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);
}