autoreplace.nut

function Autoreplace() {
	Info("Autoreplace started");
	AutoreplaceRVs(AIRoad.ROADTYPE_ROAD);
	AutoreplaceSmallPlanes();
	AutoreplaceBigPlanes();
	Info("Autoreplace list updated by Autoreplace()");
}

function AutoreplaceBigPlanes() {
	local engine_list=AIEngineList(AIVehicle.VT_AIR);
	engine_list.Valuate(AIEngine.GetPlaneType);
	engine_list.KeepValue(AIAirport.PT_BIG_PLANE);

	for(local engine_existing = engine_list.Begin(); engine_list.HasNext(); engine_existing = engine_list.Next()) {
		local cargo_list=AICargoList();
		local cargo;
		for (cargo = cargo_list.Begin(); cargo_list.HasNext(); cargo = cargo_list.Next()) {
			if (AIEngine.CanRefitCargo(engine_existing, cargo))break;
		}
	
	local distance = AIEngine.GetMaximumOrderDistance(engine_existing);
	if (AIEngine.IsBuildable(AIGroup.GetEngineReplacement(AIGroup.GROUP_ALL, engine_existing))==false) {
		local engine_best = (AirBuilder(this, 0)).FindAircraft(AIAirport.AT_LARGE, cargo, 1, Money.Inflate(100000000), distance)
		if (engine_best != engine_existing && engine_best != null) {
			AIGroup.SetAutoReplace(AIGroup.GROUP_ALL, engine_existing, engine_best);
			Info(AIEngine.GetName(engine_existing) + " will be replaced with " + AIEngine.GetName(engine_best));
			}
		}
	}
}

function AutoreplaceSmallPlanes() {
	local engine_list=AIEngineList(AIVehicle.VT_AIR);
	engine_list.Valuate(AIEngine.GetPlaneType);
	engine_list.KeepValue(AIAirport.PT_SMALL_PLANE);

	for(local engine_existing = engine_list.Begin(); engine_list.HasNext(); engine_existing = engine_list.Next()) {
		local cargo_list=AICargoList();
		local cargo;
		for (cargo = cargo_list.Begin(); cargo_list.HasNext(); cargo = cargo_list.Next()) {
			if (AIEngine.CanRefitCargo(engine_existing, cargo)) {
				break;
			}
		}

		if (AIEngine.IsBuildable(AIGroup.GetEngineReplacement(AIGroup.GROUP_ALL, engine_existing))==false) {
		local engine_best = (AirBuilder(this, 0)).FindAircraft(AIAirport.AT_SMALL, cargo, 1, Money.Inflate(100000000), AIEngine.GetMaximumOrderDistance(engine_existing))
		if (engine_best != null)
			if (engine_best != engine_existing && engine_best != null) {
				AIGroup.SetAutoReplace(AIGroup.GROUP_ALL, engine_existing, engine_best);
				Info(AIEngine.GetName(engine_existing) + " will be replaced by " + AIEngine.GetName(engine_best));
			}
		}
	}
}

function AutoreplaceRVs(roadtype) {
	AIRoad.SetCurrentRoadType(roadtype)
	local engine_list = AIEngineList(AIVehicle.VT_ROAD);
	engine_list.Valuate(AIEngine.GetRoadType);
	engine_list.KeepValue(roadtype);

	for(local engine = engine_list.Begin(); engine_list.HasNext(); engine = engine_list.Next()) {
		local veh_list = AIVehicleList()
		veh_list.Valuate(AIVehicle.GetEngineType);
		veh_list.KeepValue(engine);
		if (veh_list.Count() != 0) {
			local cargo;
			local cargo_list = AICargoList();
			for (cargo = cargo_list.Begin(); cargo_list.HasNext(); cargo = cargo_list.Next()) {
				if (AIVehicle.GetCapacity(veh_list.Begin(), cargo) > 0) {
					break;
				}
			}
			AutoreplaceRV(engine, cargo);
		}
	}
}

function AutoreplaceRV(engine, cargo) {
	local engine_best = (RoadBuilder(this, 0)).GetReplacement(engine, cargo);
	AIGroup.SetAutoReplace(AIGroup.GROUP_ALL, engine, engine_best);
	Info(AIEngine.GetName(engine) + " will be replaced by " + AIEngine.GetName(engine_best));
}