New Main

Main.java

import org.lwjgl.glfw.GLFWVidMode;

import static org.lwjgl.glfw.GLFW.*;
import static org.lwjgl.opengl.GL11.*;

import org.lwjgl.opengl.GL;


public class Main {


    public Main(){
        // test glfw initialization
        if (!glfwInit()){
            System.err.println("GLFW Failed to initialize");
            System.exit(1);
        }

        //create the window
        long window = glfwCreateWindow(640, 480, "LWJGL Tutorial", 0, 0);
        glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);

        if (window == 0){
            System.err.println("Failed to create the Window");
        }


        // set video mode, and show the window with capabilities for GL
        GLFWVidMode vidMode = glfwGetVideoMode(glfwGetPrimaryMonitor());

        glfwSetWindowPos(window, (vidMode.width() - 640)/2, (vidMode.height() - 480) /2 );

        glfwShowWindow(window);

        glfwMakeContextCurrent(window);

        GL.createCapabilities();

        // set the background color
        glClearColor(0.16f, 0.16f, 0.2f, 1f);

        float x = 0;

        float count = 0;
        float red_color = 1;
        float blue_color = 0;
        float green_color = 0;


        // Game loop
        while(!glfwWindowShouldClose(window)){

            glfwPollEvents();
            if (glfwGetKey(window, GLFW_KEY_A) == GL_TRUE){
                x+= 0.001f;
            } else if (glfwGetKey(window, GLFW_KEY_D) == GL_TRUE){
                x-= 0.001f;
            }
            //set the color
            glClear(GL_COLOR_BUFFER_BIT);

            // don't use for real, just for testing. Shows a simple square
            glBegin(GL_QUADS);
                glColor4f(red_color, green_color, blue_color, 0f);
                glVertex2f(-0.5f + x,0.5f);
                glVertex2f(0.5f + x,0.5f);
                glVertex2f(0.5f + x,-0.5f);
                glVertex2f(-0.5f + x,-0.5f);
            glEnd(); // must end the draw mode

            glfwSwapBuffers(window); // show the updates
        }

        glfwTerminate(); // clean up
    }

    public static void main(String[] args){
        new Main(); // call and start the game
    }
}