b2WorldCallbacks.h
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00001 /*
00002 * Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
00003 *
00004 * This software is provided 'as-is', without any express or implied
00005 * warranty.  In no event will the authors be held liable for any damages
00006 * arising from the use of this software.
00007 * Permission is granted to anyone to use this software for any purpose,
00008 * including commercial applications, and to alter it and redistribute it
00009 * freely, subject to the following restrictions:
00010 * 1. The origin of this software must not be misrepresented; you must not
00011 * claim that you wrote the original software. If you use this software
00012 * in a product, an acknowledgment in the product documentation would be
00013 * appreciated but is not required.
00014 * 2. Altered source versions must be plainly marked as such, and must not be
00015 * misrepresented as being the original software.
00016 * 3. This notice may not be removed or altered from any source distribution.
00017 */
00018 
00019 #ifndef B2_WORLD_CALLBACKS_H
00020 #define B2_WORLD_CALLBACKS_H
00021 
00022 #include <Box2D/Common/b2Settings.h>
00023 
00024 struct b2Vec2;
00025 struct b2Transform;
00026 class b2Fixture;
00027 class b2Body;
00028 class b2Joint;
00029 class b2Contact;
00030 struct b2ContactResult;
00031 struct b2Manifold;
00032 
00036 class b2DestructionListener
00037 {
00038 public:
00039         virtual ~b2DestructionListener() {}
00040 
00043         virtual void SayGoodbye(b2Joint* joint) = 0;
00044 
00047         virtual void SayGoodbye(b2Fixture* fixture) = 0;
00048 };
00049 
00052 class b2ContactFilter
00053 {
00054 public:
00055         virtual ~b2ContactFilter() {}
00056 
00059         virtual bool ShouldCollide(b2Fixture* fixtureA, b2Fixture* fixtureB);
00060 };
00061 
00065 struct b2ContactImpulse
00066 {
00067         float32 normalImpulses[b2_maxManifoldPoints];
00068         float32 tangentImpulses[b2_maxManifoldPoints];
00069         int32 count;
00070 };
00071 
00081 class b2ContactListener
00082 {
00083 public:
00084         virtual ~b2ContactListener() {}
00085 
00087         virtual void BeginContact(b2Contact* contact) { B2_NOT_USED(contact); }
00088 
00090         virtual void EndContact(b2Contact* contact) { B2_NOT_USED(contact); }
00091 
00102         virtual void PreSolve(b2Contact* contact, const b2Manifold* oldManifold)
00103         {
00104                 B2_NOT_USED(contact);
00105                 B2_NOT_USED(oldManifold);
00106         }
00107 
00114         virtual void PostSolve(b2Contact* contact, const b2ContactImpulse* impulse)
00115         {
00116                 B2_NOT_USED(contact);
00117                 B2_NOT_USED(impulse);
00118         }
00119 };
00120 
00123 class b2QueryCallback
00124 {
00125 public:
00126         virtual ~b2QueryCallback() {}
00127 
00130         virtual bool ReportFixture(b2Fixture* fixture) = 0;
00131 };
00132 
00135 class b2RayCastCallback
00136 {
00137 public:
00138         virtual ~b2RayCastCallback() {}
00139 
00151         virtual float32 ReportFixture(  b2Fixture* fixture, const b2Vec2& point,
00152                                                                         const b2Vec2& normal, float32 fraction) = 0;
00153 };
00154 
00155 #endif


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autogenerated on Thu Jun 6 2019 22:08:35