GitHub - id-Software/DOOM: DOOM Open Source Release
github.com
DOOM Open Source Release. Contribute to id-Software/DOOM development by creating an account on GitHub.

It's been open source and "ambiguously" GPL for a long time but as of yesterday it is super duper official definitely under GPLv2. Just source code, not assets of course.

  • CantaloupeAss [comrade/them]3•5 months ago

    "wow to make a code project of that scale they must have been brilliant programmers with highly organized code"

    // translates between frame-buffer and map coordinates
#define CXMTOF(x)  (f_x + MTOF((x)-m_x))
#define CYMTOF(y)  (f_y + (f_h - MTOF((y)-m_y)))

// the following is crap
#define LINE_NEVERSEE ML_DONTDRAW
    • invalidusernamelol [he/him]2•5 months ago
      // if non-number, do not draw it
if (n == 1994)
    return 0;

      //
// Display level completion time and par,
//  or "sucks" message if overflow.
//

      ...

          else
    {
        // "sucks"
        V_DrawPatch(x - SHORT(sucks->width), y, FB, sucks); 
    }

            case 141:
        // Silent Ceiling Crush & Raise
        EV_DoCeiling(line,silentCrushAndRaise);
        line->special = 0;
        break;

      So many switch statements