koobas.hobune.stream
Trying to use transform.forward properly
I've been trying to use Transform.forward properly but I feel like I'm not using something properly with its interaction with raycast. The object moves forward when I rotate it, but it doesn't seem like raycast is detecting the object in front of my movement. Here is my code:
using UnityEngine;
using System.Collections;
public class Directional : MonoBehaviour {
// Use this for initialization
void Start () {
}
// Update is called once per frame
void Update () {
Vector3 fwd = transform.InverseTransformDirection(transform.forward);
if(Input.GetKeyDown(KeyCode.LeftArrow))
transform.Rotate(new Vector3(0, -10, 0));
if(Input.GetKeyDown(KeyCode.RightArrow))
transform.Rotate(new Vector3(0, 10, 0));
if(Input.GetKeyDown(KeyCode.UpArrow))
transform.Translate(fwd);
if (Physics.Raycast(transform.position, fwd, 200))
print("There is something in front of the object!");
}
}
Transform.forward is the same as Transform.TransformDirection(Vector3.forward). So since you are calling the inverse of transform direction on forward, you're just getting back Vector3.forward
Transform.Translate() (by default) is local coordinates. You can make it global coordinates by adding the Space.World. See the reference for Transform.Translate(). Physics.Raycast() uses world coordinates. For a transform, local forward will be 'Vector3.forward', and world forward will be 'transform.forward'. So for your code line 19 could be:
transform.Translate(Vector3.forward);
And line 21 could be:
if (Physics.Raycast(transform.position, transform.forward, 200))
And 'fwd' is no longer used.
