public void Collided(Collision collision, World world, Particles particles)
{
var go = collision.GameObject;
if (go is Rocket || go is PlasmaBullet)
{
for (int h = 0; h < 100; h++)
particles.Emit(ParticleManager.Explosion, (go.Position + Position) / 2f, Chaos.GetVector2InCircle(3f));
if (go is Rocket)
HP -= 7;
else
HP -= 3;
if (HP <= 0)
IsDestroyed = true;
}
if (go is Asteroid)
{
if (collision.Time > 0)
Response.Apply(this, collision);
for (int i = 0; i < collision.GameObject.Collisions.Count; i++)
if (collision.GameObject.Collisions[i].GameObject == this)
{
CollisionPool.Instance.PutObject(collision.GameObject.Collisions[i]);
collision.GameObject.Collisions[i] = null;
}
collision.GameObject.Collisions.RemoveAll(c => c == null);
}
}
public static void Apply(GameObject go, Collision collision)
{
var go1 = go;
var go2 = collision.GameObject;
if (collision.Time > 0)
{
go1.Position += go1.Speed * collision.Time;
go2.Position += go2.Speed * collision.Time;
}
// ось столкновения и нормаль к ней
var nrm = collision.Delta + go2.Speed * collision.Time - go1.Speed * collision.Time;
var tan = new Vector2(nrm.Y, -nrm.X);
nrm.Normalize();
tan.Normalize();
// проекция скорости на ось столкновения (нормальная скорость)
float go1nrm = Vector2.Dot(go1.Speed, nrm);
float go2nrm = Vector2.Dot(go2.Speed, nrm);
// перераспределяем импульс между нормальными скоростями в соответствии с массами
float go1rsp = ((go1.Mass - go2.Mass) * go1nrm + 2f * go2.Mass * go2nrm) / (go1.Mass + go2.Mass);
float go2rsp = ((go2.Mass - go1.Mass) * go2nrm + 2f * go1.Mass * go1nrm) / (go1.Mass + go2.Mass);
// проекция скорости на нормаль к оси столкновения (тангенциальная скорость)
float go1tan = Vector2.Dot(go1.Speed, tan);
float go2tan = Vector2.Dot(go2.Speed, tan);
go1.Speed = nrm * go1rsp + tan * go1tan;
go2.Speed = nrm * go2rsp + tan * go2tan;
if (collision.Time > 0)
{
go1.Position -= go1.Speed * collision.Time;
go2.Position -= go2.Speed * collision.Time;
}
//float gp = Maf.Sqrt(collision.DepthSquared);
//go1.Position -= gp * go2.Mass / (go1.Mass + go2.Mass) * nrm;
//go2.Position += gp * go1.Mass / (go1.Mass + go2.Mass) * nrm;
}
private void Collided(Collision col, World world, Particles particles)
{
if (col.GameObject is SpeedBonus)
{
_speedBonusTime = 1000;
}
if (col.GameObject is Medkit)
HP = MaxHP;
if (col.GameObject is PlasmaBullet)
HP -= 3;
if (col.GameObject is Rocket)
HP -= 7;
if (HP <= 0)
{
var t = this.GetType();
Game.WinShip(t);
for (int i = 0; i < _world.Count; i++)
{
var ship = _world[i] as Ship;
if (ship != null && ship.HP < 0)
{
ship.HP = ship.MaxHP;
ship.Position = Chaos.GetVector2InRectangle(Game.WorldWidth, Game.WorldHeight);
}
}
}
}
private void Collided(Collision col, World world, Particles particles)
{
if (col.GameObject is Ship)
IsDestroyed = true;
}