public static void ExplosionDamage(Vector2 at, float radius, float damage, Predicate <RigidBody> affectsObject)
{
// Iterate over all RigidBodies with a line-of-sight to the explosion center and damage them
IterateLineOfSightBodies(at, radius, affectsObject, (body, hitData) =>
{
Ship ship = body.GameObj.GetComponent <Ship>();
if (ship == null)
{
return;
}
float distanceFactor = MathF.Pow(1.0f - hitData.Fraction, 1.5f);
ship.DoDamage(distanceFactor * damage);
});
}
void ICmpCollisionListener.OnCollisionBegin(Component sender, CollisionEventArgs args)
{
RigidBodyCollisionEventArgs bodyArgs = args as RigidBodyCollisionEventArgs;
if (bodyArgs == null)
{
return;
}
if (bodyArgs.OtherShape.IsSensor)
{
return;
}
// Did we collide with a ship? If it's the same that fired the bullet, ignore this
Ship otherShip = args.CollideWith.GetComponent <Ship>();
if (otherShip != null && otherShip.Owner == this.owner)
{
return;
}
// Get all the objet references we'll need
RigidBody otherBody = args.CollideWith.RigidBody;
Transform transform = this.GameObj.Transform;
RigidBody body = this.GameObj.RigidBody;
BulletBlueprint blueprint = this.blueprint.Res;
// Okay, let's determine where *exactly* our bullet hit
RayCastData firstHit;
bool hitAnything = RigidBody.RayCast(transform.Pos.Xy - body.LinearVelocity * 2, transform.Pos.Xy + body.LinearVelocity * 2, data =>
{
if (data.Shape.IsSensor)
{
return(-1.0f);
}
return(data.Fraction);
}, out firstHit);
Vector3 hitPos;
float hitAngle;
if (hitAnything)
{
hitPos = new Vector3(firstHit.Pos, 0.0f);
hitAngle = (-firstHit.Normal).Angle;
}
else
{
// Note that it is possible for the raycast to not hit anything,
// because it is essentially a line, while our bullet is wider than zero.
hitPos = transform.Pos;
hitAngle = transform.Angle;
}
// Push around whatever we've just hit and do damage, if it was a ship
otherBody.ApplyWorldImpulse(body.LinearVelocity * MathF.Min(otherBody.Mass, blueprint.ImpactMass), transform.Pos.Xy);
if (otherShip != null)
{
otherShip.DoDamage(blueprint.Damage);
}
// If we hit a part of the world, spawn the world hit effect
if (otherShip == null && blueprint.HitWorldEffect != null)
{
GameObject effectObj = blueprint.HitWorldEffect.Res.Instantiate(hitPos, hitAngle);
Scene.Current.AddObject(effectObj);
}
// Also spawn a generic hit effect in the color of the bullet
if (blueprint.HitEffect != null)
{
GameObject effectObj = blueprint.HitEffect.Res.Instantiate(hitPos, hitAngle);
ParticleEffect effect = effectObj.GetComponent <ParticleEffect>();
if (effect != null && this.owner != null)
{
ColorHsva color = this.owner.Color.ToHsva();
foreach (ParticleEmitter emitter in effect.Emitters)
{
emitter.MaxColor = emitter.MaxColor.WithSaturation(color.S).WithHue(color.H);
emitter.MinColor = emitter.MinColor.WithSaturation(color.S).WithHue(color.H);
}
}
Scene.Current.AddObject(effectObj);
}
// Play hit sounds
if (blueprint.HitSound != null)
{
SoundInstance inst = DualityApp.Sound.PlaySound3D(blueprint.HitSound, hitPos);
inst.Pitch = MathF.Rnd.NextFloat(0.95f, 1.05f);
}
HitSoundController otherHitSound = otherBody.GameObj.GetComponent <HitSoundController>();
if (otherHitSound != null)
{
otherHitSound.NotifyHit(MathF.Rnd.NextFloat(0.75f, 1.0f));
}
// Delete the bullet
this.GameObj.DisposeLater();
}