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/*
* 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

Version data entries

6 entries across 6 versions & 1 rubygems

Version Path
reflexion-0.1.12 src/physics/Box2D/Collision/b2TimeOfImpact.h
reflexion-0.1.11 src/physics/Box2D/Collision/b2TimeOfImpact.h
reflexion-0.1.10 src/physics/Box2D/Collision/b2TimeOfImpact.h
reflexion-0.1.9.1 src/physics/Box2D/Collision/b2TimeOfImpact.h
reflexion-0.1.9 src/physics/Box2D/Collision/b2TimeOfImpact.h
reflexion-0.1.8 src/physics/Box2D/Collision/b2TimeOfImpact.h