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(svn r13348) -Fix: an industry does not always need foundations; in the case of NewGRFs an industry can be built on a steep slope, however when 'querying' the foundation type of an industry we neglected the fact that these steep slope tiles do not have a foundation. As a result of this when one built a structure requiring foundations on a tile SW or SE of a steep slope industry tile it would try to apply the foundation on the steep slope to determine whether to draw the wall of the foundation and trigger an assert.

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rubidium 2008-05-31 22:43:42 +00:00
parent fa81f5412f
commit 723792cf08
1 changed files with 14 additions and 0 deletions
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14
src/industry_cmd.cpp
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@ -334,6 +334,20 @@ static uint GetSlopeZ_Industry(TileIndex tile, uint x, uint y)
static Foundation GetFoundation_Industry(TileIndex tile, Slope tileh)
{
IndustryGfx gfx = GetIndustryGfx(tile);
/* For NewGRF industry tiles we might not be drawing a foundation. We need to
* account for this, otherwise we might be applying a FOUNDATION_LEVELED
* on a steep slope which is not allowed. Furthermore other structures should
* draw the wall of the foundation in this case.
*/
if (gfx >= NEW_INDUSTRYTILEOFFSET) {
const IndustryTileSpec *indts = GetIndustryTileSpec(gfx);
if (indts->grf_prop.spritegroup != NULL && HasBit(indts->callback_flags, CBM_INDT_DRAW_FOUNDATIONS)) {
uint32 callback_res = GetIndustryTileCallback(CBID_INDUSTRY_DRAW_FOUNDATIONS, 0, 0, gfx, GetIndustryByTile(tile), tile);
if (callback_res == 0) return FOUNDATION_NONE;
}
}
return FlatteningFoundation(tileh);
}