initial commit. includes PhsyicsBox2dExtension

AndEngine/jni/Box2D/Dynamics/b2Island.h

@@ -0,0 +1,105 @@
+/*
+* 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.
+*/
+
+#ifndef B2_ISLAND_H
+#define B2_ISLAND_H
+
+#include "Box2D/Common/b2Math.h"
+#include "Box2D/Dynamics/b2Body.h"
+#include "Box2D/Dynamics/b2TimeStep.h"
+
+class b2Contact;
+class b2Joint;
+class b2StackAllocator;
+class b2ContactListener;
+struct b2ContactConstraint;
+
+/// This is an internal structure.
+struct b2Position
+{
+	b2Vec2 x;
+	float32 a;
+};
+
+/// This is an internal structure.
+struct b2Velocity
+{
+	b2Vec2 v;
+	float32 w;
+};
+
+/// This is an internal class.
+class b2Island
+{
+public:
+	b2Island(int32 bodyCapacity, int32 contactCapacity, int32 jointCapacity,
+			b2StackAllocator* allocator, b2ContactListener* listener);
+	~b2Island();
+
+	void Clear()
+	{
+		m_bodyCount = 0;
+		m_contactCount = 0;
+		m_jointCount = 0;
+	}
+
+	void Solve(const b2TimeStep& step, const b2Vec2& gravity, bool allowSleep);
+
+	void Add(b2Body* body)
+	{
+		b2Assert(m_bodyCount < m_bodyCapacity);
+		body->m_islandIndex = m_bodyCount;
+		m_bodies[m_bodyCount++] = body;
+	}
+
+	void Add(b2Contact* contact)
+	{
+		b2Assert(m_contactCount < m_contactCapacity);
+		m_contacts[m_contactCount++] = contact;
+	}
+
+	void Add(b2Joint* joint)
+	{
+		b2Assert(m_jointCount < m_jointCapacity);
+		m_joints[m_jointCount++] = joint;
+	}
+
+	void Report(const b2ContactConstraint* constraints);
+
+	b2StackAllocator* m_allocator;
+	b2ContactListener* m_listener;
+
+	b2Body** m_bodies;
+	b2Contact** m_contacts;
+	b2Joint** m_joints;
+
+	b2Position* m_positions;
+	b2Velocity* m_velocities;
+
+	int32 m_bodyCount;
+	int32 m_jointCount;
+	int32 m_contactCount;
+
+	int32 m_bodyCapacity;
+	int32 m_contactCapacity;
+	int32 m_jointCapacity;
+
+	int32 m_positionIterationCount;
+};
+
+#endif