belugas@6835: /* $Id$ */
belugas@6835: 
belugas@6835: /** @file newgrf_industries.cpp */
belugas@6835: 
belugas@6835: #include "stdafx.h"
belugas@6835: #include "openttd.h"
belugas@6835: #include "debug.h"
belugas@6835: #include "functions.h"
belugas@6835: #include "macros.h"
rubidium@7207: #include "variables.h"
rubidium@7207: #include "landscape.h"
rubidium@7207: #include "table/strings.h"
belugas@6835: #include "industry.h"
belugas@6868: #include "industry_map.h"
belugas@6835: #include "newgrf.h"
belugas@6835: #include "newgrf_callbacks.h"
belugas@6835: #include "newgrf_spritegroup.h"
belugas@6835: #include "newgrf_industries.h"
belugas@6835: #include "newgrf_commons.h"
rubidium@7207: #include "newgrf_text.h"
rubidium@7207: #include "newgrf_town.h"
rubidium@7186: #include "date.h"
belugas@6835: 
belugas@6835: /* Since the industry IDs defined by the GRF file don't necessarily correlate
belugas@6835:  * to those used by the game, the IDs used for overriding old industries must be
belugas@6835:  * translated when the idustry spec is set. */
belugas@6835: IndustryOverrideManager _industry_mngr(NEW_INDUSTRYOFFSET, NUM_INDUSTRYTYPES, INVALID_INDUSTRYTYPE);
belugas@7000: IndustryTileOverrideManager _industile_mngr(NEW_INDUSTRYTILEOFFSET, NUM_INDUSTRYTILES, INVALID_INDUSTRYTILE);
belugas@6835: 
rubidium@7233: IndustryType MapNewGRFIndustryType(IndustryType grf_type, uint32 grf_id)
rubidium@7233: {
rubidium@7233: 	if (grf_type == IT_INVALID) return IT_INVALID;
rubidium@7233: 	if (!HASBIT(grf_type, 7)) return GB(grf_type, 0, 6);
rubidium@7233: 
rubidium@7233: 	return _industry_mngr.GetID(GB(grf_type, 0, 6), grf_id);
rubidium@7233: }
rubidium@7233: 
belugas@6835: /**
belugas@6835:  * Finds the distance for the closest tile with water/land given a tile
belugas@6835:  * @param tile  the tile to find the distance too
belugas@6835:  * @param water whether to find water or land
belugas@6835:  * @note FAILS when an industry should be seen as water
belugas@6835:  */
belugas@6835: static uint GetClosestWaterDistance(TileIndex tile, bool water)
belugas@6835: {
belugas@6835: 	TileIndex t;
rubidium@7236: 	int best_dist;
rubidium@7236: 	for (t = 0; t < MapSize(); t++) {
belugas@6835: 		if (IsTileType(t, MP_WATER) == water) break;
belugas@6835: 	}
belugas@6835: 	best_dist = DistanceManhattan(tile, t);
belugas@6835: 
belugas@6835: 	for (; t < MapSize(); t++) {
rubidium@7236: 		int dist = DistanceManhattan(tile, t);
belugas@6835: 		if (dist < best_dist) {
belugas@6835: 			if (IsTileType(t, MP_WATER) == water) best_dist = dist;
belugas@6835: 		} else {
belugas@6835: 			/* When the Y distance between the current row and the 'source' tile
belugas@6835: 			 * is larger than the best distance, we've found the best distance */
rubidium@7236: 			if ((int)TileY(t) - (int)TileY(tile) > best_dist) break;
belugas@6835: 			if (TileX(tile) > TileX(t)) {
belugas@6835: 				/* We can safely skip this many tiles; from here all tiles have a
belugas@6835: 				 * higher or equal distance than the best distance */
belugas@6835: 				t |= MapMaxX();
belugas@6835: 				continue;
belugas@6835: 			} else {
belugas@6835: 				/* We can safely skip this many tiles; up to here all tiles have a
belugas@6835: 				 * higher or equal distance than the best distance */
rubidium@7236: 				t += max(best_dist - dist, 0);
belugas@6835: 				continue;
belugas@6835: 			}
belugas@6835: 		}
belugas@6835: 	}
belugas@6835: 
belugas@6835: 	return best_dist;
belugas@6835: }
belugas@6835: 
belugas@6868: /** Make an analysis of a tile and check for its belonging to the same
belugas@6868:  * industry, and/or the same grf file
belugas@6868:  * @param new_tile TileIndex of the tile to query
belugas@6868:  * @param old_tile TileINdex of teh reference tile
belugas@6868:  * @param i Industry to which old_tile belongs to
belugas@6868:  * @return value encoded as per NFO specs */
belugas@6868: uint32 GetIndustryIDAtOffset(TileIndex new_tile, TileIndex old_tile, const Industry *i)
belugas@6868: {
belugas@6868: 	if (IsTileType(new_tile, MP_INDUSTRY)) {  // Is this an industry tile?
belugas@6868: 
belugas@6868: 		if (GetIndustryIndex(new_tile) == i->index) {  // Does it belong to the same industry?
belugas@6868: 			IndustryGfx gfx = GetIndustryGfx(new_tile);
belugas@6868: 			const IndustryTileSpec *indtsp = GetIndustryTileSpec(gfx);
belugas@6868: 			const IndustryTileSpec *indold = GetIndustryTileSpec(GetIndustryGfx(old_tile));
belugas@6868: 
belugas@6868: 			if (gfx < NEW_INDUSTRYOFFSET) {  // Does it belongs to an old type?
belugas@6868: 				/* It is an old tile.  We have to see if it's been overriden */
belugas@6868: 				if (indtsp->grf_prop.override == INVALID_INDUSTRYTILE) {  // has it been overridden?
belugas@6868: 					return 0xFF << 8 | gfx; // no. Tag FF + the gfx id of that tile
belugas@6868: 				} else { // yes.  FInd out if it is from the same grf file or not
belugas@6868: 					const IndustryTileSpec *old_tile_ovr = GetIndustryTileSpec(indtsp->grf_prop.override);
belugas@6868: 
belugas@6868: 					if (old_tile_ovr->grf_prop.grffile->grfid == indold->grf_prop.grffile->grfid) {
belugas@6868: 						return old_tile_ovr->grf_prop.local_id; // same grf file
belugas@6868: 					} else {
belugas@6868: 						return 0xFFFE; // not the same grf file
belugas@6868: 					}
belugas@6868: 				}
belugas@6868: 			} else {
belugas@6868: 				if (indtsp->grf_prop.spritegroup != NULL) {  // tile has a spritegroup ?
belugas@6868: 					if (indtsp->grf_prop.grffile->grfid == indold->grf_prop.grffile->grfid) {  // same industry, same grf ?
belugas@6868: 						return indtsp->grf_prop.local_id;
belugas@6868: 					} else {
belugas@6868: 						return 0xFFFE;  // Defined in another grf file
belugas@6868: 					}
belugas@6868: 				} else {  // tile has no spritegroup
belugas@6868: 					return 0xFF << 8 | indtsp->grf_prop.subst_id;  // so just give him the substitute
belugas@6868: 				}
belugas@6868: 			}
belugas@6868: 		}
belugas@6868: 	}
belugas@6868: 
belugas@6868: 	return 0xFFFF; // tile is not an industry one or  does not belong to the current industry
belugas@6868: }
belugas@6868: 
rubidium@7233: static uint32 GetClosestIndustry(TileIndex tile, IndustryType type, const Industry *current)
rubidium@7233: {
rubidium@7233: 	uint32 best_dist = MAX_UVALUE(uint32);
rubidium@7233: 	const Industry *i;
rubidium@7233: 	FOR_ALL_INDUSTRIES(i) {
rubidium@7233: 		if (i->type != type || i == current) continue;
rubidium@7233: 
rubidium@7233: 		best_dist = min(best_dist, DistanceManhattan(tile, i->xy));
rubidium@7233: 	}
rubidium@7233: 
rubidium@7233: 	return best_dist;
rubidium@7233: }
rubidium@7233: 
belugas@6835: /** This function implements the industries variables that newGRF defines.
belugas@6835:  * @param variable that is queried
belugas@6835:  * @param parameter unused
belugas@6835:  * @param available will return false if ever the variable asked for does not exist
belugas@6835:  * @param ind is of course the industry we are inquiring
belugas@6835:  * @return the value stored in the corresponding variable*/
belugas@6835: uint32 IndustryGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
belugas@6835: {
belugas@6835: 	const Industry *industry = object->u.industry.ind;
rubidium@7207: 	TileIndex tile = object->u.industry.tile;
belugas@6835: 	const IndustrySpec *indspec = GetIndustrySpec(industry->type);
belugas@6835: 
belugas@6835: 	switch (variable) {
belugas@6835: 		case 0x40:
belugas@6835: 		case 0x41:
belugas@6835: 		case 0x42: { // waiting cargo, but only if those two callback flags are set
belugas@6835: 			uint16 callback = indspec->callback_flags;
rubidium@7166: 			if (HASBIT(callback, CBM_IND_PRODUCTION_CARGO_ARRIVAL) || HASBIT(callback, CBM_IND_PRODUCTION_256_TICKS)) {
rubidium@7191: 				return min(industry->incoming_cargo_waiting[variable - 0x40], (uint16)0xFFFF);
belugas@6835: 			} else {
belugas@6835: 				return 0;
belugas@6835: 			}
belugas@6835: 		}
rubidium@7207: 
rubidium@7207: 		/* Manhattan distance of closes dry/water tile */
rubidium@7207: 		case 0x43: return GetClosestWaterDistance(tile, (object->u.industry_location.spec->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0);
belugas@6835: 
belugas@6868: 		/* Get industry ID at offset param */
belugas@6868: 		case 0x60: return GetIndustryIDAtOffset(GetNearbyTile(parameter, industry->xy), tile, industry);
belugas@6835: 
belugas@6835: 		case 0x61: return 0; // Get random tile bits at offset param
belugas@6835: 
rubidium@7234: 		/* Land info of nearby tiles */
rubidium@7234: 		case 0x62: return GetNearbyIndustryTileInformation(parameter, tile, INVALID_INDUSTRY);
rubidium@7234: 
rubidium@7234: 		/* Animation stage of nearby tiles */
rubidium@7234: 		case 0x63 : {
rubidium@7234: 			tile = GetNearbyTile(parameter, tile);
rubidium@7234: 			if (IsTileType(tile, MP_INDUSTRY) && GetIndustryByTile(tile) == industry) {
rubidium@7234: 				return GetIndustryAnimationState(tile);
rubidium@7234: 			}
rubidium@7234: 			return 0xFFFFFFFF;
rubidium@7234: 		}
rubidium@7234: 
rubidium@7234: 		/* Distance of nearest industry of given type */
rubidium@7233: 		case 0x64: return GetClosestIndustry(tile, MapNewGRFIndustryType(parameter, indspec->grf_prop.grffile->grfid), industry); // Distance of nearest industry of given type
belugas@6835: 		/* Get town zone and Manhattan distance of closest town */
belugas@6835:  		case 0x65: return GetTownRadiusGroup(industry->town, tile) << 16 | min(DistanceManhattan(tile, industry->town->xy), 0xFFFF);
belugas@6835: 		/* Get square of Euclidian distance of closes town */
belugas@6835: 		case 0x66: return GetTownRadiusGroup(industry->town, tile) << 16 | min(DistanceSquare(tile, industry->town->xy), 0xFFFF);
belugas@6835: 
belugas@6835: 		/* Count of industry, distance of closest instance
belugas@6835: 		 * format is rr(reserved) cc(count)  dddd(manhattan distance of closest sister)
belugas@6835: 		 * A lot more should be done, since it has to check for local id, grf id etc...
belugas@6835: 		 * let's just say it is a beginning ;) */
belugas@6835: 		case 0x67: return GetIndustryTypeCount(industry->type) << 16 | 0;
belugas@6835: 
belugas@6835: 		/* Industry structure access*/
belugas@6835: 		case 0x80: return industry->xy;
belugas@6835: 		case 0x81: return GB(industry->xy, 8, 8);
belugas@6835: 		/* Pointer to the town the industry is associated with */
rubidium@7191: 		case 0x82: return industry->town->index;
belugas@6835: 		case 0x83:
belugas@6835: 		case 0x84:
rubidium@7186: 		case 0x85: DEBUG(grf, 0, "NewGRFs shouldn't be doing pointer magic"); break; // not supported
belugas@6835: 		case 0x86: return industry->width;
belugas@6835: 		case 0x87: return industry->height;// xy dimensions
belugas@6835: 		/*  */
belugas@6835: 		case 0x88:
belugas@6835: 		case 0x89: return indspec->produced_cargo[variable - 0x88];
rubidium@7165: 		case 0x8A: return industry->produced_cargo_waiting[0];
rubidium@7165: 		case 0x8B: return GB(industry->produced_cargo_waiting[0], 8, 8);
rubidium@7165: 		case 0x8C: return industry->produced_cargo_waiting[1];
rubidium@7165: 		case 0x8D: return GB(industry->produced_cargo_waiting[1], 8, 8);
belugas@6835: 		case 0x8E:
belugas@6835: 		case 0x8F: return industry->production_rate[variable - 0x8E];
belugas@6835: 		case 0x90:
belugas@6835: 		case 0x91:
belugas@6835: 		case 0x92: return indspec->accepts_cargo[variable - 0x90];
belugas@6835: 		case 0x93: return industry->prod_level;
belugas@6835: 		/* amount of cargo produced so far THIS month. */
belugas@6835: 		case 0x94: return industry->this_month_production[0];
belugas@6835: 		case 0x95: return GB(industry->this_month_production[0], 8, 8);
belugas@6835: 		case 0x96: return industry->this_month_production[1];
belugas@6835: 		case 0x97: return GB(industry->this_month_production[1], 8, 8);
belugas@6835: 		/* amount of cargo transported so far THIS month. */
belugas@6835: 		case 0x98: return industry->this_month_transported[0];
belugas@6835: 		case 0x99: return GB(industry->this_month_transported[0], 8, 8);
belugas@6835: 		case 0x9A: return industry->this_month_transported[1];
belugas@6835: 		case 0x9B: return GB(industry->this_month_transported[0], 8, 8);
belugas@6835: 		/* fraction of cargo transported LAST month. */
belugas@6835: 		case 0x9C:
belugas@6835: 		case 0x9D: return industry->last_month_pct_transported[variable - 0x9C];
belugas@6835: 		/* amount of cargo produced LAST month. */
belugas@6835: 		case 0x9E: return industry->last_month_production[0];
belugas@6835: 		case 0x9F: return GB(industry->last_month_production[0], 8, 8);
belugas@6835: 		case 0xA0: return industry->last_month_production[1];
belugas@6835: 		case 0xA1: return GB(industry->last_month_production[1], 8, 8);
belugas@6835: 		/* amount of cargo transported last month. */
belugas@6835: 		case 0xA2: return industry->last_month_transported[0];
belugas@6835: 		case 0xA3: return GB(industry->last_month_transported[0], 8, 8);
belugas@6835: 		case 0xA4: return industry->last_month_transported[1];
belugas@6835: 		case 0xA5: return GB(industry->last_month_transported[0], 8, 8);
belugas@6835: 
belugas@6835: 		case 0xA6: return industry->type;
rubidium@7186: 		case 0xA7: return industry->founder;
belugas@6835: 		case 0xA8: return industry->random_color;
rubidium@7186: 		case 0xA9: return clamp(0, industry->last_prod_year - 1920, 255);
belugas@6835: 		case 0xAA: return industry->counter;
belugas@6835: 		case 0xAB: return GB(industry->counter, 8, 8);
belugas@6835: 		case 0xAC: return industry->was_cargo_delivered;
rubidium@7186: 
rubidium@7186: 		case 0xB0: return clamp(0, industry->construction_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 65535); // Date when built since 1920 (in days)
rubidium@7186: 		case 0xB3: return industry->construction_type; // Construction type
rubidium@7186: 		case 0xB4: return clamp(0, industry->last_cargo_accepted_at - DAYS_TILL_ORIGINAL_BASE_YEAR, 65535); // Date last cargo accepted since 1920 (in days)
belugas@6835: 	}
belugas@6835: 
belugas@6835: 	DEBUG(grf, 1, "Unhandled industry property 0x%X", variable);
belugas@6835: 
belugas@6835: 	*available = false;
belugas@6835: 	return (uint32)-1;
belugas@6835: }
belugas@6835: 
belugas@6835: static const SpriteGroup *IndustryResolveReal(const ResolverObject *object, const SpriteGroup *group)
belugas@6835: {
belugas@6835: 	/* IndustryTile do not have 'real' groups */
belugas@6835: 	return NULL;
belugas@6835: }
belugas@6835: 
belugas@6884: static void NewIndustryResolver(ResolverObject *res, TileIndex tile, Industry *indus)
belugas@6835: {
belugas@6884: 	res->GetRandomBits = IndustryTileGetRandomBits;
belugas@6884: 	res->GetTriggers   = IndustryTileGetTriggers;
belugas@6884: 	res->SetTriggers   = IndustryTileSetTriggers;
belugas@6835: 	res->GetVariable   = IndustryGetVariable;
belugas@6835: 	res->ResolveReal   = IndustryResolveReal;
belugas@6835: 
belugas@6835: 	res->u.industry.tile = tile;
belugas@6835: 	res->u.industry.ind  = indus;
belugas@6884: 	res->u.industry.gfx  = INVALID_INDUSTRYTILE;
belugas@6835: 
belugas@6835: 	res->callback        = 0;
belugas@6835: 	res->callback_param1 = 0;
belugas@6835: 	res->callback_param2 = 0;
belugas@6835: 	res->last_value      = 0;
belugas@6835: 	res->trigger         = 0;
belugas@6835: 	res->reseed          = 0;
belugas@6835: }
belugas@6835: 
belugas@7102: uint16 GetIndustryCallback(uint16 callback, uint32 param1, uint32 param2, Industry *industry, IndustryType type, TileIndex tile)
belugas@6835: {
belugas@6835: 	ResolverObject object;
belugas@6835: 	const SpriteGroup *group;
belugas@6835: 
belugas@6884: 	NewIndustryResolver(&object, tile, industry);
belugas@6835: 	object.callback = callback;
belugas@6835: 	object.callback_param1 = param1;
belugas@6835: 	object.callback_param2 = param2;
belugas@6835: 
belugas@7102: 	group = Resolve(GetIndustrySpec(type)->grf_prop.spritegroup, &object);
belugas@6835: 	if (group == NULL || group->type != SGT_CALLBACK) return CALLBACK_FAILED;
belugas@6835: 
belugas@6835: 	return group->g.callback.result;
belugas@6835: }
rubidium@7168: 
rubidium@7207: uint32 IndustryLocationGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
rubidium@7207: {
rubidium@7207: 	TileIndex tile = object->u.industry_location.tile;
rubidium@7207: 
rubidium@7207: 	if (object->scope == VSG_SCOPE_PARENT) {
rubidium@7207: 		return TownGetVariable(variable, parameter, available, ClosestTownFromTile(tile, (uint)-1));
rubidium@7207: 	}
rubidium@7207: 
rubidium@7207: 	switch (variable) {
rubidium@7234: 		/* Land info of nearby tiles */
rubidium@7234: 		case 0x62: return GetNearbyIndustryTileInformation(parameter, tile, INVALID_INDUSTRY);
rubidium@7234: 
rubidium@7234: 		/* Distance of nearest industry of given type */
rubidium@7234: 		case 0x64: return GetClosestIndustry(tile, MapNewGRFIndustryType(parameter, object->u.industry_location.spec->grf_prop.grffile->grfid), NULL);
rubidium@7207: 
rubidium@7207: 		/* Location where to build the industry */
rubidium@7207: 		case 0x80: return tile;
rubidium@7207: 		case 0x81: return GB(tile, 8, 8);
rubidium@7234: 
rubidium@7207: 		/* Pointer to the town the industry is associated with */
rubidium@7207: 		case 0x82: return ClosestTownFromTile(tile, (uint)-1)->index;
rubidium@7207: 		case 0x83:
rubidium@7207: 		case 0x84:
rubidium@7207: 		case 0x85: DEBUG(grf, 0, "NewGRFs shouldn't be doing pointer magic"); break; // not supported
rubidium@7207: 
rubidium@7207: 		/* Number of the layout */
rubidium@7207: 		case 0x86: return object->u.industry_location.itspec_index;
rubidium@7207: 
rubidium@7207: 		/* Ground type */
rubidium@7207: 		case 0x87: return GetTerrainType(tile);
rubidium@7207: 
rubidium@7207: 		/* Town zone */
rubidium@7207: 		case 0x88: return GetTownRadiusGroup(ClosestTownFromTile(tile, (uint)-1), tile);
rubidium@7207: 
rubidium@7207: 		/* Manhattan distance of the closest town */
rubidium@7207: 		case 0x89: return min(DistanceManhattan(ClosestTownFromTile(tile, (uint)-1)->xy, tile), 255);
rubidium@7207: 
rubidium@7207: 		/* Lowest height of the tile */
rubidium@7207: 		case 0x8A: return GetTileZ(tile);
rubidium@7207: 
rubidium@7207: 		/* Distance to the nearest water/land tile */
rubidium@7207: 		case 0x8B: return GetClosestWaterDistance(tile, (object->u.industry_location.spec->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0);
rubidium@7207: 
rubidium@7207: 		/* Square of Euclidian distance from town */
rubidium@7207: 		case 0x8D: return min(DistanceSquare(ClosestTownFromTile(tile, (uint)-1)->xy, tile), 65535);
rubidium@7207: 	}
rubidium@7207: 
rubidium@7233: 	DEBUG(grf, 1, "Unhandled location industry property 0x%X", variable);
rubidium@7207: 
rubidium@7207: 	*available = false;
rubidium@7207: 	return (uint32)-1;
rubidium@7207: }
rubidium@7207: 
rubidium@7207: bool CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, uint itspec_index)
rubidium@7207: {
rubidium@7207: 	const IndustrySpec *indspec = GetIndustrySpec(type);
rubidium@7207: 
rubidium@7207: 	ResolverObject object;
rubidium@7207: 	const SpriteGroup *group;
rubidium@7207: 
rubidium@7207: 	NewIndustryResolver(&object, tile, NULL);
rubidium@7207: 	object.GetVariable = IndustryLocationGetVariable;
rubidium@7207: 	object.callback = CBID_INDUSTRY_LOCATION;
rubidium@7207: 	object.u.industry_location.tile = tile;
rubidium@7207: 	object.u.industry_location.spec = indspec;
rubidium@7207: 	object.u.industry_location.itspec_index = itspec_index;
rubidium@7207: 
rubidium@7207: 	group = Resolve(GetIndustrySpec(type)->grf_prop.spritegroup, &object);
rubidium@7207: 
rubidium@7207: 	if (group == NULL || group->type != SGT_CALLBACK) return false;
rubidium@7207: 
rubidium@7207: 	switch (group->g.callback.result) {
rubidium@7207: 		case 0x400: return true;
rubidium@7209: 		case 0x401: _error_message = STR_0239_SITE_UNSUITABLE; break;
rubidium@7209: 		case 0x402: _error_message = STR_0317_CAN_ONLY_BE_BUILT_IN_RAINFOREST; break;
rubidium@7209: 		case 0x403: _error_message = STR_0318_CAN_ONLY_BE_BUILT_IN_DESERT; break;
rubidium@7209: 		default: _error_message = GetGRFStringID(indspec->grf_prop.grffile->grfid, 0xD000 + group->g.callback.result); break;
rubidium@7207: 	}
rubidium@7207: 
rubidium@7207: 	return false;
rubidium@7207: }
rubidium@7207: 
belugas@7260: bool CheckIfCallBackAllowsAvailability(IndustryType type, IndustryAvailabilityCallType creation_type)
belugas@7260: {
belugas@7260: 	const IndustrySpec *indspec = GetIndustrySpec(type);
belugas@7260: 
belugas@7260: 	if (HASBIT(indspec->callback_flags, CBM_IND_AVAILABLE)) {
belugas@7260: 		uint16 res = GetIndustryCallback(CBID_INDUSTRY_AVAILABLE, 0, creation_type, NULL, type, INVALID_TILE);
belugas@7260: 		if (res != CALLBACK_FAILED) {
belugas@7260: 			return (res == 0);
belugas@7260: 		}
belugas@7260: 	}
belugas@7260: 	return true;
belugas@7260: }
belugas@7260: 
rubidium@7168: static int32 DerefIndProd(uint field, bool use_register)
rubidium@7168: {
rubidium@7168: 	return use_register ? (int32)GetRegister(field) : field;
rubidium@7168: }
rubidium@7168: 
rubidium@7168: /**
rubidium@7168:  * Get the industry production callback and apply it to the industry.
rubidium@7168:  * @param ind    the industry this callback has to be called for
rubidium@7168:  * @param reason the reason it is called (0 = incoming cargo, 1 = periodic tick callback)
rubidium@7168:  */
rubidium@7168: void IndustryProductionCallback(Industry *ind, int reason)
rubidium@7168: {
rubidium@7168: 	ResolverObject object;
rubidium@7237: 	NewIndustryResolver(&object, ind->xy, ind);
rubidium@7168: 	object.callback_param2 = reason;
rubidium@7168: 
rubidium@7168: 	for (uint loop = 0;; loop++) {
rubidium@7168: 		SB(object.callback_param2, 8, 16, loop);
rubidium@7168: 		const SpriteGroup *group = Resolve(GetIndustrySpec(ind->type)->grf_prop.spritegroup, &object);
rubidium@7168: 		if (group == NULL || group->type != SGT_INDUSTRY_PRODUCTION) break;
rubidium@7168: 
rubidium@7168: 		bool deref = (group->g.indprod.version == 1);
rubidium@7168: 
rubidium@7168: 		for (uint i = 0; i < 3; i++) {
rubidium@7168: 			ind->incoming_cargo_waiting[i] = clamp(ind->incoming_cargo_waiting[i] - DerefIndProd(group->g.indprod.substract_input[i], deref), 0, 0xFFFF);
rubidium@7168: 		}
rubidium@7168: 		for (uint i = 0; i < 2; i++) {
rubidium@7168: 			ind->produced_cargo_waiting[i] = clamp(ind->produced_cargo_waiting[i] + DerefIndProd(group->g.indprod.add_output[i], deref), 0, 0xFFFF);
rubidium@7168: 		}
rubidium@7168: 
rubidium@7168: 		int32 again = DerefIndProd(group->g.indprod.again, deref);
rubidium@7168: 		if (again == 0) break;
rubidium@7168: 
rubidium@7168: 		SB(object.callback_param2, 24, 8, again);
rubidium@7168: 	}
rubidium@7195: 
rubidium@7195: 	InvalidateWindow(WC_INDUSTRY_VIEW, ind->index);
rubidium@7168: }