private static void CollideShapesOfDifferentTypes(Entity <Game> entity, Shape shape, ref Transform entityTransform, ref AABB shapeBB)
{
switch (shape.Type)
{
case ShapeType.Circle when _shape.Type == ShapeType.AABB:
{
var circle = (CircleShape)shape;
if (Intersector.AABBIntersectsCircle(ref _shapeBB, ref entityTransform.Position, circle.Radius))
{
AddCollision(entity, shape);
}
break;
}
case ShapeType.AABB when _shape.Type == ShapeType.Circle:
{
var circle = (CircleShape)_shape;
if (Intersector.AABBIntersectsCircle(ref shapeBB, ref _transform.Position, circle.Radius))
{
AddCollision(entity, shape);
}
break;
}
default:
throw new ArgumentOutOfRangeException();
}
}
private void CircleCallback(Entity <Game> entity, Shape shape)
{
var transform = new Transform(entity.Get <Position>().Value, entity.Get <Orientation>().Value);
switch (shape.Type)
{
case ShapeType.AABB:
var aabbShape = (AABBShape)shape;
var aabb = aabbShape.GetBoundingBox(ref transform);
if (Intersector.AABBIntersectsCircle(ref aabb, ref _circlePosition, _circleRadius))
{
_callback(entity, shape);
}
break;
case ShapeType.Circle:
var circleShape = (CircleShape)shape;
if (Intersector.CirclesIntersects(ref _circlePosition, _circleRadius, ref transform.Position, circleShape.Radius))
{
_callback(entity, shape);
}
break;
default:
throw new ArgumentOutOfRangeException();
}
}
private static void CollideShapesOfSameType(Entity <Game> entity, Shape shape, ref Transform entityTransform)
{
switch (shape.Type)
{
case ShapeType.AABB:
// collision already checked - just generate collisions
AddCollision(entity, shape);
break;
case ShapeType.Circle:
var circle1 = (CircleShape)shape;
var circle2 = (CircleShape)_shape;
if (Intersector.CirclesIntersects(ref entityTransform.Position, circle1.Radius,
ref _transform.Position, circle2.Radius))
{
AddCollision(entity, shape);
}
break;
default:
throw new ArgumentOutOfRangeException();
}
}