/// <summary>
/// Allows the game to perform any initialization it needs to before starting to run.
/// This is where it can query for any required services and load any non-graphic
/// related content. Calling base.Initialize will enumerate through any components
/// and initialize them as well.
/// </summary>
protected override void Initialize()
{
// TODO: Add your initialization logic here
screenWidth = GraphicsDevice.Viewport.Width;
screenHeight = GraphicsDevice.Viewport.Height;
player = new Player();
gameObjects.Add(player);
base.Initialize();
}
public void CheckForCollisions(MyGameObject o)
{
foreach (MyGameObject other in gameObjects)
{
if (o is Bullet && CheckForBulletCollisions(o, other))
break;
else if( o is Enemy && CheckForEnemyCollisions(o, other))
break;
}
}
public void CheckForCollisions(MyGameObject o)
{
foreach (MyGameObject other in gameObjects)
{
if (o is Bullet && CheckForBulletCollisions(o, other))
{
break;
}
else if (o is Enemy && CheckForEnemyCollisions(o, other))
{
break;
}
}
}
/// <summary>
/// Check if the bullet is out of the screen or if it hit an enemy
/// </summary>
/// <param name="bullet"></param>
/// <param name="other"></param>
/// <returns></returns>
public bool CheckForBulletCollisions(MyGameObject bullet, MyGameObject other)
{
// remove bullet if it is out of screen
if (bullet.Position.Y + bullet.Texture.Height <= 0)
{
bullet.IsNonExisting = true;
return true;
}
// remove bullet if it hits an enemy
if (other is Enemy && bullet.BoundingBox.Intersects(other.BoundingBox))
{
bullet.IsNonExisting = true;
((Enemy)other).Decend();
return true;
}
return false;
}
/// <summary>
/// Check if the player can eat an enemy
/// </summary>
/// <param name="player"></param>
/// <param name="enemy"></param>
/// <returns></returns>
public bool CheckForEnemyCollisions(MyGameObject enemy, MyGameObject player)
{
// check if enemy is out of the screen
if (enemy.Position.X + enemy.Texture.Width * 3 < 0 || enemy.Position.X >= screenWidth * 2)
{
enemy.IsNonExisting = true;
return(true);
}
// check if enemy hits the player
if (player is Player && player.BoundingBox.Intersects(enemy.BoundingBox))
{
increaseScore(((Enemy)enemy).Type);
enemy.IsNonExisting = true;
return(true);
}
return(false);
}
/// <summary>
/// Check if the bullet is out of the screen or if it hit an enemy
/// </summary>
/// <param name="bullet"></param>
/// <param name="other"></param>
/// <returns></returns>
public bool CheckForBulletCollisions(MyGameObject bullet, MyGameObject other)
{
// remove bullet if it is out of screen
if (bullet.Position.Y + bullet.Texture.Height <= 0)
{
bullet.IsNonExisting = true;
return(true);
}
// remove bullet if it hits an enemy
if (other is Enemy && bullet.BoundingBox.Intersects(other.BoundingBox))
{
bullet.IsNonExisting = true;
((Enemy)other).Decend();
return(true);
}
return(false);
}
/// <summary>
/// Check if the player can eat an enemy
/// </summary>
/// <param name="player"></param>
/// <param name="enemy"></param>
/// <returns></returns>
public bool CheckForEnemyCollisions(MyGameObject enemy, MyGameObject player)
{
// check if enemy is out of the screen
if (enemy.Position.X + enemy.Texture.Width*3 < 0 || enemy.Position.X >=screenWidth*2)
{
enemy.IsNonExisting = true;
return true;
}
// check if enemy hits the player
if (player is Player && player.BoundingBox.Intersects(enemy.BoundingBox))
{
increaseScore(((Enemy)enemy).Type);
enemy.IsNonExisting = true;
return true;
}
return false;
}
/// <summary>
/// Allows the game to perform any initialization it needs to before starting to run.
/// This is where it can query for any required services and load any non-graphic
/// related content. Calling base.Initialize will enumerate through any components
/// and initialize them as well.
/// </summary>
protected override void Initialize()
{
// TODO: Add your initialization logic here
screenWidth = GraphicsDevice.Viewport.Width;
screenHeight = GraphicsDevice.Viewport.Height;
player = new Player();
gameObjects.Add(player);
base.Initialize();
}
