glut_font.cpp

int font_style = GLUT_BITMAP_HELVETICA_12;

void setfont(char* name, int size)
{
    font_style = GLUT_BITMAP_HELVETICA_10;
    if (strcmp(name, "helvetica") == 0) {
        if (size == 12) 
            font_style = GLUT_BITMAP_HELVETICA_12;
        else if (size == 18)
            font_style = GLUT_BITMAP_HELVETICA_18;
    } else if (strcmp(name, "times roman") == 0) {
        font_style = GLUT_BITMAP_TIMES_ROMAN_10;
        if (size == 24)
            font_style = GLUT_BITMAP_TIMES_ROMAN_24;
    } else if (strcmp(name, "8x13") == 0) {
        font_style = GLUT_BITMAP_8_BY_13;
    } else if (strcmp(name, "9x15") == 0) {
        font_style = GLUT_BITMAP_9_BY_15;
    }
}

void drawstr(float x, float y, float z, char* format, ...)
{
    va_list args;
    char buffer[255], *s;
    
    va_start(args, format);
    vsprintf(buffer, format, args);
    va_end(args);
    
    glRasterPos3f(x, y, z);
    for (s = buffer; *s; s++)
        glutBitmapCharacter(font_style, *s);
}