added backend logic to check every move for game status. when white wins, black wins, draw, stalemate, etc. currently shows update on bottom of screen, but will add big win/lose/draw UI in the future

Author: Cody616

app/src/main/java/com/example/chaiss/PlayActivity.java

@@ -89,6 +89,16 @@ private void handleTouch(float x, float y) {
             try {
                 PyObject result = chessLogic.callAttr("make_move", currentFEN, move);
                 currentFEN = result.toString();
+
+                // Check for game result (win loss or draw
+                PyObject gameResult = chessLogic.callAttr("check_game_result", currentFEN);
+                String resultMessage = gameResult.toString();
+
+                // Display the results
+                if (!resultMessage.equals("Game still ongoing")) {
+                    Toast.makeText(this, resultMessage, Toast.LENGTH_LONG).show();
+                }
+
                 selectedSquare = null;
                 this.legalMoves = null;
                 updateBoard();

app/src/main/python/chess_logic.py

@@ -43,3 +43,19 @@ def render_board(fen, selected_square=None, legal_moves=None):
 
     svg_data = chess.svg.board(board, squares=squares_to_highlight)
     return svg_data
+
+def check_game_result(fen):
+    board = chess.Board(fen)
+    if board.is_checkmate():
+        if board.turn == chess.WHITE:
+            return "Black wins!"
+        else:
+            return "White wins!"
+    elif board.is_stalemate():
+        return "Stalemate!"
+    elif board.is_insufficient_material():
+        return "Draw (Insufficient Material)!"
+    elif board.is_game_over():
+        return "Game Over!"
+    else:
+        return "Game still in progress"