C# Class Project290.Physics.Collision.Collision

Public Methods

Method	Description
CollideCircles ( Manifold &manifold, CircleShape circleA, Transform &xfA, CircleShape circleB, Transform &xfB ) : void
CollideEdgeAndCircle ( Manifold &manifold, EdgeShape edgeA, Transform &transformA, CircleShape circleB, Transform &transformB ) : void	Compute contact points for edge versus circle. This accounts for edge connectivity.
CollideEdgeAndPolygon ( Manifold &manifold, EdgeShape edgeA, Transform &xfA, PolygonShape polygonB, Transform &xfB ) : void	Collides and edge and a polygon, taking into account edge adjacency.
CollidePolygonAndCircle ( Manifold &manifold, PolygonShape polygonA, Transform &transformA, CircleShape circleB, Transform &transformB ) : void	Compute the collision manifold between a polygon and a circle.
CollidePolygons ( Manifold &manifold, PolygonShape polyA, Transform &transformA, PolygonShape polyB, Transform &transformB ) : void	Compute the collision manifold between two polygons.
GetPointStates ( FixedArray2 &state1, FixedArray2 &state2, Manifold &manifold1, Manifold &manifold2 ) : void
GetWorldManifold ( Manifold &manifold, Transform &transformA, float radiusA, Transform &transformB, float radiusB, Vector2 &normal, FixedArray2 &points ) : void	Evaluate the manifold with supplied transforms. This assumes modest motion from the original state. This does not change the point count, impulses, etc. The radii must come from the Shapes that generated the manifold.

Private Methods

Method	Description
ClipSegmentToLine ( FixedArray2 &vOut, FixedArray2 &vIn, Vector2 normal, float offset, int vertexIndexA ) : int	Clipping for contact manifolds.
ComputeEdgeSeparation ( ) : EPAxis
ComputePolygonSeparation ( ) : EPAxis
EdgeSeparation ( PolygonShape poly1, Transform &xf1, int edge1, PolygonShape poly2, Transform &xf2 ) : float	Find the separation between poly1 and poly2 for a give edge normal on poly1.
FindIncidentEdge ( FixedArray2 &c, EPProxy proxy1, int edge1, EPProxy proxy2 ) : void
FindIncidentEdge ( FixedArray2 &c, PolygonShape poly1, Transform &xf1, int edge1, PolygonShape poly2, Transform &xf2 ) : void
FindMaxSeparation ( int &edgeIndex, PolygonShape poly1, Transform &xf1, PolygonShape poly2, Transform &xf2 ) : float	Find the max separation between poly1 and poly2 using edge normals from poly1.

Method Details

CollideCircles() public static method

public static CollideCircles ( Manifold &manifold, CircleShape circleA, Transform &xfA, CircleShape circleB, Transform &xfB ) : void
manifold	Manifold
circleA	Project290.Physics.Collision.Shapes.CircleShape
xfA	Transform
circleB	Project290.Physics.Collision.Shapes.CircleShape
xfB	Transform
return	void

CollideEdgeAndCircle() public static method

Compute contact points for edge versus circle. This accounts for edge connectivity.

public static CollideEdgeAndCircle ( Manifold &manifold, EdgeShape edgeA, Transform &transformA, CircleShape circleB, Transform &transformB ) : void
manifold	Manifold	The manifold.
edgeA	Project290.Physics.Collision.Shapes.EdgeShape	The edge A.
transformA	Transform	The transform A.
circleB	Project290.Physics.Collision.Shapes.CircleShape	The circle B.
transformB	Transform	The transform B.
return	void

CollideEdgeAndPolygon() public static method

Collides and edge and a polygon, taking into account edge adjacency.

public static CollideEdgeAndPolygon ( Manifold &manifold, EdgeShape edgeA, Transform &xfA, PolygonShape polygonB, Transform &xfB ) : void
manifold	Manifold	The manifold.
edgeA	Project290.Physics.Collision.Shapes.EdgeShape	The edge A.
xfA	Transform	The xf A.
polygonB	Project290.Physics.Collision.Shapes.PolygonShape	The polygon B.
xfB	Transform	The xf B.
return	void

CollidePolygonAndCircle() public static method

Compute the collision manifold between a polygon and a circle.

public static CollidePolygonAndCircle ( Manifold &manifold, PolygonShape polygonA, Transform &transformA, CircleShape circleB, Transform &transformB ) : void
manifold	Manifold	The manifold.
polygonA	Project290.Physics.Collision.Shapes.PolygonShape	The polygon A.
transformA	Transform	The transform of A.
circleB	Project290.Physics.Collision.Shapes.CircleShape	The circle B.
transformB	Transform	The transform of B.
return	void

CollidePolygons() public static method

Compute the collision manifold between two polygons.

public static CollidePolygons ( Manifold &manifold, PolygonShape polyA, Transform &transformA, PolygonShape polyB, Transform &transformB ) : void
manifold	Manifold	The manifold.
polyA	Project290.Physics.Collision.Shapes.PolygonShape	The poly A.
transformA	Transform	The transform A.
polyB	Project290.Physics.Collision.Shapes.PolygonShape	The poly B.
transformB	Transform	The transform B.
return	void

GetPointStates() public static method

public static GetPointStates ( FixedArray2 &state1, FixedArray2 &state2, Manifold &manifold1, Manifold &manifold2 ) : void
state1	FixedArray2
state2	FixedArray2
manifold1	Manifold
manifold2	Manifold
return	void

GetWorldManifold() public static method

Evaluate the manifold with supplied transforms. This assumes modest motion from the original state. This does not change the point count, impulses, etc. The radii must come from the Shapes that generated the manifold.

public static GetWorldManifold ( Manifold &manifold, Transform &transformA, float radiusA, Transform &transformB, float radiusB, Vector2 &normal, FixedArray2 &points ) : void
manifold	Manifold	The manifold.
transformA	Transform	The transform for A.
radiusA	float	The radius for A.
transformB	Transform	The transform for B.
radiusB	float	The radius for B.
normal	Vector2	World vector pointing from A to B
points	FixedArray2	Torld contact point (point of intersection).
return	void