How to disable collision between the player and the picked up object?-CodePudding

I disabled collision between the player and the pickable objects to prevent jitteriness whenever the picked-up object is colliding with the player while moving.

 public void BreakConnection()

    {
        pickupRB.constraints = RigidbodyConstraints.None;

        currentlyPickedUpObject = null;

        lookObject = null;

        physicsObject.pickedUp = false;

        currentDist = 0;

        Physics.IgnoreLayerCollision(layer1, layer2, false);
    }

    public void PickUpObject()
    {
        Physics.IgnoreLayerCollision(layer1, layer2, true); 

        physicsObject = lookObject.GetComponentInChildren<PhysicsObjects>();

        currentlyPickedUpObject = lookObject;

        // currPicked = true;  

        pickupRB = currentlyPickedUpObject.GetComponent<Rigidbody>();

        pickupRB.constraints = RigidbodyConstraints.FreezeRotation;

        physicsObject.playerInteractions = this;

       
    }

I tried this Physics.IgnoreLayerCollision(layer1, layer2, true); when the object is picked up and Physics.IgnoreLayerCollision(layer1, layer2, false); when it is realised.

However, it is causing unwanted behaviour with other pickable objects. Is there a way to ONLY disable collision between the currentlyPickedUpObject and the player? not all the pickable objects? I need currentlyPickedUpObject to collide with all other objects except the player. please help.

CodePudding user response：

Instead of changing whether layers can affect each other, change the layer of the object, you want to pick up, to another one, which never affects player's layer (as you have done by code or in collision layer matrix).

If your objects are on some important layer (let's say pickable), you could always duplicate your layer (pickableIgnorePlayer). If you have a lot of checks for layers in your code that can be a little tedious, but at the moment I can't see another way (maybe besides implementing own collisions for items).

CodePudding user response：

With the collision matrix you can define by layer with layers collide with which. Check: https://docs.unity3d.com/Manual/LayerBasedCollision.html You can change the layer at runtime so that you set your object to another interaction state, where the layer of the object and the player will not interact anymore, like so: gameObject.layer = 8;