Font.java

/*    Dice in the dark. D & D app for the blind and seeing impaired,
*    Copyright (C) <2013r>  <Lovisa Irpa Helgadottir>
*
*    This program 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.
*
*    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package com.plovergames.framework.gl;

public class Font {
	public final Texture texture;
    public final int glyphWidth;
    public final int glyphHeight;
    public final TextureRegion[] glyphs = new TextureRegion[96];   

    public Font(Texture texture, 
            int offsetX, int offsetY,
            int glyphsPerRow, int glyphWidth, int glyphHeight) {        
        this.texture = texture;
        this.glyphWidth = glyphWidth;
        this.glyphHeight = glyphHeight;
        int x = offsetX;
        int y = offsetY;
        for(int i = 0; i < 96; i++) {
            glyphs[i] = new TextureRegion(texture, x, y, glyphWidth, glyphHeight);
            x += glyphWidth;
            if(x == offsetX + glyphsPerRow * glyphWidth) {
                x = offsetX;
                y += glyphHeight;
            }
        }        
    }

    public void drawText(SpriteBatcher batcher, String text, float x, float y) {
        int len = text.length();
        for(int i = 0; i < len; i++) {
            int c = text.charAt(i) - ' ';
            if(c < 0 || c > glyphs.length - 1) 
                continue;
            
            TextureRegion glyph = glyphs[c];
            batcher.drawSprite(x, y, glyphWidth, glyphHeight, glyph);
            x += glyphWidth;
        }
    }

}