b2_time_step.h

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// MIT License

// Copyright (c) 2019 Erin Catto

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#ifndef B2_TIME_STEP_H
#define B2_TIME_STEP_H

#include "b2_api.h"
#include "b2_math.h"

struct B2_API b2Profile
{
        float step;
        float collide;
        float solve;
        float solveInit;
        float solveVelocity;
        float solvePosition;
        float broadphase;
        float solveTOI;
};

struct B2_API b2TimeStep
{
        float dt;                       // time step
        float inv_dt;           // inverse time step (0 if dt == 0).
        float dtRatio;  // dt * inv_dt0
        int32 velocityIterations;
        int32 positionIterations;
        bool warmStarting;
};

struct B2_API b2Position
{
        b2Vec2 c;
        float a;
};

struct B2_API b2Velocity
{
        b2Vec2 v;
        float w;
};

struct B2_API b2SolverData
{
        b2TimeStep step;
        b2Position* positions;
        b2Velocity* velocities;
};

#endif