first commit

[blok] / Box2D / Source / Dynamics / Joints / b2Joint.cpp

diff --git a/Box2D/Source/Dynamics/Joints/b2Joint.cpp b/Box2D/Source/Dynamics/Joints/b2Joint.cpp
new file mode 100644 (file)
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+++ b/Box2D/Source/Dynamics/Joints/b2Joint.cpp
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+/*
+* Copyright (c) 2006-2007 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.
+*/
+
+#include "b2Joint.h"
+#include "b2DistanceJoint.h"
+#include "b2MouseJoint.h"
+#include "b2RevoluteJoint.h"
+#include "b2PrismaticJoint.h"
+#include "b2PulleyJoint.h"
+#include "b2GearJoint.h"
+#include "../b2Body.h"
+#include "../b2World.h"
+#include "../../Common/b2BlockAllocator.h"
+#include "../../Collision/b2BroadPhase.h"
+
+#include <new>
+
+b2Joint* b2Joint::Create(const b2JointDef* def, b2BlockAllocator* allocator)
+{
+       b2Joint* joint = NULL;
+
+       switch (def->type)
+       {
+       case e_distanceJoint:
+               {
+                       void* mem = allocator->Allocate(sizeof(b2DistanceJoint));
+                       joint = new (mem) b2DistanceJoint((b2DistanceJointDef*)def);
+               }
+               break;
+
+       case e_mouseJoint:
+               {
+                       void* mem = allocator->Allocate(sizeof(b2MouseJoint));
+                       joint = new (mem) b2MouseJoint((b2MouseJointDef*)def);
+               }
+               break;
+
+       case e_prismaticJoint:
+               {
+                       void* mem = allocator->Allocate(sizeof(b2PrismaticJoint));
+                       joint = new (mem) b2PrismaticJoint((b2PrismaticJointDef*)def);
+               }
+               break;
+
+       case e_revoluteJoint:
+               {
+                       void* mem = allocator->Allocate(sizeof(b2RevoluteJoint));
+                       joint = new (mem) b2RevoluteJoint((b2RevoluteJointDef*)def);
+               }
+               break;
+
+       case e_pulleyJoint:
+               {
+                       void* mem = allocator->Allocate(sizeof(b2PulleyJoint));
+                       joint = new (mem) b2PulleyJoint((b2PulleyJointDef*)def);
+               }
+               break;
+
+       case e_gearJoint:
+               {
+                       void* mem = allocator->Allocate(sizeof(b2GearJoint));
+                       joint = new (mem) b2GearJoint((b2GearJointDef*)def);
+               }
+               break;
+
+       default:
+               b2Assert(false);
+               break;
+       }
+
+       return joint;
+}
+
+void b2Joint::Destroy(b2Joint* joint, b2BlockAllocator* allocator)
+{
+       joint->~b2Joint();
+       switch (joint->m_type)
+       {
+       case e_distanceJoint:
+               allocator->Free(joint, sizeof(b2DistanceJoint));
+               break;
+
+       case e_mouseJoint:
+               allocator->Free(joint, sizeof(b2MouseJoint));
+               break;
+
+       case e_prismaticJoint:
+               allocator->Free(joint, sizeof(b2PrismaticJoint));
+               break;
+
+       case e_revoluteJoint:
+               allocator->Free(joint, sizeof(b2RevoluteJoint));
+               break;
+
+       case e_pulleyJoint:
+               allocator->Free(joint, sizeof(b2PulleyJoint));
+               break;
+
+       case e_gearJoint:
+               allocator->Free(joint, sizeof(b2GearJoint));
+               break;
+
+       default:
+               b2Assert(false);
+               break;
+       }
+}
+
+b2Joint::b2Joint(const b2JointDef* def)
+{
+       m_type = def->type;
+       m_prev = NULL;
+       m_next = NULL;
+       m_body1 = def->body1;
+       m_body2 = def->body2;
+       m_collideConnected = def->collideConnected;
+       m_islandFlag = false;
+       m_userData = def->userData;
+}