Function loopv

source/src/editing.cpp:326–353

    {
        const int xo[] = { 0, 0, 1, 1, 0 }, yo[] = {0, 1, 1, 0, 0 };
        loopv(tagclipcubes) // all non-solid & have clips
        {
            int x = tagclipcubes[i] & 0xFFFF, y = tagclipcubes[i] >> 16;
            ASSERT(!OUTBORD(x, y));
            sqr *s = S(x,y), *o[9];
            if(s->tag & TAGCLIP) linestyle(tagcliplinewidth, 0xFF, 0xFF, 0); // yello
            else linestyle(tagcliplinewidth, 0xFF, 0, 0xFF); // magenta
            o[8] = SWS(s,-1,-1,sfactor);
            o[3] = o[8] + 1;                    // 837
            o[7] = o[3] + 1;                    // 0s2
            o[0] = o[4] = SWS(s,-1,0,sfactor);  // 516
            o[2] = o[0] + 2;
            o[5] = SWS(s,-1,1,sfactor);
            o[1] = o[5] + 1;
            o[6] = o[1] + 1;
            bool clipped[9];
            loopj(9) clipped[j] = !SOLID(o[j]) && (o[j]->tag & TAGANYCLIP) > 0;
            int h = s->floor - (s->type == FHF ? (s->vdelta + 3) / 4 : 0), c = s->ceil + (s->type == CHF ? (s->vdelta + 3) / 4 : 0);
            loopk(4) if((clipped[k] == clipped[k+1]) && !(clipped[k] && clipped[k + 5])) line(x + xo[k+1], y + yo[k+1], h, x + xo[k+1], y + yo[k+1], c);
            for( ; h < c; h++)
            {
                int k = (h + x + y) & 3;
                if(k < 2 && !clipped[k]) line(x + xo[k], y + yo[k], h + 1, x + xo[k+1], y + yo[k+1], h);
                k = (h - x - y) & 3;
                if(k > 1 && !clipped[k]) line(x + xo[k], y + yo[k], h + 1, x + xo[k+1], y + yo[k+1], h);
            }
            if(sparkletime && tagnumfull) particle_cube(s->tag & TAGCLIP ? PART_EPICKUP : PART_EMODEL, tagnumfull, 30, x, y);
        }
    }

    glLineWidth(1);