added destroyCherry function to GameManager

src/main/java/pacmanGame/GameManager.java

@@ -31,12 +31,19 @@ public class GameManager {
 		if(time == 300) {
 			spawnCherry();
 		}
+		if (time == 600) {
+			destroyCherry();
+		}
 		time++;
 	}
 	
 	public void spawnCherry() {
 		map.GetCell(map.playerSpawn).type = "cherry";
 	}
+	
+	public void destroyCherry() {
+		map.GetCell(map.playerSpawn).type = "empty";
+	}
 
 	public void ProcessInput(char inputChar) {
 		if(inputChar == 27) {