web/static/doc_controle/tp/Box2D/src/Box2D/Collision/b2TimeOfImpact.h

-/*
-* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
-*
-* 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_TIME_OF_IMPACT_H
-#define B2_TIME_OF_IMPACT_H
-
-#include "Box2D/Common/b2Math.h"
-#include "Box2D/Collision/b2Distance.h"
-
-/// Input parameters for b2TimeOfImpact
-struct b2TOIInput
-{
-	b2DistanceProxy proxyA;
-	b2DistanceProxy proxyB;
-	b2Sweep sweepA;
-	b2Sweep sweepB;
-	float32 tMax;		// defines sweep interval [0, tMax]
-};
-
-// Output parameters for b2TimeOfImpact.
-struct b2TOIOutput
-{
-	enum State
-	{
-		e_unknown,
-		e_failed,
-		e_overlapped,
-		e_touching,
-		e_separated
-	};
-
-	State state;
-	float32 t;
-};
-
-/// Compute the upper bound on time before two shapes penetrate. Time is represented as
-/// a fraction between [0,tMax]. This uses a swept separating axis and may miss some intermediate,
-/// non-tunneling collision. If you change the time interval, you should call this function
-/// again.
-/// Note: use b2Distance to compute the contact point and normal at the time of impact.
-void b2TimeOfImpact(b2TOIOutput* output, const b2TOIInput* input);
-
-#endif

web/static/doc_controle/tp/Box2D/src/Box2D/Common/b2BlockAllocator.h

-/*
-* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
-*
-* 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_BLOCK_ALLOCATOR_H
-#define B2_BLOCK_ALLOCATOR_H
-
-#include "Box2D/Common/b2Settings.h"
-
-const int32 b2_chunkSize = 16 * 1024;
-const int32 b2_maxBlockSize = 640;
-const int32 b2_blockSizes = 14;
-const int32 b2_chunkArrayIncrement = 128;
-
-struct b2Block;
-struct b2Chunk;
-
-/// This is a small object allocator used for allocating small
-/// objects that persist for more than one time step.
-/// See: http://www.codeproject.com/useritems/Small_Block_Allocator.asp
-class b2BlockAllocator
-{
-public:
-	b2BlockAllocator();
-	~b2BlockAllocator();
-
-	/// Allocate memory. This will use b2Alloc if the size is larger than b2_maxBlockSize.
-	void* Allocate(int32 size);
-
-	/// Free memory. This will use b2Free if the size is larger than b2_maxBlockSize.
-	void Free(void* p, int32 size);
-
-	void Clear();
-
-private:
-
-	b2Chunk* m_chunks;
-	int32 m_chunkCount;
-	int32 m_chunkSpace;
-
-	b2Block* m_freeLists[b2_blockSizes];
-
-	static int32 s_blockSizes[b2_blockSizes];
-	static uint8 s_blockSizeLookup[b2_maxBlockSize + 1];
-	static bool s_blockSizeLookupInitialized;
-};
-
-#endif