koobas.hobune.stream
Raycast Hover
I have a ufo that hovers but I want to use raycast so the player can hide from it.. sadly I dont know that much can someone help me make it so that it only follows within the ray cast?
var verticalDistance : float; // distance above player to hover
var maxMovementSpeed : float; // units per second
var target : Transform; // transform to hover over
// JavaScript example.
function Update () {
// Bit shift the index of the layer (8) to get a bit mask
var layerMask = 1 << 11;
// This would cast rays only against colliders in layer 8.
// But instead we want to collide against everything except layer 8. The ~ operator does this, it inverts a bitmask.
layerMask = ~layerMask;
var hit : RaycastHit;
// Does the ray intersect any objects excluding the player layer
if (Physics.Raycast (transform.position, transform.TransformDirection (Vector3.down), hit, Mathf.Infinity, layerMask)) {
Debug.DrawRay (transform.position, transform.TransformDirection (Vector3.down) * hit.distance, Color.yellow);
print ("Did Hit");
} else {
Debug.DrawRay (transform.position, transform.TransformDirection (Vector3.downd) *1000, Color.white);
print ("Did not Hit");
}
}
function OnTriggerStay() {
var movement = target.position - transform.position;
movement.y -= verticalDistance;
// Move either at movement speed or directly to desired position, whichever's smaller. Prevents jittering hopefully.
transform.position += Vector3.Min( movement * Time.deltaTime, movement.normalized * maxMovementSpeed * Time.deltaTime );
}
I would not do this in Update()...
// Bit shift the index of the layer (8) to get a bit mask
var layer$$anonymous$$ask = 1 << 11;
// This would cast rays only against colliders in layer 8.
// But ins$$anonymous$$d we want to collide against everything except layer 8. The ~ operator does this, it inverts a bitmask.
layer$$anonymous$$ask = ~layer$$anonymous$$ask;
as it seems needlessly complicated/repeated. Ins$$anonymous$$d, why not do this (add around line 3)
var layer$$anonymous$$ask : Layer$$anonymous$$ask;
which will expose a simple dropdown button in the Editor that you can use to check/uncheck the layers the Raycast interacts with.
I think what you want the UFO to do is the code in the OnTrigger, so move that into the if(Raycast) block.
