mirror of https://github.com/axmolengine/axmol.git
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
// MIT License
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// Copyright (c) 2019 Erin Catto
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#ifndef B2_TIME_STEP_H
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#define B2_TIME_STEP_H
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#include "b2_api.h"
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#include "b2_math.h"
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/// Profiling data. Times are in milliseconds.
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struct B2_API b2Profile
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{
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float step;
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float collide;
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float solve;
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float broadphase;
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float solveTOI;
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};
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/// This is an internal structure.
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struct B2_API b2TimeStep
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{
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float dt; // time step
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float inv_dt; // inverse time step (0 if dt == 0).
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float dtRatio; // dt * inv_dt0
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int32 velocityIterations;
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int32 positionIterations;
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int32 particleIterations;
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bool warmStarting;
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};
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/// This is an internal structure.
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struct B2_API b2Position
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{
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b2Vec2 c;
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float a;
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};
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/// This is an internal structure.
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struct B2_API b2Velocity
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{
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b2Vec2 v;
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float w;
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};
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/// Solver Data
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struct B2_API b2SolverData
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{
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b2TimeStep step;
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b2Position* positions;
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b2Velocity* velocities;
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};
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#endif
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