} //end method
#region Entity & Collision Handling (enemies, bullets, etc)
/// <summary>
/// simple method that calls Update() on each bullet in the bullet lists
/// </summary>
private void HandleBullets()
{
for (int i = 0; i < playerBullets.Count; i++)
{
playerBullets[i].Update();
if (OffScreen.Check((int)screen.Y, (int)screen.X, playerBullets[i].BoundingBox) || playerBullets[i].FlaggedForRemoval == true)
{
playerBullets.RemoveAt(i);
i--;//dont want to skip anyhting in the list
}
}
for (int i = 0; i < enemyBullets.Count; i++)
{
//if (enemyBullets[i] != null) --> no longer using array (see top of class)
//{
enemyBullets[i].Update();
if (OffScreen.Check((int)screen.Y, (int)screen.X, enemyBullets[i].BoundingBox) || enemyBullets[i].FlaggedForRemoval == true)
{
enemyBullets.RemoveAt(i);
i--;//dont want to skip anything in the list!
// }
}//end null check
}
//TODO: handle other bullet types
//TODO: include offscreen check
}
/// <summary>
/// Calls or handles all the updating and spawning for all enemies in the game
/// </summary>
private void HandleEnemies(TimeSpan time)
{
//////////////////////////////////////
//TODO: add game state conditionals//
/////////////////////////////////////
Random aGen = new Random();
if (aGen.Next(0, 101) % 35 == 0)
{
enemies.Add(new HomingEnemy(aGen.Next(30, (int)screen.X), -50, 3, "homingEnemy", (float)selectedDifficulty, playerOne.Centre));
enemies.Add(new Enemy(aGen.Next(30, (int)screen.X), -50, 2, "enemy", (float)selectedDifficulty));
if (aGen.Next() % 2 == 0)
{
enemies.Add(new DiagonalEnemy(-50, aGen.Next(30, 401), 2, "enemy2", (float)selectedDifficulty));
enemies.Add(new HorizontalEnemy((int)screen.X, aGen.Next(0, (int)screen.Y - 50), 2, "enemyh", (float)selectedDifficulty));
}
else
{
enemies.Add(new DiagonalEnemy((int)screen.X, aGen.Next(30, 401), 2, "enemy2", (float)selectedDifficulty));
enemies.Add(new HorizontalEnemy(-50, aGen.Next(0, (int)screen.Y - 50), 2, "enemyh", (float)selectedDifficulty));
}
if (playerOne.Score % 250 == 5)
{
enemies.Add(new Boss(aGen.Next(10, 331), -100, 4, "boss", (float)selectedDifficulty));
}
}
for (int i = 0; i < enemies.Count; i++)
{
if (enemies[i].IsBoss) //try
{ //only works for boss, else will throw NotImplementedException, which will be caught and enemy will update normally
enemies[i].Update(ref enemyBullets, playerOne.Centre); //tell enemy to update
}
else //enemy is normal //catch //(NotImplementedException ex)
{
enemies[i].Update();
}
//remove the enemy if is is dead or if it is off the screen and it's allowance is up
if (enemies[i].Health <= 0 || (OffScreen.Check((int)screen.Y, (int)screen.X, enemies[i].BoundingBox) == true && enemies[i].OffScreenAllowance <= 0))
{
if (enemies[i].Health <= 0)
{ //if player killed the enemy, then add particle effects
Vector2 origin = new Vector2(enemies[i].Location.X + enemies[i].CollisionMask.Bounds.Center.X, enemies[i].Location.Y + enemies[i].CollisionMask.Bounds.Center.Y);
Explosion newExplosion = new Explosion(origin, enemies[i].ExplosionSize, 5, 3, time);
particleEffectsList.Add(newExplosion);
playerOne.EnemiesKilled++;
}
enemies.RemoveAt(i);
i--;//we dont want to skip anything in the list
}
}//end for
}//end HandleEnemies()
public void Update()
{
Random aGen = new Random();
for (int i = 0; i < particleArray.Length; i++)
{
particleArray[i].CurrentPosition += particleArray[i].Direction;
if (rotateStars == true)
{
float originalRotation = particleArray[i].Rotation;
particleArray[i].Rotation = originalRotation + 0.01f;
}
//if the particle is off the screen, return it to the top
if (OffScreen.Check(screenBounds.Height, screenBounds.Width, particleArray[i].CurrentPosition, particleArray[i].Texture.Width, particleArray[i].Texture.Height))
{
particleArray[i].CurrentPosition = new Vector2(aGen.Next(0, screenBounds.Width), 0);
} //end if
} //end for
} //end Update()