private static bool LoFiTest(GameLibBoundingBox boxA, GameLibBoundingBox boxB)
{
return (boxA.BoundingRectangle.Intersects(boxB.BoundingRectangle));
}
public static bool TestWithInfo(Object2D objA, Object2D objB, out GameLibBoundingBox sourceBoundingBox, out GameLibBoundingBox targetBoundingBox)
{
bool useSat = (objA.CollisionMode == CollisionModes.SatBox && objB.CollisionMode == CollisionModes.SatBox);
foreach (var boxA in objA.BoundingBoxes)
{
foreach (var boxB in objB.BoundingBoxes)
{
if (Test(boxA, boxB, !useSat))
{
sourceBoundingBox = boxA;
targetBoundingBox = boxB;
return true;
}
}
}
sourceBoundingBox = null;
targetBoundingBox = null;
return false;
}
public void SetupDefaultBoundingBox()
{
if (Texture == null)
{
throw new Exception("Texture has to be set to create a boundingbox");
}
BoundingBoxes.Clear();
var box = new GameLibBoundingBox(new Rectangle(0, 0, Width, Height), Origin, 0, Angle);
BoundingBoxes.Add(box);
}
/// <summary>
/// Determines if two GameLibBoundingBox-object are intersecting.
/// </summary>
/// <param name="boxA"></param>
/// <param name="boxB"></param>
/// <returns></returns>
public static bool Test(GameLibBoundingBox boxA, GameLibBoundingBox boxB, bool onlyLoFiTest)
{
// Test "lo-fi" by bounding sphere
var lofiCheck = LoFiTest(boxA, boxB);
if (!lofiCheck)
return false;
// We only want to test the bounding boxes and not the rotated ones.
if (onlyLoFiTest)
return true;
// Test "hi-fi" by SAT
boxA.CalculatedAxis(); // Update the axis
boxB.CalculatedAxis();
if (!TestAxis(boxA.AxisA, boxA.Vertices, boxB.Vertices))
return false;
if (!TestAxis(boxA.AxisB, boxA.Vertices, boxB.Vertices))
return false;
if (!TestAxis(boxB.AxisA, boxA.Vertices, boxB.Vertices))
return false;
if (!TestAxis(boxB.AxisB, boxA.Vertices, boxB.Vertices))
return false;
return true;
}
//public virtual void OnObjectCollision(Object2D collidingObject) { collidingObjects.Add(collidingObject); }
public virtual void OnObjectCollision(Object2D collidingObject, GameLibBoundingBox sourceBoundingBox, GameLibBoundingBox targetBoundingBox)
{
collidingObjects.Add(collidingObject);
}
