File diff r4351:04a502e12263 → r4352:460a517b040f
train_cmd.c
Show inline comments
 
@@ -942,25 +942,25 @@ static void NormaliseTrainConsist(Vehicl
 
 * @param tile unused
 
 * @param p1 various bitstuffed elements
 
 * - p1 (bit  0 - 15) source vehicle index
 
 * - p1 (bit 16 - 31) what wagon to put the source wagon AFTER, XXX - INVALID_VEHICLE to make a new line
 
 * @param p2 (bit 0) move all vehicles following the source vehicle
 
 */
 
int32 CmdMoveRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 
{
 
	VehicleID s = GB(p1, 0, 16);
 
	VehicleID d = GB(p1, 16, 16);
 
	Vehicle *src, *dst, *src_head, *dst_head;
 

	
 
	if (!IsVehicleIndex(s)) return CMD_ERROR;
 
	if (!IsValidVehicleID(s)) return CMD_ERROR;
 

	
 
	src = GetVehicle(s);
 

	
 
	if (src->type != VEH_Train) return CMD_ERROR;
 

	
 
	// if nothing is selected as destination, try and find a matching vehicle to drag to.
 
	if (d == INVALID_VEHICLE) {
 
		dst = IsTrainEngine(src) ? NULL : FindGoodVehiclePos(src);
 
	} else {
 
		dst = GetVehicle(d);
 
	}
 

	
 
@@ -1221,25 +1221,25 @@ int32 CmdMoveRailVehicle(TileIndex tile,
 
}
 

	
 
/** Start/Stop a train.
 
 * @param tile unused
 
 * @param p1 train to start/stop
 
 * @param p2 unused
 
 */
 
int32 CmdStartStopTrain(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 
{
 
	Vehicle *v;
 
	uint16 callback;
 

	
 
	if (!IsVehicleIndex(p1)) return CMD_ERROR;
 
	if (!IsValidVehicleID(p1)) return CMD_ERROR;
 

	
 
	v = GetVehicle(p1);
 

	
 
	if (v->type != VEH_Train || !CheckOwnership(v->owner)) return CMD_ERROR;
 

	
 
	/* Check if this train can be started/stopped. The callback will fail or
 
	 * return 0xFF if it can. */
 
	callback = GetVehicleCallback(CBID_VEHICLE_START_STOP_CHECK, 0, 0, v->engine_type, v);
 
	if (callback != CALLBACK_FAILED && callback != 0xFF) {
 
		StringID error = GetGRFStringID(GetEngineGRFID(v->engine_type), 0xD000 + callback);
 
		return_cmd_error(error);
 
	}
 
@@ -1266,25 +1266,25 @@ int32 CmdStartStopTrain(TileIndex tile, 
 
 * - p2 = 0: only sell the single dragged wagon/engine (and any belonging rear-engines)
 
 * - p2 = 1: sell the vehicle and all vehicles following it in the chain
 
             if the wagon is dragged, don't delete the possibly belonging rear-engine to some front
 
 * - p2 = 2: when selling attached locos, rearrange all vehicles after it to separate lines;
 
 *           all wagons of the same type will go on the same line. Used by the AI currently
 
 */
 
int32 CmdSellRailWagon(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 
{
 
	Vehicle *v, *tmp, *first;
 
	Vehicle *new_f = NULL;
 
	int32 cost = 0;
 

	
 
	if (!IsVehicleIndex(p1) || p2 > 2) return CMD_ERROR;
 
	if (!IsValidVehicleID(p1) || p2 > 2) return CMD_ERROR;
 

	
 
	v = GetVehicle(p1);
 

	
 
	if (v->type != VEH_Train || !CheckOwnership(v->owner)) return CMD_ERROR;
 

	
 
	SET_EXPENSES_TYPE(EXPENSES_NEW_VEHICLES);
 

	
 
	while (IsArticulatedPart(v)) v = GetPrevVehicleInChain(v);
 
	first = GetFirstVehicleInChain(v);
 

	
 
	// make sure the vehicle is stopped in the depot
 
	if (CheckTrainStoppedInDepot(first) < 0) {
 
@@ -1662,25 +1662,25 @@ static void ReverseTrainDirection(Vehicl
 
	CLRBIT(v->u.rail.flags, VRF_REVERSING);
 
}
 

	
 
/** Reverse train.
 
 * @param tile unused
 
 * @param p1 train to reverse
 
 * @param p2 if true, reverse a unit in a train (needs to be in a depot)
 
 */
 
int32 CmdReverseTrainDirection(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 
{
 
	Vehicle *v;
 

	
 
	if (!IsVehicleIndex(p1)) return CMD_ERROR;
 
	if (!IsValidVehicleID(p1)) return CMD_ERROR;
 

	
 
	v = GetVehicle(p1);
 

	
 
	if (v->type != VEH_Train || !CheckOwnership(v->owner)) return CMD_ERROR;
 

	
 
	if (p2) {
 
		// turn a single unit around
 
		Vehicle *front;
 

	
 
		if (IsMultiheaded(v) || HASBIT(EngInfo(v->engine_type)->callbackmask, CBM_ARTIC_ENGINE)) {
 
			return_cmd_error(STR_ONLY_TURN_SINGLE_UNIT);
 
		}
 
@@ -1711,25 +1711,25 @@ int32 CmdReverseTrainDirection(TileIndex
 
	return 0;
 
}
 

	
 
/** Force a train through a red signal
 
 * @param tile unused
 
 * @param p1 train to ignore the red signal
 
 * @param p2 unused
 
 */
 
int32 CmdForceTrainProceed(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 
{
 
	Vehicle *v;
 

	
 
	if (!IsVehicleIndex(p1)) return CMD_ERROR;
 
	if (!IsValidVehicleID(p1)) return CMD_ERROR;
 

	
 
	v = GetVehicle(p1);
 

	
 
	if (v->type != VEH_Train || !CheckOwnership(v->owner)) return CMD_ERROR;
 

	
 
	if (flags & DC_EXEC) v->u.rail.force_proceed = 0x50;
 

	
 
	return 0;
 
}
 

	
 
/** Refits a train to the specified cargo type.
 
 * @param tile unused
 
@@ -1737,25 +1737,25 @@ int32 CmdForceTrainProceed(TileIndex til
 
 * param p2 various bitstuffed elements
 
 * - p2 = (bit 0-7) - the new cargo type to refit to
 
 * - p2 = (bit 8-15) - the new cargo subtype to refit to
 
 */
 
int32 CmdRefitRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 
{
 
	CargoID new_cid = GB(p2, 0, 8);
 
	byte new_subtype = GB(p2, 8, 8);
 
	Vehicle *v;
 
	int32 cost;
 
	uint num;
 

	
 
	if (!IsVehicleIndex(p1)) return CMD_ERROR;
 
	if (!IsValidVehicleID(p1)) return CMD_ERROR;
 

	
 
	v = GetVehicle(p1);
 

	
 
	if (v->type != VEH_Train || !CheckOwnership(v->owner)) return CMD_ERROR;
 
	if (CheckTrainStoppedInDepot(v) < 0) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
 

	
 
	/* Check cargo */
 
	if (new_cid > NUM_CARGO) return CMD_ERROR;
 

	
 
	SET_EXPENSES_TYPE(EXPENSES_TRAIN_RUN);
 

	
 
	cost = 0;
 
@@ -1921,25 +1921,25 @@ static TrainFindDepotData FindClosestTra
 
}
 

	
 
/** Send a train to a depot
 
 * @param tile unused
 
 * @param p1 train to send to the depot
 
 * @param p2 unused
 
 */
 
int32 CmdSendTrainToDepot(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
 
{
 
	Vehicle *v;
 
	TrainFindDepotData tfdd;
 

	
 
	if (!IsVehicleIndex(p1)) return CMD_ERROR;
 
	if (!IsValidVehicleID(p1)) return CMD_ERROR;
 

	
 
	v = GetVehicle(p1);
 

	
 
	if (v->type != VEH_Train || !CheckOwnership(v->owner)) return CMD_ERROR;
 

	
 
	if (v->vehstatus & VS_CRASHED) return CMD_ERROR;
 

	
 
	if (v->current_order.type == OT_GOTO_DEPOT) {
 
		if (flags & DC_EXEC) {
 
			if (HASBIT(v->current_order.flags, OFB_PART_OF_ORDERS)) {
 
				v->u.rail.days_since_order_progr = 0;
 
				v->cur_order_index++;