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| author | celestar <celestar@openttd.org> | 2005-07-16 23:47:37 +0000 |
|---|---|---|
| committer | celestar <celestar@openttd.org> | 2005-07-16 23:47:37 +0000 |
| commit | 9ca761b06534ed191b0624a6c7049db296997a73 (patch) | |
| tree | b32b3e56573203f32982f2fc2b3966529a6d1857 /waypoint.c | |
| parent | 64f6839816221873b9a5327fe038533a7d3b8a98 (diff) | |
| download | openttd-9ca761b06534ed191b0624a6c7049db296997a73.tar.xz | |
(svn r2595) -Codechange: Introduced "IsSteepTileh" to find whether a tile is steep
(i.e. spans two height levels) and use it throughout the code.
-Codechange: Add CanBuildDepotByTileh to find if a tile is suitable to
build a depot on it. Wraps some bitmagic which seems quite unreadable at
first glance
Diffstat (limited to 'waypoint.c')
| -rw-r--r-- | waypoint.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/waypoint.c b/waypoint.c index aa5d543b4..539d72b45 100644 --- a/waypoint.c +++ b/waypoint.c @@ -152,6 +152,9 @@ static Waypoint *FindDeletedWaypointCloseTo(TileIndex tile) * @param x,y coordinates where waypoint will be built * @param p1 graphics for waypoint type, bit 8 signifies custom waypoint gfx (& 0x100) * @param p2 unused + * + * @todo When checking for the tile slope, + * distingush between "Flat land required" and "land sloped in wrong direction" */ int32 CmdBuildTrainWaypoint(int x, int y, uint32 flags, uint32 p1, uint32 p2) { @@ -175,7 +178,7 @@ int32 CmdBuildTrainWaypoint(int x, int y, uint32 flags, uint32 p1, uint32 p2) tileh = GetTileSlope(tile, NULL); if (tileh != 0) { - if (!_patches.build_on_slopes || tileh & 0x10 || !(tileh & (0x3 << dir)) || !(tileh & ~(0x3 << dir))) + if (!_patches.build_on_slopes || IsSteepTileh(tileh) || !(tileh & (0x3 << dir)) || !(tileh & ~(0x3 << dir))) return_cmd_error(STR_0007_FLAT_LAND_REQUIRED); } |