koobas.hobune.stream
IngoreCollision() does not work
I know this is a really basic question, but it is stumping me and I can't find an answer online anywhere.
So I have an item -- just a cube with a box collider and rigidbody reshaped to look like a tablet with some writing on it -- that I want to 'pick up.' I put a sphere collider on the character to detect when I'm near the object via triggers. When I do, I then put the item into the character's hand. Here is the entire script in question:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class HoldItem : MonoBehaviour
{
public GameObject item=null;
private Animator heroAnim;
private Transform objectSpot;
private void Awake()
{
heroAnim = GetComponent<Animator>();
objectSpot = this.transform.Find("mixamorig:Hips/mixamorig:Spine/mixamorig:Spine1/mixamorig:Spine2/mixamorig:RightShoulder/mixamorig:RightArm/mixamorig:RightForeArm/mixamorig:RightHand/ObjectSpot");
if (item != null)
ReceiveItem(item, true);
}
private void ReceiveItem(GameObject newItem, bool force = false)
{
if (force || item == null)
{
Rigidbody rb = newItem.GetComponent<Rigidbody>();
if (rb == null)
Debug.Log("Item has no rigidbody.");
Physics.IgnoreCollision(newItem.GetComponent<Collider>(), gameObject.GetComponent<Collider>());
//Physics.IgnoreLayerCollision(8, 9);
rb.isKinematic = true;
rb.transform.SetParent(objectSpot);
rb.transform.localPosition = Vector3.zero;
rb.gameObject.transform.localPosition = Vector3.zero;
item = newItem;
}
}
private void OnTriggerEnter(Collider other)
{
if (other.tag == "Holdable Item")
ReceiveItem(other.gameObject);
}
}
When I do this, the cube object is still asserting physics on the character and the character starts to slide away from the cube held in his hand. I am calling to ignore the collision, so I don't know what this would be. I've tried also grabbing the trigger sphere collider and ignore it and that doesn't help.
However, note the commented-out IgnoreLayerCollision() call. It works just fine if I use it. But I really wanted to specifically turn off physics collisions for the character and the object in his hand, not for the whole layer.
