/*
   render/text.cc
   This file is part of the Osirion project and is distributed under 
   the terms of the GNU General Public License version 2 
*/

#include "render/render.h"
#include "GL/glut.h"

namespace render {

void draw_text(float x, float y, std::string text) 
{
	for (size_t i =0; i < text.size(); i++) {
		if (text[i] != ' ') {
			int row = (int) text[i] >> 4;
			int col = (int) text[i] & 15;
	
			float frow = row * 0.0625f;
			float fcol = col * 0.0625f;
			
			gl::begin(gl::Quads);
			
			glTexCoord2f(fcol, frow);
			gl::vertex(x,y,0);

			glTexCoord2f(fcol + 0.0625f, frow);
			gl::vertex(x+CHARSIZE,y,0);

			glTexCoord2f(fcol +0.0625f, frow + 0.0625f);
			gl::vertex(x+CHARSIZE,y+CHARSIZE,0);

			glTexCoord2f(fcol, frow+0.0625f);
			gl::vertex(x,y+CHARSIZE,0);

			gl::end();
		}
		x += CHARSIZE;
	}
}

}