Interface B2ShapeInterface

CollisionB2Shape.go:46–86

}

type B2ShapeInterface interface {
	Destroy()

	/// Clone the concrete shape using the provided allocator.
	Clone() B2ShapeInterface

	/// Get the type of this shape. You can use this to down cast to the concrete shape.
	/// @return the shape type.
	GetType() uint8

	/// Get the type of this shape. You can use this to down cast to the concrete shape.
	/// @return the shape type.
	GetRadius() float64

	/// Get the number of child primitives.
	GetChildCount() int

	/// Test a point for containment in this shape. This only works for convex shapes.
	/// @param xf the shape world transform.
	/// @param p a point in world coordinates.
	TestPoint(xf B2Transform, p B2Vec2) bool

	/// Cast a ray against a child shape.
	/// @param output the ray-cast results.
	/// @param input the ray-cast input parameters.
	/// @param transform the transform to be applied to the shape.
	/// @param childIndex the child shape index
	RayCast(output *B2RayCastOutput, input B2RayCastInput, transform B2Transform, childIndex int) bool

	/// Given a transform, compute the associated axis aligned bounding box for a child shape.
	/// @param aabb returns the axis aligned box.
	/// @param xf the world transform of the shape.
	/// @param childIndex the child shape
	ComputeAABB(aabb *B2AABB, xf B2Transform, childIndex int)

	/// Compute the mass properties of this shape using its dimensions and density.
	/// The inertia tensor is computed about the local origin.
	/// @param massData returns the mass data for this shape.
	/// @param density the density in kilograms per meter squared.
	ComputeMass(massData *B2MassData, density float64)
}

type B2Shape struct {
	M_type uint8