added the collision function player vs Ghosts

src/main/java/pacmanGame/GhostBehaviorRandom.java

@@ -1,7 +1,9 @@
 package pacmanGame;
 import java.util.Random;
 public class GhostBehaviorRandom implements GhostBehavior {
-
+public int player;
+public int ghost;
+public boolean isPlayerAlive = true;
 	@Override
 	public Vector2 GetDirection(Ghost ghost) {
 		Random random = new Random();
@@ -20,5 +22,9 @@ public class GhostBehaviorRandom implements GhostBehavior {
 		}
 		return null;
 	}
-	
+	public void checkCollision() {
+		if (player == ghost) {
+			isPlayerAlive = false;
+		}
+	}
 }