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(svn r18513) -Fix [FS#3379]: sometimes NewGRFs throw invalid data at OpenTTD and that triggered a check... that if a has to be between b and c (inclusive) then c must be bigger than or equal to b (and definitely not smaller)

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rubidium 2009-12-16 00:06:51 +00:00
parent 35b8c8367e
commit f0728ca1d1
1 changed files with 2 additions and 2 deletions
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src/newgrf_industrytiles.cpp
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@ -253,10 +253,10 @@ bool DrawNewIndustryTile(TileInfo *ti, Industry *i, IndustryGfx gfx, const Indus
NewIndustryTileResolver(&object, gfx, ti->tile, i);
group = SpriteGroup::Resolve(inds->grf_prop.spritegroup, &object);
if (group == NULL || group->type != SGT_TILELAYOUT) {
const TileLayoutSpriteGroup *tlgroup = (const TileLayoutSpriteGroup *)group;
if (group == NULL || group->type != SGT_TILELAYOUT || tlgroup->num_sprites == 0) {
return false;
} else {
const TileLayoutSpriteGroup *tlgroup = (const TileLayoutSpriteGroup *)group;
/* Limit the building stage to the number of stages supplied. */
byte stage = GetIndustryConstructionStage(ti->tile);
stage = Clamp(stage - 4 + tlgroup->num_sprites, 0, tlgroup->num_sprites - 1);