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@ -30,6 +30,7 @@
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#include "company_base.h"
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#include "vehicle_func.h"
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#include "articulated_vehicles.h"
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#include "error.h"
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#include "table/strings.h"
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#include "table/engines.h"
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@ -1098,3 +1099,25 @@ bool IsEngineRefittable(EngineID engine)
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CargoID default_cargo = e->GetDefaultCargoType();
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return default_cargo != CT_INVALID && ei->refit_mask != 1U << default_cargo;
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}
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/**
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* Check for engines that have an appropriate availability.
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*/
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void CheckEngines()
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{
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const Engine *e;
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Date min_date = INT32_MAX;
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FOR_ALL_ENGINES(e) {
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if (!e->IsEnabled()) continue;
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/* We have an available engine... yay! */
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if (e->flags & ENGINE_AVAILABLE && e->company_avail != 0) return;
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/* Okay, try to find the earliest date. */
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min_date = min(min_date, e->info.base_intro);
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}
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SetDParam(0, min_date);
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ShowErrorMessage(STR_ERROR_NO_VEHICLES_AVAILABLE, STR_ERROR_NO_VEHICLES_AVAILABLE_EXPLANATION, WL_WARNING);
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}
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