cpp/openttd-patchpack/source Changeset - r26813:ed6c84a945a0

Changeset - r26813:ed6c84a945a0

Parent rev.

Child rev.

[Not reviewed]

master

0 1 0

Rubidium - 17 months ago 2023-01-26 21:59:32
rubidium@openttd.org

Codechange: make rounding code clearer

-O1 already optimizes it to the original hand optimized magic code

1 file changed with 3 insertions and 1 deletions:

src/elrail.cpp

0 comments (0 inline, 0 general)

src/elrail.cpp

➞

Show inline comments

@@ @@ -234,7 +234,9 @@ static int GetPCPElevation(TileIndex til @@
 	int z = GetSlopePixelZ(TileX(tile) * TILE_SIZE + std::min<int8>(x_pcp_offsets[PCPpos], TILE_SIZE - 1),
 	                       TileY(tile) * TILE_SIZE + std::min<int8>(y_pcp_offsets[PCPpos], TILE_SIZE - 1));
 	return (z + 2) & ~3; // this means z = (z + TILE_HEIGHT / 4) / (TILE_HEIGHT / 2) * (TILE_HEIGHT / 2);
 	/* Round the Z to the nearest half tile height. */
 	static const uint HALF_TILE_HEIGHT = TILE_HEIGHT / 2;
 	return (z + HALF_TILE_HEIGHT / 2) / HALF_TILE_HEIGHT * HALF_TILE_HEIGHT;
+}
 /**

0 comments (0 inline, 0 general)