private bool ForEachRay(Entity oShadow, object p1, object p2, object p3)
{
ShadowRegion shadow = (ShadowRegion)oShadow;
if (_Shadow == shadow)
{
return(true);
}
LightSource light = (LightSource)p1;
Vector3 dir = light.Position - Position;
Vector3 diff = shadow.Position - Position;
float t = (diff.X * dir.X + diff.Y * dir.Y) / (dir.X * dir.X + dir.Y * dir.Y);
if (t < 0.0f)
{
t = 0.0f;
}
if (t > 1.0f)
{
t = 1.0f;
}
Vector3 closest = Position + t * dir;
Vector3 d = shadow.Position - closest;
float distsqr = d.X * d.X + d.Y * d.Y;
return(distsqr > shadow.Radius * shadow.Radius);
}
public Tile(Screen parent, Vector3 position, String texName, bool collidable)
: base(((collidable) ? parent.Walls : parent.Tiles), position, new Vector3(TileWidth, TileHeight, 1f), Vector3.Zero)
{
base.Initialize();
// Animations
_Animations = new AnimationSet();
_Animations.AddAnimation(new Animation(texName, "Normal", 1, 1, 1.0f));
if (collidable)
{
// Collision settings
_CollisionType = CollisionType.Passive;
_Radius *= 1.5f;
_CollisionRadius = _Radius * 0.6f;
_Shadow = new ShadowRegion(this, _Position, _Radius);
_Size.Z = _Size.X;
}
else
{
CollisionType = CollisionType.None;
}
_EntityClass = texName.Substring(21, (texName.Length - 25));
}