physics_joint_delete(joint)
| Argument | Description |
|---|---|
| joint | The index of the joint that you wish to delete |
Returns: N/A
Once two instances with physics representations have been bound
by a joint, this can be deleted again at any time. Normally this
will happen automatically when one of the two instances is
destroyed, or when the room ends, but there are times when you may
wish to do this manually. In those cases you would use this
function.
It should also be noted that whenever an instance that is part of a
gear joint is
destroyed, the gear joint should be deleted using this function
before any of the instances involved in forming the gear
(but the remaining joints will be deleted automatically), for
example in the destroy event of the instance.
var reactionForceX, reactionForceY,
reactionForce;
if shipJoint
{
reactionForceX =
physics_joint_get_value(shipJoint, phy_joint_reaction_force_x);
reactionForceY =
physics_joint_get_value(shipJoint, phy_joint_reaction_force_x);
reactionForce = sqrt((reactionForceX +
reactionForceX) + (reactionForceY + reactionForceY));
if reactionForce > 2
{
physics_joint_delete(shipJoint);
shipJoint = -1;
}
}
The above code checks to see if the variable "shipJoint" holds a joint index and if it does, it then calculates the force being applied to that joint using the two constants. Finally, if the total force is greater than 2, the joint is deleted.