//spawn the an unit instance of given the prefab
private UnitAI SpawnUnit(GameObject prefab, Vector3 spawnPos, Quaternion rot, string name = "")
{
//instantiate the unit, assign the layer and name
//~ GameObject unitObj=(GameObject)Instantiate(prefab, spawnPos, rot);
GameObject unitObj = ObjectPoolManager.Spawn(prefab, spawnPos, rot);
unitObj.layer = TDS.GetLayerAIUnit();
unitObj.name = name;
//get the UnitAI instance and assign target
UnitAI unitInstance = unitObj.GetComponent <UnitAI>();
unitInstance.target = GameControl.GetPlayer();
//if(anchorToPoint) unitInstance.SetAnchorPoint(transform, anchorRadius); //not in use atm
//override the unit default hitpoint if overrideHitPoint is enabled
if (overrideHitPoint)
{
unitInstance.OverrideHitPoint(spawnHP, overrideHPMode);
}
AddUnit(unitInstance); //track unit
return(unitInstance);
}
public override void Awake()
{
base.Awake();
//initiation
thisObj.layer = TDS.GetLayerAIUnit();
hostileUnit = true;
//setup the cooldown
if (!randFirstAttackDelay)
{
currentCD = firstAttackDelay;
}
else
{
currentCD = Random.Range(0, firstAttackDelay);
}
//make sure the setting for range attack is correct
if (enableRangeAttack)
{
if (shootPointList.Count == 0)
{
shootPointList.Add(thisT); //make sure there a valid shoot point
}
if (shootObject == null)
{
Debug.LogWarning("shoot object unassigned for range attack unit, attack disabled", thisT);
enableRangeAttack = false;
}
}
//if using navmeshagent
agent = thisObj.GetComponent <NavMeshAgent>();
if (agent != null)
{
agent.stoppingDistance = brakeRange;
agent.speed = moveSpeed;
}
evadeCD = evadeCooldown;
stopCD = stopCooldown;
}
//aim split, the split shootobject will try to aim at unit in range
void SplitAim(Collider col)
{
//first all all target in range
LayerMask mask = 1 << TDS.GetLayerAIUnit();
Collider[] cols = Physics.OverlapSphere(thisT.position, splitRange, mask);
if (cols.Length == 0)
{
Debug.Log("no target in range");
return;
}
//make sure we dont aim at the collider we hit in th first place again
List <Collider> colList = cols.ToList();
for (int i = 0; i < colList.Count; i++)
{
if (colList[i] == col)
{
colList.RemoveAt(i); i -= 1;
}
}
//randomly reduce the possible target so we dont exceed the split count
List <Transform> targetList = new List <Transform>();
for (int i = 0; i < Mathf.Min(colList.Count, splitCount); i++)
{
int rand = Random.Range(0, colList.Count);
targetList.Add(colList[i].transform);
colList.RemoveAt(rand);
}
//not aim at each target and fire another shootobject at them
for (int i = 0; i < targetList.Count; i++)
{
Quaternion shootRot = Quaternion.LookRotation(targetList[i].position - thisT.position);
FireSplitSO(shootRot);
}
}