diff options
author | chai <chaifix@163.com> | 2020-09-10 20:30:31 +0800 |
---|---|---|
committer | chai <chaifix@163.com> | 2020-09-10 20:30:31 +0800 |
commit | 639b34294ffc20721c66db46e59e07d9100ac4b8 (patch) | |
tree | 7e1d45b536fa35e9f1559e468ea66fca99524573 /ThirdParty/Box2D/Dynamics/b2TimeStep.h |
*init
Diffstat (limited to 'ThirdParty/Box2D/Dynamics/b2TimeStep.h')
-rw-r--r-- | ThirdParty/Box2D/Dynamics/b2TimeStep.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/ThirdParty/Box2D/Dynamics/b2TimeStep.h b/ThirdParty/Box2D/Dynamics/b2TimeStep.h new file mode 100644 index 0000000..72a4838 --- /dev/null +++ b/ThirdParty/Box2D/Dynamics/b2TimeStep.h @@ -0,0 +1,70 @@ +/* +* Copyright (c) 2006-2011 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_STEP_H +#define B2_TIME_STEP_H + +#include "Box2D/Common/b2Math.h" + +/// Profiling data. Times are in milliseconds. +struct b2Profile +{ + float32 step; + float32 collide; + float32 solve; + float32 solveInit; + float32 solveVelocity; + float32 solvePosition; + float32 broadphase; + float32 solveTOI; +}; + +/// This is an internal structure. +struct b2TimeStep +{ + float32 dt; // time step + float32 inv_dt; // inverse time step (0 if dt == 0). + float32 dtRatio; // dt * inv_dt0 + int32 velocityIterations; + int32 positionIterations; + bool warmStarting; +}; + +/// This is an internal structure. +struct b2Position +{ + b2Vec2 c; + float32 a; +}; + +/// This is an internal structure. +struct b2Velocity +{ + b2Vec2 v; + float32 w; +}; + +/// Solver Data +struct b2SolverData +{ + b2TimeStep step; + b2Position* positions; + b2Velocity* velocities; +}; + +#endif |