void drawText(const char *text, int length, int x, int y)
{
	glMatrixMode(GL_PROJECTION);
	double *matrix = new double[16];
	glGetDoublev(GL_PROJECTION_MATRIX, matrix);
	glLoadIdentity();
	glOrtho(0, 400, 0, 400, -5, 5);
	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();
	glPushMatrix();
	glLoadIdentity();
	glRasterPos2i(x, y);
	for (int i = 0; i<length; i++)
	{
		glutBitmapCharacter(GLUT_BITMAP_9_BY_15, (int)text[i]);
	}
	glPopMatrix();
	glMatrixMode(GL_PROJECTION);
	glLoadMatrixd(matrix);
	glMatrixMode(GL_MODELVIEW);

}