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Question by BilboStabbins · Feb 02, 2013 at 03:59 AM · directionforwardlocalposition

Reset local object to original forward direction after facing another direction

Hey,

I have a script that changes the forward direction of a bullet spawner object depending on whether the Player has locked onto an enemy. The conditions are simple;

  1. If an enemy IS targeted - set forward direction of spawner towards enemy's position.

  2. If an enemy IS NOT targeted face forward direction again - i.e. shoot ahead as normal.

The issue I'm having is that when the Player rotates away from his starting position (which points along the World Vector3.forward to begin with), the spawner continues to fire in that same direction.

If anyone can lend a hand that would be great. I seem to recall something about a 'Relative forward' calculation to find the forward direction of local objects (BTW, it's attached to the Player, as expected).

The relevant code is below - Thanks

 // Access the ClosestEnemy script and check whether the we have an enemy targeted.
 if (ClosestEnemyScript_ref.EnemyTargetted)
 {
     // Debug.Log("ENEMY TARGETTED");
 
     // Calculate the relative position of the Player to the Enemy and store in bulletDirection (direction)
     bulletDirectionR = (ClosestEnemyScript_ref.EnemyPosition - BulletSpawnerR_obj.transform.position).normalized;
 
 }
 
 // Otherwise, no enemy is target and so we just shoot forward
 else
 {
     // Debug.Log("NO ENEMY TARGETTED");

     // Hmmmm ??
     bulletDirectionR = Vector3.forward;
 }
 
 BulletSpawnerR_obj.forward = bulletDirectionR;
 
 }
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avatar image FL · Feb 02, 2013 at 11:05 PM 0
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Try to rotate the character to make the target be in the character front, so use Transform.TransformDirection(Vector3.forward) as location for instantiation. Before you make the target, just save the Transform.eulerAngles and use it for your reset.

avatar image Wolfram · Feb 02, 2013 at 11:08 PM 0
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transform.TransformDirection(Vector3.forward) is the same as transform.forward.

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Answer by Wolfram · Feb 02, 2013 at 11:03 PM

Vector3.forward will always be the +Z world axis. Use transform.forward (or myObject.transform.forward respectively) to find the local/"relative" forward axis of any rotated object.

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