src/newgrf_industries.cpp
branchgamebalance
changeset 9912 1ac8aac92385
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equal deleted inserted replaced
9911:0b8b245a2391 9912:1ac8aac92385
       
     1 /* $Id$ */
       
     2 
       
     3 /** @file newgrf_industries.cpp */
       
     4 
       
     5 #include "stdafx.h"
       
     6 #include "openttd.h"
       
     7 #include "debug.h"
       
     8 #include "functions.h"
       
     9 #include "macros.h"
       
    10 #include "industry.h"
       
    11 #include "newgrf.h"
       
    12 #include "newgrf_callbacks.h"
       
    13 #include "newgrf_spritegroup.h"
       
    14 #include "newgrf_industries.h"
       
    15 #include "newgrf_commons.h"
       
    16 
       
    17 /* Since the industry IDs defined by the GRF file don't necessarily correlate
       
    18  * to those used by the game, the IDs used for overriding old industries must be
       
    19  * translated when the idustry spec is set. */
       
    20 IndustryOverrideManager _industry_mngr(NEW_INDUSTRYOFFSET, NUM_INDUSTRYTYPES, INVALID_INDUSTRYTYPE);
       
    21 
       
    22 /**
       
    23  * Finds the distance for the closest tile with water/land given a tile
       
    24  * @param tile  the tile to find the distance too
       
    25  * @param water whether to find water or land
       
    26  * @note FAILS when an industry should be seen as water
       
    27  */
       
    28 static uint GetClosestWaterDistance(TileIndex tile, bool water)
       
    29 {
       
    30 	TileIndex t;
       
    31 	uint best_dist;
       
    32 	for (t = 1; t < MapSize(); t++) {
       
    33 		if (IsTileType(t, MP_WATER) == water) break;
       
    34 	}
       
    35 	best_dist = DistanceManhattan(tile, t);
       
    36 
       
    37 	for (; t < MapSize(); t++) {
       
    38 		uint dist = DistanceManhattan(tile, t);
       
    39 		if (dist < best_dist) {
       
    40 			if (IsTileType(t, MP_WATER) == water) best_dist = dist;
       
    41 		} else {
       
    42 			/* When the Y distance between the current row and the 'source' tile
       
    43 			 * is larger than the best distance, we've found the best distance */
       
    44 			if (TileY(t) - TileY(tile) > best_dist) return best_dist;
       
    45 			if (TileX(tile) > TileX(t)) {
       
    46 				/* We can safely skip this many tiles; from here all tiles have a
       
    47 				 * higher or equal distance than the best distance */
       
    48 				t |= MapMaxX();
       
    49 				continue;
       
    50 			} else {
       
    51 				/* We can safely skip this many tiles; up to here all tiles have a
       
    52 				 * higher or equal distance than the best distance */
       
    53 				t += best_dist - dist;
       
    54 				continue;
       
    55 			}
       
    56 		}
       
    57 	}
       
    58 
       
    59 	return best_dist;
       
    60 }
       
    61 
       
    62 /** This function implements the industries variables that newGRF defines.
       
    63  * @param variable that is queried
       
    64  * @param parameter unused
       
    65  * @param available will return false if ever the variable asked for does not exist
       
    66  * @param ind is of course the industry we are inquiring
       
    67  * @return the value stored in the corresponding variable*/
       
    68 uint32 IndustryGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
       
    69 {
       
    70 	const Industry *industry = object->u.industry.ind;
       
    71 	TileIndex tile   = object->u.industry.tile;
       
    72 	const IndustrySpec *indspec = GetIndustrySpec(industry->type);
       
    73 
       
    74 	switch (variable) {
       
    75 		case 0x40:
       
    76 		case 0x41:
       
    77 		case 0x42: { // waiting cargo, but only if those two callback flags are set
       
    78 			uint16 callback = indspec->callback_flags;
       
    79 			if (callback & (CBM_IND_PRODUCTION_CARGO_ARRIVAL | callback & CBM_IND_PRODUCTION_256_TICKS)) {
       
    80 				return max(industry->cargo_waiting[variable - 0x40], (uint16)0x7FFF);
       
    81 			} else {
       
    82 				return 0;
       
    83 			}
       
    84 		}
       
    85 		/* TODO: somehow determine whether we're in water or not */
       
    86 		case 0x43: return GetClosestWaterDistance(tile, true); // Manhattan distance of closes dry/water tile
       
    87 
       
    88 		case 0x60: { /* Get industry ID at offset param */
       
    89 			/*The parameter of this variable is an offset from the northernmost tile of the industry:
       
    90 			 * the high nibble contains the Y offset, the low one the X offset; both are unsigned.
       
    91 			 * The high word of the return value is currently reserved, and the low word can be:
       
    92 			 * 00xxh if the tile is an industry tile and was defined in the current GRF with ID xx.
       
    93 			 * FFxxh if the tile is an industry tile of an old type, and has the ID xx.
       
    94 			 * FFFEh if the tile is an industry tile that was defined in another GRF file
       
    95 			 * FFFFh if the tile isn't an industry tile, or doesn't belong to the current industry */
       
    96 			return GetIndustry(GetNearbyTile(parameter, tile))->type;
       
    97 		}
       
    98 
       
    99 		case 0x61: return 0; // Get random tile bits at offset param
       
   100 
       
   101 		case 0x62: // Land info of nearby tiles
       
   102 		case 0x63: // Animation stage of nerby tiles
       
   103 		case 0x64: break; // Distance of nearest industry of given type
       
   104 		/* Get town zone and Manhattan distance of closest town */
       
   105  		case 0x65: return industry->town->GetRadiusGroup(tile) << 16 | min(DistanceManhattan(tile, industry->town->xy), 0xFFFF);
       
   106 		/* Get square of Euclidian distance of closes town */
       
   107 		case 0x66: return industry->town->GetRadiusGroup(tile) << 16 | min(DistanceSquare(tile, industry->town->xy), 0xFFFF);
       
   108 
       
   109 		/* Count of industry, distance of closest instance
       
   110 		 * format is rr(reserved) cc(count)  dddd(manhattan distance of closest sister)
       
   111 		 * A lot more should be done, since it has to check for local id, grf id etc...
       
   112 		 * let's just say it is a beginning ;) */
       
   113 		case 0x67: return GetIndustryTypeCount(industry->type) << 16 | 0;
       
   114 
       
   115 		/* Industry founder information.
       
   116 		 * 0x10 if randomly created or from a map pre-newindustry.
       
   117 		 * Else, the company who funded it */
       
   118 		case 0xA7: return 0x10;
       
   119 
       
   120 		case 0xB0: // Date when built since 1920 (in days)
       
   121 		case 0xB3: // Construction type
       
   122 		case 0xB4: break; // Date last cargo accepted since 1920 (in days)
       
   123 
       
   124 		/* Industry structure access*/
       
   125 		case 0x80: return industry->xy;
       
   126 		case 0x81: return GB(industry->xy, 8, 8);
       
   127 		/* Pointer to the town the industry is associated with */
       
   128 		case 0x82:
       
   129 		case 0x83:
       
   130 		case 0x84:
       
   131 		case 0x85: break; // not supported
       
   132 		case 0x86: return industry->width;
       
   133 		case 0x87: return industry->height;// xy dimensions
       
   134 		/*  */
       
   135 		case 0x88:
       
   136 		case 0x89: return indspec->produced_cargo[variable - 0x88];
       
   137 		case 0x8A: return industry->cargo_waiting[0];
       
   138 		case 0x8B: return GB(industry->cargo_waiting[0], 8, 8);
       
   139 		case 0x8C: return industry->cargo_waiting[1];
       
   140 		case 0x8D: return GB(industry->cargo_waiting[1], 8, 8);
       
   141 		case 0x8E:
       
   142 		case 0x8F: return industry->production_rate[variable - 0x8E];
       
   143 		case 0x90:
       
   144 		case 0x91:
       
   145 		case 0x92: return indspec->accepts_cargo[variable - 0x90];
       
   146 		case 0x93: return industry->prod_level;
       
   147 		/* amount of cargo produced so far THIS month. */
       
   148 		case 0x94: return industry->this_month_production[0];
       
   149 		case 0x95: return GB(industry->this_month_production[0], 8, 8);
       
   150 		case 0x96: return industry->this_month_production[1];
       
   151 		case 0x97: return GB(industry->this_month_production[1], 8, 8);
       
   152 		/* amount of cargo transported so far THIS month. */
       
   153 		case 0x98: return industry->this_month_transported[0];
       
   154 		case 0x99: return GB(industry->this_month_transported[0], 8, 8);
       
   155 		case 0x9A: return industry->this_month_transported[1];
       
   156 		case 0x9B: return GB(industry->this_month_transported[0], 8, 8);
       
   157 		/* fraction of cargo transported LAST month. */
       
   158 		case 0x9C:
       
   159 		case 0x9D: return industry->last_month_pct_transported[variable - 0x9C];
       
   160 		/* amount of cargo produced LAST month. */
       
   161 		case 0x9E: return industry->last_month_production[0];
       
   162 		case 0x9F: return GB(industry->last_month_production[0], 8, 8);
       
   163 		case 0xA0: return industry->last_month_production[1];
       
   164 		case 0xA1: return GB(industry->last_month_production[1], 8, 8);
       
   165 		/* amount of cargo transported last month. */
       
   166 		case 0xA2: return industry->last_month_transported[0];
       
   167 		case 0xA3: return GB(industry->last_month_transported[0], 8, 8);
       
   168 		case 0xA4: return industry->last_month_transported[1];
       
   169 		case 0xA5: return GB(industry->last_month_transported[0], 8, 8);
       
   170 
       
   171 		case 0xA6: return industry->type;
       
   172 
       
   173 		case 0xA8: return industry->random_color;
       
   174 		case 0xA9: return industry->last_prod_year; // capped?
       
   175 		case 0xAA: return industry->counter;
       
   176 		case 0xAB: return GB(industry->counter, 8, 8);
       
   177 		case 0xAC: return industry->was_cargo_delivered;
       
   178 	}
       
   179 
       
   180 	DEBUG(grf, 1, "Unhandled industry property 0x%X", variable);
       
   181 
       
   182 	*available = false;
       
   183 	return (uint32)-1;
       
   184 }
       
   185 
       
   186 static const SpriteGroup *IndustryResolveReal(const ResolverObject *object, const SpriteGroup *group)
       
   187 {
       
   188 	/* IndustryTile do not have 'real' groups */
       
   189 	return NULL;
       
   190 }
       
   191 
       
   192 static void NewIndustryResolver(ResolverObject *res, IndustryType ind_id, TileIndex tile, Industry *indus)
       
   193 {
       
   194 	res->GetRandomBits = NULL;//IndustryTileGetRandomBits;
       
   195 	res->GetTriggers   = NULL;//IndustryTileGetTriggers;
       
   196 	res->SetTriggers   = NULL;//IndustryTileSetTriggers;
       
   197 	res->GetVariable   = IndustryGetVariable;
       
   198 	res->ResolveReal   = IndustryResolveReal;
       
   199 
       
   200 	res->u.industry.tile = tile;
       
   201 	res->u.industry.ind  = indus;
       
   202 
       
   203 	res->callback        = 0;
       
   204 	res->callback_param1 = 0;
       
   205 	res->callback_param2 = 0;
       
   206 	res->last_value      = 0;
       
   207 	res->trigger         = 0;
       
   208 	res->reseed          = 0;
       
   209 }
       
   210 
       
   211 uint16 GetIndustryCallback(uint16 callback, uint32 param1, uint32 param2, Industry *industry, TileIndex tile)
       
   212 {
       
   213 	ResolverObject object;
       
   214 	const SpriteGroup *group;
       
   215 
       
   216 	NewIndustryResolver(&object, industry->type, tile, industry);
       
   217 	object.callback = callback;
       
   218 	object.callback_param1 = param1;
       
   219 	object.callback_param2 = param2;
       
   220 
       
   221 	group = Resolve(GetIndustrySpec(industry->type)->grf_prop.spritegroup, &object);
       
   222 	if (group == NULL || group->type != SGT_CALLBACK) return CALLBACK_FAILED;
       
   223 
       
   224 	return group->g.callback.result;
       
   225 }