(svn r24690) -Codechange: Add resolver classes for industry tiles.

7 files changed, 86 insertions, 302 deletions

diff --git a/src/newgrf_debug_gui.cpp b/src/newgrf_debug_gui.cpp
index a54f8ecc9..294ffafd4 100644
--- a/src/newgrf_debug_gui.cpp
+++ b/src/newgrf_debug_gui.cpp
@@ -34,6 +34,7 @@
 #include "newgrf_town.h"
 #include "newgrf_railtype.h"
 #include "newgrf_industries.h"
+#include "newgrf_industrytiles.h"
 
 #include "widgets/newgrf_debug_widget.h"
 
diff --git a/src/newgrf_industries.cpp b/src/newgrf_industries.cpp
index ae2b43c8e..0fea5d3e3 100644
--- a/src/newgrf_industries.cpp
+++ b/src/newgrf_industries.cpp
@@ -157,188 +157,6 @@ static uint32 GetCountAndDistanceOfClosestInstance(byte param_setID, byte layout
 	return count << 16 | GB(closest_dist, 0, 16);
 }
 
-/* XXX Temporarily kept for access by the industry tile resolver. */
-uint32 IndustryGetVariable(const ResolverObject *object, byte variable, uint32 parameter, bool *available)
-{
-	const Industry *industry = object->u.industry.ind;
-	TileIndex tile = object->u.industry.tile;
-	IndustryType type = object->u.industry.type;
-	const IndustrySpec *indspec = GetIndustrySpec(type);
-
-	/* Shall the variable get resolved in parent scope and are we not yet in parent scope? */
-	if (object->u.industry.gfx == INVALID_INDUSTRYTILE && object->scope == VSG_SCOPE_PARENT) {
-		/* Pass the request on to the town of the industry */
-		Town *t;
-
-		if (industry != NULL) {
-			t = industry->town;
-		} else if (tile != INVALID_TILE) {
-			t = ClosestTownFromTile(tile, UINT_MAX);
-		} else {
-			*available = false;
-			return UINT_MAX;
-		}
-
-		return TownGetVariable(variable, parameter, available, t, object->grffile);
-	}
-
-	if (industry == NULL) {
-		DEBUG(grf, 1, "Unhandled variable 0x%X (no available industry) in callback 0x%x", variable, object->callback);
-
-		*available = false;
-		return UINT_MAX;
-	}
-
-	switch (variable) {
-		case 0x40:
-		case 0x41:
-		case 0x42: { // waiting cargo, but only if those two callback flags are set
-			uint16 callback = indspec->callback_mask;
-			if (HasBit(callback, CBM_IND_PRODUCTION_CARGO_ARRIVAL) || HasBit(callback, CBM_IND_PRODUCTION_256_TICKS)) {
-				if ((indspec->behaviour & INDUSTRYBEH_PROD_MULTI_HNDLING) != 0) {
-					if (industry->prod_level == 0) return 0;
-					return min(industry->incoming_cargo_waiting[variable - 0x40] / industry->prod_level, (uint16)0xFFFF);
-				} else {
-					return min(industry->incoming_cargo_waiting[variable - 0x40], (uint16)0xFFFF);
-				}
-			} else {
-				return 0;
-			}
-		}
-
-		/* Manhattan distance of closes dry/water tile */
-		case 0x43: return GetClosestWaterDistance(tile, (indspec->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0);
-
-		/* Layout number */
-		case 0x44: return industry->selected_layout;
-
-		/* Company info */
-		case 0x45: {
-			byte colours = 0;
-			bool is_ai = false;
-
-			const Company *c = Company::GetIfValid(industry->founder);
-			if (c != NULL) {
-				const Livery *l = &c->livery[LS_DEFAULT];
-
-				is_ai = c->is_ai;
-				colours = l->colour1 + l->colour2 * 16;
-			}
-
-			return industry->founder | (is_ai ? 0x10000 : 0) | (colours << 24);
-		}
-
-		case 0x46: return industry->construction_date; // Date when built - long format - (in days)
-
-		/* Get industry ID at offset param */
-		case 0x60: return GetIndustryIDAtOffset(GetNearbyTile(parameter, industry->location.tile, false), industry, object->grffile->grfid);
-
-		/* Get random tile bits at offset param */
-		case 0x61:
-			tile = GetNearbyTile(parameter, tile, false);
-			return industry->TileBelongsToIndustry(tile) ? GetIndustryRandomBits(tile) : 0;
-
-		/* Land info of nearby tiles */
-		case 0x62: return GetNearbyIndustryTileInformation(parameter, tile, INVALID_INDUSTRY, false, object->grffile->grf_version >= 8);
-
-		/* Animation stage of nearby tiles */
-		case 0x63:
-			tile = GetNearbyTile(parameter, tile, false);
-			if (industry->TileBelongsToIndustry(tile)) {
-				return GetAnimationFrame(tile);
-			}
-			return 0xFFFFFFFF;
-
-		/* Distance of nearest industry of given type */
-		case 0x64: return GetClosestIndustry(tile, MapNewGRFIndustryType(parameter, indspec->grf_prop.grffile->grfid), industry);
-		/* Get town zone and Manhattan distance of closest town */
-		case 0x65: return GetTownRadiusGroup(industry->town, tile) << 16 | min(DistanceManhattan(tile, industry->town->xy), 0xFFFF);
-		/* Get square of Euclidian distance of closes town */
-		case 0x66: return GetTownRadiusGroup(industry->town, tile) << 16 | min(DistanceSquare(tile, industry->town->xy), 0xFFFF);
-
-		/* Count of industry, distance of closest instance
-		 * 68 is the same as 67, but with a filtering on selected layout */
-		case 0x67:
-		case 0x68: {
-			byte layout_filter = 0;
-			bool town_filter = false;
-			if (variable == 0x68) {
-				uint32 reg = GetRegister(0x101);
-				layout_filter = GB(reg, 0, 8);
-				town_filter = HasBit(reg, 8);
-			}
-			return GetCountAndDistanceOfClosestInstance(parameter, layout_filter, town_filter, industry);
-		}
-
-		/* Get a variable from the persistent storage */
-		case 0x7C: return (industry->psa != NULL) ? industry->psa->GetValue(parameter) : 0;
-
-		/* Industry structure access*/
-		case 0x80: return industry->location.tile;
-		case 0x81: return GB(industry->location.tile, 8, 8);
-		/* Pointer to the town the industry is associated with */
-		case 0x82: return industry->town->index;
-		case 0x83:
-		case 0x84:
-		case 0x85: DEBUG(grf, 0, "NewGRFs shouldn't be doing pointer magic"); break; // not supported
-		case 0x86: return industry->location.w;
-		case 0x87: return industry->location.h;// xy dimensions
-
-		case 0x88:
-		case 0x89: return industry->produced_cargo[variable - 0x88];
-		case 0x8A: return industry->produced_cargo_waiting[0];
-		case 0x8B: return GB(industry->produced_cargo_waiting[0], 8, 8);
-		case 0x8C: return industry->produced_cargo_waiting[1];
-		case 0x8D: return GB(industry->produced_cargo_waiting[1], 8, 8);
-		case 0x8E:
-		case 0x8F: return industry->production_rate[variable - 0x8E];
-		case 0x90:
-		case 0x91:
-		case 0x92: return industry->accepts_cargo[variable - 0x90];
-		case 0x93: return industry->prod_level;
-		/* amount of cargo produced so far THIS month. */
-		case 0x94: return industry->this_month_production[0];
-		case 0x95: return GB(industry->this_month_production[0], 8, 8);
-		case 0x96: return industry->this_month_production[1];
-		case 0x97: return GB(industry->this_month_production[1], 8, 8);
-		/* amount of cargo transported so far THIS month. */
-		case 0x98: return industry->this_month_transported[0];
-		case 0x99: return GB(industry->this_month_transported[0], 8, 8);
-		case 0x9A: return industry->this_month_transported[1];
-		case 0x9B: return GB(industry->this_month_transported[1], 8, 8);
-		/* fraction of cargo transported LAST month. */
-		case 0x9C:
-		case 0x9D: return industry->last_month_pct_transported[variable - 0x9C];
-		/* amount of cargo produced LAST month. */
-		case 0x9E: return industry->last_month_production[0];
-		case 0x9F: return GB(industry->last_month_production[0], 8, 8);
-		case 0xA0: return industry->last_month_production[1];
-		case 0xA1: return GB(industry->last_month_production[1], 8, 8);
-		/* amount of cargo transported last month. */
-		case 0xA2: return industry->last_month_transported[0];
-		case 0xA3: return GB(industry->last_month_transported[0], 8, 8);
-		case 0xA4: return industry->last_month_transported[1];
-		case 0xA5: return GB(industry->last_month_transported[1], 8, 8);
-
-		case 0xA6: return industry->type;
-		case 0xA7: return industry->founder;
-		case 0xA8: return industry->random_colour;
-		case 0xA9: return Clamp(industry->last_prod_year - ORIGINAL_BASE_YEAR, 0, 255);
-		case 0xAA: return industry->counter;
-		case 0xAB: return GB(industry->counter, 8, 8);
-		case 0xAC: return industry->was_cargo_delivered;
-
-		case 0xB0: return Clamp(industry->construction_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Date when built since 1920 (in days)
-		case 0xB3: return industry->construction_type; // Construction type
-		case 0xB4: return Clamp(industry->last_cargo_accepted_at - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535); // Date last cargo accepted since 1920 (in days)
-	}
-
-	DEBUG(grf, 1, "Unhandled industry variable 0x%X", variable);
-
-	*available = false;
-	return UINT_MAX;
-}
-
 /* virtual */ uint32 IndustriesScopeResolver::GetVariable(byte variable, uint32 parameter, bool *available) const
 {
 	if (this->ro->callback == CBID_INDUSTRY_LOCATION) {
diff --git a/src/newgrf_industries.h b/src/newgrf_industries.h
index acc74ee8e..3040f3555 100644
--- a/src/newgrf_industries.h
+++ b/src/newgrf_industries.h
@@ -74,7 +74,6 @@ enum IndustryAvailabilityCallType {
 };
 
 /* in newgrf_industry.cpp */
-uint32 IndustryGetVariable(const ResolverObject *object, byte variable, uint32 parameter, bool *available);
 uint16 GetIndustryCallback(CallbackID callback, uint32 param1, uint32 param2, Industry *industry, IndustryType type, TileIndex tile);
 uint32 GetIndustryIDAtOffset(TileIndex new_tile, const Industry *i, uint32 cur_grfid);
 void IndustryProductionCallback(Industry *ind, int reason);
diff --git a/src/newgrf_industrytiles.cpp b/src/newgrf_industrytiles.cpp
index dcb96c48a..b641bfe90 100644
--- a/src/newgrf_industrytiles.cpp
+++ b/src/newgrf_industrytiles.cpp
@@ -58,44 +58,39 @@ uint32 GetRelativePosition(TileIndex tile, TileIndex ind_tile)
 	return ((y & 0xF) << 20) | ((x & 0xF) << 16) | (y << 8) | x;
 }
 
-static uint32 IndustryTileGetVariable(const ResolverObject *object, byte variable, uint32 parameter, bool *available)
+/* virtual */ uint32 IndustryTileScopeResolver::GetVariable(byte variable, uint32 parameter, bool *available) const
 {
-	const Industry *inds = object->u.industry.ind;
-	TileIndex tile       = object->u.industry.tile;
-
-	if (object->scope == VSG_SCOPE_PARENT) {
-		return IndustryGetVariable(object, variable, parameter, available);
-	}
-
 	switch (variable) {
 		/* Construction state of the tile: a value between 0 and 3 */
-		case 0x40: return (IsTileType(tile, MP_INDUSTRY)) ? GetIndustryConstructionStage(tile) : 0;
+		case 0x40: return (IsTileType(this->tile, MP_INDUSTRY)) ? GetIndustryConstructionStage(this->tile) : 0;
 
 		/* Terrain type */
-		case 0x41: return GetTerrainType(tile);
+		case 0x41: return GetTerrainType(this->tile);
 
 		/* Current town zone of the tile in the nearest town */
-		case 0x42: return GetTownRadiusGroup(ClosestTownFromTile(tile, UINT_MAX), tile);
+		case 0x42: return GetTownRadiusGroup(ClosestTownFromTile(this->tile, UINT_MAX), this->tile);
 
 		/* Relative position */
-		case 0x43: return GetRelativePosition(tile, inds->location.tile);
+		case 0x43: return GetRelativePosition(this->tile, this->industry->location.tile);
 
 		/* Animation frame. Like house variable 46 but can contain anything 0..FF. */
-		case 0x44: return (IsTileType(tile, MP_INDUSTRY)) ? GetAnimationFrame(tile) : 0;
+		case 0x44: return IsTileType(this->tile, MP_INDUSTRY) ? GetAnimationFrame(this->tile) : 0;
 
 		/* Land info of nearby tiles */
-		case 0x60: return GetNearbyIndustryTileInformation(parameter, tile, inds == NULL ? (IndustryID)INVALID_INDUSTRY : inds->index, true, object->grffile->grf_version >= 8);
+		case 0x60: return GetNearbyIndustryTileInformation(parameter, this->tile,
+				this->industry == NULL ? (IndustryID)INVALID_INDUSTRY : this->industry->index, true, this->ro->grffile->grf_version >= 8);
 
 		/* Animation stage of nearby tiles */
-		case 0x61:
-			tile = GetNearbyTile(parameter, tile);
-			if (IsTileType(tile, MP_INDUSTRY) && Industry::GetByTile(tile) == inds) {
+		case 0x61: {
+			TileIndex tile = GetNearbyTile(parameter, this->tile);
+			if (IsTileType(tile, MP_INDUSTRY) && Industry::GetByTile(tile) == this->industry) {
 				return GetAnimationFrame(tile);
 			}
 			return UINT_MAX;
+		}
 
 		/* Get industry tile ID at offset */
-		case 0x62: return GetIndustryIDAtOffset(GetNearbyTile(parameter, tile), inds, object->grffile->grfid);
+		case 0x62: return GetIndustryIDAtOffset(GetNearbyTile(parameter, this->tile), this->industry, this->ro->grffile->grfid);
 	}
 
 	DEBUG(grf, 1, "Unhandled industry tile variable 0x%X", variable);
@@ -104,93 +99,57 @@ static uint32 IndustryTileGetVariable(const ResolverObject *object, byte variabl
 	return UINT_MAX;
 }
 
-static const SpriteGroup *IndustryTileResolveReal(const ResolverObject *object, const RealSpriteGroup *group)
+/* virtual */ const SpriteGroup *IndustryTileResolverObject::ResolveReal(const RealSpriteGroup *group) const
 {
 	/* IndustryTile do not have 'real' groups.  Or do they?? */
 	return NULL;
 }
 
-static uint32 IndustryTileGetRandomBits(const ResolverObject *object)
+/* virtual */ uint32 IndustryTileScopeResolver::GetRandomBits() const
 {
-	const TileIndex tile = object->u.industry.tile;
-	const Industry *ind = object->u.industry.ind;
-	assert(ind != NULL && IsValidTile(tile));
-	assert(ind->index == INVALID_INDUSTRY || IsTileType(tile, MP_INDUSTRY));
-
-	return (object->scope == VSG_SCOPE_SELF) ?
-			(ind->index != INVALID_INDUSTRY ? GetIndustryRandomBits(tile) : 0) :
-			ind->random;
+	assert(this->industry != NULL && IsValidTile(this->tile));
+	assert(this->industry->index == INVALID_INDUSTRY || IsTileType(this->tile, MP_INDUSTRY));
+
+	return (this->industry->index != INVALID_INDUSTRY) ? GetIndustryRandomBits(this->tile) : 0;
 }
 
-static uint32 IndustryTileGetTriggers(const ResolverObject *object)
+/* virtual */ uint32 IndustryTileScopeResolver::GetTriggers() const
 {
-	const TileIndex tile = object->u.industry.tile;
-	const Industry *ind = object->u.industry.ind;
-	assert(ind != NULL && IsValidTile(tile));
-	assert(ind->index == INVALID_INDUSTRY || IsTileType(tile, MP_INDUSTRY));
-	if (ind->index == INVALID_INDUSTRY) return 0;
-	return (object->scope == VSG_SCOPE_SELF) ? GetIndustryTriggers(tile) : ind->random_triggers;
+	assert(this->industry != NULL && IsValidTile(this->tile));
+	assert(this->industry->index == INVALID_INDUSTRY || IsTileType(this->tile, MP_INDUSTRY));
+	if (this->industry->index == INVALID_INDUSTRY) return 0;
+	return GetIndustryTriggers(this->tile);
 }
 
-static void IndustryTileSetTriggers(const ResolverObject *object, int triggers)
+/* virtual */ void IndustryTileScopeResolver::SetTriggers(int triggers) const
 {
-	const TileIndex tile = object->u.industry.tile;
-	Industry *ind = object->u.industry.ind;
-	assert(ind != NULL && ind->index != INVALID_INDUSTRY && IsValidTile(tile) && IsTileType(tile, MP_INDUSTRY));
-
-	if (object->scope == VSG_SCOPE_SELF) {
-		SetIndustryTriggers(tile, triggers);
-	} else {
-		ind->random_triggers = triggers;
-	}
+	assert(this->industry != NULL && this->industry->index != INVALID_INDUSTRY && IsValidTile(this->tile) && IsTileType(this->tile, MP_INDUSTRY));
+	SetIndustryTriggers(this->tile, triggers);
 }
 
 /**
- * Store a value into the persistent storage of the object's parent.
- * @param object Object that we want to query.
- * @param pos Position in the persistent storage to use.
- * @param value Value to store.
+ * Get the associated NewGRF file from the industry graphics.
+ * @param gfx Graphics to query.
+ * @return Grf file associated with the graphics, if any.
  */
-void IndustryTileStorePSA(ResolverObject *object, uint pos, int32 value)
+static const GRFFile *GetIndTileGrffile(IndustryGfx gfx)
 {
-	Industry *ind = object->u.industry.ind;
-	if (object->scope != VSG_SCOPE_PARENT || ind->index == INVALID_INDUSTRY) return;
-
-	if (ind->psa == NULL) {
-		/* There is no need to create a storage if the value is zero. */
-		if (value == 0) return;
-
-		/* Create storage on first modification. */
-		const IndustrySpec *indsp = GetIndustrySpec(ind->type);
-		uint32 grfid = (indsp->grf_prop.grffile != NULL) ? indsp->grf_prop.grffile->grfid : 0;
-		assert(PersistentStorage::CanAllocateItem());
-		ind->psa = new PersistentStorage(grfid);
-	}
-
-	ind->psa->StoreValue(pos, value);
+	const IndustryTileSpec *its = GetIndustryTileSpec(gfx);
+	return (its != NULL) ? its->grf_prop.grffile : NULL;
 }
 
-static void NewIndustryTileResolver(ResolverObject *res, IndustryGfx gfx, TileIndex tile, Industry *indus)
+IndustryTileResolverObject::IndustryTileResolverObject(IndustryGfx gfx, TileIndex tile, Industry *indus,
+			CallbackID callback, uint32 callback_param1, uint32 callback_param2)
+	: ResolverObject(GetIndTileGrffile(gfx), callback, callback_param1, callback_param2),
+	indtile_scope(this, indus, tile),
+	ind_scope(this, tile, indus, indus->type)
 {
-	res->GetRandomBits = IndustryTileGetRandomBits;
-	res->GetTriggers   = IndustryTileGetTriggers;
-	res->SetTriggers   = IndustryTileSetTriggers;
-	res->GetVariable   = IndustryTileGetVariable;
-	res->ResolveRealMethod = IndustryTileResolveReal;
-	res->StorePSA      = IndustryTileStorePSA;
-
-	res->u.industry.tile = tile;
-	res->u.industry.ind  = indus;
-	res->u.industry.gfx  = gfx;
-	res->u.industry.type = indus->type;
-
-	res->callback        = CBID_NO_CALLBACK;
-	res->callback_param1 = 0;
-	res->callback_param2 = 0;
-	res->ResetState();
+}
 
-	const IndustryTileSpec *its = GetIndustryTileSpec(gfx);
-	res->grffile         = (its != NULL ? its->grf_prop.grffile : NULL);
+IndustryTileScopeResolver::IndustryTileScopeResolver(ResolverObject *ro, Industry *industry, TileIndex tile) : ScopeResolver(ro)
+{
+	this->industry = industry;
+	this->tile = tile;
 }
 
 static void IndustryDrawTileLayout(const TileInfo *ti, const TileLayoutSpriteGroup *group, byte rnd_colour, byte stage, IndustryGfx gfx)
@@ -218,18 +177,11 @@ static void IndustryDrawTileLayout(const TileInfo *ti, const TileLayoutSpriteGro
 
 uint16 GetIndustryTileCallback(CallbackID callback, uint32 param1, uint32 param2, IndustryGfx gfx_id, Industry *industry, TileIndex tile)
 {
-	ResolverObject object;
-	const SpriteGroup *group;
-
 	assert(industry != NULL && IsValidTile(tile));
 	assert(industry->index == INVALID_INDUSTRY || IsTileType(tile, MP_INDUSTRY));
 
-	NewIndustryTileResolver(&object, gfx_id, tile, industry);
-	object.callback = callback;
-	object.callback_param1 = param1;
-	object.callback_param2 = param2;
-
-	group = SpriteGroup::Resolve(GetIndustryTileSpec(gfx_id)->grf_prop.spritegroup[0], &object);
+	IndustryTileResolverObject object(gfx_id, tile, industry, callback, param1, param2);
+	const SpriteGroup *group = SpriteGroup::Resolve(GetIndustryTileSpec(gfx_id)->grf_prop.spritegroup[0], &object);
 	if (group == NULL || group->type != SGT_CALLBACK) return CALLBACK_FAILED;
 
 	return group->GetCallbackResult();
@@ -237,9 +189,6 @@ uint16 GetIndustryTileCallback(CallbackID callback, uint32 param1, uint32 param2
 
 bool DrawNewIndustryTile(TileInfo *ti, Industry *i, IndustryGfx gfx, const IndustryTileSpec *inds)
 {
-	const SpriteGroup *group;
-	ResolverObject object;
-
 	if (ti->tileh != SLOPE_FLAT) {
 		bool draw_old_one = true;
 		if (HasBit(inds->callback_mask, CBM_INDT_DRAW_FOUNDATIONS)) {
@@ -251,9 +200,9 @@ bool DrawNewIndustryTile(TileInfo *ti, Industry *i, IndustryGfx gfx, const Indus
 		if (draw_old_one) DrawFoundation(ti, FOUNDATION_LEVELED);
 	}
 
-	NewIndustryTileResolver(&object, gfx, ti->tile, i);
+	IndustryTileResolverObject object(gfx, ti->tile, i);
 
-	group = SpriteGroup::Resolve(inds->grf_prop.spritegroup[0], &object);
+	const SpriteGroup *group = SpriteGroup::Resolve(inds->grf_prop.spritegroup[0], &object);
 	if (group == NULL || group->type != SGT_TILELAYOUT) {
 		return false;
 	} else {
@@ -362,8 +311,6 @@ bool StartStopIndustryTileAnimation(const Industry *ind, IndustryAnimationTrigge
  */
 static void DoTriggerIndustryTile(TileIndex tile, IndustryTileTrigger trigger, Industry *ind, uint32 &reseed_industry)
 {
-	ResolverObject object;
-
 	assert(IsValidTile(tile) && IsTileType(tile, MP_INDUSTRY));
 
 	IndustryGfx gfx = GetIndustryGfx(tile);
@@ -371,9 +318,7 @@ static void DoTriggerIndustryTile(TileIndex tile, IndustryTileTrigger trigger, I
 
 	if (itspec->grf_prop.spritegroup[0] == NULL) return;
 
-	NewIndustryTileResolver(&object, gfx, tile, ind);
-
-	object.callback = CBID_RANDOM_TRIGGER;
+	IndustryTileResolverObject object(gfx, tile, ind, CBID_RANDOM_TRIGGER);
 	object.trigger = trigger;
 
 	const SpriteGroup *group = SpriteGroup::Resolve(itspec->grf_prop.spritegroup[0], &object);
@@ -432,12 +377,3 @@ void TriggerIndustry(Industry *ind, IndustryTileTrigger trigger)
 	DoReseedIndustry(ind, reseed_industry);
 }
 
-/**
- * Resolve a industry tile's spec and such so we can get a variable.
- * @param ro    The resolver object to fill.
- * @param index The industry tile to get the data from.
- */
-void GetIndustryTileResolver(ResolverObject *ro, uint index)
-{
-	NewIndustryTileResolver(ro, GetIndustryGfx(index), index, Industry::GetByTile(index));
-}
diff --git a/src/newgrf_industrytiles.h b/src/newgrf_industrytiles.h
index 3cb1ca828..21bb4cd15 100644
--- 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);
diff --git a/src/newgrf_spritegroup.h b/src/newgrf_spritegroup.h
index d8351ca44..b22d0fe50 100644
--- a/src/newgrf_spritegroup.h
+++ b/src/newgrf_spritegroup.h
@@ -357,12 +357,6 @@ struct ResolverObject {
 			EngineID self_type;
 			bool info_view;                ///< Indicates if the item is being drawn in an info window
 		} vehicle;
-		struct {
-			TileIndex tile;
-			Industry *ind;
-			IndustryGfx gfx;
-			IndustryType type;
-		} industry;
 	} u;
 
 	uint32 (*GetRandomBits)(const struct ResolverObject*);
diff --git a/src/table/newgrf_debug_data.h b/src/table/newgrf_debug_data.h
index 12a26aebd..6ec8df40e 100644
--- a/src/table/newgrf_debug_data.h
+++ b/src/table/newgrf_debug_data.h
@@ -241,7 +241,12 @@ class NIHIndustryTile : public NIHelper {
 	const void *GetSpec(uint index) const                { return GetIndustryTileSpec(GetIndustryGfx(index)); }
 	void SetStringParameters(uint index) const           { this->SetObjectAtStringParameters(STR_INDUSTRY_NAME, GetIndustryIndex(index), index); }
 	uint32 GetGRFID(uint index) const                    { return (this->IsInspectable(index)) ? GetIndustryTileSpec(GetIndustryGfx(index))->grf_prop.grffile->grfid : 0; }
-	void Resolve(ResolverObject *ro, uint32 index) const { extern void GetIndustryTileResolver(ResolverObject *ro, uint index); GetIndustryTileResolver(ro, index); }
+
+	/* virtual */ uint Resolve(uint index, uint var, uint param, bool *avail) const
+	{
+		IndustryTileResolverObject ro(GetIndustryGfx(index), index, Industry::GetByTile(index));
+		return ro.GetScope(ro.scope)->GetVariable(var, param, avail);
+	}
 };
 
 static const NIFeature _nif_industrytile = {