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Codefix: some coding style improvements

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Rubidium
2025-12-06 09:05:31 +01:00
committed by rubidium42
parent 1829f7926d
commit 1445aa9543
2 changed files with 38 additions and 12 deletions
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25
src/rail_cmd.cpp
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@@ -2214,6 +2214,25 @@ static void DrawTrackBitsOverlay(TileInfo *ti, TrackBits track, const RailTypeIn
}
}
/**
* Returns which of the 5 junction-'Rail underlays' to use for the given track bits.
* See https://newgrf-specs.tt-wiki.net/wiki/Action3/Railtypes for the cases.
* @pre The track bits describe a junction, so at least two bits are set.
* @param track The track bits to consider.
* @return The offset in the five junction ground sprites.
*/
static int GetJunctionGroundSpriteOffset(TrackBits track)
{
/* If none of the tracks end up in the NE corner, return the ground sprite
* where the NE of the tile is not covered. Repeat for the other directions.
* What remains are junctions where all directions are covered. */
if ((track & TRACK_BIT_3WAY_NE) == 0) return 0;
if ((track & TRACK_BIT_3WAY_SW) == 0) return 1;
if ((track & TRACK_BIT_3WAY_NW) == 0) return 2;
if ((track & TRACK_BIT_3WAY_SE) == 0) return 3;
return 4;
}
/**
* Draw ground sprite and track bits
* @param ti TileInfo
@@ -2289,11 +2308,7 @@ static void DrawTrackBits(TileInfo *ti, TrackBits track)
/* junction, select only ground sprite, handle track sprite later */
default:
junction = true;
if ((track & TRACK_BIT_3WAY_NE) == 0) { image = rti->base_sprites.ground; break; }
if ((track & TRACK_BIT_3WAY_SW) == 0) { image = rti->base_sprites.ground + 1; break; }
if ((track & TRACK_BIT_3WAY_NW) == 0) { image = rti->base_sprites.ground + 2; break; }
if ((track & TRACK_BIT_3WAY_SE) == 0) { image = rti->base_sprites.ground + 3; break; }
image = rti->base_sprites.ground + 4;
image = rti->base_sprites.ground + GetJunctionGroundSpriteOffset(track);
break;
}
}