/// <summary>
/// Update the enemy projectiles.
/// </summary>
/// <param name="gt"></param>
private void UpdateProjectiles(GameTime gt)
{
if (Waves != null)
{
int i = 0;
while (i < Waves[currentWaveNo].Count && Waves[currentWaveNo].Count > 0)
{
Waves[currentWaveNo][i].Update(gt);
if (Waves[currentWaveNo][i].ToBeDeleted())
{
Waves[currentWaveNo].RemoveAt(i);
i--;
}
else
{
// Check for collision.
bool Collided = false;
if (Waves[currentWaveNo][i].CollisionSpheres != null)
{
foreach (BoundingSphere b in Waves[currentWaveNo][i].CollisionSpheres)
{
if (b.Intersects(Player.CollisionSphere))
{
Collided = true;
break;
}
}
}
if (Waves[currentWaveNo][i].CollisionBoxes != null)
{
foreach (BoundingBox b in Waves[currentWaveNo][i].CollisionBoxes)
{
if (b.Intersects(Player.CollisionSphere))
{
Collided = true;
break;
}
}
}
if (Collided)
{
// If the projectile has the power of > 0, then it will be removed after crashing against the player. (Attack)
// If the projectile has the power = 0, then it will not be removed after crashing against the player.
// If the projectile has the power of < 0, then it will be rmoved after crashing against the player. (Heal)
if (Waves[currentWaveNo][i].Power > 0)
{
if (!Recovering)
{
// This means the player is hit!
this.Player.HP -= Waves[currentWaveNo][i].Power;
Effects.Add(new PlayerExplosion(Waves[currentWaveNo][i].Position, 2f));
PersistentContent.GetSFX("PlayerHit").Play();
Recovering = true;
i--;
}
}
else if (Waves[currentWaveNo][i].Power < 0)
{
// This means the player receives a powerup.
// There is no powerup in this game; however!
this.Player.HP -= Waves[currentWaveNo][i].Power;
if (this.Player.HP > this.Player.MaxHP)
{
this.Player.HP = this.Player.MaxHP;
}
Waves[currentWaveNo].RemoveAt(i);
i--;
}
}
}
i++;
}
}
}
private void UpdatePlayer(KeyboardState ks, GameTime gt)
{
if (Player.HP < 0)
{
Main.ChangeCurrentState(new GameOver("The HP has reached 0. A big no-no for a shooter game."));
}
else
{
Player.PlayerUpdate(ks);
if (Recovering)
{
RecoveryCounter++;
if (RecoveryCounter > RecoveryTime)
{
RecoveryCounter = 0;
Recovering = false;
}
}
int i = 0;
// Update player's bullet.
while (i < PlayerProjectiles.Count)
{
int j = 0;
PlayerProjectiles[i].Update(gt);
if (Waves != null)
{
while (j < Waves[currentWaveNo].Count)
{
// The player's bullet has hit the enemy.
if (PlayerProjectiles[i].CollidedWithEnemy(Waves[currentWaveNo][j]))
{
Waves[currentWaveNo][j].HP -= PlayerProjectiles[i].Power;
PlayerProjectiles[i].HP = 0;
PersistentContent.GetSFX("EnemyHit").Play();
}
j++;
}
}
i++;
}
i = 0;
// Delete marked player's bullet.
while (i < PlayerProjectiles.Count)
{
if (PlayerProjectiles[i].ToBeDeleted() || PlayerProjectiles[i].HP <= 0)
{
PlayerProjectiles.RemoveAt(i);
i--;
}
i++;
}
// Delete enemies.
if (Waves != null)
{
i = 0;
while (i < Waves[currentWaveNo].Count)
{
if (Waves[currentWaveNo][i].ToBeDeleted())
{
Waves[currentWaveNo].RemoveAt(i);
i--;
}
else if (Waves[currentWaveNo][i].HP <= 0)
{
Effects.Add(new Explosion(Waves[currentWaveNo][i].Position, 2));
PersistentContent.GetSFX("EnemyDead").Play();
Waves[currentWaveNo].RemoveAt(i);
i--;
}
i++;
}
}
}
}