cpDampedSpring.h

/* Copyright (c) 2013 Scott Lembcke and Howling Moon Software
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cpBool cpConstraintIsDampedSpring(const cpConstraint *constraint);

typedef cpFloat (*cpDampedSpringForceFunc)(cpConstraint *spring, cpFloat dist);

cpDampedSpring* cpDampedSpringAlloc(void);
cpDampedSpring* cpDampedSpringInit(cpDampedSpring *joint, cpBody *a, cpBody *b, cpVect anchorA, cpVect anchorB, cpFloat restLength, cpFloat stiffness, cpFloat damping);
cpConstraint* cpDampedSpringNew(cpBody *a, cpBody *b, cpVect anchorA, cpVect anchorB, cpFloat restLength, cpFloat stiffness, cpFloat damping);

cpVect cpDampedSpringGetAnchorA(const cpConstraint *constraint);
void cpDampedSpringSetAnchorA(cpConstraint *constraint, cpVect anchorA);

cpVect cpDampedSpringGetAnchorB(const cpConstraint *constraint);
void cpDampedSpringSetAnchorB(cpConstraint *constraint, cpVect anchorB);

cpFloat cpDampedSpringGetRestLength(const cpConstraint *constraint);
void cpDampedSpringSetRestLength(cpConstraint *constraint, cpFloat restLength);

cpFloat cpDampedSpringGetStiffness(const cpConstraint *constraint);
void cpDampedSpringSetStiffness(cpConstraint *constraint, cpFloat stiffness);

cpFloat cpDampedSpringGetDamping(const cpConstraint *constraint);
void cpDampedSpringSetDamping(cpConstraint *constraint, cpFloat damping);

cpDampedSpringForceFunc cpDampedSpringGetSpringForceFunc(const cpConstraint *constraint);
void cpDampedSpringSetSpringForceFunc(cpConstraint *constraint, cpDampedSpringForceFunc springForceFunc);