/* Copyright 2010 Christian Matt
*
* This file is part of PonkOut.
*
* PonkOut is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PonkOut is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with PonkOut. If not, see <http://www.gnu.org/licenses/>.
*/
package ponkOut.graphics;
import org.lwjgl.opengl.GL11;
import org.lwjgl.util.vector.Vector2f;
import ponkOut.Settings;
/**
* Text displayed at screen as a head-up display
*/
public class HUDText extends HUDObject {
private String string;
private Vector2f position;
private float size;
private Font font;
/**
* @param string
* text to display
* @param position
* top left position of first character
* @param size
* size of the text
* @param r
* red
* @param g
* green
* @param b
* blue
* @param a
* alpha
* @param visible
* true if text shall be rendered
* @param goManager
* GraphicsObjectManager this text will be added to
*/
public HUDText(String string, float size, float r, float g, float b, float a, Vector2f position, boolean visible,
GraphicsObjectsManager goManager) {
super(new Color(r, g, b, a), visible, goManager);
this.string = string;
this.size = size;
this.font = new Font();
// use negative y-value because y-axis points upwards and origin is in
// the upper left corner
this.position = new Vector2f(position.x, -position.y);
}
/**
* creates centred HUD text
*
* @param string
* text to display
* @param size
* size of the text
* @param r
* red
* @param g
* green
* @param b
* blue
* @param a
* alpha
* @param visible
* true if text shall be rendered
* @param goManager
* GraphicsObjectManager this text will be added to
*/
public HUDText(String string, float size, float r, float g, float b, float a, boolean visible,
GraphicsObjectsManager goManager) {
super(new Color(r, g, b, a), visible, goManager);
this.string = string;
this.size = size;
this.font = new Font();
float resX = Settings.getInstance().getResolutionX();
float resY = Settings.getInstance().getResolutionY();
float length = size * font.getCharacterWidth() * string.length();
float height = size * font.getCharacterHeight();
// use negative y-value because y-axis points upwards and origin is in
// the upper left corner
this.position = new Vector2f((resX - length) / 2.0f, -(resY - height) / 2.0f);
}
public void setText(String string) {
this.string = string;
}
@Override
public void draw() {
// store current transformation matrix
GL11.glPushMatrix();
// translate to text position
GL11.glTranslatef(position.x, position.y, 0.0f);
// scale
GL11.glScalef(size, size, size);
// set color
color.use();
// draw it
font.drawString(string, false, false);
// restore transformation matrix
GL11.glPopMatrix();
}
public void translate(float x, float y) {
position.x += x;
position.y += y;
}
}