package ru.dmitriymx.game;

import org.lwjgl.LWJGLException;
import org.lwjgl.input.Keyboard;
import org.lwjgl.opengl.Display;
import org.lwjgl.opengl.DisplayMode;
import org.lwjgl.opengl.GL11;

public class Main {
    private Foxy foxy;

    private void init_display(int width, int height){
        try {
            Display.setDisplayMode(new DisplayMode(width, height));
            Display.setVSyncEnabled(true);
            Display.create();
        } catch (LWJGLException e) {
            e.printStackTrace();
            System.exit(-1);
        }
    }

    private void init_opengl(int width, int height) {
        GL11.glEnable(GL11.GL_TEXTURE_2D);
        GL11.glClearColor(0, 0, 0.3f, 0);

        GL11.glEnable(GL11.GL_BLEND);
        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

        GL11.glMatrixMode(GL11.GL_PROJECTION);
        GL11.glLoadIdentity();
        GL11.glOrtho(0, width, height, 0, 1, -1);
        GL11.glMatrixMode(GL11.GL_MODELVIEW);
    }

    private void render(){
        while(Keyboard.next()){
            if(Keyboard.getEventKey() == Keyboard.KEY_LEFT){
                foxy.setInverse(true);
                if(Keyboard.getEventKeyState()){
                    foxy.setState(1);
                } else {
                    foxy.setState(0);
                }
            } else if (Keyboard.getEventKey() == Keyboard.KEY_RIGHT){
                foxy.setInverse(false);
                if(Keyboard.getEventKeyState()){
                    foxy.setState(1);
                } else {
                    foxy.setState(0);
                }
            }
        }

        final int speed = 5 * 4;
        if(foxy.getState() == 1){
            if(foxy.getInverse()){
                foxy.setX(foxy.getX() - speed);
            } else {
                foxy.setX(foxy.getX() + speed);
            }
        }
        foxy.render();
    }

    public void start(int width, int height){
        init_display(width, height);
        init_opengl(width, height);

        foxy = new Foxy();
        foxy.setY(Display.getHeight() - (34*4));

        while(!Display.isCloseRequested()){
            GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
            render();
            Display.update();
            Display.sync(15);
        }

        Display.destroy();
    }

    public static void main(String[] args){
        new Main().start(800,600);
    }
}