public void OnCollisionEnded(CollisionEventArgs e)
{
if (CollisionEnded != null)
{
CollisionEnded(this, e);
}
}
/// <summary>
/// Allows the game component to update itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
public override void Update(GameTime gameTime)
{
// performance
if (m_mainTimer != null)
m_mainTimer.Watch.Restart();
if (m_findTimer != null)
m_findTimer.Watch.Reset();
if (m_resolveTimer != null)
m_resolveTimer.Watch.Reset();
ISceneManager sceneManager = Game.Services.GetService(typeof(ISceneManager)) as ISceneManager;
if (sceneManager == null)
{
return;
}
foreach (CollisionDetectionElement e in m_colliders)
{
if (m_findTimer != null)
m_findTimer.Watch.Start();
List<Collision> collisions = new List<Collision>();
e.beginUpdate();
// find possible colliders
DefaultSelectionExecutor exe = new DefaultSelectionExecutor();
sceneManager.getCollisions(e.BoundingBox,exe);
foreach (SceneElement se in exe.Selected)
{
CollisionDetectionElement collider = se.GameObject.getFirst(typeof(CollisionDetectionElement)) as CollisionDetectionElement;
if (collider != null && e != collider)
{
foreach (AbstractCollider ac in collider.Colliders)
{
foreach (AbstractCollider ac2 in e.Colliders)
{
if (((ac.CollidesWith & ac2.CollisionGroup) > 0) || ((ac.CollisionGroup & ac2.CollidesWith) > 0))
{
Vector3 normal1, normal2;
if ( ac != ac2 )
{
if (ac.intersects(ac2, out normal1, out normal2))
{
Collision c = new Collision(e, collider, normal2, normal1);
collisions.Add(c);
}
}
}
}
}
}
}
if (m_findTimer != null)
m_findTimer.Watch.Stop();
if (m_resolveTimer != null)
m_resolveTimer.Watch.Start();
// resolve collisions
foreach (Collision c in collisions)
{
// report collision
CollisionEventArgs args1 = new CollisionEventArgs(c.Collider2);
CollisionEventArgs args2 = new CollisionEventArgs(c.Collider1);
if (c.Normal2.LengthSquared() > 0)
{
args1.HasCollisionNormal = true;
args1.CollisionNormal = c.Normal2;
}
if (c.Normal1.LengthSquared() > 0)
{
args2.HasCollisionNormal = true;
args2.CollisionNormal = c.Normal1;
}
c.Collider1.OnCollision(args1);
c.Collider2.OnCollision(args2);
}
e.endUpdate();
if (m_resolveTimer != null)
m_resolveTimer.Watch.Stop();
}
if (m_mainTimer != null)
m_mainTimer.Watch.Stop();
base.Update(gameTime);
}
public void OnCollision(CollisionEventArgs e)
{
m_isIntersecting = true;
if (Collision != null)
{
Collision(this, e);
}
}
