koobas.hobune.stream
Raycast Vision
Hello,
I have made a script that allows a Enemy to find a player thats within a circle around it then chase the player until it enters its Range which is a float of 15. It works very smoothly but has one big problem. If the players standing behind a wall or tree then the enemy can attack through it.
I had an idea that the Enemy could use raycast for vision and if it can see the player clearly then it will attack. If the player is behind a wall then the Enemy would find the closest way around it and simply run around.
Anyways I am really bad at raycast and It would be really helpful if someone could just give me a script to get me started.
Well here's a basic raycast you could modify:
Javascript:
function Update () {
var fwd = transform.TransformDirection (Vector3.forward);
if (Physics.Raycast (transform.position, fwd, 10)) {
print ("There is something in front of the object!");
}
}
C#:
using UnityEngine;
using System.Collections;
public class example : MonoBehaviour {
void Update() {
Vector3 fwd = transform.TransformDirection(Vector3.forward);
if (Physics.Raycast(transform.position, fwd, 10))
print("There is something in front of the object!");
}
}
Then you could make the raycast check for the object by doing (Javascript)
if (Physics.Raycast (transform.position,hitinfo,fwd, 10)) {
if (hitinfo.transform.tag == "Player")
{
//do attack
}
}
No problem. Could you please thumbs up my answer? Thanks! I hope I can be of more help in the future.
I actually see a problem. I get : No appropriate version of 'UnityEngine.Physics.Raycast' for the argument list '(UnityEngine.Vector3, UnityEngine.Transform, UnityEngine.Vector3, int)' was found.
Is hitinfo supposed to be a RaycastHit or a Transform?
HitInfo is a RaycastHit. For example (are you using Javascript or C#?):
var hitInfo: RaycastHit = new RaycastHit();
or RaycastHit hitInfo = new RaycastHit();
Unity's Documentation On Raycast, it has a few examples that you can use to get started.
You may also need to look at Raycast Layer Mask for more advance raycast behaviour.
