package me.hammerle.snuviengine.game;

import java.util.LinkedList;
import java.util.List;
import java.util.Random;
import me.hammerle.snuviengine.api.Engine;
import me.hammerle.snuviengine.api.KeyBinding;
import me.hammerle.snuviengine.api.KeyHandler;
import me.hammerle.snuviengine.api.Shader;
import me.hammerle.snuviengine.api.Texture;
import me.hammerle.snuviengine.api.TextureRenderer;
import me.hammerle.snuviengine.util.Clock;
import static org.lwjgl.glfw.GLFW.*;

public class Game extends Engine
{
    public final static KeyBinding UP = KeyHandler.register(GLFW_KEY_UP);
    public final static KeyBinding DOWN = KeyHandler.register(GLFW_KEY_DOWN);
    public final static KeyBinding LEFT = KeyHandler.register(GLFW_KEY_LEFT);
    public final static KeyBinding RIGHT = KeyHandler.register(GLFW_KEY_RIGHT);
    
    private final TextureRenderer tr = new TextureRenderer();
    private final Texture t = new Texture("images/out3.png");
    
    public BoxList entities = new BoxList(0.0, 0.0, 400.0, 300.0, 1.0);
    private final List<Entity> list = new LinkedList<>();
    
    public Game()
    {
        Random r = new Random(100);
        for(int i = 0; i < 4096; i++)
        {
            Entity ent = new Entity(this, 1.0, 1.0);
            ent.setPosition((int) (r.nextDouble() * 400.0), (int) (r.nextDouble() * 300));
            ent.node = entities.add(ent);
            list.add(ent);
        }
        
        Hero hero = new Hero(this, 1.0, 1.0);
        hero.setPosition(300.0, 200);
        hero.node = entities.add(hero);
        list.add(hero);
    }
    
    @Override
    public void init()
    {
        setNanosPerTick(10_000_000);
    }

    @Override
    public void tick()
    {        
        CLOCK.start();
        list.forEach(ent -> ent.tick());
        CLOCK.stop();
        //CLOCK.printTime(entities.amount + " Time: ");
        
        /*if(!list.isEmpty())
        {
            Entity ent = list.remove(c);
            entities.remove(ent.node);
        }

        if(!list.isEmpty())
        {
            Entity ent = list.remove(c);
            entities.remove(ent.node);
        }

        if(!list.isEmpty())
        {
            Entity ent = list.remove(c);
            entities.remove(ent.node);
        }*/
    }
    
    private static final Clock CLOCK = new Clock(250);
    
    @Override
    public void renderTick(double lag)
    {
        Shader.setTextureEnabled(false);
        Shader.setColorEnabled(true);
        list.forEach(ent -> ent.renderTick(lag));
        
        Shader.setTextureEnabled(true);
        Shader.setColorEnabled(true);
        Shader.getFontRenderer().drawString(5, 5, true, "FPS " + String.format("%.1f", getFps()));
        Shader.getFontRenderer().drawString(5, 14, true, "TPS " + String.format("%.1f", getTps()));
        
        //Shader.getColorRenderer().drawRectangle(0.0f, 0.0f, 100.0f, 100.0f, 0xFF0000FF);

        /*for(int i = 0; i < 400; i++)
        {
            Shader.getColorRenderer().drawRectangle(0.0f, i * 2.0f, 20.0f, i * 2.0f + 1, 0xFFFFFFFF);
        }*/

        //hader.setDepthTestUsing(false);

        /*Shader.setBlendingEnabled(false);

        Shader.setTextureEnabled(true);
        Shader.setColorEnabled(true);
        for(int i = 0; i < 20; i++)
        {
            Shader.getFontRenderer().drawString(0, i * 9, true, "Das ist ein Test.");
        }*/
    }
}