Backport Kart Krew's fix for the 1px HOM with horizon lines
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@ -2693,6 +2693,7 @@ void R_StoreWallRange(INT32 start, INT32 stop)
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if (linedef->special == 41) { // HORIZON LINES
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if (linedef->special == 41) { // HORIZON LINES
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topstep = bottomstep = 0;
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topstep = bottomstep = 0;
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topfrac = bottomfrac = (centeryfrac>>4);
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topfrac = bottomfrac = (centeryfrac>>4);
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topfrac++; // Prevent 1px HOM
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} else {
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} else {
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topstep = -FixedMul (rw_scalestep, worldtop);
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topstep = -FixedMul (rw_scalestep, worldtop);
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topfrac = (centeryfrac>>4) - FixedMul (worldtop, rw_scale);
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topfrac = (centeryfrac>>4) - FixedMul (worldtop, rw_scale);
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