Class Collision

Namespace

Alis.Core.Physic.Collision

Assembly

Alis.dll

Collision methods

public static class Collision

Inheritance

object

Collision

Inherited Members

object.Equals(object?)

object.Equals(object?, object?)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object?, object?)

object.ToString()

Methods

ClipSegmentToLine(out FixedArray2<ClipVertex>, ref FixedArray2<ClipVertex>, Vector2, float, int)

Clipping for contact manifolds.

private static int ClipSegmentToLine(out FixedArray2<ClipVertex> vOut, ref FixedArray2<ClipVertex> vIn, Vector2 normal, float offset, int vertexIndexA)

Parameters

vOut FixedArray2<ClipVertex>

The v out.

vIn FixedArray2<ClipVertex>

The v in.

normal Vector2

The normal.

offset float

The offset.

vertexIndexA int

The vertex index A.

Returns

int

CollideCircles(ref Manifold, CircleShape, ref Transform, CircleShape, ref Transform)

Compute the collision manifold between two circles.

public static void CollideCircles(ref Manifold manifold, CircleShape circleA, ref Transform xfA, CircleShape circleB, ref Transform xfB)

Parameters

manifold Manifold

circleA CircleShape

xfA Transform

circleB CircleShape

xfB Transform

CollideEdgeAndCircle(ref Manifold, EdgeShape, ref Transform, CircleShape, ref Transform)

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

public static void CollideEdgeAndCircle(ref Manifold manifold, EdgeShape edgeA, ref Transform transformA, CircleShape circleB, ref Transform transformB)

Parameters

manifold Manifold

The manifold.

edgeA EdgeShape

The edge A.

transformA Transform

The transform A.

circleB CircleShape

The circle B.

transformB Transform

The transform B.

CollideEdgeAndPolygon(ref Manifold, EdgeShape, ref Transform, PolygonShape, ref Transform)

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

public static void CollideEdgeAndPolygon(ref Manifold manifold, EdgeShape edgeA, ref Transform xfA, PolygonShape polygonB, ref Transform xfB)

Parameters

manifold Manifold

The manifold.

edgeA EdgeShape

The edge A.

xfA Transform

The xf A.

polygonB PolygonShape

The polygon B.

xfB Transform

The xf B.

CollidePolygonAndCircle(ref Manifold, PolygonShape, ref Transform, CircleShape, ref Transform)

Compute the collision manifold between a polygon and a circle.

public static void CollidePolygonAndCircle(ref Manifold manifold, PolygonShape polygonA, ref Transform xfA, CircleShape circleB, ref Transform xfB)

Parameters

manifold Manifold

The manifold.

polygonA PolygonShape

The polygon A.

xfA Transform

The transform of A.

circleB CircleShape

The circle B.

xfB Transform

The transform of B.

CollidePolygons(ref Manifold, PolygonShape, ref Transform, PolygonShape, ref Transform)

Compute the collision manifold between two polygons.

public static void CollidePolygons(ref Manifold manifold, PolygonShape polyA, ref Transform transformA, PolygonShape polyB, ref Transform transformB)

Parameters

manifold Manifold

The manifold.

polyA PolygonShape

The poly A.

transformA Transform

The transform A.

polyB PolygonShape

The poly B.

transformB Transform

The transform B.

EdgeSeparation(PolygonShape, ref Transform, int, PolygonShape)

Find the separation between poly1 and poly2 for a give edge normal on poly1.

private static float EdgeSeparation(PolygonShape poly1, ref Transform xf1To2, int edge1, PolygonShape poly2)

Parameters

poly1 PolygonShape

The poly1.

xf1To2 Transform

edge1 int

The edge1.

poly2 PolygonShape

The poly2.

Returns

float

FindIncidentEdge(out FixedArray2<ClipVertex>, PolygonShape, ref Transform, int, PolygonShape, ref Transform)

Finds the incident edge using the specified c

private static void FindIncidentEdge(out FixedArray2<ClipVertex> c, PolygonShape poly1, ref Transform xf1, int edge1, PolygonShape poly2, ref Transform xf2)

Parameters

c FixedArray2<ClipVertex>

The

poly1 PolygonShape

The poly

xf1 Transform

The xf

edge1 int

The edge

poly2 PolygonShape

The poly

xf2 Transform

The xf

FindMaxSeparation(out int, PolygonShape, ref Transform, PolygonShape, ref Transform)

Find the max separation between poly1 and poly2 using edge normals from poly1.

private static float FindMaxSeparation(out int edgeIndex, PolygonShape poly1, ref Transform xf1, PolygonShape poly2, ref Transform xf2)

Parameters

edgeIndex int

Index of the edge.

poly1 PolygonShape

The poly1.

xf1 Transform

The XF1.

poly2 PolygonShape

The poly2.

xf2 Transform

The XF2.

Returns

float

GetPointStates(out FixedArray2<PointState>, out FixedArray2<PointState>, ref Manifold, ref Manifold)

Gets the point states using the specified state 1

public static void GetPointStates(out FixedArray2<PointState> state1, out FixedArray2<PointState> state2, ref Manifold manifold1, ref Manifold manifold2)

Parameters

state1 FixedArray2<PointState>

The state

state2 FixedArray2<PointState>

The state

manifold1 Manifold

The manifold

manifold2 Manifold

The manifold

TestOverlap(Shape, int, Shape, int, ref Transform, ref Transform)

Test overlap between the two shapes.

public static bool TestOverlap(Shape shapeA, int indexA, Shape shapeB, int indexB, ref Transform xfA, ref Transform xfB)

Parameters

shapeA Shape

The first shape.

indexA int

The index for the first shape.

shapeB Shape

The second shape.

indexB int

The index for the second shape.

xfA Transform

The transform for the first shape.

xfB Transform

The transform for the seconds shape.

Returns

bool