Reply To: Having nextState for FSM

[Driiade]

Oh yeah the code is great.

Make sure nextState = null at the end of the function. nextState has to be undefined in Update.

For the moment i don’t use it, i have to refactoring my code for testing if it is robust.

I also have done a ConditionnedAction :

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using System.Collections; using System.Collections.Generic; using UnityEngine; using NodeCanvas.Framework; using ParadoxNotion.Design; using ParadoxNotion.Serialization;   #if UNITY_EDITOR using UnityEditor; #endif   public class ConditionnedAction : ActionTask {       public ConditionList conditionTasks;     public ActionList actionTasks;       public override void OnValidate(ITaskSystem ownerSystem)     {           base.OnValidate(ownerSystem);         SetOwnerSystem(ownerSystem);           if (actionTasks == null)         {             actionTasks = (ActionList)Task.Create(typeof(ActionList), ownerSystem);             actionTasks.executionMode = ActionList.ActionsExecutionMode.ActionsRunInParallel;         }           if (conditionTasks == null)         {             conditionTasks = (ConditionList)Task.Create(typeof(ConditionList), ownerSystem);             conditionTasks.checkMode = ConditionList.ConditionsCheckMode.AllTrueRequired;         }           conditionTasks.OnValidate(ownerSystem);         actionTasks.OnValidate(ownerSystem);           conditionTasks.SetOwnerSystem(this.ownerSystem);         actionTasks.SetOwnerSystem(this.ownerSystem);           foreach (ConditionTask c in conditionTasks.conditions)         {             c.SetOwnerSystem(this.ownerSystem);         }           foreach (ActionTask a in actionTasks.actions)         {             a.SetOwnerSystem(this.ownerSystem);         }     }       public override Task Duplicate(ITaskSystem newOwnerSystem)     {         var newConditionnedAction = (ConditionnedAction)base.Duplicate(newOwnerSystem);         newConditionnedAction.actionTasks = (ActionList)actionTasks.Duplicate(newOwnerSystem);         newConditionnedAction.conditionTasks = (ConditionList)conditionTasks.Duplicate(newOwnerSystem);           return newConditionnedAction;     }       protected override void OnExecute()     {         conditionTasks.Enable(agent, blackboard);           if (conditionTasks.CheckCondition(agent, blackboard))             actionTasks.ExecuteAction(agent, blackboard);     }       protected override void OnUpdate()     {         if (conditionTasks.CheckCondition(agent, blackboard))         {             actionTasks.ExecuteAction(agent, blackboard);         }     }       protected override void OnStop()     {         actionTasks.EndAction(null);         conditionTasks.Disable();     }       protected override void OnPause()     {         actionTasks.PauseAction();     }   #if UNITY_EDITOR     protected override void OnTaskInspectorGUI()     {         foreach (ConditionTask c in conditionTasks.conditions)         {             c.SetOwnerSystem(this.ownerSystem);         }           foreach (ActionTask a in actionTasks.actions)         {             a.SetOwnerSystem(this.ownerSystem);         }           GUILayout.Label("Conditions");         conditionTasks.ShowListGUI();         conditionTasks.ShowNestedConditionsGUI();           GUILayout.Space(10);         GUILayout.Label("Actions");         actionTasks.ShowListGUI();         actionTasks.ShowNestedActionsGUI();     }       public void DoSavePreset()     { #if !UNITY_WEBPLAYER         var path = EditorUtility.SaveFilePanelInProject("Save Preset", "", "ConditionnedAction", "");         if (!string.IsNullOrEmpty(path))         {             System.IO.File.WriteAllText(path, JSONSerializer.Serialize(typeof(ConditionnedAction), this, true)); //true for pretyJson             AssetDatabase.Refresh();         } #else             Debug.LogWarning("Preset saving is not possible with WebPlayer as active platform"); #endif     }       public void DoLoadPreset()     { #if !UNITY_WEBPLAYER         var path = EditorUtility.OpenFilePanel("Load Preset", "Assets", "ConditionnedAction");         if (!string.IsNullOrEmpty(path))         {             var json = System.IO.File.ReadAllText(path);             var list = JSONSerializer.Deserialize<ConditionnedAction>(json);             this.actionTasks = list.actionTasks;             this.conditionTasks = list.conditionTasks;               this.actionTasks.SetOwnerSystem(this.ownerSystem);             this.conditionTasks.SetOwnerSystem(this.ownerSystem);               foreach (var a in this.actionTasks.actions)             {                 a.SetOwnerSystem(this.ownerSystem);             }               foreach (var c in this.conditionTasks.conditions)             {                 c.SetOwnerSystem(this.ownerSystem);             }         } #else             Debug.LogWarning("Preset loading is not possible with WebPlayer as active platform"); #endif     }   #endif   }

This was designed to be used with previousState and nextState condition. I will keep you informed if it worked great =) .