Example #1
0
    public Transform findCurrentTarget()
    {
        //find all potential targets (enemies of this character)
        GameObject[] enemies = inspector.getUnitsByTag(attackTag);
        Transform    target  = null;

        //if we want this character to communicate with his allies
        if (spread)
        {
            //get all enemies
            List <GameObject> availableEnemies = enemies.ToList();
            int count = 0;

            //make sure it doesn't get stuck in an infinite loop
            while (count < 300)
            {
                //for all enemies
                for (int i = 0; i < enemies.Length; i++)
                {
                    //distance between character and its nearest enemy
                    float closestDistance = Mathf.Infinity;

                    foreach (GameObject potentialTarget in availableEnemies)
                    {
                        //check if there are enemies left to attack and check per enemy if its closest to this character
                        if (Vector3.Distance(transform.position, potentialTarget.transform.position) < closestDistance && potentialTarget != null && !target.GetComponent <AgentScript>().dead)
                        {
                            //if this enemy is closest to character, set closest distance to distance between character and enemy
                            closestDistance = Vector3.Distance(transform.position, potentialTarget.transform.position);
                            target          = potentialTarget.transform;
                        }
                    }

                    //if it is valid, return this target
                    if (target && canAttack(target) && !target.GetComponent <AgentScript>().dead)
                    {
                        return(target);
                    }
                    else
                    {
                        //if it's not, remove it from the list and try again
                        availableEnemies.Remove(target.gameObject);
                    }
                }

                //after checking all enemies, allow one more ally to also attack the same enemy and try again
                maxAlliesPerEnemy++;
                availableEnemies.Clear();
                availableEnemies = enemies.ToList();

                count++;
            }

            //show a loop error
            Debug.LogError("Infinite loop");
        }
        else
        {
            //if we're using the simple method:
            float closestDistance = Mathf.Infinity;

            foreach (GameObject potentialTarget in enemies)
            {
                //check if there are enemies left to attack and check per enemy if its closest to this character
                if (Vector3.Distance(transform.position, potentialTarget.transform.position) < closestDistance && potentialTarget != null)
                {
                    //if this enemy is closest to character, set closest distance to distance between character and enemy
                    closestDistance = Vector3.Distance(transform.position, potentialTarget.transform.position);
                    target          = potentialTarget.transform;
                }
            }

            //check if there's a target and return it
            if (target)
            {
                return(target);
            }
        }

        //otherwise return null
        return(null);
    }