juneprimavera / jnebula

JNebula, is a modern Component based Graphics/Game engine for Java.

JNebula v1.0.0 In-Dev

a component based graphics engine coded in java

coded by: TheoW03

Getting Started

No JSON editor

main

import org.JNebula.GameObjects.GameRenderer;

public class Main {
    public static void main(String[] args) throws IOException {
        GameRenderer starterCode = new StarterCode(); //for step 3 if you get a not defined error then
        Window.InitWindow(640, 480, "example window", starterCode,"");
    }
}

---

your renderer class

public class StarterCode extends GameRenderer {

    //runs 1st frame. 
    //dt: delta time
    //GL2: OpenGL context
    @Override
    public void start(float dt, GL2 gl){
        GameObject obj = new GameObject("starterObj"); // you can name it what you want
        obj.AddComponent(new CameraComponent(new Vector3(0,0,0))); //not required if you dont add it will default to 0,0
        obj.AddComponent(new SpriteComponents("sprite.png","png",null)); //the null is a color
        obj.AddComponent(new TransformComponent(new Vector3(0,0,0)));
        Scene.InstantiateObject(obj);
    }
    //runs 1st frame. 
    //dt: delta time
    //GL2: OpenGL context
    @Override
    public void update(float dt, GL2 gl){
        GameObject render1Instance = InitObjects.Find("render1");
    }
}

JSON editor

warning: The JSON editor isn't fully functional and may have some bugs. or some specific test cases where its unusable.

[
  {
    "name": "render1",
    "isActive": true,
    "components": [
      {
        "component_name": "org.JNebula.Components.DifferentComponents.TransformComponent",
        "location": {
          "x": 100,
          "y": 100,
          "z": 0
        }
      },
      {
        "component_name": "org.JNebula.Components.DifferentComponents.SpriteComponent",
        "file": "${path to image}",
        "type": "jpg"
      }
    ]
  }
]

import org.JNebula.GameObjects.GameRenderer;

public class Main {
    public static void main(String[] args) throws IOException {
        GameRenderer starterCode = new StarterCode(); //for step 3 if you get a not defined error then
        Window.InitWindow(640, 480, "example window", starterCode, "${PATH TO JSON}");
    }
}

public class StarterCode extends GameRenderer {
    //runs 1st frame. 
    //dt: delta time
    //GL2: OpenGL context
    @Override
    public void start(float dt, GL2 gl){       

    }
    //runs every frame. 
    // dt: delta time
    //GL2: OpenGL context
    @Override
    public void update(float dt, GL2 gl){
        GameObject render1Instance = InitObjects.Find("render1");


    }
}

Documentation

• Documentation v1.0.0

Demo

• Demo v1.0.0

Contributors

T-A-B

June

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I encourage you all to leave feedback in the issue page, or discussion, greatly appreciated.

https://github.com/TheoW03/JNebula/issues

https://github.com/TheoW03/JNebula/discussions