Is there a way to call a collision detection method on a node from outside of the node’s script? Example:
let collisionNode = cc.find('/Canvas/CollisionNode')
collisionNode.onBeginContact((contact, selfCollider, otherCollider)=>{
// Collision code in here
});
Is something like this allowed or do I always need to detect collision from inside a script attached to the node itself?
it is allowed, but i don’t think it’s recommended. how do you know to provide the correct contact/selfCollider/otherCollider? because these parameters make sense in architecture of box2d and how it handles collisions (contacts) internally, i don’t think parameters, especially the “contact” one, makes sense outside this system.
from the docs on PhysicsCollider,
PhysicsContact will be generated during begin and end collision as a parameter of the collision callback.
however, if the “collision code” is generic, perhaps you could extract it to a separate method, in a library of sort/base class.
what exactly are you trying to achieve?
detection of the collision should happen on the script itself, however you can setup a event emitter to send a message to all listeners when that collision happens, that’s the standard way you want to deal with cross script communications, send messages to listeners
you could also setup a property on your other script that expecting the type of collisionnode and then use the UI to drag your collision node into your other script
