Class EdgeShape


  • public class EdgeShape
    extends Shape
    A line segment (edge) shape. These can be connected in chains or loops to other edge shapes. The connectivity information is used to ensure correct contact normals.
    • Field Detail

      • m_vertex1

        public final Vec2 m_vertex1
        edge vertex 1
      • m_vertex2

        public final Vec2 m_vertex2
        edge vertex 2
      • m_vertex0

        public final Vec2 m_vertex0
        optional adjacent vertex 1. Used for smooth collision
      • m_vertex3

        public final Vec2 m_vertex3
        optional adjacent vertex 2. Used for smooth collision
      • m_hasVertex0

        public boolean m_hasVertex0
      • m_hasVertex3

        public boolean m_hasVertex3
      • normal

        private final Vec2 normal
    • Constructor Detail

      • EdgeShape

        public EdgeShape()
    • Method Detail

      • getChildCount

        public int getChildCount()
        Description copied from class: Shape
        Get the number of child primitives
        Specified by:
        getChildCount in class Shape
        Returns:
      • set

        public void set​(Vec2 v1,
                        Vec2 v2)
      • testPoint

        public boolean testPoint​(Transform xf,
                                 Vec2 p)
        Description copied from class: Shape
        Test a point for containment in this shape. This only works for convex shapes.
        Specified by:
        testPoint in class Shape
        Parameters:
        xf - the shape world transform.
        p - a point in world coordinates.
      • computeAABB

        public void computeAABB​(AABB aabb,
                                Transform xf,
                                int childIndex)
        Description copied from class: Shape
        Given a transform, compute the associated axis aligned bounding box for a child shape.
        Specified by:
        computeAABB in class Shape
      • computeMass

        public void computeMass​(MassData massData,
                                float density)
        Description copied from class: Shape
        Compute the mass properties of this shape using its dimensions and density. The inertia tensor is computed about the local origin.
        Specified by:
        computeMass in class Shape
        Parameters:
        massData - returns the mass data for this shape.
        density - the density in kilograms per meter squared.