/// <summary>
/// Executes when a collison occurs with another GameObject
/// </summary>
/// <param name="collisonName"></param>
/// <param name="other"></param>
/// <returns>
/// <c>true</c> if the object is to be deleted
/// </returns>
public override bool OnCollide(CollisionPairEvaluator.Name collisonName, GameObject other)
{
bool willBeDeleted = false;
// Wall vs UFO
if (collisonName == CollisionPairEvaluator.Name.Wall_vs_UFO)
{
// Destroy self...
// But only if the UFO is moving right toward the right wall
bool approachingRightWall = this.speed > 0.0f && this.X < other.X;
// Or if the UFO is moving left toward the left wall
bool approachingLeftWall = this.speed <0.0f && this.X> other.X;
if (approachingLeftWall || approachingRightWall)
{
willBeDeleted = true;
}
}
// PlayerLaser vs UFO
else if (collisonName == CollisionPairEvaluator.Name.PlayerLaser_vs_UFO)
{
willBeDeleted = true;
// Play the death sound
this.sndDeath.Play();
// Create small explosion
DeadPlayerLaser smallExplosion = new DeadPlayerLaser(this.X, this.Y, 1.0f);
}
return(willBeDeleted);
}
/// <summary>
/// Executes when a collison occurs with another GameObject
/// </summary>
/// <param name="collisonName"></param>
/// <param name="other"></param>
/// <returns>
/// <c>true</c> if the object is to be deleted
/// </returns>
public override bool OnCollide(CollisionPairEvaluator.Name collisonName, GameObject other)
{
bool willBeDeleted = false;
// PlayerLaser vs AlienLaser
if (collisonName == CollisionPairEvaluator.Name.PlayerLaser_vs_AlienLaser)
{
willBeDeleted = true;
}
// Player vs AlienLaser
else if (collisonName == CollisionPairEvaluator.Name.Player_vs_AlienLaser)
{
willBeDeleted = true;
// Create small explosion
DeadPlayerLaser smallExplosion = new DeadPlayerLaser(this.X, this.Y);
smallExplosion.SetColor(Colors.Green);
// Move up. This is important!
// Removing this line will make the Aliens rain laser everywhere!
GameObject parent = this.Parent as GameObject;
parent.SetPosition(parent.X, parent.Y + this.Height);
}
// AlienLaser vs Shields
else if (collisonName == CollisionPairEvaluator.Name.AlienLaser_vs_Shield)
{
willBeDeleted = true;
// Create small explosion
DeadPlayerLaser smallExplosion = new DeadPlayerLaser(this.X, this.Y);
smallExplosion.SetColor(Colors.Green);
}
// AlienLaser vs WallBottom
else if (collisonName == CollisionPairEvaluator.Name.AlienLaser_vs_WallBottom)
{
willBeDeleted = true;
// Create small explosion
DeadPlayerLaser smallExplosion = new DeadPlayerLaser(this.X, this.Y);
smallExplosion.SetColor(Colors.Green);
}
return(willBeDeleted);
}
/// <summary>
/// Executes when a collison occurs with another GameObject
/// </summary>
/// <param name="collisonName"></param>
/// <param name="other"></param>
/// <returns>
/// <c>true</c> if the object is to be deleted
/// </returns>
public override bool OnCollide(CollisionPairEvaluator.Name collisonName, GameObject other)
{
bool willBeDeleted = false;
// Laser vs. Aliens
if (collisonName == CollisionPairEvaluator.Name.PlayerLaser_vs_Alien)
{
willBeDeleted = true;
}
// Laser vs. Top Wall
else if (collisonName == CollisionPairEvaluator.Name.PlayerLaser_vs_WallTop)
{
willBeDeleted = true;
// Create small explosion
DeadPlayerLaser smallExplosion = new DeadPlayerLaser(this.X, this.Y);
}
// Laser vs Shield
else if (collisonName == CollisionPairEvaluator.Name.PlayerLaser_vs_Shield)
{
willBeDeleted = true;
// Create small explosion
DeadPlayerLaser smallExplosion = new DeadPlayerLaser(this.X, this.Y);
smallExplosion.SetColor(Colors.Green);
}
// Laser vs. UFO
else if (collisonName == CollisionPairEvaluator.Name.PlayerLaser_vs_UFO)
{
willBeDeleted = true;
}
// PlayerLaser vs AlienLaser
else if (collisonName == CollisionPairEvaluator.Name.PlayerLaser_vs_AlienLaser)
{
willBeDeleted = true;
// Create small explosion
DeadPlayerLaser smallExplosion = new DeadPlayerLaser(this.X, this.Y);
smallExplosion.SetColor(Colors.White);
}
return(willBeDeleted);
}