From 74e7433a92b6fa8d33ac8362c7f4f0fc148be423 Mon Sep 17 00:00:00 2001 From: Monster Iestyn Date: Mon, 29 Aug 2016 22:42:06 +0100 Subject: [PATCH 1/3] Upper Unpegged on an FOF's control linedef now enables skewing of walls with respect to slopes Skewing direction is decided per in-level wall by the Lower Unpegged flag on in-level linedefs themselves, since they already decide the stuff for FOF wall pegging as it is. That is unless Transfer Line is involved which moves everything to the control sector linedefs instead... --- src/r_segs.c | 73 +++++++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 64 insertions(+), 9 deletions(-) diff --git a/src/r_segs.c b/src/r_segs.c index cb78743b6..3e525bf33 100644 --- a/src/r_segs.c +++ b/src/r_segs.c @@ -728,6 +728,12 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor) // Render FOF sides kinda like normal sides, with the frac and step and everything // NOTE: INT64 instead of fixed_t because overflow concerns INT64 top_frac, top_step, bottom_frac, bottom_step; + // skew FOF walls with slopes? + boolean slopeskew = false; + fixed_t ffloortextureslide = 0; + INT32 oldx = -1; + fixed_t left_top, left_bottom; // needed here for slope skewing + pslope_t *skewslope = NULL; #endif void (*colfunc_2s) (column_t *); @@ -951,21 +957,68 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor) mceilingclip = ds->sprtopclip; dc_texheight = textureheight[texnum]>>FRACBITS; +#ifdef ESLOPE + // calculate both left ends + if (*pfloor->t_slope) + left_top = P_GetZAt(*pfloor->t_slope, ds->leftpos.x, ds->leftpos.y) - viewz; + else + left_top = *pfloor->topheight - viewz; + + if (*pfloor->b_slope) + left_bottom = P_GetZAt(*pfloor->b_slope, ds->leftpos.x, ds->leftpos.y) - viewz; + else + left_bottom = *pfloor->bottomheight - viewz; + dc_texturemid = left_top; + skewslope = *pfloor->t_slope; // skew using top slope by default +#else dc_texturemid = *pfloor->topheight - viewz; +#endif if (newline) { offsetvalue = sides[newline->sidenum[0]].rowoffset; if (newline->flags & ML_DONTPEGBOTTOM) +#ifdef ESLOPE + { + dc_texturemid = left_bottom; + skewslope = *pfloor->b_slope; // skew using bottom slope + } +#else offsetvalue -= *pfloor->topheight - *pfloor->bottomheight; +#endif +#ifdef ESLOPE + if (newline->flags & ML_DONTPEGTOP) + slopeskew = true; +#endif } else { offsetvalue = sides[pfloor->master->sidenum[0]].rowoffset; if (curline->linedef->flags & ML_DONTPEGBOTTOM) +#ifdef ESLOPE + { + dc_texturemid = left_bottom; + skewslope = *pfloor->b_slope; // skew using bottom slope + } +#else offsetvalue -= *pfloor->topheight - *pfloor->bottomheight; +#endif +#ifdef ESLOPE + if (pfloor->master->flags & ML_DONTPEGTOP) // use control linedef's flags + slopeskew = true; +#endif } +#ifdef ESLOPE + if (slopeskew) + { + angle_t lineangle = R_PointToAngle2(curline->v1->x, curline->v1->y, curline->v2->x, curline->v2->y); + + if (skewslope) + ffloortextureslide = FixedMul(skewslope->zdelta, FINECOSINE((lineangle-skewslope->xydirection)>>ANGLETOFINESHIFT)); + } +#endif + dc_texturemid += offsetvalue; //faB: handle case where multipatch texture is drawn on a 2sided wall, multi-patch textures @@ -981,23 +1034,18 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor) #ifdef ESLOPE // Set heights according to plane, or slope, whichever { - fixed_t left_top, right_top, left_bottom, right_bottom; + fixed_t right_top, right_bottom; + // calculate right ends now if (*pfloor->t_slope) - { - left_top = P_GetZAt(*pfloor->t_slope, ds->leftpos.x, ds->leftpos.y) - viewz; right_top = P_GetZAt(*pfloor->t_slope, ds->rightpos.x, ds->rightpos.y) - viewz; - } else - left_top = right_top = *pfloor->topheight - viewz; + right_top = *pfloor->topheight - viewz; if (*pfloor->b_slope) - { - left_bottom = P_GetZAt(*pfloor->b_slope, ds->leftpos.x, ds->leftpos.y) - viewz; right_bottom = P_GetZAt(*pfloor->b_slope, ds->rightpos.x, ds->rightpos.y) - viewz; - } else - left_bottom = right_bottom = *pfloor->bottomheight - viewz; + right_bottom = *pfloor->bottomheight - viewz; // using INT64 to avoid 32bit overflow top_frac = (INT64)centeryfrac - (((INT64)left_top * ds->scale1) >> FRACBITS); @@ -1021,6 +1069,13 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor) { if (maskedtexturecol[dc_x] != INT16_MAX) { +#ifdef ESLOPE + if (ffloortextureslide) { // skew FOF walls + if (oldx != -1) + dc_texturemid += FixedMul(ffloortextureslide, (maskedtexturecol[oldx]-maskedtexturecol[dc_x])< Date: Mon, 29 Aug 2016 23:21:57 +0100 Subject: [PATCH 2/3] If NOT skewing FOF walls, make sure dc_texturemid reverts to using unsloped FOF topheight/bottomheight rather than actual left side top/bottom heights --- src/r_segs.c | 42 +++++++++++++++++++++--------------------- 1 file changed, 21 insertions(+), 21 deletions(-) diff --git a/src/r_segs.c b/src/r_segs.c index 3e525bf33..148d0b8f7 100644 --- a/src/r_segs.c +++ b/src/r_segs.c @@ -968,45 +968,45 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor) left_bottom = P_GetZAt(*pfloor->b_slope, ds->leftpos.x, ds->leftpos.y) - viewz; else left_bottom = *pfloor->bottomheight - viewz; - dc_texturemid = left_top; skewslope = *pfloor->t_slope; // skew using top slope by default -#else - dc_texturemid = *pfloor->topheight - viewz; + if (newline && newline->flags & ML_DONTPEGTOP) + slopeskew = true; + else if (pfloor->master->flags & ML_DONTPEGTOP) + slopeskew = true; + + if (slopeskew) + dc_texturemid = left_top; + else #endif + dc_texturemid = *pfloor->topheight - viewz; if (newline) { offsetvalue = sides[newline->sidenum[0]].rowoffset; if (newline->flags & ML_DONTPEGBOTTOM) -#ifdef ESLOPE { - dc_texturemid = left_bottom; - skewslope = *pfloor->b_slope; // skew using bottom slope - } -#else - offsetvalue -= *pfloor->topheight - *pfloor->bottomheight; -#endif #ifdef ESLOPE - if (newline->flags & ML_DONTPEGTOP) - slopeskew = true; + skewslope = *pfloor->b_slope; // skew using bottom slope + if (slopeskew) + dc_texturemid = left_bottom; + else #endif + offsetvalue -= *pfloor->topheight - *pfloor->bottomheight; + } } else { offsetvalue = sides[pfloor->master->sidenum[0]].rowoffset; if (curline->linedef->flags & ML_DONTPEGBOTTOM) -#ifdef ESLOPE { - dc_texturemid = left_bottom; - skewslope = *pfloor->b_slope; // skew using bottom slope - } -#else - offsetvalue -= *pfloor->topheight - *pfloor->bottomheight; -#endif #ifdef ESLOPE - if (pfloor->master->flags & ML_DONTPEGTOP) // use control linedef's flags - slopeskew = true; + skewslope = *pfloor->b_slope; // skew using bottom slope + if (slopeskew) + dc_texturemid = left_bottom; + else #endif + offsetvalue -= *pfloor->topheight - *pfloor->bottomheight; + } } #ifdef ESLOPE From 5e6bf9e340c18b8289385714de193601e9708315 Mon Sep 17 00:00:00 2001 From: Monster Iestyn Date: Mon, 29 Aug 2016 23:24:59 +0100 Subject: [PATCH 3/3] probably best if we did this instead actually --- src/r_segs.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/src/r_segs.c b/src/r_segs.c index 148d0b8f7..463325812 100644 --- a/src/r_segs.c +++ b/src/r_segs.c @@ -969,8 +969,11 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor) else left_bottom = *pfloor->bottomheight - viewz; skewslope = *pfloor->t_slope; // skew using top slope by default - if (newline && newline->flags & ML_DONTPEGTOP) - slopeskew = true; + if (newline) + { + if (newline->flags & ML_DONTPEGTOP) + slopeskew = true; + } else if (pfloor->master->flags & ML_DONTPEGTOP) slopeskew = true;