/* Simple test of cpConstraintIsDampedSpring(). */ void test_cpConstraintIsDampedSpring(void) { cpConstraint *isDampedSpring = cpDampedSpringNew(body1, body2, cpv(0,0), cpv(0,0), 1, 1, 1); cpConstraint *isNotDampedSpring = cpGrooveJointNew(body1, body2, cpv(0, 0), cpv(0, 0), cpv(3, 3)); CU_ASSERT(cpConstraintIsDampedSpring(isDampedSpring)); CU_ASSERT_FALSE(cpConstraintIsDampedSpring(isNotDampedSpring)); }
static void DrawConstraint(cpConstraint *constraint, DrawNode *renderer) { cpBody *body_a = cpConstraintGetBodyA(constraint); cpBody *body_b = cpConstraintGetBodyB(constraint); if(cpConstraintIsPinJoint(constraint)) { cpVect a = cpvadd(cpBodyGetPosition(body_a), cpvrotate(cpPinJointGetAnchorA(constraint), cpBodyGetRotation(body_a))); cpVect b = cpvadd(cpBodyGetPosition(body_b), cpvrotate(cpPinJointGetAnchorB(constraint), cpBodyGetRotation(body_b))); renderer->drawDot(cpVert2Point(a), 3.0, CONSTRAINT_COLOR); renderer->drawDot(cpVert2Point(b), 3.0, CONSTRAINT_COLOR); renderer->drawSegment(cpVert2Point(a), cpVert2Point(b), 1.0, CONSTRAINT_COLOR); } else if(cpConstraintIsSlideJoint(constraint)) { cpVect a = cpvadd(cpBodyGetPosition(body_a), cpvrotate(cpSlideJointGetAnchorA(constraint), cpBodyGetRotation(body_a))); cpVect b = cpvadd(cpBodyGetPosition(body_b), cpvrotate(cpSlideJointGetAnchorB(constraint), cpBodyGetRotation(body_b))); renderer->drawDot(cpVert2Point(a), 3.0, CONSTRAINT_COLOR); renderer->drawDot(cpVert2Point(b), 3.0, CONSTRAINT_COLOR); renderer->drawSegment(cpVert2Point(a), cpVert2Point(b), 1.0, CONSTRAINT_COLOR); } else if(cpConstraintIsPivotJoint(constraint)) { cpVect a = cpvadd(cpBodyGetPosition(body_a), cpvrotate(cpPivotJointGetAnchorA(constraint), cpBodyGetRotation(body_a))); cpVect b = cpvadd(cpBodyGetPosition(body_b), cpvrotate(cpPivotJointGetAnchorB(constraint), cpBodyGetRotation(body_b))); renderer->drawDot(cpVert2Point(a), 3.0, CONSTRAINT_COLOR); renderer->drawDot(cpVert2Point(b), 3.0, CONSTRAINT_COLOR); } else if(cpConstraintIsGrooveJoint(constraint)) { cpVect a = cpvadd(cpBodyGetPosition(body_a), cpvrotate(cpGrooveJointGetGrooveA(constraint), cpBodyGetRotation(body_a))); cpVect b = cpvadd(cpBodyGetPosition(body_a), cpvrotate(cpGrooveJointGetGrooveB(constraint), cpBodyGetRotation(body_a))); cpVect c = cpvadd(cpBodyGetPosition(body_b), cpvrotate(cpGrooveJointGetAnchorB(constraint), cpBodyGetRotation(body_b))); renderer->drawDot(cpVert2Point(c), 3.0, CONSTRAINT_COLOR); renderer->drawSegment(cpVert2Point(a), cpVert2Point(b), 1.0, CONSTRAINT_COLOR); } else if(cpConstraintIsDampedSpring(constraint)) { // TODO: uninplemented } else { // printf("Cannot draw constraint\n"); } }