public static bool BoundingBoxTest(SFML.Graphics.Sprite Object1, SFML.Graphics.Shape Object2)
{
OrientedBoundingBox OBB1 = new OrientedBoundingBox(Object1);
OrientedBoundingBox OBB2 = new OrientedBoundingBox(Object2);
return(BoundingBoxTest(OBB1, OBB2));
}
public static bool CircleTest(SFML.Graphics.Sprite Object1, SFML.Graphics.Shape Object2)
{
SFML.Window.Vector2f Obj1Size = GetSpriteSize(Object1);
SFML.Window.Vector2f Obj2Size = GetSpriteSize(Object2);
float Radius1 = (Obj1Size.X + Obj1Size.Y) / 4.0f;
float Radius2 = (Obj2Size.X + Obj2Size.Y) / 4.0f;
SFML.Window.Vector2f Distance = GetSpriteCenter(Object1) - GetSpriteCenter(Object2);
return(Distance.X * Distance.X + Distance.Y * Distance.Y <= (Radius1 + Radius2) * (Radius1 + Radius2));
}
public OrientedBoundingBox(SFML.Graphics.Shape Object) // Calculate the four points of the OBB from a transformed (scaled, rotated...) sprite
{
Points = new SFML.Window.Vector2f[4];
SFML.Graphics.Transform trans = Object.Transform;
Points[0] = trans.TransformPoint(0.0f, 0.0f);
Points[1] = trans.TransformPoint(Object.GetLocalBounds().Width, 0.0f);
Points[2] = trans.TransformPoint(Object.GetLocalBounds().Width, Object.GetLocalBounds().Height);
Points[3] = trans.TransformPoint(0.0f, Object.GetLocalBounds().Height);
}
private static SFML.Window.Vector2f GetSpriteSize(SFML.Graphics.Shape Object)
{
SFML.Graphics.IntRect OriginalSize = Object.TextureRect;
SFML.Window.Vector2f Scale = Object.Scale;
return(new SFML.Window.Vector2f(OriginalSize.Width * Scale.X, OriginalSize.Height * Scale.Y));
}
private static SFML.Window.Vector2f GetSpriteCenter(SFML.Graphics.Shape Object)
{
SFML.Graphics.FloatRect AABB = Object.GetGlobalBounds();
return(new SFML.Window.Vector2f(AABB.Left + AABB.Width / 2.0f, AABB.Top + AABB.Height / 2.0f));
}
