First Script

Let’s print Hello UNLang! in Unity console window.

① Create “Hello UNLang!” Script

• Back to Unity editor, you will see UNLang/IDE... menu.
  
• Open the IDE window.
• Right click in the IDE window and you will see all operations in the context menu.
  
• Add Entry, Constant and Console modules, then connect them as following:
  
• Select Constant module and in the Inspector window, choose String type and input Hello UNLang!.
  
• Right click to save the script to local project, for example, [UnityProject]/Assets/Resources/1.bytes.
  

② Run the Script

• Create a GameObject in the active scene.
• Attach an empty MonoBehaviour cs file.

• Edit the empty MonoBehaviour cs file with the following code:

  using UnityEngine;
  using UNLang;
  using UNode;
  
  public class NewBehaviourScript : MonoBehaviour
  {
      // UNLang instance to execute the script.
      private LangInstance instance = null;
  
      void Start()
      {
          // Take over the loader since we put the script file
          // under Resources folder.
          NodeLoader.Load = file =>
          {
              // Remove "Resources" relative path and file extension.
              file = file.Replace("/Resources/", "");
              file = file.Substring(0, file.IndexOf("."));
              return Resources.Load<TextAsset>(file).bytes;
          };
  
          // Create UNLang instance.
          this.instance = new LangInstance();
          // Load script file "1.bytes".
          this.instance.Load("1.bytes");
          // Start the script from "Entry" module.
          this.instance.Run<Entry>();
      }
  
      void Update()
      {
          // Update UNLang instance.
          this.instance?.Update();
      }
  }

• Congrats with Hello UNLang! in Unity console window.