/usr/include/chipmunk/constraints/cpConstraint.h is in chipmunk-dev 5.3.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | /* 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.
*/
// TODO: Comment me!
extern cpFloat cp_constraint_bias_coef;
struct cpConstraintClass;
struct cpConstraint;
typedef void (*cpConstraintPreStepFunction)(struct cpConstraint *constraint, cpFloat dt, cpFloat dt_inv);
typedef void (*cpConstraintApplyImpulseFunction)(struct cpConstraint *constraint);
typedef cpFloat (*cpConstraintGetImpulseFunction)(struct cpConstraint *constraint);
typedef struct cpConstraintClass {
cpConstraintPreStepFunction preStep;
cpConstraintApplyImpulseFunction applyImpulse;
cpConstraintGetImpulseFunction getImpulse;
} cpConstraintClass;
typedef struct cpConstraint {
CP_PRIVATE(const cpConstraintClass *klass);
cpBody *a, *b;
cpFloat maxForce;
cpFloat biasCoef;
cpFloat maxBias;
cpDataPointer data;
} cpConstraint;
#ifdef CP_USE_DEPRECATED_API_4
typedef cpConstraint cpJoint;
#endif
void cpConstraintDestroy(cpConstraint *constraint);
void cpConstraintFree(cpConstraint *constraint);
static inline void
cpConstraintActivateBodies(cpConstraint *constraint)
{
cpBody *a = constraint->a; if(a) cpBodyActivate(a);
cpBody *b = constraint->b; if(b) cpBodyActivate(b);
}
static inline cpFloat
cpConstraintGetImpulse(cpConstraint *constraint)
{
return constraint->CP_PRIVATE(klass)->getImpulse(constraint);
}
#define cpConstraintCheckCast(constraint, struct) \
cpAssert(constraint->CP_PRIVATE(klass) == struct##GetClass(), "Constraint is not a "#struct);
#define CP_DefineConstraintGetter(struct, type, member, name) \
static inline type \
struct##Get##name(const cpConstraint *constraint){ \
cpConstraintCheckCast(constraint, struct); \
return ((struct *)constraint)->member; \
} \
#define CP_DefineConstraintSetter(struct, type, member, name) \
static inline void \
struct##Set##name(cpConstraint *constraint, type value){ \
cpConstraintCheckCast(constraint, struct); \
cpConstraintActivateBodies(constraint); \
((struct *)constraint)->member = value; \
} \
#define CP_DefineConstraintProperty(struct, type, member, name) \
CP_DefineConstraintGetter(struct, type, member, name) \
CP_DefineConstraintSetter(struct, type, member, name)
// Built in Joint types
#include "cpPinJoint.h"
#include "cpSlideJoint.h"
#include "cpPivotJoint.h"
#include "cpGrooveJoint.h"
#include "cpDampedSpring.h"
#include "cpDampedRotarySpring.h"
#include "cpRotaryLimitJoint.h"
#include "cpRatchetJoint.h"
#include "cpGearJoint.h"
#include "cpSimpleMotor.h"
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