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authorrubidium <rubidium@openttd.org>2007-07-09 13:21:49 +0000
committerrubidium <rubidium@openttd.org>2007-07-09 13:21:49 +0000
commite207ba425ff8739dbd46764c2a0bdaeaab7814db (patch)
tree285e9c8a4d7dfb0a935b5dee9a7c62238d372146
parentb3ed27adab732292ad8f6c979bb49e2789896cf7 (diff)
downloadopenttd-e207ba425ff8739dbd46764c2a0bdaeaab7814db.tar.xz
(svn r10485) -Codechange: add a callback mechanism to determine whether building an industry is allowed at a given location.
-rw-r--r--src/industry_cmd.cpp28
-rw-r--r--src/newgrf_callbacks.h2
-rw-r--r--src/newgrf_industries.cpp90
-rw-r--r--src/newgrf_industries.h1
-rw-r--r--src/newgrf_spritegroup.h5
5 files changed, 109 insertions, 17 deletions
diff --git a/src/industry_cmd.cpp b/src/industry_cmd.cpp
index 0ba2c0750..60e55a0a6 100644
--- a/src/industry_cmd.cpp
+++ b/src/industry_cmd.cpp
@@ -1490,26 +1490,29 @@ static void DoCreateNewIndustry(Industry *i, TileIndex tile, int type, const Ind
* @param type of industry to build
* @param flags of operations to conduct
* @param indspec pointer to industry specifications
- * @param it pointer to list of tile type to build
+ * @param itspec_index the index of the itsepc to build/fund
* @return the pointer of the newly created industry, or NULL if it failed
*/
-static Industry *CreateNewIndustryHelper(TileIndex tile, IndustryType type, uint32 flags, const IndustrySpec *indspec, const IndustryTileTable *it)
+static Industry *CreateNewIndustryHelper(TileIndex tile, IndustryType type, uint32 flags, const IndustrySpec *indspec, uint itspec_index)
{
- const Town *t;
- Industry *i;
+ const IndustryTileTable *it = indspec->table[itspec_index];
+ if (HASBIT(GetIndustrySpec(type)->callback_flags, CBM_IND_LOCATION)) {
+ if (!CheckIfCallBackAllowsCreation(tile, type, itspec_index)) return NULL;
+ /* TODO: what with things like quarries and other stuff that must not be on level ground? */
+ }
if (!CheckIfIndustryTilesAreFree(tile, it, type)) return NULL;
if (_patches.land_generator == LG_TERRAGENESIS && _generating_world && !CheckIfCanLevelIndustryPlatform(tile, 0, it, type)) return NULL;
if (!_check_new_industry_procs[indspec->check_proc](tile)) return NULL;
if (!CheckIfTooCloseToIndustry(tile, type)) return NULL;
- t = CheckMultipleIndustryInTown(tile, type);
+ const Town *t = CheckMultipleIndustryInTown(tile, type);
if (t == NULL) return NULL;
if (!CheckIfIndustryIsAllowed(tile, type, t)) return NULL;
if (!CheckSuitableIndustryPos(tile)) return NULL;
- i = AllocateIndustry();
+ Industry *i = AllocateIndustry();
if (i == NULL) return NULL;
if (flags & DC_EXEC) {
@@ -1545,19 +1548,19 @@ CommandCost CmdBuildIndustry(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
/* If the patch for raw-material industries is not on, you cannot build raw-material industries.
* Raw material industries are industries that do not accept cargo (at least for now) */
- if (_patches.raw_industry_construction == 0 && indspec->IsRawIndustry()) {
+ if (_game_mode != GM_EDITOR && _patches.raw_industry_construction == 0 && indspec->IsRawIndustry()) {
return CMD_ERROR;
}
- if (_patches.raw_industry_construction == 2 && indspec->IsRawIndustry()) {
+ if (_game_mode != GM_EDITOR && _patches.raw_industry_construction == 2 && indspec->IsRawIndustry()) {
if (flags & DC_EXEC) {
/* Prospecting has a chance to fail, however we cannot guarantee that something can
* be built on the map, so the chance gets lower when the map is fuller, but there
* is nothing we can really do about that. */
if (Random() <= indspec->prospecting_chance) {
for (int i = 0; i < 5000; i++) {
- const IndustryTileTable *it = indspec->table[RandomRange(indspec->num_table)];
- const Industry *ind = CreateNewIndustryHelper(RandomTile(), p1, flags, indspec, it);
+ uint tilespec_index = RandomRange(indspec->num_table);
+ const Industry *ind = CreateNewIndustryHelper(RandomTile(), p1, flags, indspec, tilespec_index);
if (ind != NULL) {
SetDParam(0, indspec->name);
SetDParam(1, ind->town->index);
@@ -1577,7 +1580,7 @@ CommandCost CmdBuildIndustry(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
if (--num < 0) return_cmd_error(STR_0239_SITE_UNSUITABLE);
} while (!CheckIfIndustryTilesAreFree(tile, it = itt[num], p1));
- if (CreateNewIndustryHelper(tile, p1, flags, indspec, it) == NULL) return CMD_ERROR;
+ if (CreateNewIndustryHelper(tile, p1, flags, indspec, num) == NULL) return CMD_ERROR;
}
return CommandCost(indspec->GetConstructionCost());
@@ -1587,9 +1590,8 @@ CommandCost CmdBuildIndustry(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
Industry *CreateNewIndustry(TileIndex tile, IndustryType type)
{
const IndustrySpec *indspec = GetIndustrySpec(type);
- const IndustryTileTable *it = indspec->table[RandomRange(indspec->num_table)];
- return CreateNewIndustryHelper(tile, type, DC_EXEC, indspec, it);
+ return CreateNewIndustryHelper(tile, type, DC_EXEC, indspec, RandomRange(indspec->num_table));
}
static const byte _numof_industry_table[5][11] = {
diff --git a/src/newgrf_callbacks.h b/src/newgrf_callbacks.h
index a7ed3e658..bab07c528 100644
--- a/src/newgrf_callbacks.h
+++ b/src/newgrf_callbacks.h
@@ -97,7 +97,7 @@ enum CallbackID {
CBID_INDTILE_ANIMATION_SPEED = 0x27, // not yet implemented
/* Called to determine if the given industry can be built on specific area */
- CBID_INDUSTRY_LOCATION = 0x28, // not yet implemented
+ CBID_INDUSTRY_LOCATION = 0x28,
/* Called on production changes, so it can be adjusted */
CBID_INDUSTRY_PRODUCTION_CHANGE = 0x29, // not yet implemented
diff --git a/src/newgrf_industries.cpp b/src/newgrf_industries.cpp
index 6e43322fb..323143156 100644
--- a/src/newgrf_industries.cpp
+++ b/src/newgrf_industries.cpp
@@ -7,6 +7,9 @@
#include "debug.h"
#include "functions.h"
#include "macros.h"
+#include "variables.h"
+#include "landscape.h"
+#include "table/strings.h"
#include "industry.h"
#include "industry_map.h"
#include "newgrf.h"
@@ -14,6 +17,8 @@
#include "newgrf_spritegroup.h"
#include "newgrf_industries.h"
#include "newgrf_commons.h"
+#include "newgrf_text.h"
+#include "newgrf_town.h"
#include "date.h"
/* Since the industry IDs defined by the GRF file don't necessarily correlate
@@ -116,7 +121,7 @@ uint32 GetIndustryIDAtOffset(TileIndex new_tile, TileIndex old_tile, const Indus
uint32 IndustryGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
{
const Industry *industry = object->u.industry.ind;
- TileIndex tile = object->u.industry.tile;
+ TileIndex tile = object->u.industry.tile;
const IndustrySpec *indspec = GetIndustrySpec(industry->type);
switch (variable) {
@@ -130,8 +135,9 @@ uint32 IndustryGetVariable(const ResolverObject *object, byte variable, byte par
return 0;
}
}
- /* TODO: somehow determine whether we're in water or not */
- case 0x43: return GetClosestWaterDistance(tile, true); // Manhattan distance of closes dry/water tile
+
+ /* Manhattan distance of closes dry/water tile */
+ case 0x43: return GetClosestWaterDistance(tile, (object->u.industry_location.spec->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0);
/* Get industry ID at offset param */
case 0x60: return GetIndustryIDAtOffset(GetNearbyTile(parameter, industry->xy), tile, industry);
@@ -260,6 +266,84 @@ uint16 GetIndustryCallback(uint16 callback, uint32 param1, uint32 param2, Indust
return group->g.callback.result;
}
+uint32 IndustryLocationGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
+{
+ TileIndex tile = object->u.industry_location.tile;
+
+ if (object->scope == VSG_SCOPE_PARENT) {
+ return TownGetVariable(variable, parameter, available, ClosestTownFromTile(tile, (uint)-1));
+ }
+
+ switch (variable) {
+ case 0x62: // Land info of nearby tiles
+ case 0x64: break; // Distance of nearest industry of given type
+
+ /* Location where to build the industry */
+ case 0x80: return tile;
+ case 0x81: return GB(tile, 8, 8);
+ /* Pointer to the town the industry is associated with */
+ case 0x82: return ClosestTownFromTile(tile, (uint)-1)->index;
+ case 0x83:
+ case 0x84:
+ case 0x85: DEBUG(grf, 0, "NewGRFs shouldn't be doing pointer magic"); break; // not supported
+
+ /* Number of the layout */
+ case 0x86: return object->u.industry_location.itspec_index;
+
+ /* Ground type */
+ case 0x87: return GetTerrainType(tile);
+
+ /* Town zone */
+ case 0x88: return GetTownRadiusGroup(ClosestTownFromTile(tile, (uint)-1), tile);
+
+ /* Manhattan distance of the closest town */
+ case 0x89: return min(DistanceManhattan(ClosestTownFromTile(tile, (uint)-1)->xy, tile), 255);
+
+ /* Lowest height of the tile */
+ case 0x8A: return GetTileZ(tile);
+
+ /* Distance to the nearest water/land tile */
+ case 0x8B: return GetClosestWaterDistance(tile, (object->u.industry_location.spec->behaviour & INDUSTRYBEH_BUILT_ONWATER) == 0);
+
+ /* Square of Euclidian distance from town */
+ case 0x8D: return min(DistanceSquare(ClosestTownFromTile(tile, (uint)-1)->xy, tile), 65535);
+ }
+
+ DEBUG(grf, 1, "Unhandled industry property 0x%X", variable);
+
+ *available = false;
+ return (uint32)-1;
+}
+
+bool CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, uint itspec_index)
+{
+ const IndustrySpec *indspec = GetIndustrySpec(type);
+
+ ResolverObject object;
+ const SpriteGroup *group;
+
+ NewIndustryResolver(&object, tile, NULL);
+ object.GetVariable = IndustryLocationGetVariable;
+ object.callback = CBID_INDUSTRY_LOCATION;
+ object.u.industry_location.tile = tile;
+ object.u.industry_location.spec = indspec;
+ object.u.industry_location.itspec_index = itspec_index;
+
+ group = Resolve(GetIndustrySpec(type)->grf_prop.spritegroup, &object);
+
+ if (group == NULL || group->type != SGT_CALLBACK) return false;
+
+ switch (group->g.callback.result) {
+ case 0x400: return true;
+ case 0x401: _error_message = STR_0239_SITE_UNSUITABLE;
+ case 0x402: _error_message = STR_0317_CAN_ONLY_BE_BUILT_IN_RAINFOREST;
+ case 0x403: _error_message = STR_0318_CAN_ONLY_BE_BUILT_IN_DESERT;
+ default: _error_message = GetGRFStringID(indspec->grf_prop.grffile->grfid, 0xD000 + group->g.callback.result);
+ }
+
+ return false;
+}
+
static int32 DerefIndProd(uint field, bool use_register)
{
return use_register ? (int32)GetRegister(field) : field;
diff --git a/src/newgrf_industries.h b/src/newgrf_industries.h
index 0dee9d671..997a9e3f9 100644
--- a/src/newgrf_industries.h
+++ b/src/newgrf_industries.h
@@ -13,6 +13,7 @@ uint32 IndustryGetVariable(const ResolverObject *object, byte variable, byte par
uint16 GetIndustryCallback(uint16 callback, uint32 param1, uint32 param2, Industry *industry, IndustryType type, TileIndex tile);
uint32 GetIndustryIDAtOffset(TileIndex new_tile, TileIndex old_tile, const Industry *i);
void IndustryProductionCallback(Industry *ind, int reason);
+bool CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, uint itspec_index);
/* in newgrf_industrytiles.cpp*/
uint32 IndustryTileGetRandomBits(const ResolverObject *object);
diff --git a/src/newgrf_spritegroup.h b/src/newgrf_spritegroup.h
index 02fb1f878..b7bc581d5 100644
--- a/src/newgrf_spritegroup.h
+++ b/src/newgrf_spritegroup.h
@@ -225,6 +225,11 @@ struct ResolverObject {
IndustryGfx gfx;
} industry;
struct {
+ TileIndex tile;
+ const IndustrySpec *spec;
+ uint itspec_index;
+ } industry_location;
+ struct {
const struct CargoSpec *cs;
} cargo;
} u;