b2TimeStep.h
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00001 /*
00002 * Copyright (c) 2006-2011 Erin Catto http://www.box2d.org
00003 *
00004 * This software is provided 'as-is', without any express or implied
00005 * warranty.  In no event will the authors be held liable for any damages
00006 * arising from the use of this software.
00007 * Permission is granted to anyone to use this software for any purpose,
00008 * including commercial applications, and to alter it and redistribute it
00009 * freely, subject to the following restrictions:
00010 * 1. The origin of this software must not be misrepresented; you must not
00011 * claim that you wrote the original software. If you use this software
00012 * in a product, an acknowledgment in the product documentation would be
00013 * appreciated but is not required.
00014 * 2. Altered source versions must be plainly marked as such, and must not be
00015 * misrepresented as being the original software.
00016 * 3. This notice may not be removed or altered from any source distribution.
00017 */
00018 
00019 #ifndef B2_TIME_STEP_H
00020 #define B2_TIME_STEP_H
00021 
00022 #include <Box2D/Common/b2Math.h>
00023 
00025 struct b2Profile
00026 {
00027         float32 step;
00028         float32 collide;
00029         float32 solve;
00030         float32 solveInit;
00031         float32 solveVelocity;
00032         float32 solvePosition;
00033         float32 broadphase;
00034         float32 solveTOI;
00035 };
00036 
00038 struct b2TimeStep
00039 {
00040         float32 dt;                     // time step
00041         float32 inv_dt;         // inverse time step (0 if dt == 0).
00042         float32 dtRatio;        // dt * inv_dt0
00043         int32 velocityIterations;
00044         int32 positionIterations;
00045         bool warmStarting;
00046 };
00047 
00049 struct b2Position
00050 {
00051         b2Vec2 c;
00052         float32 a;
00053 };
00054 
00056 struct b2Velocity
00057 {
00058         b2Vec2 v;
00059         float32 w;
00060 };
00061 
00063 struct b2SolverData
00064 {
00065         b2TimeStep step;
00066         b2Position* positions;
00067         b2Velocity* velocities;
00068 };
00069 
00070 #endif


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autogenerated on Thu Sep 7 2017 09:27:48