private void Start()
{
fsm = new FSM("Cub AI");
FleeState = fsm.AddState("FleeState");
FollowState = fsm.AddState("FollowState");
FleeAction = new FleeAction(FleeState);
FollowAction = new FollowAction(FollowState);
FollowState.AddAction(FollowAction);
FleeState.AddAction(FleeAction);
FollowState.AddTransition("ToFlee", FleeState);
FleeState.AddTransition("ToFollow", FollowState);
FollowAction.Init(this.transform, .1f, gameObject);
FleeAction.Init(this.transform, .1f, gameObject);
fsm.Start("FollowState");
}
//The main loop for monster AI! This assumes
public override IEnumerator DetermineAction()
{
if (monster.view == null)
{
Debug.LogError("Monster did not have a view available! If this happened during real gameplay, we have a problem. Eating its turn to be safe.");
monster.UpdateLOS();
nextAction = new WaitAction();
yield break;
}
monster.view.CollectEntities(Map.current);
List <Monster> enemies = monster.view.visibleMonsters.Where(x => (x.faction & monster.faction) == 0).ToList();
if (enemies.Count == 0)
{
//Standard behavior
//TODO: If someone is offering actions, look at their action and maybe take it
//Else, try to go exploring!
//Else, just wait?
Debug.Log("Monster is just waiting!");
nextAction = new WaitAction();
yield break;
}
else
{
//We're majorly in combat!
//Options
//0 - Flee (Default)
//1 - Fight
//2 - Spell
float flee = fleeQuery.Evaluate(monster, monster.view.visibleMonsters, null, null);
float approach = approachQuery.Evaluate(monster, monster.view.visibleMonsters, null, null);
(int spellIndex, float spellValue) = (-1, -1);
if (monster.abilities)
{
(spellIndex, spellValue) = monster.abilities.GetBestAbility();
}
//TODO: Determine if any items would be a good fit
List <int> bestChoice = new List <int> {
0
};
float bestVal = flee;
//Fighting check
if (approach > bestVal)
{
bestChoice.Clear();
bestChoice.Add(1);
bestVal = approach;
}
if (approach == bestVal)
{
bestChoice.Add(1);
}
//Ability check
if (spellValue > bestVal)
{
bestChoice.Clear();
bestChoice.Add(2);
bestVal = spellValue;
}
if (spellValue == bestVal)
{
bestChoice.Add(2);
}
int choice = bestChoice[Random.Range(0, bestChoice.Count)];
switch (bestChoice[Random.Range(0, bestChoice.Count)])
{
case 0:
Debug.Log("Should flee!!");
nextAction = new FleeAction();
break;
case 1:
Debug.Log("Should Attack!!");
enemies = enemies.OrderBy(x => Vector2Int.Distance(monster.location, x.location)).ToList();
nextAction = new PathfindAction(enemies[0].location);
break;
case 2:
Debug.Log($"Should use spell {monster.abilities[spellIndex].displayName}");
nextAction = new WaitAction();
break;
default:
Debug.LogError($"Can't make choice {choice}, so waiting instead");
nextAction = new WaitAction();
break;
}
}
}
