Implement snake collision

src/game/game.js

@@ -76,6 +76,10 @@ function checkCollisions(newY, newX, gameBoard) {
     console.log(`Player has eaten the food!`);
     return COLLISIONTYPES.FOOD;
   }
+  if (gameBoard[newY][newX].type === cellTypes.PLAYERHEAD) {
+    console.log(`Player has collided with another player!`);
+    return COLLISIONTYPES.SNAKE;
+  }
   //Handle collision with banana
   if (gameBoard[newY][newX].type == cellTypes.BANANA) {
     console.log("Slip");
@@ -179,6 +183,23 @@ module.exports = {
           ) {
             updatedBoard = addFood(updatedBoard);
           }
+          if (collision === COLLISIONTYPES.SNAKE) {
+            updatedBoard = updatedBoard.map((row) =>
+              row.map((c) =>
+                c.pid === cell.pid ? createCell(c.x, c.y, cellTypes.EMPTY) : c,
+              ),
+            );
+            deadPlayers.push(cell.pid);
+            updatedBoard = updatedBoard.map((row) =>
+              row.map((c) =>
+                c.pid === gameBoard[newY][newX].pid
+                  ? createCell(c.x, c.y, cellTypes.EMPTY)
+                  : c,
+              ),
+            );
+            deadPlayers.push(gameBoard[newY][newX].pid);
+            continue;
+          }
           if (collision > COLLISIONTYPES.FOOD) {
             updatedBoard = updatedBoard.map((row) =>
               row.map((c) =>