XNA 4.0 Game Development by Example Beginner's Guide

Time for action – player shot collisions

1. Add the checkShotToEnemy() method to the CollisionManager class:

   private void checkShotToEnemyCollisions()
   {
       foreach (Sprite shot in playerManager.PlayerShotManager.Shots)
       {
           foreach (Enemy enemy in enemyManager.Enemies)
           {
               if (shot.IsCircleColliding(
                   enemy.EnemySprite.Center,
                   enemy.EnemySprite.CollisionRadius))
               {
                   shot.Location = offScreen;
                   enemy.Destroyed = true;
                   playerManager.PlayerScore += enemyPointValue;
                   explosionManager.AddExplosion(
                       enemy.EnemySprite.Center,
                       enemy.EnemySprite.Velocity/10);
               }
   
           }
       }
   }

2. Add the checkShotToAsteroid() method to the CollisionManager class:

   private void checkShotToAsteroidCollisions() { foreach (Sprite shot in playerManager.PlayerShotManager.Shots) { foreach (Sprite asteroid in ...