+    });
+
+    // Main connection loop
+    while let Ok((stream, _)) = listener.accept().await {
+        let connections = connections.clone();
+        let matches = matches.clone();
+        let waiting_queue = waiting_queue.clone();
+
+        tokio::spawn(async move {
+            if let Err(e) =
+                connection::handle_connection(stream, connections, matches, waiting_queue).await
+            {
+                eprintln!("Connection error: {}", e);
+            }
+        });
+    }
+
+    Ok(())
 }
--- a/server/src/matchmaking.rs
+++ b/server/src/matchmaking.rs
@@ -0,0 +1,183 @@
+use crate::connection::{ConnectionMap, GameMatch, MatchMap, WaitingQueue};
+use rand::random;
+use uuid::Uuid;
+
+pub struct MatchmakingSystem {
+    connections: ConnectionMap,
+    matches: MatchMap,
+    waiting_queue: WaitingQueue,
+}
+
+impl MatchmakingSystem {
+    pub fn new(connections: ConnectionMap, matches: MatchMap, waiting_queue: WaitingQueue) -> Self {
+        Self {
+            connections,
+            matches,
+            waiting_queue,
+        }
+    }
+
+    pub async fn run(&self) {
+        loop {
+            self.try_create_match().await;
+            tokio::time::sleep(tokio::time::Duration::from_secs(1)).await;
+        }
+    }
+
+    async fn try_create_match(&self) {
+        let mut queue = self.waiting_queue.lock().await;
+
+        while queue.len() >= 2 {
+            let player1 = queue.pop_front().unwrap();
+            let player2 = queue.pop_front().unwrap();
+
+            let match_id = Uuid::new_v4();
+            let (white_player, black_player) = if random::<bool>() {
+                (player1, player2)
+            } else {
+                (player2, player1)
+            };
+
+            let game_match = GameMatch {
+                id: match_id,
+                player_white: white_player,
+                player_black: black_player,
+                board_state: "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1".to_string(),
+                move_history: Vec::new(),
+            };
+
+            // Store the match
+            self.matches.lock().await.insert(match_id, game_match);
+
+            // Update player connections
+            {
+                let mut conn_map = self.connections.lock().await;
+                if let Some(player) = conn_map.get_mut(&white_player) {
+                    player.current_match = Some(match_id);
+                }
+                if let Some(player) = conn_map.get_mut(&black_player) {
+                    player.current_match = Some(match_id);
+                }
+            }
+
+            // Notify players
+            self.notify_players(white_player, black_player, match_id)
+                .await;
+        }
+    }
+
+    async fn notify_players(&self, white: Uuid, black: Uuid, match_id: Uuid) {
+        let conn_map = self.connections.lock().await;
+
+        // Get opponent names
+        let white_name = conn_map
+            .get(&black)
+            .and_then(|c| c.username.as_deref())
+            .unwrap_or("Opponent");
+        let black_name = conn_map
+            .get(&white)
+            .and_then(|c| c.username.as_deref())
+            .unwrap_or("Opponent");
+
+        // Notify white player
+        if let Some(_) = conn_map.get(&white) {
+            let message = format!(
+                r#"{{"type": "match_found", "match_id": "{}", "opponent": "{}", "color": "white"}}"#,
+                match_id, black_name
+            );
+            let _ =
+                crate::connection::send_message_to_player(&self.connections, white, &message).await;
+        }
+
+        // Notify black player
+        if let Some(_) = conn_map.get(&black) {
+            let message = format!(
+                r#"{{"type": "match_found", "match_id": "{}", "opponent": "{}", "color": "black"}}"#,
+                match_id, white_name
+            );
+            let _ =
+                crate::connection::send_message_to_player(&self.connections, black, &message).await;
+        }
+
+        println!("Match created: {} (white) vs {} (black)", white, black);
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use uuid::Uuid;
+
+    use crate::connection::new_connection_map;
+    use crate::connection::new_match_map;
+    use crate::connection::new_waiting_queue;
+
+    #[tokio::test]
+    async fn test_matchmaking_creates_matches() {
+        let connections = new_connection_map();
+        let matches = new_match_map();
+        let waiting_queue = new_waiting_queue();
+
+        let matchmaking =
+            MatchmakingSystem::new(connections.clone(), matches.clone(), waiting_queue.clone());
+
+        let player1 = Uuid::new_v4();
+        let player2 = Uuid::new_v4();
+
+        {
+            waiting_queue.lock().await.push_back(player1);
+            waiting_queue.lock().await.push_back(player2);
+        }
+
+        matchmaking.try_create_match().await;
+
+        {
+            let matches_map = matches.lock().await;
+            assert_eq!(matches_map.len(), 1, "Should create one match");
+
+            let game_match = matches_map.values().next().unwrap();
+            assert!(game_match.player_white == player1 || game_match.player_white == player2);
+            assert!(game_match.player_black == player1 || game_match.player_black == player2);
+            assert_ne!(
+                game_match.player_white, game_match.player_black,
+                "Players should be different"
+            );
+        }
+
+        {
+            let queue = waiting_queue.lock().await;
+            assert!(
+                queue.is_empty(),
+                "Waiting queue should be empty after matchmaking"
+            );
+        }
+    }
+
+    #[tokio::test]
+    async fn test_matchmaking_with_odd_players() {
+        let connections = new_connection_map();
+        let matches = new_match_map();
+        let waiting_queue = new_waiting_queue();
+
+        let matchmaking =
+            MatchmakingSystem::new(connections.clone(), matches.clone(), waiting_queue.clone());
+
+        let player1 = Uuid::new_v4();
+        {
+            waiting_queue.lock().await.push_back(player1);
+        }
+
+        matchmaking.try_create_match().await;
+
+        {
+            let matches_map = matches.lock().await;
+            assert!(
+                matches_map.is_empty(),
+                "Should not create match with only one player"
+            );
+
+            let queue = waiting_queue.lock().await;
+            assert_eq!(queue.len(), 1, "Should keep single player in queue");
+        }
+    }
+}
--- a/server/src/messages.rs
+++ b/server/src/messages.rs
@@ -0,0 +1,36 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize, Debug)]
+#[serde(tag = "type")]
+pub enum ServerMessage {
+    Welcome {
+        player_id: String,
+    },
+    MatchFound {
+        match_id: String,
+        opponent: String,
+        color: String,
+    },
+    GameStart {
+        fen: String,
+        white_time: u32,
+        black_time: u32,
+    },
+    MoveResult {
+        valid: bool,
+        from: String,
+        to: String,
+        new_fen: String,
+    },
+    OpponentMove {
+        from: String,
+        to: String,
+    },
+    GameEnd {
+        result: String,
+        reason: String,
+    },
+    Error {
+        reason: String,
+    },
+}
--- a/ui/Cargo.lock
+++ b/ui/Cargo.lock
--- a/ui/Cargo.toml
+++ b/ui/Cargo.toml
@@ -4,3 +4,7 @@ version = "0.1.0"
 edition = "2024"

 [dependencies]
+eframe = "0.33.0"
+egui = "0.33.0"
+tokio-tungstenite = "0.28.0"
+winit = "0.30.12"
--- a/ui/fonts/DejaVuSans.ttf
+++ b/ui/fonts/DejaVuSans.ttf
--- a/ui/src/main.rs
+++ b/ui/src/main.rs
@@ -1,3 +1,431 @@
-fn main() {
-    println!("Hello, world!");
+use eframe::egui;
+
+fn main() -> eframe::Result<()> {
+    let options = eframe::NativeOptions{
+        viewport: egui::ViewportBuilder::default()
+            .with_fullscreen(true)
+            .with_min_inner_size(egui::vec2(800.0, 600.0)) // Minimum width, height
+            .with_inner_size(egui::vec2(7680.0, 4320.0)), // Initial size
+        ..Default::default()
+    };
+    eframe::run_native(
+    "Knightly",
+    options,
+    Box::new(|cc| {
+        let mut fonts = egui::FontDefinitions::default();
+        fonts.font_data.insert(
+            "symbols".to_owned(),
+            egui::FontData::from_static(include_bytes!("../fonts/DejaVuSans.ttf")).into(),
+        );
+        fonts
+            .families
+            .entry(egui::FontFamily::Proportional)
+            .or_default()
+            .insert(0, "symbols".to_owned());
+        cc.egui_ctx.set_fonts(fonts);
+        Ok(Box::new(ChessApp::default()))
+    }),
+)
+}
+
+#[derive(Clone, Copy, PartialEq, Debug)]
+enum Piece {
+    King(char),
+    Queen(char),
+    Rook(char),
+    Bishop(char),
+    Knight(char),
+    Pawn(char),
+    Empty,
+}
+
+impl Piece {
+    fn symbol(&self) -> &'static str {
+        match self {
+            Piece::King('w') => "♔",
+            Piece::Queen('w') => "♕",
+            Piece::Rook('w') => "♖",
+            Piece::Bishop('w') => "♗",
+            Piece::Knight('w') => "♘",
+            Piece::Pawn('w') => "♙",
+            Piece::King('b') => "♚",
+            Piece::Queen('b') => "♛",
+            Piece::Rook('b') => "♜",
+            Piece::Bishop('b') => "♝",
+            Piece::Knight('b') => "♞",
+            Piece::Pawn('b') => "♟︎",
+            Piece::Empty => "",
+            _ => "",
+        }
+    }
+}
+
+#[derive(PartialEq, Debug)]
+enum Turn {
+    White,
+    Black,
+}
+
+enum AppState {
+    MainMenu,
+    InGame,
+    Settings,
+}
+
+struct ChessApp {
+    fullscreen: bool,
+    resolutions: Vec<(u32, u32)>,
+    selected_resolution: usize,
+    state: AppState,
+    board: [[Piece; 8]; 8],
+    selected: Option<(usize, usize)>,
+    turn: Turn,
+    pending_settings: PendingSettings,
+    server_port: String,
+}
+
+#[derive(Default)]
+struct PendingSettings {
+    fullscreen: bool,
+    selected_resolution: usize,
+    server_port: String,
+}
+
+impl Default for ChessApp {
+    fn default() -> Self {
+        Self {
+            fullscreen: true,
+            resolutions: vec![
+                (1280, 720),
+                (1600, 900),
+                (1920, 1080),
+                (2560, 1440),
+                (3840, 2160),
+                (7680, 4320),
+            ],
+            selected_resolution: 2, // Default to 1920x1080
+            state: AppState::MainMenu,
+            board: Self::starting_board(),
+            selected: None,
+            turn: Turn::White,
+            pending_settings: PendingSettings::default(),
+            server_port: "8080".to_string(), // Default port
+        }
+    }
+}
+
+impl ChessApp {
+    fn starting_board() -> [[Piece; 8]; 8] {
+        use Piece::*;
+        [
+            [
+                Rook('b'),
+                Knight('b'),
+                Bishop('b'),
+                Queen('b'),
+                King('b'),
+                Bishop('b'),
+                Knight('b'),
+                Rook('b'),
+            ],
+            [Pawn('b'); 8],
+            [Empty; 8],
+            [Empty; 8],
+            [Empty; 8],
+            [Empty; 8],
+            [Pawn('w'); 8],
+            [
+                Rook('w'),
+                Knight('w'),
+                Bishop('w'),
+                Queen('w'),
+                King('w'),
+                Bishop('w'),
+                Knight('w'),
+                Rook('w'),
+            ],
+        ]
+    }
+
+    fn handle_click(&mut self, row: usize, col: usize) {
+        if let Some((r, c)) = self.selected {
+            let piece = self.board[r][c];
+            self.board[r][c] = Piece::Empty;
+            self.board[row][col] = piece;
+            self.selected = None;
+            self.turn = if self.turn == Turn::White {
+                Turn::Black
+            } else {
+                Turn::White
+            };
+        } else {
+            if self.board[row][col] != Piece::Empty {
+                self.selected = Some((row, col));
+            }
+        }
+    }
+
+    fn apply_settings(&mut self, ctx: &egui::Context) {
+        self.fullscreen = self.pending_settings.fullscreen;
+        self.selected_resolution = self.pending_settings.selected_resolution;
+        self.server_port = self.pending_settings.server_port.clone();
+        
+        if let Some(resolution) = self.resolutions.get(self.selected_resolution) {
+            ctx.send_viewport_cmd(egui::ViewportCommand::InnerSize(
+                egui::Vec2::new(resolution.0 as f32, resolution.1 as f32)
+            ));
+        }
+        
+        ctx.send_viewport_cmd(egui::ViewportCommand::Fullscreen(self.fullscreen));
+    }
+
+    fn enter_settings(&mut self) {
+        self.pending_settings.fullscreen = self.fullscreen;
+        self.pending_settings.selected_resolution = self.selected_resolution;
+        self.pending_settings.server_port = self.server_port.clone();
+        self.state = AppState::Settings;
+    }
+}
+
+impl eframe::App for ChessApp {
+    fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
+        match self.state {
+            AppState::MainMenu => {
+                egui::CentralPanel::default().show(ctx, |ui| {
+                    ui.vertical_centered(|ui| {
+                        ui.heading("♞ Knightly ♞");
+                        ui.add_space(30.0);
+
+                        if ui.add_sized([300.0, 60.0], egui::Button::new("Play")).clicked() {
+                            self.state = AppState::InGame;
+                        }
+                        ui.add_space(8.0);
+                        
+                        if ui.add_sized([300.0, 60.0], egui::Button::new("Settings")).clicked() {
+                            self.enter_settings();
+                        }
+                        ui.add_space(8.0);
+                        
+                        if ui
+                            .add_sized([300.0, 60.0], egui::Button::new("Quit"))
+                            .clicked()
+                        {
+                            std::process::exit(0);
+                        }
+                    });
+                });
+            }
+
+            AppState::Settings => {
+                egui::CentralPanel::default().show(ctx, |ui| {
+                    ui.vertical_centered(|ui| {
+                        ui.heading("Settings");
+                        ui.add_space(30.0);
+
+                        // Fullscreen toggle
+                        ui.horizontal(|ui| {
+                            ui.label("Fullscreen:");
+                            if ui.checkbox(&mut self.pending_settings.fullscreen, "").changed() {
+                                // If enabling fullscreen, we might want to disable resolution selection
+                            }
+                        });
+                        ui.add_space(10.0);
+
+                        // Resolution dropdown
+                        ui.horizontal(|ui| {
+                            ui.label("Resolution:");
+                            egui::ComboBox::new("resolution_combo", "")
+                                .selected_text(format!(
+                                    "{}x{}",
+                                    self.resolutions[self.pending_settings.selected_resolution].0,
+                                    self.resolutions[self.pending_settings.selected_resolution].1
+                                ))
+                                .show_ui(ui, |ui| {
+                                    for (i, &(width, height)) in self.resolutions.iter().enumerate() {
+                                        ui.selectable_value(
+                                            &mut self.pending_settings.selected_resolution,
+                                            i,
+                                            format!("{}x{}", width, height),
+                                        );
+                                    }
+                                });
+                        });
+                        ui.add_space(10.0);
+
+                        // Server port input field
+                        ui.horizontal(|ui| {
+                            ui.label("Local Server Port:");
+                            ui.add(egui::TextEdit::singleline(&mut self.pending_settings.server_port)
+                                .desired_width(100.0)
+                                .hint_text("8080"));
+                        });
+                        ui.add_space(30.0);
+
+                        // Apply and Cancel buttons
+                        ui.horizontal(|ui| {
+                            if ui.add_sized([140.0, 40.0], egui::Button::new("Apply")).clicked() {
+                                self.apply_settings(ctx);
+                                self.state = AppState::MainMenu;
+                            }
+                            
+                            if ui.add_sized([140.0, 40.0], egui::Button::new("Cancel")).clicked() {
+                                self.state = AppState::MainMenu;
+                            }
+                        });
+                    });
+                });
+            }
+
+            AppState::InGame => {
+                egui::TopBottomPanel::top("menu_bar").show(ctx, |ui| {
+                    ui.horizontal(|ui| {
+                        if ui.button("Main Menu").clicked() {
+                            self.state = AppState::MainMenu;
+                        }
+                        if ui.button("Settings").clicked() {
+                            self.enter_settings();
+                        }
+                        if ui.button("New Game").clicked() {
+                            *self = ChessApp::default();
+                            self.state = AppState::InGame;
+                        }
+                        ui.separator();
+                        ui.label(format!("Turn: {:?}", self.turn));
+                    });
+                });
+                
+                egui::CentralPanel::default().show(ctx, |ui| {
+                    ui.vertical_centered(|ui| {
+                        let full_avail = ui.available_rect_before_wrap();
+                        let board_tile = (full_avail.width().min(full_avail.height())) / 8.0;
+                        let board_size = board_tile * 8.0;
+                        
+                        // Create a child UI at the board position
+                        let (response, painter) = ui.allocate_painter(
+                            egui::Vec2::new(board_size, board_size),
+                            egui::Sense::click()
+                        );
+                        
+                        let board_rect = egui::Rect::from_center_size(
+                            full_avail.center(),
+                            egui::vec2(board_size, board_size)
+                        );
+                        
+                        // Draw the chess board
+                        let tile_size = board_size / 8.0;
+                        for row in 0..8 {
+                            for col in 0..8 {
+                                let color = if (row + col) % 2 == 0 {
+                                    egui::Color32::from_rgb(100, 97, 97)
+                                } else {
+                                    egui::Color32::from_rgb(217, 217, 217)
+                                };
+                                
+                                let rect = egui::Rect::from_min_size(
+                                    egui::Pos2::new(
+                                        board_rect.min.x + col as f32 * tile_size,
+                                        board_rect.min.y + row as f32 * tile_size
+                                    ),
+                                    egui::Vec2::new(tile_size, tile_size)
+                                );
+                                
+                                painter.rect_filled(rect, 0.0, color);
+                                
+                                // Draw piece
+                                let piece = self.board[row][col];
+                                if piece != Piece::Empty {
+                                    let symbol = piece.symbol();
+                                    let font_id = egui::FontId::proportional(tile_size * 0.75);
+                                    painter.text(
+                                        rect.center(),
+                                        egui::Align2::CENTER_CENTER,
+                                        symbol,
+                                        font_id,
+                                        if matches!(piece, Piece::King('w') | Piece::Queen('w') | Piece::Rook('w') | Piece::Bishop('w') | Piece::Knight('w') | Piece::Pawn('w')) {
+                                            egui::Color32::WHITE
+                                        } else {
+                                            egui::Color32::BLACK
+                                        }
+                                    );
+                                }
+                                
+                                // Draw selection highlight
+                                if self.selected == Some((row, col)) {
+                                    painter.rect_stroke(
+                                        rect, 
+                                        0.0, 
+                                        egui::Stroke::new(3.0, egui::Color32::RED),
+                                        egui::StrokeKind::Inside
+                                    );
+                                }
+                                
+                                // Handle clicks
+                                if ui.ctx().input(|i| i.pointer.primary_clicked()) {
+                                    let click_pos = ui.ctx().input(|i| i.pointer.interact_pos()).unwrap();
+                                    if rect.contains(click_pos) {
+                                        self.handle_click(row, col);
+                                    }
+                                }
+                            }
+                        }
+                    });
+                });
+            }
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[test]
+    fn test_initial_board_setup() {
+        let app = ChessApp::default();
+        assert!(matches!(app.board[0][0], Piece::Rook('b')));
+        assert!(matches!(app.board[7][0], Piece::Rook('w')));
+
+        assert!(matches!(app.board[1][0], Piece::Pawn('b')));
+        assert!(matches!(app.board[6][0], Piece::Pawn('w')));
+    }
+    
+    #[test]
+    fn test_piece_symbols() {
+        assert_eq!(Piece::King('w').symbol(), "♔");
+        assert_eq!(Piece::King('b').symbol(), "♚");
+        assert_eq!(Piece::Empty.symbol(), "");
+    }
+    
+    #[test]
+    fn test_piece_selection() {
+        let mut app = ChessApp::default();
+        app.handle_click(6, 0);
+        assert_eq!(app.selected, Some((6, 0)));
+        app.handle_click(6, 0);
+        assert_eq!(app.selected, None);
+    }
+    
+    #[test]
+    fn test_piece_movement() {
+        let mut app = ChessApp::default();
+        // Select and move a piece
+        app.handle_click(6, 0); // Select white pawn
+        app.handle_click(5, 0); // Move to empty square
+        assert_eq!(app.board[6][0], Piece::Empty);
+        assert!(matches!(app.board[5][0], Piece::Pawn('w')));
+    }
+
+    #[test]
+    fn test_turn_switching() {
+        let mut app = ChessApp::default();
+        assert_eq!(app.turn, Turn::White);
+        app.handle_click(6, 0); // White selects
+        app.handle_click(5, 0); // White moves
+        assert_eq!(app.turn, Turn::Black); // Should now be Black's turn
+    }
+    
+    #[test]
+    fn test_server_port_default() {
+        let app = ChessApp::default();
+        assert_eq!(app.server_port, "8080");
+    }
 }
Author	SHA1	Message	Date
Hatvani Tamás	0ace485bb6	Merge pull request #19 from htamas1210/Engine/movebuffer Engine/movebuffer	2025-11-19 20:14:45 +01:00
Hatvani Tamás	1c1b9a96d9	Import time module and add sleep in data upload Added time.sleep to control row insertion rate.	2025-11-19 17:34:44 +01:00
Hatvani Tamás	e99b2defa3	Merge pull request #18 from htamas1210/Engine/bitmove Engine/bitmove	2025-11-19 17:10:03 +01:00
Varga Dávid Lajos	f39c113ef9	implemented method append for struct MoveBuffer	2025-11-19 16:13:34 +01:00
Varga Dávid Lajos	f417a7e47c	implemented getter for field buffer i struct MoveBuffer	2025-11-19 16:09:31 +01:00
Varga Dávid Lajos	547b0e51cb	corrected annotation for method clear in struct MoveBuffer	2025-11-19 16:00:09 +01:00
Varga Dávid Lajos	5340744abe	implemented method clear for struct MoveBuffer	2025-11-19 15:56:57 +01:00
Varga Dávid Lajos	f64ebfa47f	implemented method get for struct MoveBuffer	2025-11-19 15:53:39 +01:00
Varga Dávid Lajos	4e7ac2a195	added getter for field count in struct MoveBuffer	2025-11-19 15:50:03 +01:00
Varga Dávid Lajos	dc176c103b	implemented method add for struct MoveBuffer	2025-11-19 15:40:11 +01:00
Varga Dávid Lajos	85a7fa37ef	added parameterless constructor for struct MoveBuffer	2025-11-19 15:22:15 +01:00
Varga Dávid Lajos	a60658763d	defined shape of struct MoveBuffer	2025-11-19 15:06:37 +01:00
Varga Dávid Lajos	b76a009e4e	added file and module structure for movebuffer.rs	2025-11-19 14:57:36 +01:00
Varga Dávid Lajos	db333a693f	added method uci_notation to struct BitMove	2025-11-18 17:38:48 +01:00
Varga Dávid Lajos	fd0d26486b	switched from public fields to getters for struct BitMove	2025-11-18 17:30:04 +01:00
Varga Dávid Lajos	e1f4ae717e	added constructor for castling moves in bitboard::bitmove.rs	2025-11-18 17:24:11 +01:00
Varga Dávid Lajos	7b9c1edbab	added constructor for capture moves in bitboard::bitmove.rs	2025-11-18 17:23:07 +01:00
Varga Dávid Lajos	05294a7736	changed name of value of enum BitMoveType to align with Rust naming conventions	2025-11-18 17:20:40 +01:00
Varga Dávid Lajos	d8da808580	added enum BitMoveType to bitboard::bitmove.rs for readability	2025-11-18 17:19:31 +01:00
Varga Dávid Lajos	c420d8b3dd	added constructor for quiet moves in bitboard::bitmove.rs	2025-11-18 17:17:11 +01:00
Varga Dávid Lajos	57af3aaae3	defined shape of struct bitboard::bitmove::BitMove	2025-11-18 17:09:39 +01:00
Varga Dávid Lajos	887b9abed8	adde file and module structure for bitboard::bitmove.rs	2025-11-18 17:02:07 +01:00
vargadavidlajos	a862d31c7d	Merge pull request #17 from htamas1210/Server/event Server/event	2025-11-18 16:58:29 +01:00
htom	48f66aac75	added engine as a crate into server project, implemented request moves event	2025-11-18 16:43:14 +01:00
Hatvani Tamás	431c65e075	Merge pull request #16 from htamas1210/Engine/check-test Engine/check test	2025-11-18 16:41:49 +01:00
Varga Dávid Lajos	7e64a7ca16	fixed incorrect test parameter in bitboard::legality::tests::check_test_test	2025-11-18 16:20:42 +01:00
Varga Dávid Lajos	6e0efc76f3	added missing method place_piece to struct bitboard::Board	2025-11-18 16:18:19 +01:00
Varga Dávid Lajos	1a9d7ad460	added tests for method bitboard::legality::check_test	2025-11-18 16:15:28 +01:00
htom	6dfe92f211	Merge branch 'master' into Server/event	2025-11-18 16:12:07 +01:00
Varga Dávid Lajos	9209f1c4e0	implemented method check_test in bitboard::checktest.rs	2025-11-18 12:14:22 +01:00
htom	4bb485e833	added findmatch event	2025-11-18 09:28:07 +01:00
Bence	3ebfc61ac7	Merge pull request #15 from htamas1210/Engine/library-functions Engine/library functions	2025-11-17 15:04:28 +01:00
Hatvani Tamás	d8d8b58ed7	Uploaded presentation for class	2025-11-17 12:24:42 +01:00
Varga Dávid Lajos	a8970053f9	added constructor for castling moves in chessmove.rs	2025-11-16 19:05:52 +01:00
vargadavidlajos	7cd77ab904	Merge pull request #14 from htamas1210/Docs/kovspec Added point 3 to kovspec.md	2025-11-16 19:05:07 +01:00
Varga Dávid Lajos	fa0a93172d	added constructore for captures in chessmove.rs	2025-11-16 19:01:53 +01:00
Varga Dávid Lajos	bb74a486d8	added constructor for quiet moves in chessmove.rs	2025-11-16 19:00:00 +01:00
vargadavidlajos	10c176a0f5	Added point 3 to kovspec.md	2025-11-16 18:39:48 +01:00
Varga Dávid Lajos	d1932762f9	removed field is_promotion from struct ChessMove and added an Option for field promotion_piece	2025-11-16 18:33:04 +01:00
Varga Dávid Lajos	9181b6c4ca	added all arguments constructor for struct BoardSquare	2025-11-16 13:51:10 +01:00
Varga Dávid Lajos	b703d8b9a1	added parameterless constructor for struct BoardSquare	2025-11-16 13:44:41 +01:00
Varga Dávid Lajos	acaa7d078a	added new library function: get_board_after_move	2025-11-15 20:40:58 +01:00
Varga Dávid Lajos	30448b5f3d	switched return type of is_game_over from bool to GameEnd	2025-11-15 20:37:06 +01:00
Varga Dávid Lajos	ff38c5c475	added struct GameEnd	2025-11-15 20:28:33 +01:00
Varga Dávid Lajos	42daeb9971	added file and module structure for gameend.rs	2025-11-15 20:15:17 +01:00
Bence	fc7ece9e94	Fixed app not starting in fullscreen	2025-11-15 20:09:26 +01:00
Varga Dávid Lajos	c8b6bc35d5	added library functions: get_available_moves and is_game_over	2025-11-15 20:08:54 +01:00
Varga Dávid Lajos	5f2a4e1721	added struct ChessMove	2025-11-15 19:57:11 +01:00
htom	c77e534ed8	removed event system file as it was unused and we do not neet it anymore	2025-11-15 19:41:48 +01:00
Varga Dávid Lajos	5c42b6e52a	added enum MoveType	2025-11-15 19:37:30 +01:00
Varga Dávid Lajos	f7364e7939	added file and module structure for movetype.rs	2025-11-15 19:35:17 +01:00
htom	1c92918692	finished join event	2025-11-15 19:33:40 +01:00
Varga Dávid Lajos	b4a1f0820f	added struct BoardSquare	2025-11-15 19:26:21 +01:00
Varga Dávid Lajos	6d9d5c49ae	added file and module structure for boardsquare.rs	2025-11-15 19:24:37 +01:00
Varga Dávid Lajos	1ca44b472b	added enum PieceType	2025-11-15 19:21:46 +01:00
Varga Dávid Lajos	79aabeac8c	added file and module structure for piecetype.rs	2025-11-15 19:17:50 +01:00
Varga Dávid Lajos	5eb85dab89	added file and module structure for file: chessmove.rs	2025-11-15 19:15:30 +01:00
Varga Dávid Lajos	291b7e71a2	added crate root file lib.rs for library crate	2025-11-15 19:14:08 +01:00
vargadavidlajos	2aaa2aca70	Merge pull request #13 from htamas1210/UI/SettingsAndGame Created a new branch due to a bug	2025-11-15 19:11:39 +01:00
Bence	456d386551	Created a new branch due to a bug Previous pull request didn't work (didnt change ui/src/main.rs), created new branch to see if the problem persists	2025-11-15 19:06:25 +01:00
htom	cca852d466	Working on event system, join implemented	2025-11-15 18:32:43 +01:00
Hatvani Tamás	e663d61b9e	Merge pull request #11 from htamas1210/Engine/pseudo-moves Engine/pseudo moves	2025-11-15 18:05:17 +01:00
htom	a098c8051a	planning done on how the event system works	2025-11-15 16:41:11 +01:00
Hatvani Tamás	c3ed181b07	Merge pull request #10 from htamas1210/Engine/legality-checks Engine/legality checks	2025-11-15 15:03:38 +01:00
Hatvani Tamás	5b3f2488d4	Merge pull request #9 from htamas1210/Engine/board-repr Engine/board repr	2025-11-15 14:53:07 +01:00
htom	e599722e45	added client for testing connection and events	2025-11-15 14:44:44 +01:00
Varga Dávid Lajos	659413ca31	implemented pseudo-move generation for queens	2025-11-15 13:47:46 +01:00
Varga Dávid Lajos	4de505bc21	implemented pseudo-move generation for rooks	2025-11-15 13:47:03 +01:00
Varga Dávid Lajos	7c58f0d508	implemented pseudo-move generation for bishops	2025-11-15 13:46:11 +01:00
Varga Dávid Lajos	c9246d1342	added helper function: get_raycast_from_square_in_direction	2025-11-15 13:45:01 +01:00
Varga Dávid Lajos	eab795b6df	implemented pseudo-move generation for pawn captures	2025-11-15 13:43:37 +01:00
Varga Dávid Lajos	f8ab14a026	implemented pseudo-move generation for kings	2025-11-15 13:42:41 +01:00
Varga Dávid Lajos	274897a070	implemented pseudo-move generation for knights	2025-11-15 13:41:40 +01:00
Varga Dávid Lajos	8ecbeb9c41	implemented pseudo-move generation for pawn moves	2025-11-15 13:40:40 +01:00
Varga Dávid Lajos	a1482d11f2	added file and module structure for bitboard::attacks.rs	2025-11-15 13:38:48 +01:00
Varga Dávid Lajos	f9a302c9a0	implemented method add_checker for CheckInfo in bitboard::checkinfo.rs	2025-11-15 12:40:52 +01:00
Varga Dávid Lajos	ad530e9155	added constructor for struct CheckInfo in bitboard::checkinfo.rs	2025-11-15 12:39:35 +01:00
Varga Dávid Lajos	182aa59ee1	defined shape of struct CheckInfo in bitboard::checkinfo.rs	2025-11-15 12:37:47 +01:00
Varga Dávid Lajos	296f1f6c3a	added file and module structure for checkinfo.rs	2025-11-15 12:36:11 +01:00
Varga Dávid Lajos	f7355f8e74	implemented use of calc_pinned_squares in board.rs	2025-11-15 12:33:18 +01:00
Varga Dávid Lajos	cd58a7a321	added methods for detecting pinned pieces	2025-11-15 12:30:01 +01:00
Varga Dávid Lajos	2beb8ab303	added file and module structure for bitboard::legality.rs	2025-11-15 10:31:02 +01:00
Varga Dávid Lajos	5425ccc5cd	added partial constructor for starting from a fen position	2025-11-15 10:26:31 +01:00
Varga Dávid Lajos	1104c8e6c5	added helper method for fen parsing to utils.rs	2025-11-15 10:21:00 +01:00
Varga Dávid Lajos	274ffcf5ec	added method to get the current square of a king	2025-11-15 10:14:37 +01:00
Varga Dávid Lajos	5854dbc20b	set each field to pub(in super) for later use	2025-11-15 10:12:52 +01:00
Varga Dávid Lajos	f36a196b2f	added getters for fields	2025-11-15 10:11:34 +01:00
Varga Dávid Lajos	11f26809df	used calc_occupancy and calc_piece_board methods in the initial state constructor	2025-11-15 10:07:23 +01:00
Varga Dávid Lajos	c88fbe68e3	added and used necessary methods the initial state constructor	2025-11-15 10:06:12 +01:00
Varga Dávid Lajos	7f4c53ddb7	added partial constructor for initial board state to board.rs	2025-11-15 10:03:24 +01:00
Varga Dávid Lajos	38b38845d6	added constructor for clear board to board.rs	2025-11-15 09:58:38 +01:00
Varga Dávid Lajos	66dd2877b2	defined board representation shape in board.rs	2025-11-15 09:56:17 +01:00
Varga Dávid Lajos	3cd53c7d70	added file and module structure for board representation	2025-11-15 09:51:07 +01:00
Bence	5b3bdc750f	Merge pull request #8 from htamas1210/Server/websocket Server/websocket	2025-11-13 19:12:00 +01:00
htom	83a73ed34c	Added tests	2025-11-13 15:19:26 +01:00
Hatvani Tamás	7c27d47935	Merge branch 'master' into Server/websocket	2025-11-12 19:31:55 +01:00
Hatvani Tamás	4ffec0f05d	Add name to checkout step in dispatcher.yml	2025-11-12 19:27:29 +01:00
Hatvani Tamás	da3b1c8c00	Add checkout action to dispatcher workflow	2025-11-12 19:13:14 +01:00
Hatvani Tamás	a497f8554f	Add checkout action to dispatcher workflow	2025-11-12 19:12:47 +01:00
htom	94b4d727a6	Merge branch 'master' into Server/websocket	2025-11-12 19:04:41 +01:00
htom	39273908ac	removed checkout to potentially fix an error with test_data.log	2025-11-12 18:58:36 +01:00
Hatvani Tamás	7be3c928b7	Display test_data.log in workflow script Added command to display contents of test_data.log	2025-11-12 18:54:06 +01:00
Hatvani Tamás	f8c14cc268	Enhance logging for data upload process Added print statements to log data being uploaded to each tab.	2025-11-12 18:50:01 +01:00
Hatvani Tamás	566d72c2d6	Merge pull request #7 from htamas1210/Workflow Workflow	2025-11-12 18:45:08 +01:00
htom	ad26d22281	indentation error in python script	2025-11-12 18:44:00 +01:00
htom	352b4e57d7	rewrote the python script the script now checks for project name on every line read from the log file and appends it to a list named by the project, if the branch is master then it appends all lines into one list, then it checks if there is any data in the list and uploads them to the correct tab that matches the project name or master	2025-11-12 18:42:17 +01:00
htom	5696128ac9	handling differenk kinds of server messages, and matchmaking basics	2025-11-12 17:11:23 +01:00
htom	c2e29415c9	added new event system to handle different client events in game and on connection	2025-11-12 15:54:03 +01:00
htom	ff68d9d2d9	new server messages	2025-11-12 15:52:55 +01:00
htom	281f496c83	removed these files, ready to start working on event system messages	2025-11-12 15:14:07 +01:00
htom	532c5a42ea	added anyhow and rand crate	2025-11-12 15:13:01 +01:00
htom	73624baf90	added server event enum	2025-11-12 14:01:13 +01:00
htom	d8861b66b2	using serde feature from uuid, so i can add an id to a struct definition	2025-11-12 13:25:40 +01:00
htom	4123a710cf	first phase of rewrite done, server stores connections with an id, currently works as a hub, next phase to handle custom message types	2025-11-12 12:49:42 +01:00
htom	4daa21e8bf	Started to rewrite the project to handle connection storing and message types, added v4 for uuid crate	2025-11-12 11:28:14 +01:00
htom	503cb23015	accepted connection and sending data both ways	2025-11-11 15:25:42 +01:00
htom	8ffbfdc63f	basic listener implemented, addedd modules, working on handling connections	2025-11-11 13:35:34 +01:00
htom	8f9a48fa96	rendszerterv v1	2025-11-11 12:40:29 +01:00