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Added alpha-only, relative calc, and offset params to 447 Change Colormap
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1 changed files with 37 additions and 1 deletions
38
src/p_spec.c
38
src/p_spec.c
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@ -3256,7 +3256,43 @@ static void P_ProcessLineSpecial(line_t *line, mobj_t *mo, sector_t *callsec)
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// This could even override existing colormaps I believe
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// -- Monster Iestyn 14/06/18
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for (secnum = -1; (secnum = P_FindSectorFromLineTag(line, secnum)) >= 0 ;)
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sectors[secnum].extra_colormap = line->frontsector->extra_colormap;
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{
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if (line->flags & ML_NOCLIMB) // set alpha only
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{
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if (sectors[secnum].extra_colormap) // does nothing without an existing colormap
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{
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extracolormap_t *dest_colormap = R_CopyColormap(sectors[secnum].extra_colormap, false);
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INT16 alpha;
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// base rgba
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alpha = (line->flags & ML_DONTPEGBOTTOM && line->sidenum[1] != 0xFFFF) ?
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(sides[line->sidenum[1]].textureoffset >> FRACBITS)
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: R_GetRgbaA(line->frontsector->extra_colormap->rgba);
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if (line->flags & ML_EFFECT3) // relative calc
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alpha = max(min(R_GetRgbaA(sectors[secnum].extra_colormap->rgba) + alpha, 25), 0);
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dest_colormap->rgba = (dest_colormap->rgba & 0xFFFFFF) + (alpha << 24);
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// fade rgba
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alpha = (line->flags & ML_DONTPEGBOTTOM && line->sidenum[1] != 0xFFFF) ?
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(sides[line->sidenum[1]].rowoffset >> FRACBITS)
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: R_GetRgbaA(line->frontsector->extra_colormap->fadergba);
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if (line->flags & ML_EFFECT3) // relative calc
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alpha = max(min(R_GetRgbaA(sectors[secnum].extra_colormap->fadergba) + alpha, 25), 0);
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dest_colormap->fadergba = (dest_colormap->fadergba & 0xFFFFFF) + (alpha << 24);
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if (!(sectors[secnum].extra_colormap = R_GetColormapFromList(dest_colormap)))
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{
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dest_colormap->colormap = R_CreateLightTable(dest_colormap);
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R_AddColormapToList(dest_colormap);
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sectors[secnum].extra_colormap = dest_colormap;
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}
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else
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memset(dest_colormap, 0, sizeof(*dest_colormap));
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}
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}
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else
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sectors[secnum].extra_colormap = line->frontsector->extra_colormap;
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}
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break;
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case 448: // Change skybox viewpoint/centerpoint
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