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(svn r10485) -Codechange: add a callback mechanism to determine whether building an industry is allowed at a given location.

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This commit is contained in:
rubidium
2007-07-09 13:21:49 +00:00
parent c29b4a7720
commit bb8923c336
5 changed files with 109 additions and 17 deletions
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28
src/industry_cmd.cpp
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@@ -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] = {