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chipmunk.h
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/
chipmunk.h
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/* Copyright (c) 2007 Scott Lembcke
*
* 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 CHIPMUNK_HEADER
#define CHIPMUNK_HEADER
#ifdef __cplusplus
extern "C" {
#endif
#ifndef CP_ALLOW_PRIVATE_ACCESS
#define CP_ALLOW_PRIVATE_ACCESS 0
#endif
#if CP_ALLOW_PRIVATE_ACCESS == 1
#define CP_PRIVATE(symbol) symbol
#else
#define CP_PRIVATE(symbol) symbol##_private
#endif
void cpMessage(const char *condition, const char *file, int line, int isError, int isHardError, const char *message, ...);
#ifdef NDEBUG
#define cpAssertWarn(condition, ...)
#else
#define cpAssertWarn(condition, ...) if(!(condition)) cpMessage(#condition, __FILE__, __LINE__, 0, 0, __VA_ARGS__)
#endif
#ifdef NDEBUG
#define cpAssertSoft(condition, ...)
#else
#define cpAssertSoft(condition, ...) if(!(condition)) cpMessage(#condition, __FILE__, __LINE__, 1, 0, __VA_ARGS__)
#endif
// Hard assertions are important and cheap to execute. They are not disabled by compiling as debug.
#define cpAssertHard(condition, ...) if(!(condition)) cpMessage(#condition, __FILE__, __LINE__, 1, 1, __VA_ARGS__)
#include "chipmunk_types.h"
/// @defgroup misc Misc
/// @{
/// Allocated size for various Chipmunk buffers
#ifndef CP_BUFFER_BYTES
#define CP_BUFFER_BYTES (32*1024)
#endif
#ifndef cpcalloc
/// Chipmunk calloc() alias.
#define cpcalloc calloc
#endif
#ifndef cprealloc
/// Chipmunk realloc() alias.
#define cprealloc realloc
#endif
#ifndef cpfree
/// Chipmunk free() alias.
#define cpfree free
#endif
typedef struct cpArray cpArray;
typedef struct cpHashSet cpHashSet;
typedef struct cpBody cpBody;
typedef struct cpShape cpShape;
typedef struct cpConstraint cpConstraint;
typedef struct cpCollisionHandler cpCollisionHandler;
typedef struct cpArbiter cpArbiter;
typedef struct cpSpace cpSpace;
#include "cpVect.h"
#include "cpBB.h"
#include "cpSpatialIndex.h"
#include "cpBody.h"
#include "cpShape.h"
#include "cpPolyShape.h"
#include "cpArbiter.h"
#include "constraints/cpConstraint.h"
#include "cpSpace.h"
// Chipmunk 6.0.3
#define CP_VERSION_MAJOR 6
#define CP_VERSION_MINOR 0
#define CP_VERSION_RELEASE 3
/// Version string.
extern const char *cpVersionString;
/// @deprecated
void cpInitChipmunk(void);
/// Calculate the moment of inertia for a circle.
/// @c r1 and @c r2 are the inner and outer diameters. A solid circle has an inner diameter of 0.
cpFloat cpMomentForCircle(cpFloat m, cpFloat r1, cpFloat r2, cpVect offset);
/// Calculate area of a hollow circle.
/// @c r1 and @c r2 are the inner and outer diameters. A solid circle has an inner diameter of 0.
cpFloat cpAreaForCircle(cpFloat r1, cpFloat r2);
/// Calculate the moment of inertia for a line segment.
/// Beveling radius is not supported.
cpFloat cpMomentForSegment(cpFloat m, cpVect a, cpVect b);
/// Calculate the area of a fattened (capsule shaped) line segment.
cpFloat cpAreaForSegment(cpVect a, cpVect b, cpFloat r);
/// Calculate the moment of inertia for a solid polygon shape assuming it's center of gravity is at it's centroid. The offset is added to each vertex.
cpFloat cpMomentForPoly(cpFloat m, int numVerts, const cpVect *verts, cpVect offset);
/// Calculate the signed area of a polygon. A Clockwise winding gives positive area.
/// This is probably backwards from what you expect, but matches Chipmunk's the winding for poly shapes.
cpFloat cpAreaForPoly(const int numVerts, const cpVect *verts);
/// Calculate the natural centroid of a polygon.
cpVect cpCentroidForPoly(const int numVerts, const cpVect *verts);
/// Center the polygon on the origin. (Subtracts the centroid of the polygon from each vertex)
void cpRecenterPoly(const int numVerts, cpVect *verts);
/// Calculate the moment of inertia for a solid box.
cpFloat cpMomentForBox(cpFloat m, cpFloat width, cpFloat height);
/// Calculate the moment of inertia for a solid box.
cpFloat cpMomentForBox2(cpFloat m, cpBB box);
//@}
#ifdef __cplusplus
}
static inline cpVect operator *(const cpVect v, const cpFloat s){return cpvmult(v, s);}
static inline cpVect operator +(const cpVect v1, const cpVect v2){return cpvadd(v1, v2);}
static inline cpVect operator -(const cpVect v1, const cpVect v2){return cpvsub(v1, v2);}
static inline cpBool operator ==(const cpVect v1, const cpVect v2){return cpveql(v1, v2);}
static inline cpVect operator -(const cpVect v){return cpvneg(v);}
#endif
#endif