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#1

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#2

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This is the scrnshot of my gizmo setup. I decided that a 7.5m radius would be for the ranged attack range, because after playing diablo 3 and torchlight 2 I realised that, the range for spell casters is fairly large.

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#3

I found that regular spheres were easier to see when terrain isn’t flat. Alpha is reduced to .25f on the colors.

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#4

I’d already added an attack range and an ‘aggro range’ (rather than chase range - I’ll explain below).

But rather than simply subtracting a vector to the player, I wanted my enemies to be able to attack my allies too - so I used Physics.OverlapSphere and checked a layermask for targetable objects that were within that OverlapSphere.

private Transform FindTargetInRange(float aggroRange)
{  
    // See what are in range
    Collider[] opponentsInRange = Physics.OverlapSphere(this.transform.position, aggroRange, opponentLayerMask);

    if (opponentsInRange.Length == 0) { return null; }

    // Find closest in range
    float closestRange = 0;
    Collider closestTarget = null;
    foreach (var opponentInRange in opponentsInRange)
    {
        if (target != null && opponentInRange.gameObject == target.gameObject)  
        {  // keep current target if still in range
            return opponentInRange.transform;
        }
        float currentRange = (transform.position - opponentInRange.transform.position).magnitude;
        if (closestTarget == null || currentRange < closestRange)
        {
            closestTarget = opponentInRange;
            closestRange = currentRange;
        }
    }
    return closestTarget.transform;
}

This makes it work differently to Ben’s code in that it uses this to identify a target and then only if identified, will it move to and attack if in attack range. So, if I have the attack range greater than the chase(aggro) range - then mine will not attack if the player is in the attack range but NOT in the aggro range… if you follow.

I think I’m ok with that.

However, my enemy script is getting a but unwieldy now (especially since I added a lot of code for formations). I think it should really be a generic movement script for all AI friendlies, enemies, neutral etc… and maybe have attacking in a separatescript.

I’m just not too sure if I want to depart too far from Ben’s architecture yet in case it becomes difficult to follow in future lectures.

It’s definitely getting interesting!

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