Added Feel plugin

Assets/External/Feel/MMTools/Foundation/MMAI/AIState.cs

@@ -0,0 +1,156 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace MoreMountains.Tools
+{
+	[System.Serializable]
+	public class AIActionsList : MMReorderableArray<AIAction>
+	{
+	}
+	[System.Serializable]
+	public class AITransitionsList : MMReorderableArray<AITransition>
+	{
+	}
+	
+	public struct AIStateEvent
+	{
+		public AIBrain Brain;
+		public AIState ExitState;
+		public AIState EnterState;
+
+		public AIStateEvent(AIBrain brain, AIState exitState, AIState enterState)
+		{
+			Brain = brain;
+			ExitState = exitState;
+			EnterState = enterState;
+		}
+
+		static AIStateEvent e;
+		public static void Trigger(AIBrain brain, AIState exitState, AIState enterState)
+		{
+			e.Brain = brain;
+			e.ExitState = exitState;
+			e.EnterState = enterState;
+			MMEventManager.TriggerEvent(e);
+		}
+	}
+
+	/// <summary>
+	/// 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_".
+	/// </summary>
+	[System.Serializable]
+	public class AIState 
+	{
+		/// the name of the state (will be used as a reference in Transitions
+		public string StateName;
+
+		[MMReorderableAttribute(null, "Action", null)]
+		public AIActionsList Actions;
+		[MMReorderableAttribute(null, "Transition", null)]
+		public AITransitionsList Transitions;/*
+
+        /// a list of actions to perform in this state
+        public List<AIAction> Actions;
+        /// a list of transitions to evaluate to exit this state
+        public List<AITransition> Transitions;*/
+
+		protected AIBrain _brain;
+
+		/// <summary>
+		/// Sets this state's brain to the one specified in parameters
+		/// </summary>
+		/// <param name="brain"></param>
+		public virtual void SetBrain(AIBrain brain)
+		{
+			_brain = brain;
+		}
+                	
+		/// <summary>
+		/// On enter state we pass that info to our actions and decisions
+		/// </summary>
+		public virtual void EnterState()
+		{
+			foreach (AIAction action in Actions)
+			{
+				action.OnEnterState();
+			}
+			foreach (AITransition transition in Transitions)
+			{
+				if (transition.Decision != null)
+				{
+					transition.Decision.OnEnterState();
+				}
+			}
+		}
+
+		/// <summary>
+		/// On exit state we pass that info to our actions and decisions
+		/// </summary>
+		public virtual void ExitState()
+		{
+			foreach (AIAction action in Actions)
+			{
+				action.OnExitState();
+			}
+			foreach (AITransition transition in Transitions)
+			{
+				if (transition.Decision != null)
+				{
+					transition.Decision.OnExitState();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Performs this state's actions
+		/// </summary>
+		public virtual void PerformActions()
+		{
+			if (Actions.Count == 0) { return; }
+			for (int i=0; i<Actions.Count; i++) 
+			{
+				if (Actions[i] != null)
+				{
+					Actions[i].PerformAction();
+				}
+				else
+				{
+					Debug.LogError("An action in " + _brain.gameObject.name + " on state " + StateName + " is null.");
+				}
+			}
+		}
+
+		/// <summary>
+		/// Tests this state's transitions
+		/// </summary>
+		public virtual void EvaluateTransitions()
+		{
+			if (Transitions.Count == 0) { return; }
+			for (int i = 0; i < Transitions.Count; i++) 
+			{
+				if (Transitions[i].Decision != null)
+				{
+					if (Transitions[i].Decision.Decide())
+					{
+						Transitions[i].LastDecisionEvaluation = true;
+						if (!string.IsNullOrEmpty(Transitions[i].TrueState))
+						{
+							_brain.TransitionToState(Transitions[i].TrueState);
+							break;
+						}
+					}
+					else
+					{
+						Transitions[i].LastDecisionEvaluation = false;
+						if (!string.IsNullOrEmpty(Transitions[i].FalseState))
+						{
+							_brain.TransitionToState(Transitions[i].FalseState);
+							break;
+						}
+					}
+				}                
+			}
+		}        
+	}
+}