Hello all,

First let me say I'm an animator by trade, so please excuse my code :) I have an issue with a simple 2d scroller I need help with. I have my hero and he has 2 types of attacks, a melee attack and a ranged attack. Enemies will spawn from behind and in front of the hero character. I use Vector3.Dot to get whether the enemy is behind or not. However when the character passes the origin these values flip. Also if I use the parent of the enemy and the gameObject (rotates to face character) my values are also flipped. If I use the parents of both objects, it seems to work fine but I can never turn to an attacker that is behind the character and deal damage. I am guessing that this might be a "space issue".

The hero and enemies are setup like this

Prefab EmptyGameObject CharacterRig

I move the characters by moving the prefab object. I rotate the characters to look in either direction by rotating the EmptyGameObject.

Have I gone about this the wrong way? I thought about using the character controller but I figured these guys were so simple, I dont need the ability to jump, that not using it would be the better option. It works when the character is in negative x, but when I cross into positive x, it doesn't work because the values have flipped.

I have declared enemy as a JavaScript array, and I populate it with game objects that have a tag of BadGuy. The variable myPar is the parent of the emptyGameobject for the hero.

Here is my code for checking if an enemy is in front or behind.

    for(var i=0; i < enemy.length; i++)
    {
        if(enemy[i] != null)
        //check if there are any enemies
        {
            var enemyScript : enemyControl;
            enemyScript = enemy[i].GetComponent(enemyControl);
            eObj = enemy[i].transform.Find("Enemy");
            //check the distnce from the player and verify the enemy is attacking
            var myDist : float = (Vector3.Distance(myPar.transform.position, enemy[i].transform.position));
            var me = myPar.transform.TransformDirection(myPar.transform.position.x, myPar.transform.position.y,myPar.transform.position.z);
            var whichEnemy = (eObj.transform.position - myPar.transform.position);
            if(myDist < enemyScript.attackRange && enemyScript.eHealth > 0 )
            //if enemy in range deal damage and move back
            {
                print(Vector3.Dot(me, whichEnemy));
                if((Vector3.Dot(me, whichEnemy)) > 0)
                {
                    enemyScript.eHealth -= dam; 
                }

            }
        }
        else
        {
            enemy.RemoveAt(i);
        }
    }

Any help would be appreciated! Thanks! Alex