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Diffstat (limited to 'Box2d/Assets/Program/Box2d/Dynamics/Contacts/EdgeAndCircleContact.cs')
| -rw-r--r-- | Box2d/Assets/Program/Box2d/Dynamics/Contacts/EdgeAndCircleContact.cs | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/Box2d/Assets/Program/Box2d/Dynamics/Contacts/EdgeAndCircleContact.cs b/Box2d/Assets/Program/Box2d/Dynamics/Contacts/EdgeAndCircleContact.cs new file mode 100644 index 0000000..999154c --- /dev/null +++ b/Box2d/Assets/Program/Box2d/Dynamics/Contacts/EdgeAndCircleContact.cs @@ -0,0 +1,55 @@ +/* + Box2DX Copyright (c) 2009 Ihar Kalasouski http://code.google.com/p/box2dx + Box2D original C++ version Copyright (c) 2006-2009 Erin Catto http://www.gphysics.com + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ + +using Box2DX.Collision; +using Box2DX.Common; + +namespace Box2DX.Dynamics +{ + public class EdgeAndCircleContact : Contact + { + public EdgeAndCircleContact(Fixture fixtureA, Fixture fixtureB) + : base(fixtureA, fixtureB) + { + Box2DXDebug.Assert(fixtureA.ShapeType == ShapeType.EdgeShape); + Box2DXDebug.Assert(fixtureB.ShapeType == ShapeType.CircleShape); + _manifold.PointCount = 0; + _manifold.Points[0].NormalImpulse = 0.0f; + _manifold.Points[0].TangentImpulse = 0.0f; + CollideShapeFunction = CollideEdgeAndCircle; + } + + private static void CollideEdgeAndCircle(ref Manifold manifold, Shape shape1, XForm xf1, Shape shape2, XForm xf2) + { + Collision.Collision.CollideEdgeAndCircle(ref manifold, (EdgeShape)shape1, xf1, (CircleShape)shape2, xf2); + } + + new public static Contact Create(Fixture fixtureA, Fixture fixtureB) + { + return new EdgeAndCircleContact(fixtureA, fixtureB); + } + + new public static void Destroy(ref Contact contact) + { + contact = null; + } + } +}
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