koobas.hobune.stream
Get local hitpoint
Today is not my day for scripting -.-
I've a problem I can't get out why it wont work. I guess the solution is simple.
I have an object as a child of a parent. The parent is constantly moving around (and the child with the parent, of course).
Now I let rain particles on the objects surface. All I want is the local hitpoint on the surface of that object for around 2 seconds to adding an effect. The particle gives the hitpoint via intersect-message.
Whatever I try, I just get the global position for 2 seconds (doesn't move with the object). So I try to align the HitPosition to the traveling object (script attached to the moving child object):
public var HitPosition: Vector3;
var Hot: boolean;
function Hit(){
Hot = true;
yield WaitForSeconds(2);
Hot = false;
}
function Update(){
if(Hot){
HitPosition = HitPosition + this.gameObject.transform.position;
print("Hit at: " + HitPosition);
Debug.DrawRay(HitPosition, this.transform.forward * 10, Color.red, 2, false);
}
}
Every help is appreciated.
Your workflow should be as the following:
1) Create a local field variable of type Vector3
private Vector3 LocalHitPoint;
2) Take the world space hit point, transform it to local space and store it in the said variable.
LocalHitPoint = transform.InverseTransformPoint(worldHitPoint);
3) Everytime you need the updated point transform the stored local point back to world space
Vector3 worldPoint = transform.TransformPoint(LocalHitPoint);
This way the initial hit point "follows" your game object. The transform reference is the one of the object that got hit by the particle.
