On the main menu of my game there is (obviously) several buttons. 2 of which, in different positions on different screens, render a different colour to the rest.
As you can see below, "New game" renders black, while the others render grey and on the options screen "Back" does the same thing (this one has literally only just started doing it but I don't know what would cause it).
The code for both buttons is basically exactly the same:
public class ButtonNewGame extends Button
{
public ButtonNewGame(int height, String text)
{
super(height, text);
}
@Override
protected void click()
{
//Begin drawing the correct components and stop the unneeded ones
Main.instanceManager.menuInstance.draw = false;
Main.instanceManager.introInstance.draw = true;
}
}
The only difference between the two are the draw booleans they change, and their names. V.s one of the other buttons the code is again pretty much exactly the same.
The main button class:
public abstract class Button extends Component //TODO Fix strange render issues with new game and options back buttons
{
private UnicodeFont font;
private String text;
/**
* True if user just clicked. Used to stop button spamming on toggle buttons.
*/
protected static boolean clicked;
/**
* Create a new button
* @param height the text size
* @param text the text to display
*/
public Button(int height, String text)
{
createFont(height, true, false); //Create font to draw with
this.text = text;
}
/**
* Render the button
* @param x start x position
* @param y start y position
* @param width the button width
* @param height the button height
*/
public void draw(double x, double y, int width, int height)
{
Color.white.bind();
glPushMatrix();
glTranslated(x, y, 0); //Make sure to draw the button at the specified coordinates
//Get mouse coordinates
int mouseX = Mouse.getX();
int mouseY = Main.WINDOW_HEIGHT-Mouse.getY(); //Compensates for mouse being calculated from bottom up
//Check for mouse status and call correct draw method accordingly
if((mouseX > x && mouseX < x + width) && (mouseY > y && mouseY < y + height))
{
if(Mouse.isButtonDown(0) && !clicked) //If the button has been clicked
{
drawClick(x, y, width, height); //This will very rarely, if at all, be seen.
click(); //Actual click event
clicked = true;
}
else
{
drawHover(x, y, width, height); //When the mouse is within the button area
}
}
else
{
drawNormal(x, y, width, height); //When the mouse is not within the button area
}
if(!Mouse.isButtonDown(0)) clicked = false; //Only reset clicked once the mouse button is released
drawFont(0, 0, this.text, Color.white); //Draw the button text
glPopMatrix();
}
/**
* Draw the button when nothing is happening to it
* @param x start x position
* @param y start y position
* @param width the width of the button
* @param height the height of the button
*/
protected void drawNormal(double x, double y, int width, int height)
{
glBegin(GL_QUADS);
glColor4d(0.6, 0.6, 0.6, 0.8);
glVertex2d(0, 0);
glVertex2d(width, 0);
glVertex2d(width, height);
glVertex2d(0, height);
glEnd();
}
/**
* Draw the button when the mouse is hovering over it
* @param x start x position
* @param y start y position
* @param width the width of the button
* @param height the height of the button
*/
protected void drawHover(double x, double y, int width, int height)
{
glBegin(GL_QUADS);
glColor3d(0.7, 0.7, 0.7);
glVertex2d(0, 0);
glVertex2d(width, 0);
glVertex2d(width, height);
glVertex2d(0, height);
glEnd();
}
/**
* Draw the button when the mouse is hovering over it and held down
* @param x start x position
* @param y start y position
* @param width the width of the button
* @param height the height of the button
*/
protected void drawClick(double x, double y, int width, int height)
{
glBegin(GL_QUADS);
glColor3d(0.75, 0.75, 0.75);
glVertex2d(0, 0);
glVertex2d(width, 0);
glVertex2d(width, height);
glVertex2d(0, height);
glEnd();
}
/**
* Font setup
* @return UnicodeFont for drawing
*/
@SuppressWarnings("unchecked")
private UnicodeFont createFont(int size, boolean isBold, boolean isItalic)
{
//Try to load the font from file
try
{
InputStream inputStream = ResourceLoader.getResourceAsStream("assets/fonts/handwriting_draft.ttf");
Font awtFont = Font.createFont(Font.TRUETYPE_FONT, inputStream);
font = new UnicodeFont(awtFont, size, isBold, isItalic);
}
catch (Exception e)
{
e.printStackTrace();
}
//Load the font effects and set to white as backup
font.addAsciiGlyphs();
ColorEffect colour = new ColorEffect();
colour.setColor(java.awt.Color.white);
font.getEffects().add(colour);
try
{
font.loadGlyphs();
}
catch (SlickException e1)
{
e1.printStackTrace();
}
return font;
}
/**
* Draws the pre-setup font
* @param x x-offset inside the button
* @param y y-offset inside the button
* @param text the text to render
* @param colour the text's colour
*/
private void drawFont(int x, int y, String text, Color colour)
{
glEnable(GL_TEXTURE_2D);
font.drawString(x, y, text, colour);
glDisable(GL_TEXTURE_2D);
}
protected abstract void click();
}
I think this class is probably responsible, however I also believe it could be down to my OpenGL setup method which is called every frame (is that a bad thing to do?):
private void setCamera()
{
glClear(GL_COLOR_BUFFER_BIT); //Clear screen
//Modify projection matrix
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, Display.getWidth(), Display.getHeight(), 0, 1, -1);
//Enable transparency, so the text doesn't have a black background
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_TEXTURE_2D); //For loading textures
//Modify modelview matrix
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
If however I am completely wrong all of the code can be found here: https://github.com/Roboguy99/World-Map-Game
I have no idea what is causing this, and my knowledge on OpenGL is very limited. I appreciate any help I can get, thanks.
