heym what's up everyone?
So, i'm new in this stuff of writing GUIs on java and I was watching some video lessons on youtube on the subject.
I wrote a code, and I wrote EXACTLY like the lesson but it didn't work on my pc although it worked well on the lesson.
Anyway, the code is some boxes that pops up on the screen and I configured the mouse click to when the box is clicked it shows "you clicked me" and also a code to drag the box on the screen. The dragging didn't work and the 'u clicked me' worked only in the first loop...

so, here is the code, I'll also post the link for the lesson:

import static org.lwjgl.opengl.GL11.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import org.lwjgl.opengl.*;
import org.lwjgl.*;
import org.lwjgl.input.Mouse;
import org.lwjgl.input.Keyboard;

public class InputDemo {

private List<Box> shapes = new ArrayList<Box>(16);
private boolean somethingIsSelected = false;

public InputDemo(){
try {
Display.setDisplayMode(new DisplayMode(640, 480));
Display.setTitle("input demo");
Display.create();
} catch (LWJGLException e){
e.printStackTrace();
}

shapes.add(new Box(15, 150));
shapes.add(new Box(100, 150));
//codigo de inicializar OPenGL
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, 640, 480, 0, 1, -1);
glMatrixMode(GL_MODELVIEW);

while(!Display.isCloseRequested()){
//render
glClear(GL_COLOR_BUFFER_BIT);

while(Keyboard.next()){
if(Keyboard.getEventKey()== Keyboard.KEY_C && Keyboard.getEventKeyState()){
shapes.add(new Box(15, 15));

}

}


if(Keyboard.isKeyDown(Keyboard.KEY_ESCAPE)){
Display.destroy();
System.exit(0);
}
//mouse.get pega a coordenada do mouse
//mouse.getD pega quantos pixels o mouse se mecheu
int mousey = 480 - Mouse.getY();
int mousex = Mouse.getX();

int dx = Mouse.getDX();
int dy = Mouse.getDY();



for(Box box: shapes){
if(Mouse.isButtonDown(0) && box.inBounds(Mouse.getX(), 480 - Mouse.getY()) && !somethingIsSelected){
somethingIsSelected = true;
box.selected = true;
System.out.println("You clicked me!");
}
if(Mouse.isButtonDown(1)){
box.selected = false;
somethingIsSelected = false;
}
if(box.selected){
box.update(Mouse.getDX(), Mouse.getDY());
}
//box.randomizeColors();

box.draw();
}

Display.update();
Display.sync(60);
}
Display.destroy();
}

private static class Box{
public int x,y;
public boolean selected = false;
private float colorRed, colorBlue, colorGreen;

Box(int x, int y){
this.x=x;
this.y=y;
Random randomGenerator = new Random();
colorRed = randomGenerator.nextFloat();
colorBlue = randomGenerator.nextFloat();
colorGreen = randomGenerator.nextFloat();
}
boolean inBounds(int mousex, int mousey){
if(mousex > x && mousex < x+50 && mousey > y && mousey < y+50){
return true;
}
else
return false;
}
void update(int dx, int dy){
x += dx;
y += dy;
}
void randomizeColors(){
Random randomGenerator = new Random();
colorRed = randomGenerator.nextFloat();
colorBlue = randomGenerator.nextFloat();
colorGreen = randomGenerator.nextFloat();
}
void draw(){
glColor3f(colorRed, colorBlue, colorGreen);
glBegin(GL_QUADS);
glVertex2f(x, y);
glVertex2f(x+50, y);
glVertex2f(x+50, y+50);
glVertex2f(x, y+50);
glEnd();
}
}
public static void main(String[] args) {
// TODO Auto-generated method stub
new InputDemo();

}

}