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-rw-r--r--src/engine.cpp34
1 files changed, 27 insertions, 7 deletions
diff --git a/src/engine.cpp b/src/engine.cpp
index c8a256f10..dfe24168b 100644
--- a/src/engine.cpp
+++ b/src/engine.cpp
@@ -32,10 +32,9 @@
DEFINE_OLD_POOL_GENERIC(Engine, Engine)
-enum {
- YEAR_ENGINE_AGING_STOPS = 2050,
-};
-
+/** Year that engine aging stops. Engines will not reduce in reliability
+ * and no more engines will be introduced */
+Year _year_engine_aging_stops;
/** Number of engines of each vehicle type in original engine data */
const uint8 _engine_counts[4] = {
@@ -231,11 +230,32 @@ static void CalcEngineReliability(Engine *e)
InvalidateWindowClasses(WC_REPLACE_VEHICLE);
}
+void SetYearEngineAgingStops()
+{
+ /* Determine last engine aging year, default to 2050 as previously. */
+ _year_engine_aging_stops = 2050;
+
+ const Engine *e;
+ FOR_ALL_ENGINES(e) {
+ const EngineInfo *ei = &e->info;
+
+ /* Exclude certain engines */
+ if (!HasBit(ei->climates, _settings_game.game_creation.landscape)) continue;
+ if (e->type == VEH_TRAIN && e->u.rail.railveh_type == RAILVEH_WAGON) continue;
+
+ /* Base year ending date on half the model life */
+ YearMonthDay ymd;
+ ConvertDateToYMD(ei->base_intro + (ei->lifelength * 366) / 2, &ymd);
+
+ _year_engine_aging_stops = max(_year_engine_aging_stops, ymd.year);
+ }
+}
+
void StartupEngines()
{
Engine *e;
/* Aging of vehicles stops, so account for that when starting late */
- const Date aging_date = min(_date, ConvertYMDToDate(YEAR_ENGINE_AGING_STOPS, 0, 1));
+ const Date aging_date = min(_date, ConvertYMDToDate(_year_engine_aging_stops, 0, 1));
FOR_ALL_ENGINES(e) {
const EngineInfo *ei = &e->info;
@@ -336,7 +356,7 @@ static CompanyID GetBestCompany(uint8 pp)
void EnginesDailyLoop()
{
- if (_cur_year >= YEAR_ENGINE_AGING_STOPS) return;
+ if (_cur_year >= _year_engine_aging_stops) return;
Engine *e;
FOR_ALL_ENGINES(e) {
@@ -447,7 +467,7 @@ static void NewVehicleAvailable(Engine *e)
void EnginesMonthlyLoop()
{
- if (_cur_year < YEAR_ENGINE_AGING_STOPS) {
+ if (_cur_year < _year_engine_aging_stops) {
Engine *e;
FOR_ALL_ENGINES(e) {
/* Age the vehicle */