callbacks.h

// SPDX-FileCopyrightText: 2023 Erin Catto
// SPDX-License-Identifier: MIT
 
#pragma once
 
#include "box2d/api.h"
#include "box2d/id.h"
#include "box2d/types.h"
 
typedef struct b2Manifold b2Manifold;
 
typedef bool b2PreSolveFcn(b2ShapeId shapeIdA, b2ShapeId shapeIdB, b2Manifold* manifold, int32_t color, void* context);
 
BOX2D_API void b2World_SetPreSolveCallback(b2WorldId worldId, b2PreSolveFcn* fcn, void* context);
 
typedef bool b2QueryResultFcn(b2ShapeId shapeId, void* context);
 
typedef float b2RayResultFcn(b2ShapeId shapeId, b2Vec2 point, b2Vec2 normal, float fraction, void* context);
 
typedef struct b2RayResult
{
    b2ShapeId shapeId;
    b2Vec2 point;
    b2Vec2 normal;
    float fraction;
    bool hit;
} b2RayResult;
 
static const b2RayResult b2_emptyRayResult = {{-1, -1, 0}, {0.0f, 0.0f}, {0.0f, 0.0f}, 0.0f, false};