can't upgrade nonexistent tower

Ian Gonzalez Hermosillo · Ian Gonzalez Hermosillo · commit 29d31b964f33 · 2025-01-02T20:53:42.000-05:00
diff --git a/engine/src/main/battlecode/world/RobotControllerImpl.java b/engine/src/main/battlecode/world/RobotControllerImpl.java
@@ -610,6 +610,9 @@ private void assertCanUpgradeTower(MapLocation loc) throws GameActionException{
         assertCanActLocation(loc, GameConstants.BUILD_TOWER_RADIUS_SQUARED);
         InternalRobot robot = this.gameWorld.getRobot(loc);
 
+        if (robot == null){
+            throw new GameActionException(CANT_DO_THAT, "There is no robot at the location");
+        }
         if (!this.robot.getType().isTowerType()){ 
             throw new GameActionException(CANT_DO_THAT, "No tower at the location");
         }

Original file line number	Diff line number	Diff line change
`@@ -610,6 +610,9 @@ private void assertCanUpgradeTower(MapLocation loc) throws GameActionException{`
`610`	`610`	`assertCanActLocation(loc, GameConstants.BUILD_TOWER_RADIUS_SQUARED);`
`611`	`611`	`InternalRobot robot = this.gameWorld.getRobot(loc);`
`612`	`612`
	`613`	`+ if (robot == null){`
	`614`	`+ throw new GameActionException(CANT_DO_THAT, "There is no robot at the location");`
	`615`	`+ }`
`613`	`616`	`if (!this.robot.getType().isTowerType()){`
`614`	`617`	`throw new GameActionException(CANT_DO_THAT, "No tower at the location");`
`615`	`618`	`}`