diff options
author | rubidium <rubidium@openttd.org> | 2007-09-23 19:55:42 +0000 |
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committer | rubidium <rubidium@openttd.org> | 2007-09-23 19:55:42 +0000 |
commit | fc371ad994ce4b060be355a2b3bd635852bc80fb (patch) | |
tree | a2298d4c636cb8b7a33e9425bdf01b9f5896e668 /src/newgrf_industries.cpp | |
parent | 4dca543135cac8034a5391e797711207ecf446b5 (diff) | |
download | openttd-fc371ad994ce4b060be355a2b3bd635852bc80fb.tar.xz |
(svn r11152) -Fix: GetIndustryIDAtOffset crashed when translation of the GFX ID would be needed. Fix by Belugas.
-Fix: GetIndustryIDAtOffset crashed when the industry->xy tile was not an industry tile.
Diffstat (limited to 'src/newgrf_industries.cpp')
-rw-r--r-- | src/newgrf_industries.cpp | 73 |
1 files changed, 35 insertions, 38 deletions
diff --git a/src/newgrf_industries.cpp b/src/newgrf_industries.cpp index 1c33f4b2e..06b18d70e 100644 --- a/src/newgrf_industries.cpp +++ b/src/newgrf_industries.cpp @@ -78,47 +78,44 @@ static uint GetClosestWaterDistance(TileIndex tile, bool water) /** Make an analysis of a tile and check for its belonging to the same * industry, and/or the same grf file - * @param new_tile TileIndex of the tile to query - * @param old_tile TileIndex of the reference tile - * @param i Industry to which old_tile belongs to + * @param tile TileIndex of the tile to query + * @param i Industry to which to compare the tile to * @return value encoded as per NFO specs */ -uint32 GetIndustryIDAtOffset(TileIndex new_tile, TileIndex old_tile, const Industry *i) +uint32 GetIndustryIDAtOffset(TileIndex tile, const Industry *i) { - if (IsTileType(new_tile, MP_INDUSTRY)) { // Is this an industry tile? - - if (GetIndustryIndex(new_tile) == i->index) { // Does it belong to the same industry? - IndustryGfx gfx = GetIndustryGfx(new_tile); - const IndustryTileSpec *indtsp = GetIndustryTileSpec(gfx); - const IndustryTileSpec *indold = GetIndustryTileSpec(GetIndustryGfx(old_tile)); - - if (gfx < NEW_INDUSTRYOFFSET) { // Does it belongs to an old type? - /* It is an old tile. We have to see if it's been overriden */ - if (indtsp->grf_prop.override == INVALID_INDUSTRYTILE) { // has it been overridden? - return 0xFF << 8 | gfx; // no. Tag FF + the gfx id of that tile - } else { // yes. FInd out if it is from the same grf file or not - const IndustryTileSpec *old_tile_ovr = GetIndustryTileSpec(indtsp->grf_prop.override); - - if (old_tile_ovr->grf_prop.grffile->grfid == indold->grf_prop.grffile->grfid) { - return old_tile_ovr->grf_prop.local_id; // same grf file - } else { - return 0xFFFE; // not the same grf file - } - } - } else { - if (indtsp->grf_prop.spritegroup != NULL) { // tile has a spritegroup ? - if (indtsp->grf_prop.grffile->grfid == indold->grf_prop.grffile->grfid) { // same industry, same grf ? - return indtsp->grf_prop.local_id; - } else { - return 0xFFFE; // Defined in another grf file - } - } else { // tile has no spritegroup - return 0xFF << 8 | indtsp->grf_prop.subst_id; // so just give him the substitute - } - } - } + if (!IsTileType(tile, MP_INDUSTRY) || GetIndustryIndex(tile) == i->index) { + /* No industry and/or the tile does not have the same industry as the one we match it with */ + return 0xFFFF; } - return 0xFFFF; // tile is not an industry one or does not belong to the current industry + IndustryGfx gfx = GetCleanIndustryGfx(tile); + const IndustryTileSpec *indtsp = GetIndustryTileSpec(gfx); + const IndustrySpec *indold = GetIndustrySpec(i->type); + + if (gfx < NEW_INDUSTRYOFFSET) { // Does it belongs to an old type? + /* It is an old tile. We have to see if it's been overriden */ + if (indtsp->grf_prop.override == INVALID_INDUSTRYTILE) { // has it been overridden? + return 0xFF << 8 | gfx; // no. Tag FF + the gfx id of that tile + } + /* Not overriden */ + const IndustryTileSpec *tile_ovr = GetIndustryTileSpec(indtsp->grf_prop.override); + + if (tile_ovr->grf_prop.grffile->grfid == indold->grf_prop.grffile->grfid) { + return tile_ovr->grf_prop.local_id; // same grf file + } else { + return 0xFFFE; // not the same grf file + } + } + /* Not an 'old type' tile */ + if (indtsp->grf_prop.spritegroup != NULL) { // tile has a spritegroup ? + if (indtsp->grf_prop.grffile->grfid == indold->grf_prop.grffile->grfid) { // same industry, same grf ? + return indtsp->grf_prop.local_id; + } else { + return 0xFFFE; // Defined in another grf file + } + } + /* The tile has no spritegroup */ + return 0xFF << 8 | indtsp->grf_prop.subst_id; // so just give him the substitute } static uint32 GetClosestIndustry(TileIndex tile, IndustryType type, const Industry *current) @@ -215,7 +212,7 @@ uint32 IndustryGetVariable(const ResolverObject *object, byte variable, byte par case 0x44: return industry->selected_layout; /* Get industry ID at offset param */ - case 0x60: return GetIndustryIDAtOffset(GetNearbyTile(parameter, industry->xy), tile, industry); + case 0x60: return GetIndustryIDAtOffset(GetNearbyTile(parameter, industry->xy), industry); /* Get random tile bits at offset param */ case 0x61: |