static void
click(int button, int state, int x, int y)
{
if(button == GLUT_LEFT_BUTTON){
if(state == GLUT_DOWN){
cpVect point = mouseToSpace(x, y);
cpShape *shape = cpSpacePointQueryFirst(space, point, GRABABLE_MASK_BIT, CP_NO_GROUP);
if(shape){
cpBody *body = shape->body;
mouseJoint = cpPivotJointNew2(mouseBody, body, cpvzero, cpBodyWorld2Local(body, point));
mouseJoint->maxForce = 50000.0f;
mouseJoint->errorBias = cpfpow(1.0f - 0.15f, 60.0f);
cpSpaceAddConstraint(space, mouseJoint);
}
} else if(mouseJoint){
cpSpaceRemoveConstraint(space, mouseJoint);
cpConstraintFree(mouseJoint);
mouseJoint = NULL;
}
}
}
static void
mouse(int x, int y)
{
ChipmunkDemoMouse = mouseToSpace(x, y);
}
static void
mouse(int x, int y)
{
mousePoint = mouseToSpace(x, y);
}
