void Collide( CollisionEntityType toType, CollisionEntityType[] fromTypes )
{
foreach(var a in typed_entries[(int)toType]) {
var a_center = a.center();
var a_rad = a.radius();
for(int i=0; i<fromTypes.Length; i++) {
foreach(var b in typed_entries[(int)fromTypes[i]]) {
if( a.owner==b.owner ) {
continue;
}
float r = a_rad + b.radius();
Vector2 offset = b.center() - a_center;
float lensqr = offset.LengthSquared();
if (lensqr < r * r)
{
a.owner.CollideTo(b.owner, b.collider);
b.owner.CollideFrom(a.owner, a.collider);
}
}
}
}
}
public void Add(CollisionEntityType type, GameEntity owner, GetCenterDelegate center, GetRadiusDelegate radius)
{
CollisionEntry entry = new CollisionEntry () { type = type, owner = owner, center = center, radius = radius };
List<CollisionEntry> entries = typed_entries [(int)type];
entries.Add (entry);
}
public void Add(CollisionEntityType type, GameEntity owner, Node collider, GetCenterDelegate center, GetRadiusDelegate radius)
{
CollisionEntry entry = new CollisionEntry() { type = type, owner = owner, collider = collider, center = center, radius = radius };
Add (entry);
}
