diff --git a/src/newgrf_industrytiles.h b/src/newgrf_industrytiles.h
--- a/src/newgrf_industrytiles.h
+++ b/src/newgrf_industrytiles.h
@@ -16,6 +16,37 @@
 #include "newgrf_industries.h"
 #include "core/random_func.hpp"
 
+struct IndustryTileScopeResolver : public ScopeResolver {
+	Industry *industry;
+	TileIndex tile;
+
+	IndustryTileScopeResolver(ResolverObject *ro, Industry *industry, TileIndex tile);
+
+	/* virtual */ uint32 GetRandomBits() const;
+	/* virtual */ uint32 GetVariable(byte variable, uint32 parameter, bool *available) const;
+	/* virtual */ uint32 GetTriggers() const;
+	/* virtual */ void SetTriggers(int triggers) const;
+};
+
+struct IndustryTileResolverObject : public ResolverObject {
+	IndustryTileScopeResolver indtile_scope;
+	IndustriesScopeResolver ind_scope;
+
+	IndustryTileResolverObject(IndustryGfx gfx, TileIndex tile, Industry *indus,
+			CallbackID callback = CBID_NO_CALLBACK, uint32 callback_param1 = 0, uint32 callback_param2 = 0);
+
+	/* virtual */ ScopeResolver *GetScope(VarSpriteGroupScope scope = VSG_SCOPE_SELF, byte relative = 0)
+	{
+		switch (scope) {
+			case VSG_SCOPE_SELF: return &indtile_scope;
+			case VSG_SCOPE_PARENT: return &ind_scope;
+			default: return &this->default_scope; // XXX ResolverObject::GetScope(scope, relative);
+		}
+	}
+
+	/* virtual */ const SpriteGroup *ResolveReal(const RealSpriteGroup *group) const;
+};
+
 bool DrawNewIndustryTile(TileInfo *ti, Industry *i, IndustryGfx gfx, const IndustryTileSpec *inds);
 uint16 GetIndustryTileCallback(CallbackID callback, uint32 param1, uint32 param2, IndustryGfx gfx_id, Industry *industry, TileIndex tile);
 CommandCost PerformIndustryTileSlopeCheck(TileIndex ind_base_tile, TileIndex ind_tile, const IndustryTileSpec *its, IndustryType type, IndustryGfx gfx, uint itspec_index, uint16 initial_random_bits, Owner founder, IndustryAvailabilityCallType creation_type);