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