130 lines
4.0 KiB
C#
130 lines
4.0 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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namespace MoreMountains.Tools
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{
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[System.Serializable]
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public class AIActionsList : MMReorderableArray<AIAction>
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{
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}
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[System.Serializable]
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public class AITransitionsList : MMReorderableArray<AITransition>
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{
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}
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/// <summary>
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/// A State is a combination of one or more actions, and one or more transitions. An example of a state could be "_patrolling until an enemy gets in range_".
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/// </summary>
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[System.Serializable]
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public class AIState
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{
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/// the name of the state (will be used as a reference in Transitions
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public string StateName;
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[MMReorderableAttribute(null, "Action", null)]
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public AIActionsList Actions;
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[MMReorderableAttribute(null, "Transition", null)]
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public AITransitionsList Transitions;/*
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/// a list of actions to perform in this state
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public List<AIAction> Actions;
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/// a list of transitions to evaluate to exit this state
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public List<AITransition> Transitions;*/
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protected AIBrain _brain;
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/// <summary>
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/// Sets this state's brain to the one specified in parameters
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/// </summary>
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/// <param name="brain"></param>
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public virtual void SetBrain(AIBrain brain)
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{
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_brain = brain;
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}
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/// <summary>
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/// On enter state we pass that info to our actions and decisions
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/// </summary>
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public virtual void EnterState()
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{
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foreach (AIAction action in Actions)
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{
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action.OnEnterState();
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}
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foreach (AITransition transition in Transitions)
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{
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if (transition.Decision != null)
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{
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transition.Decision.OnEnterState();
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}
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}
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}
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/// <summary>
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/// On exit state we pass that info to our actions and decisions
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/// </summary>
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public virtual void ExitState()
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{
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foreach (AIAction action in Actions)
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{
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action.OnExitState();
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}
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foreach (AITransition transition in Transitions)
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{
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if (transition.Decision != null)
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{
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transition.Decision.OnExitState();
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}
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}
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}
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/// <summary>
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/// Performs this state's actions
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/// </summary>
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public virtual void PerformActions()
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{
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if (Actions.Count == 0) { return; }
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for (int i=0; i<Actions.Count; i++)
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{
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if (Actions[i] != null)
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{
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Actions[i].PerformAction();
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}
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else
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{
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Debug.LogError("An action in " + _brain.gameObject.name + " is null.");
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}
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}
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}
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/// <summary>
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/// Tests this state's transitions
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/// </summary>
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public virtual void EvaluateTransitions()
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{
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if (Transitions.Count == 0) { return; }
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for (int i = 0; i < Transitions.Count; i++)
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{
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if (Transitions[i].Decision != null)
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{
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if (Transitions[i].Decision.Decide())
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{
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if (!string.IsNullOrEmpty(Transitions[i].TrueState))
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{
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_brain.TransitionToState(Transitions[i].TrueState);
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}
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}
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else
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{
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if (!string.IsNullOrEmpty(Transitions[i].FalseState))
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{
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_brain.TransitionToState(Transitions[i].FalseState);
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}
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}
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}
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}
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}
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}
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}
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