/**
* Handle collisions of the player with a Koopa's shell. This
* causes the shell to move fast from side to side or stop its
* movement if it was already moving.
*/
private void OnShieldCollision(Collision2D collision)
{
KoopaController koopa = GetComponent <KoopaController>();
ContactPoint2D contact = collision.GetContact(0);
if (!koopa.wasPropeled)
{
AudioService.PlayOneShot(gameObject, "Shell Collide");
koopa.StartPropulsion(15.0f * contact.normal.x);
}
else if (koopa.wasPropeled && contact.normal.y < 0.5f)
{
AudioService.PlayOneShot(gameObject, "Shell Collide");
koopa.StopPropulsion();
}
}
/**
* Handle the collision of Koopas with other objects.
*/
protected override void OnCollisionEnter2D(Collision2D collision)
{
KoopaController monster = GetComponent <KoopaController>();
// If the monster shell is not active, handle the collision
// like any other monster
if (!monster.shellActive)
{
base.OnCollisionEnter2D(collision);
return;
}
// If the shell collides with a monster, damage the other monster
if (collision.collider.CompareTag("Monster"))
{
ActorController actor = GetColliderActor(collision.collider);
RewardColliderPlayer(collision.collider);
EmitEarnedPoints(earnedPoints, collision.GetContact(0).point);
actor.Damage();
return;
}
// If the collision happened with a player, either kill the
// player or add remove the shell propulsion force.
PlayerController player = GetColliderPlayer(collision.collider);
if (player != null && player.isAlive && monster.isAlive)
{
if (monster.wasPropeled && IsDeadlyForPlayer(collision))
{
player.Damage();
}
else
{
player.BounceUp();
OnShieldCollision(collision);
}
}
}
