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-rw-r--r--src/industry_cmd.cpp25
-rw-r--r--src/newgrf_callbacks.h4
-rw-r--r--src/table/newgrf_debug_data.h1
3 files changed, 25 insertions, 5 deletions
diff --git a/src/industry_cmd.cpp b/src/industry_cmd.cpp
index f331f3a21..e5329e15b 100644
--- a/src/industry_cmd.cpp
+++ b/src/industry_cmd.cpp
@@ -1655,8 +1655,6 @@ static void DoCreateNewIndustry(Industry *i, TileIndex tile, IndustryType type,
i->last_month_transported[1] = 0;
i->was_cargo_delivered = false;
i->last_prod_year = _cur_year;
- i->last_month_production[0] = i->production_rate[0] * 8;
- i->last_month_production[1] = i->production_rate[1] * 8;
i->founder = founder;
i->construction_date = _date;
@@ -1668,12 +1666,29 @@ static void DoCreateNewIndustry(Industry *i, TileIndex tile, IndustryType type,
* else, chosen layout + 1 */
i->selected_layout = layout + 1;
- if (!_generating_world) i->last_month_production[0] = i->last_month_production[1] = 0;
-
i->prod_level = PRODLEVEL_DEFAULT;
/* Call callbacks after the regular fields got initialised. */
+ if (HasBit(indspec->callback_mask, CBM_IND_PROD_CHANGE_BUILD)) {
+ uint16 res = GetIndustryCallback(CBID_INDUSTRY_PROD_CHANGE_BUILD, 0, Random(), i, type, INVALID_TILE);
+ if (res != CALLBACK_FAILED) {
+ if (res < PRODLEVEL_MINIMUM || res > PRODLEVEL_MAXIMUM) {
+ ErrorUnknownCallbackResult(indspec->grf_prop.grffile->grfid, CBID_INDUSTRY_PROD_CHANGE_BUILD, res);
+ } else {
+ i->prod_level = res;
+ i->RecomputeProductionMultipliers();
+ }
+ }
+ }
+
+ if (_generating_world) {
+ i->last_month_production[0] = i->production_rate[0] * 8;
+ i->last_month_production[1] = i->production_rate[1] * 8;
+ } else {
+ i->last_month_production[0] = i->last_month_production[1] = 0;
+ }
+
if (HasBit(indspec->callback_mask, CBM_IND_DECIDE_COLOUR)) {
uint16 res = GetIndustryCallback(CBID_INDUSTRY_DECIDE_COLOUR, 0, 0, i, type, INVALID_TILE);
if (res != CALLBACK_FAILED) {
@@ -2741,7 +2756,7 @@ bool IndustrySpec::UsesSmoothEconomy() const
{
return _settings_game.economy.smooth_economy &&
!(HasBit(this->callback_mask, CBM_IND_PRODUCTION_256_TICKS) || HasBit(this->callback_mask, CBM_IND_PRODUCTION_CARGO_ARRIVAL)) && // production callbacks
- !(HasBit(this->callback_mask, CBM_IND_MONTHLYPROD_CHANGE) || HasBit(this->callback_mask, CBM_IND_PRODUCTION_CHANGE)); // production change callbacks
+ !(HasBit(this->callback_mask, CBM_IND_MONTHLYPROD_CHANGE) || HasBit(this->callback_mask, CBM_IND_PRODUCTION_CHANGE) || HasBit(this->callback_mask, CBM_IND_PROD_CHANGE_BUILD)); // production change callbacks
}
static CommandCost TerraformTile_Industry(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)
diff --git a/src/newgrf_callbacks.h b/src/newgrf_callbacks.h
index 546ba630d..e96d06803 100644
--- a/src/newgrf_callbacks.h
+++ b/src/newgrf_callbacks.h
@@ -275,6 +275,9 @@ enum CallbackID {
/** Called to determine the cost factor for refitting a vehicle. */
CBID_VEHICLE_REFIT_COST = 0x15E, // 15 bit callback
+
+ /** Called when industry is built to set initial production level. */
+ CBID_INDUSTRY_PROD_CHANGE_BUILD = 0x15F, // 15 bit callback
};
/**
@@ -355,6 +358,7 @@ enum IndustryCallbackMask {
CBM_IND_DECIDE_COLOUR = 11, ///< give a custom colour to newly build industries
CBM_IND_INPUT_CARGO_TYPES = 12, ///< customize the cargoes the industry requires
CBM_IND_OUTPUT_CARGO_TYPES = 13, ///< customize the cargoes the industry produces
+ CBM_IND_PROD_CHANGE_BUILD = 14, ///< initialise production level on construction
};
/**
diff --git a/src/table/newgrf_debug_data.h b/src/table/newgrf_debug_data.h
index 040a275b1..3ea83176d 100644
--- a/src/table/newgrf_debug_data.h
+++ b/src/table/newgrf_debug_data.h
@@ -265,6 +265,7 @@ static const NICallback _nic_industries[] = {
NICI(CBID_INDUSTRY_DECIDE_COLOUR, CBM_IND_DECIDE_COLOUR),
NICI(CBID_INDUSTRY_INPUT_CARGO_TYPES, CBM_IND_INPUT_CARGO_TYPES),
NICI(CBID_INDUSTRY_OUTPUT_CARGO_TYPES, CBM_IND_OUTPUT_CARGO_TYPES),
+ NICI(CBID_INDUSTRY_PROD_CHANGE_BUILD, CBM_IND_PROD_CHANGE_BUILD),
NIC_END()
};