Update game.js for collision & growing features

src/game/game.js

@@ -117,26 +117,44 @@ module.exports = {
             newX -= 1;
           }
 
-          //Continue if within bounds
+          // Check for collisions with walls
           if (
-            newX >= 0 &&
-            newX < gameBoard[0].length &&
-            newY >= 0 &&
-            newY < gameBoard.length
+            newX < 0 ||
+            newX >= gameBoard[0].length ||
+            newY < 0 ||
+            newY >= gameBoard.length
           ) {
+            console.log(`Player ${cell.pid} has collided with the wall!`);
+            // Remove the player from the game (indicating death)
+            return gameBoard.map(row =>
+              row.map(c => (c.pid === cell.pid ? createCell(c.x, c.y, cellTypes.EMPTY) : c))
+            );
+          }
+
+          // Handle collision with food
+          if (gameBoard[newY][newX].type === cellTypes.FOOD) {
+            console.log(`Player ${cell.pid} has eaten the food!`);
+            // Add new body segment at the current head's position
+            let newBodySegment = createCell(oldX, oldY, cellTypes.PLAYERBODY);
+            newBodySegment.pid = cell.pid;
+            newBodySegment.next = cell.next;
+            cell.next = newBodySegment;
+            // Place new food somewhere else
+            gameBoard = addFood(gameBoard);
+          }
+
           // Snake head to new position by updating cell object
           let newHeadCell = createCell(newX, newY, cellTypes.PLAYERHEAD);
           newHeadCell.pid = cell.pid;
-            gameBoard[newY][newX] = newHeadCell;
-			
           newHeadCell.direction = tempVar;
+          newHeadCell.next = cell.next;
           gameBoard[newY][newX] = newHeadCell;
 
           // Remove previous head position
           gameBoard[oldY][oldX] = createCell(oldX, oldY, cellTypes.EMPTY);
 
-            //Snake body to previous locations
-            let currentBody = gameBoard[newY][newX].next;
+          // Move the body segments
+          let currentBody = newHeadCell.next;
           while (currentBody) {
             let bodyOldX = currentBody.x;
             let bodyOldY = currentBody.y;
@@ -153,15 +171,16 @@ module.exports = {
             currentBody = currentBody.next;
           }
 
-            //Remove previous body position
+          // Remove previous body position if it's no longer part of the snake
+          if (oldX !== newHeadCell.x || oldY !== newHeadCell.y) {
             gameBoard[oldY][oldX] = createCell(oldX, oldY, cellTypes.EMPTY);
+          }
 
           console.log(gameBoard);
           return gameBoard;
         }
       }
     }
-    }
     return gameBoard;
   },