Class EdgeShape

java.lang.Object
org.jbox2d.collision.shapes.Shape
org.jbox2d.collision.shapes.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 Details

    • 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 Details

    • EdgeShape

      public EdgeShape()
  • Method Details

    • 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.
    • raycast

      public boolean raycast(RayCastOutput output, RayCastInput input, Transform xf, int childIndex)
      Description copied from class: Shape
      Cast a ray against a child shape.
      Specified by:
      raycast in class Shape
      Returns:
      if hit
    • 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.
    • clone

      public Shape clone()
      Specified by:
      clone in class Shape