Seeking some tips when using the AI Planner

Hello,

I've been trying to learn how the AI Planner works and I think I need some pointers regarding operational actions. I'm using 2019.1.10f1 with the preview ECS package removed as it seems like it isn't compatible yet.

The manual says how to implement the operational actions, but I can't figure out when or in what context I need to write them. Are they one-to-one with actions in the AI planner UI? Do I need to write them from scratch, or do they get generated somewhere?

Also, assuming I have a properly configured domain definition and plan definition, as well as some operational actions, and I have manually set up the interactable scene objects within the agent component, is that everything needed to make the AI Planner work? Is there anything special for having more than one agent?

Somewhat related, I can't get the otto demo to load with a recent version of Unity so I haven't been able to use that as a reference just yet. I understand that it's a preview package so I'm not trying to urge anything unreasonable, I'm just excited to use this tool and wanted to ask.

As a bonus question, the github repo is still the only way to install the ML agents code right? There isn't currently a preview package for that?

Thanks!

 

Thanks so much for taking the time to clear that up for me! I think I'm on the right track now.

Previously I had opened the DemoScene and Unity did this kind of half-loading thing, where the hierarchy listed the game objects but none of them appeared in the scene (I tried picking one and using F to find, I could see its transform but not the actual objects). Also the editor gave me an error about the scene being serialized by a different version of Unity. I haven't tried re-downloading it in a few days so I'll try it again this evening.

Makes sense that ML Agents is a different team. Thanks again!

 

In which namespace should need to be custom traits,rewards,effects,action...???

Code (CSharp):

1. Temp\PlannerAssembly\AI.Planner.Actions\TestPlan\InspectorGeneratedAction.cs(88,25): error CS0246: The type or namespace name 'CustomLocationActionEffect' could not be found (are you missing a using directive or an assembly reference?)
2. UnityEditor.AI.Planner.CodeGen.PlannerAssemblyBuilder:Build() (at Library/PackageCache/com.unity.ai.planner@0.2.2-preview.1/Editor/CodeGen/PlannerAssemblyBuilder.cs:134)
3.  

 

Let say you create ssembly definition, .asmdef, with name TestPlan, You need to have extension structs in following namespaces in order to be compiled correctly:

Code (CSharp):

1. namespace AI.Planner.Custom.TestPlan
2. {
3.     public struct CustomTraitReward : ICustomTraitReward<Agent>
4.     {

Code (CSharp):

1. namespace AI.Planner.Actions.TestPlan
2. {
3.     public struct CustomLocationPreCondition : ICustomPrecondition<StateData>

Code (CSharp):

1. //namespace AI.Planner.Custom.TestPlan
2. namespace AI.Planner.Actions.TestPlan
3. {
4.     /// <summary>
5.     /// This will be shown in Action Inspector Object Modified
6.     /// </summary>
7.     public struct CustomLocationActionEffect : ICustomActionEffect<StateData>

I couldn't find in the Trait List the custom Trait dough.

Code (CSharp):

1.  
2. namespace AI.Planner.Custom.TestPlan
3. {
4.     [System.Serializable]
5.     public struct CustomLocationTrait : ICustomTrait, IEquatable<CustomLocationTrait>

Code (CSharp):

1. namespace AI.Planner.Custom.TestPlan
2. {
3.  
4.  
5.     public struct CustomLocationHeuristicTest : ICustomHeuristic<StateData>

Note which need to go into AI.Planner.Custom.NameOfYourASMDF and which AI.Planner.Actions.NameOfYourASMDF.