Package com.badlogic.ashley.tests

Source Code of com.badlogic.ashley.tests.RenderSystemTest$MainClass

/*******************************************************************************
* Copyright 2014 See AUTHORS file.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/

package com.badlogic.ashley.tests;

import com.badlogic.ashley.core.Entity;
import com.badlogic.ashley.core.PooledEngine;
import com.badlogic.ashley.tests.components.MovementComponent;
import com.badlogic.ashley.tests.components.PositionComponent;
import com.badlogic.ashley.tests.components.VisualComponent;
import com.badlogic.ashley.tests.systems.MovementSystem;
import com.badlogic.ashley.tests.systems.RenderSystem;
import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.backends.lwjgl.LwjglApplication;
import com.badlogic.gdx.backends.lwjgl.LwjglApplicationConfiguration;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.math.MathUtils;

public class RenderSystemTest {
  public static void main(String[] args){
    LwjglApplicationConfiguration config = new LwjglApplicationConfiguration();
    config.width = 640;
    config.height = 480;
   
    new LwjglApplication(new MainClass(), config);
  }
 
  public static class MainClass extends ApplicationAdapter {
    PooledEngine engine;
   
    @Override
    public void create() {
      OrthographicCamera camera = new OrthographicCamera(640, 480);
      camera.position.set(320, 240, 0);
      camera.update();
     
      Texture crateTexture = new Texture("assets/crate.png");
      Texture coinTexture = new Texture("assets/coin.png");
     
      engine = new PooledEngine();
      engine.addSystem(new RenderSystem(camera));
      engine.addSystem(new MovementSystem());
     
      Entity crate = engine.createEntity();
      crate.add(new PositionComponent(50, 50));
      crate.add(new VisualComponent(new TextureRegion(crateTexture)));

      engine.addEntity(crate);
     
      TextureRegion coinRegion = new TextureRegion(coinTexture);
     
      for(int i=0; i<100; i++){
        Entity coin = engine.createEntity();
        coin.add(new PositionComponent(MathUtils.random(640), MathUtils.random(480)));
        coin.add(new MovementComponent(10.0f, 10.0f));
        coin.add(new VisualComponent(coinRegion));
        engine.addEntity(coin);
      }
    }

    @Override
    public void render() {
      Gdx.gl.glClearColor(0, 0, 0, 1);
      Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
     
      engine.update(Gdx.graphics.getDeltaTime());
    }
  }
}
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