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-rw-r--r--src/order_cmd.c1278
1 files changed, 1278 insertions, 0 deletions
diff --git a/src/order_cmd.c b/src/order_cmd.c
new file mode 100644
index 000000000..b510e84ea
--- /dev/null
+++ b/src/order_cmd.c
@@ -0,0 +1,1278 @@
+/* $Id$ */
+
+#include "stdafx.h"
+#include "openttd.h"
+#include "order.h"
+#include "airport.h"
+#include "depot.h"
+#include "functions.h"
+#include "table/strings.h"
+#include "vehicle.h"
+#include "waypoint.h"
+#include "command.h"
+#include "station.h"
+#include "player.h"
+#include "news.h"
+#include "saveload.h"
+#include "vehicle_gui.h"
+
+/**
+ * Called if a new block is added to the order-pool
+ */
+static void OrderPoolNewBlock(uint start_item)
+{
+ Order *order;
+
+ /* We don't use FOR_ALL here, because FOR_ALL skips invalid items.
+ * TODO - This is just a temporary stage, this will be removed. */
+ for (order = GetOrder(start_item); order != NULL; order = (order->index + 1U < GetOrderPoolSize()) ? GetOrder(order->index + 1U) : NULL) order->index = start_item++;
+}
+
+DEFINE_OLD_POOL(Order, Order, OrderPoolNewBlock, NULL)
+
+/**
+ *
+ * Unpacks a order from savegames made with TTD(Patch)
+ *
+ */
+Order UnpackOldOrder(uint16 packed)
+{
+ Order order;
+ order.type = GB(packed, 0, 4);
+ order.flags = GB(packed, 4, 4);
+ order.dest = GB(packed, 8, 8);
+ order.next = NULL;
+
+ order.refit_cargo = CT_NO_REFIT;
+ order.refit_subtype = 0;
+ order.index = 0; // avoid compiler warning
+
+ // Sanity check
+ // TTD stores invalid orders as OT_NOTHING with non-zero flags/station
+ if (order.type == OT_NOTHING && (order.flags != 0 || order.dest != 0)) {
+ order.type = OT_DUMMY;
+ order.flags = 0;
+ }
+
+ return order;
+}
+
+/**
+ *
+ * Unpacks a order from savegames with version 4 and lower
+ *
+ */
+static Order UnpackVersion4Order(uint16 packed)
+{
+ Order order;
+ order.type = GB(packed, 0, 4);
+ order.flags = GB(packed, 4, 4);
+ order.dest = GB(packed, 8, 8);
+ order.next = NULL;
+ order.index = 0; // avoid compiler warning
+ order.refit_cargo = CT_NO_REFIT;
+ order.refit_subtype = 0;
+ return order;
+}
+
+/**
+ *
+ * Updates the widgets of a vehicle which contains the order-data
+ *
+ */
+void InvalidateVehicleOrder(const Vehicle *v)
+{
+ InvalidateWindow(WC_VEHICLE_VIEW, v->index);
+ InvalidateWindow(WC_VEHICLE_ORDERS, v->index);
+}
+
+/**
+ *
+ * Swap two orders
+ *
+ */
+static void SwapOrders(Order *order1, Order *order2)
+{
+ Order temp_order;
+
+ temp_order = *order1;
+ AssignOrder(order1, *order2);
+ order1->next = order2->next;
+ AssignOrder(order2, temp_order);
+ order2->next = temp_order.next;
+}
+
+/**
+ *
+ * Allocate a new order
+ *
+ * @return Order* if a free space is found, else NULL.
+ *
+ */
+static Order *AllocateOrder(void)
+{
+ Order *order;
+
+ /* We don't use FOR_ALL here, because FOR_ALL skips invalid items.
+ * TODO - This is just a temporary stage, this will be removed. */
+ for (order = GetOrder(0); order != NULL; order = (order->index + 1U < GetOrderPoolSize()) ? GetOrder(order->index + 1U) : NULL) {
+ if (!IsValidOrder(order)) {
+ OrderID index = order->index;
+
+ memset(order, 0, sizeof(*order));
+ order->index = index;
+ order->next = NULL;
+ order->refit_cargo = CT_NO_REFIT;
+ order->refit_subtype = 0;
+
+ return order;
+ }
+ }
+
+ /* Check if we can add a block to the pool */
+ if (AddBlockToPool(&_Order_pool)) return AllocateOrder();
+
+ return NULL;
+}
+
+/**
+ *
+ * Assign data to an order (from an other order)
+ * This function makes sure that the index is maintained correctly
+ *
+ */
+void AssignOrder(Order *order, Order data)
+{
+ order->type = data.type;
+ order->flags = data.flags;
+ order->dest = data.dest;
+
+ order->refit_cargo = data.refit_cargo;
+ order->refit_subtype = data.refit_subtype;
+}
+
+
+/**
+ * Delete all news items regarding defective orders about a vehicle
+ * This could kill still valid warnings (for example about void order when just
+ * another order gets added), but assume the player will notice the problems,
+ * when (s)he's changing the orders.
+ */
+static void DeleteOrderWarnings(const Vehicle* v)
+{
+ DeleteVehicleNews(v->index, STR_TRAIN_HAS_TOO_FEW_ORDERS + (v->type - VEH_Train) * 4);
+ DeleteVehicleNews(v->index, STR_TRAIN_HAS_VOID_ORDER + (v->type - VEH_Train) * 4);
+ DeleteVehicleNews(v->index, STR_TRAIN_HAS_DUPLICATE_ENTRY + (v->type - VEH_Train) * 4);
+ DeleteVehicleNews(v->index, STR_TRAIN_HAS_INVALID_ENTRY + (v->type - VEH_Train) * 4);
+}
+
+
+/** Add an order to the orderlist of a vehicle.
+ * @param tile unused
+ * @param p1 various bitstuffed elements
+ * - p1 = (bit 0 - 15) - ID of the vehicle
+ * - p1 = (bit 16 - 31) - the selected order (if any). If the last order is given,
+ * the order will be inserted before that one
+ * only the first 8 bits used currently (bit 16 - 23) (max 255)
+ * @param p2 packed order to insert
+ */
+int32 CmdInsertOrder(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
+{
+ Vehicle *v;
+ VehicleID veh = GB(p1, 0, 16);
+ VehicleOrderID sel_ord = GB(p1, 16, 16);
+ Order new_order = UnpackOrder(p2);
+
+ if (!IsValidVehicleID(veh)) return CMD_ERROR;
+
+ v = GetVehicle(veh);
+
+ if (!CheckOwnership(v->owner)) return CMD_ERROR;
+
+ /* Check if the inserted order is to the correct destination (owner, type),
+ * and has the correct flags if any */
+ switch (new_order.type) {
+ case OT_GOTO_STATION: {
+ const Station *st;
+
+ if (!IsValidStationID(new_order.dest)) return CMD_ERROR;
+ st = GetStation(new_order.dest);
+
+ if (st->airport_type != AT_OILRIG && !IsBuoy(st) && !CheckOwnership(st->owner)) {
+ return CMD_ERROR;
+ }
+
+ switch (v->type) {
+ case VEH_Train:
+ if (!(st->facilities & FACIL_TRAIN)) return CMD_ERROR;
+ break;
+
+ case VEH_Road:
+ if (v->cargo_type == CT_PASSENGERS) {
+ if (!(st->facilities & FACIL_BUS_STOP)) return CMD_ERROR;
+ } else {
+ if (!(st->facilities & FACIL_TRUCK_STOP)) return CMD_ERROR;
+ }
+ break;
+
+ case VEH_Ship:
+ if (!(st->facilities & FACIL_DOCK)) return CMD_ERROR;
+ break;
+
+ case VEH_Aircraft:
+ if (!(st->facilities & FACIL_AIRPORT)) return CMD_ERROR;
+ break;
+
+ default: return CMD_ERROR;
+ }
+
+ /* Order flags can be any of the following for stations:
+ * [full-load | unload] [+ transfer] [+ non-stop]
+ * non-stop orders (if any) are only valid for trains */
+ switch (new_order.flags) {
+ case 0:
+ case OF_FULL_LOAD:
+ case OF_FULL_LOAD | OF_TRANSFER:
+ case OF_UNLOAD:
+ case OF_UNLOAD | OF_TRANSFER:
+ case OF_TRANSFER:
+ break;
+
+ case OF_NON_STOP:
+ case OF_NON_STOP | OF_FULL_LOAD:
+ case OF_NON_STOP | OF_FULL_LOAD | OF_TRANSFER:
+ case OF_NON_STOP | OF_UNLOAD:
+ case OF_NON_STOP | OF_UNLOAD | OF_TRANSFER:
+ case OF_NON_STOP | OF_TRANSFER:
+ if (v->type != VEH_Train) return CMD_ERROR;
+ break;
+
+ default: return CMD_ERROR;
+ }
+ break;
+ }
+
+ case OT_GOTO_DEPOT: {
+ if (v->type == VEH_Aircraft) {
+ const Station* st;
+
+ if (!IsValidStationID(new_order.dest)) return CMD_ERROR;
+ st = GetStation(new_order.dest);
+
+ if ((st->airport_type != AT_OILRIG && !CheckOwnership(st->owner)) ||
+ !(st->facilities & FACIL_AIRPORT) ||
+ GetAirport(st->airport_type)->nof_depots == 0) {
+ return CMD_ERROR;
+ }
+ } else {
+ const Depot* dp;
+
+ if (!IsValidDepotID(new_order.dest)) return CMD_ERROR;
+ dp = GetDepot(new_order.dest);
+
+ if (!CheckOwnership(GetTileOwner(dp->xy))) return CMD_ERROR;
+
+ switch (v->type) {
+ case VEH_Train:
+ if (!IsTileDepotType(dp->xy, TRANSPORT_RAIL)) return CMD_ERROR;
+ break;
+
+ case VEH_Road:
+ if (!IsTileDepotType(dp->xy, TRANSPORT_ROAD)) return CMD_ERROR;
+ break;
+
+ case VEH_Ship:
+ if (!IsTileDepotType(dp->xy, TRANSPORT_WATER)) return CMD_ERROR;
+ break;
+
+ default: return CMD_ERROR;
+ }
+ }
+
+ /* Order flags can be any of the following for depots:
+ * order [+ halt] [+ non-stop]
+ * non-stop orders (if any) are only valid for trains */
+ switch (new_order.flags) {
+ case OF_PART_OF_ORDERS:
+ case OF_PART_OF_ORDERS | OF_HALT_IN_DEPOT:
+ break;
+
+ case OF_NON_STOP | OF_PART_OF_ORDERS:
+ case OF_NON_STOP | OF_PART_OF_ORDERS | OF_HALT_IN_DEPOT:
+ if (v->type != VEH_Train) return CMD_ERROR;
+ break;
+
+ default: return CMD_ERROR;
+ }
+ break;
+ }
+
+ case OT_GOTO_WAYPOINT: {
+ const Waypoint* wp;
+
+ if (v->type != VEH_Train) return CMD_ERROR;
+
+ if (!IsValidWaypointID(new_order.dest)) return CMD_ERROR;
+ wp = GetWaypoint(new_order.dest);
+
+ if (!CheckOwnership(GetTileOwner(wp->xy))) return CMD_ERROR;
+
+ /* Order flags can be any of the following for waypoints:
+ * [non-stop]
+ * non-stop orders (if any) are only valid for trains */
+ switch (new_order.flags) {
+ case 0: break;
+
+ case OF_NON_STOP:
+ if (v->type != VEH_Train) return CMD_ERROR;
+ break;
+
+ default: return CMD_ERROR;
+ }
+ break;
+ }
+
+ default: return CMD_ERROR;
+ }
+
+ if (sel_ord > v->num_orders) return CMD_ERROR;
+
+ if (IsOrderPoolFull()) return_cmd_error(STR_8831_NO_MORE_SPACE_FOR_ORDERS);
+
+ /* XXX - This limit is only here because the backuppedorders can't
+ * handle any more then this.. */
+ if (v->num_orders >= MAX_BACKUP_ORDER_COUNT) return_cmd_error(STR_8832_TOO_MANY_ORDERS);
+
+ /* For ships, make sure that the station is not too far away from the
+ * previous destination, for human players with new pathfinding disabled */
+ if (v->type == VEH_Ship && IsHumanPlayer(v->owner) &&
+ sel_ord != 0 && GetVehicleOrder(v, sel_ord - 1)->type == OT_GOTO_STATION
+ && !_patches.new_pathfinding_all) {
+
+ int dist = DistanceManhattan(
+ GetStation(GetVehicleOrder(v, sel_ord - 1)->dest)->xy,
+ GetStation(new_order.dest)->xy // XXX type != OT_GOTO_STATION?
+ );
+ if (dist >= 130)
+ return_cmd_error(STR_0210_TOO_FAR_FROM_PREVIOUS_DESTINATIO);
+ }
+
+ if (flags & DC_EXEC) {
+ Vehicle *u;
+ Order *new = AllocateOrder();
+ AssignOrder(new, new_order);
+
+ /* Create new order and link in list */
+ if (v->orders == NULL) {
+ v->orders = new;
+ } else {
+ /* Try to get the previous item (we are inserting above the
+ selected) */
+ Order *order = GetVehicleOrder(v, sel_ord - 1);
+
+ if (order == NULL && GetVehicleOrder(v, sel_ord) != NULL) {
+ /* There is no previous item, so we are altering v->orders itself
+ But because the orders can be shared, we copy the info over
+ the v->orders, so we don't have to change the pointers of
+ all vehicles */
+ SwapOrders(v->orders, new);
+ /* Now update the next pointers */
+ v->orders->next = new;
+ } else if (order == NULL) {
+ /* 'sel' is a non-existing order, add him to the end */
+ order = GetLastVehicleOrder(v);
+ order->next = new;
+ } else {
+ /* Put the new order in between */
+ new->next = order->next;
+ order->next = new;
+ }
+ }
+
+ u = GetFirstVehicleFromSharedList(v);
+ DeleteOrderWarnings(u);
+ for (; u != NULL; u = u->next_shared) {
+ /* Increase amount of orders */
+ u->num_orders++;
+
+ /* If the orderlist was empty, assign it */
+ if (u->orders == NULL) u->orders = v->orders;
+
+ assert(v->orders == u->orders);
+
+ /* If there is added an order before the current one, we need
+ to update the selected order */
+ if (sel_ord <= u->cur_order_index) {
+ uint cur = u->cur_order_index + 1;
+ /* Check if we don't go out of bound */
+ if (cur < u->num_orders)
+ u->cur_order_index = cur;
+ }
+ /* Update any possible open window of the vehicle */
+ InvalidateVehicleOrder(u);
+ }
+
+ /* Make sure to rebuild the whole list */
+ RebuildVehicleLists();
+ }
+
+ return 0;
+}
+
+/** Declone an order-list
+ * @param *dst delete the orders of this vehicle
+ * @param flags execution flags
+ */
+static int32 DecloneOrder(Vehicle *dst, uint32 flags)
+{
+ if (flags & DC_EXEC) {
+ DeleteVehicleOrders(dst);
+ InvalidateVehicleOrder(dst);
+ RebuildVehicleLists();
+ }
+ return 0;
+}
+
+/** Delete an order from the orderlist of a vehicle.
+ * @param tile unused
+ * @param p1 the ID of the vehicle
+ * @param p2 the order to delete (max 255)
+ */
+int32 CmdDeleteOrder(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
+{
+ Vehicle *v, *u;
+ VehicleID veh_id = p1;
+ VehicleOrderID sel_ord = p2;
+ Order *order;
+
+ if (!IsValidVehicleID(veh_id)) return CMD_ERROR;
+
+ v = GetVehicle(veh_id);
+
+ if (!CheckOwnership(v->owner)) return CMD_ERROR;
+
+ /* If we did not select an order, we maybe want to de-clone the orders */
+ if (sel_ord >= v->num_orders)
+ return DecloneOrder(v, flags);
+
+ order = GetVehicleOrder(v, sel_ord);
+ if (order == NULL) return CMD_ERROR;
+
+ if (flags & DC_EXEC) {
+ if (GetVehicleOrder(v, sel_ord - 1) == NULL) {
+ if (GetVehicleOrder(v, sel_ord + 1) != NULL) {
+ /* First item, but not the last, so we need to alter v->orders
+ Because we can have shared order, we copy the data
+ from the next item over the deleted */
+ order = GetVehicleOrder(v, sel_ord + 1);
+ SwapOrders(v->orders, order);
+ } else {
+ /* Last item, so clean the list */
+ v->orders = NULL;
+ }
+ } else {
+ GetVehicleOrder(v, sel_ord - 1)->next = order->next;
+ }
+
+ /* Give the item free */
+ order->type = OT_NOTHING;
+ order->next = NULL;
+
+ u = GetFirstVehicleFromSharedList(v);
+ DeleteOrderWarnings(u);
+ for (; u != NULL; u = u->next_shared) {
+ u->num_orders--;
+
+ if (sel_ord < u->cur_order_index)
+ u->cur_order_index--;
+
+ /* If we removed the last order, make sure the shared vehicles
+ * also set their orders to NULL */
+ if (v->orders == NULL) u->orders = NULL;
+
+ assert(v->orders == u->orders);
+
+ /* NON-stop flag is misused to see if a train is in a station that is
+ * on his order list or not */
+ if (sel_ord == u->cur_order_index && u->current_order.type == OT_LOADING &&
+ HASBIT(u->current_order.flags, OFB_NON_STOP)) {
+ u->current_order.flags = 0;
+ }
+
+ /* Update any possible open window of the vehicle */
+ InvalidateVehicleOrder(u);
+ }
+
+ RebuildVehicleLists();
+ }
+
+ return 0;
+}
+
+/** Goto next order of order-list.
+ * @param tile unused
+ * @param p1 The ID of the vehicle which order is skipped
+ * @param p2 unused
+ */
+int32 CmdSkipOrder(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
+{
+ Vehicle *v;
+ VehicleID veh_id = p1;
+
+ if (!IsValidVehicleID(veh_id)) return CMD_ERROR;
+
+ v = GetVehicle(veh_id);
+
+ if (!CheckOwnership(v->owner)) return CMD_ERROR;
+
+ if (flags & DC_EXEC) {
+ /* Goto next order */
+ VehicleOrderID b = v->cur_order_index + 1;
+ if (b >= v->num_orders) b = 0;
+
+ v->cur_order_index = b;
+
+ if (v->type == VEH_Train) v->u.rail.days_since_order_progr = 0;
+
+ if (v->type == VEH_Road) ClearSlot(v);
+
+ /* NON-stop flag is misused to see if a train is in a station that is
+ * on his order list or not */
+ if (v->current_order.type == OT_LOADING && HASBIT(v->current_order.flags, OFB_NON_STOP))
+ v->current_order.flags = 0;
+
+ InvalidateVehicleOrder(v);
+ }
+
+ /* We have an aircraft/ship, they have a mini-schedule, so update them all */
+ if (v->type == VEH_Aircraft) InvalidateWindowClasses(WC_AIRCRAFT_LIST);
+ if (v->type == VEH_Ship) InvalidateWindowClasses(WC_SHIPS_LIST);
+
+ return 0;
+}
+
+
+/** Modify an order in the orderlist of a vehicle.
+ * @param tile unused
+ * @param p1 various bitstuffed elements
+ * - p1 = (bit 0 - 15) - ID of the vehicle
+ * - p1 = (bit 16 - 31) - the selected order (if any). If the last order is given,
+ * the order will be inserted before that one
+ * only the first 8 bits used currently (bit 16 - 23) (max 255)
+ * @param p2 mode to change the order to (always set)
+ */
+int32 CmdModifyOrder(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
+{
+ Vehicle *v;
+ Order *order;
+ VehicleOrderID sel_ord = GB(p1, 16, 16); // XXX - automatically truncated to 8 bits.
+ VehicleID veh = GB(p1, 0, 16);
+
+ if (!IsValidVehicleID(veh)) return CMD_ERROR;
+ if (p2 != OFB_FULL_LOAD && p2 != OFB_UNLOAD && p2 != OFB_NON_STOP && p2 != OFB_TRANSFER) return CMD_ERROR;
+
+ v = GetVehicle(veh);
+
+ if (!CheckOwnership(v->owner)) return CMD_ERROR;
+
+ /* Is it a valid order? */
+ if (sel_ord >= v->num_orders) return CMD_ERROR;
+
+ order = GetVehicleOrder(v, sel_ord);
+ if (order->type != OT_GOTO_STATION &&
+ (order->type != OT_GOTO_DEPOT || p2 == OFB_UNLOAD) &&
+ (order->type != OT_GOTO_WAYPOINT || p2 != OFB_NON_STOP)) {
+ return CMD_ERROR;
+ }
+
+ if (flags & DC_EXEC) {
+ switch (p2) {
+ case OFB_FULL_LOAD:
+ TOGGLEBIT(order->flags, OFB_FULL_LOAD);
+ if (order->type != OT_GOTO_DEPOT) CLRBIT(order->flags, OFB_UNLOAD);
+ break;
+ case OFB_UNLOAD:
+ TOGGLEBIT(order->flags, OFB_UNLOAD);
+ CLRBIT(order->flags, OFB_FULL_LOAD);
+ break;
+ case OFB_NON_STOP:
+ TOGGLEBIT(order->flags, OFB_NON_STOP);
+ break;
+ case OFB_TRANSFER:
+ TOGGLEBIT(order->flags, OFB_TRANSFER);
+ break;
+ default: NOT_REACHED();
+ }
+
+ /* Update the windows and full load flags, also for vehicles that share the same order list */
+ {
+ Vehicle* u;
+
+ u = GetFirstVehicleFromSharedList(v);
+ DeleteOrderWarnings(u);
+ for (; u != NULL; u = u->next_shared) {
+ /* Toggle u->current_order "Full load" flag if it changed.
+ * However, as the same flag is used for depot orders, check
+ * whether we are not going to a depot as there are three
+ * cases where the full load flag can be active and only
+ * one case where the flag is used for depot orders. In the
+ * other cases for the OrderType the flags are not used,
+ * so do not care and those orders should not be active
+ * when this function is called.
+ */
+ if (sel_ord == u->cur_order_index &&
+ u->current_order.type != OT_GOTO_DEPOT &&
+ HASBIT(u->current_order.flags, OFB_FULL_LOAD) != HASBIT(order->flags, OFB_FULL_LOAD)) {
+ TOGGLEBIT(u->current_order.flags, OFB_FULL_LOAD);
+ }
+ InvalidateVehicleOrder(u);
+ }
+ }
+ }
+
+ return 0;
+}
+
+/** Clone/share/copy an order-list of an other vehicle.
+ * @param p1 various bitstuffed elements
+ * - p1 = (bit 0-15) - destination vehicle to clone orders to (p1 & 0xFFFF)
+ * - p1 = (bit 16-31) - source vehicle to clone orders from, if any (none for CO_UNSHARE)
+ * @param p2 mode of cloning: CO_SHARE, CO_COPY, or CO_UNSHARE
+ */
+int32 CmdCloneOrder(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
+{
+ Vehicle *dst;
+ VehicleID veh_src = GB(p1, 16, 16);
+ VehicleID veh_dst = GB(p1, 0, 16);
+
+ if (!IsValidVehicleID(veh_dst)) return CMD_ERROR;
+
+ dst = GetVehicle(veh_dst);
+
+ if (!CheckOwnership(dst->owner)) return CMD_ERROR;
+
+ switch (p2) {
+ case CO_SHARE: {
+ Vehicle *src;
+
+ if (!IsValidVehicleID(veh_src)) return CMD_ERROR;
+
+ src = GetVehicle(veh_src);
+
+ /* Sanity checks */
+ if (!CheckOwnership(src->owner) || dst->type != src->type || dst == src)
+ return CMD_ERROR;
+
+ /* Trucks can't share orders with busses (and visa versa) */
+ if (src->type == VEH_Road) {
+ if (src->cargo_type != dst->cargo_type && (src->cargo_type == CT_PASSENGERS || dst->cargo_type == CT_PASSENGERS))
+ return CMD_ERROR;
+ }
+
+ /* Is the vehicle already in the shared list? */
+ {
+ const Vehicle* u;
+
+ for (u = GetFirstVehicleFromSharedList(src); u != NULL; u = u->next_shared) {
+ if (u == dst) return CMD_ERROR;
+ }
+ }
+
+ if (flags & DC_EXEC) {
+ /* If the destination vehicle had a OrderList, destroy it */
+ DeleteVehicleOrders(dst);
+
+ dst->orders = src->orders;
+ dst->num_orders = src->num_orders;
+
+ /* Link this vehicle in the shared-list */
+ dst->next_shared = src->next_shared;
+ dst->prev_shared = src;
+ if (src->next_shared != NULL) src->next_shared->prev_shared = dst;
+ src->next_shared = dst;
+
+ InvalidateVehicleOrder(dst);
+ InvalidateVehicleOrder(src);
+
+ RebuildVehicleLists();
+ }
+ } break;
+
+ case CO_COPY: {
+ Vehicle *src;
+ int delta;
+
+ if (!IsValidVehicleID(veh_src)) return CMD_ERROR;
+
+ src = GetVehicle(veh_src);
+
+ /* Sanity checks */
+ if (!CheckOwnership(src->owner) || dst->type != src->type || dst == src)
+ return CMD_ERROR;
+
+ /* Trucks can't copy all the orders from busses (and visa versa) */
+ if (src->type == VEH_Road) {
+ const Order *order;
+ TileIndex required_dst = INVALID_TILE;
+
+ FOR_VEHICLE_ORDERS(src, order) {
+ if (order->type == OT_GOTO_STATION) {
+ const Station *st = GetStation(order->dest);
+ if (dst->cargo_type == CT_PASSENGERS) {
+ if (st->bus_stops != NULL) required_dst = st->bus_stops->xy;
+ } else {
+ if (st->truck_stops != NULL) required_dst = st->truck_stops->xy;
+ }
+ /* This station has not the correct road-bay, so we can't copy! */
+ if (required_dst == INVALID_TILE)
+ return CMD_ERROR;
+ }
+ }
+ }
+
+ /* make sure there are orders available */
+ delta = IsOrderListShared(dst) ? src->num_orders + 1 : src->num_orders - dst->num_orders;
+ if (!HasOrderPoolFree(delta))
+ return_cmd_error(STR_8831_NO_MORE_SPACE_FOR_ORDERS);
+
+ if (flags & DC_EXEC) {
+ const Order *order;
+ Order **order_dst;
+
+ /* If the destination vehicle had a OrderList, destroy it */
+ DeleteVehicleOrders(dst);
+
+ order_dst = &dst->orders;
+ FOR_VEHICLE_ORDERS(src, order) {
+ *order_dst = AllocateOrder();
+ AssignOrder(*order_dst, *order);
+ order_dst = &(*order_dst)->next;
+ }
+
+ dst->num_orders = src->num_orders;
+
+ InvalidateVehicleOrder(dst);
+
+ RebuildVehicleLists();
+ }
+ } break;
+
+ case CO_UNSHARE: return DecloneOrder(dst, flags);
+ default: return CMD_ERROR;
+ }
+
+ return 0;
+}
+
+/** Add/remove refit orders from an order
+ * @param tile Not used
+ * @param p1 VehicleIndex of the vehicle having the order
+ * @param p2 bitmask
+ * - bit 0-7 CargoID
+ * - bit 8-15 Cargo subtype
+ * - bit 16-23 number of order to modify
+ */
+int32 CmdOrderRefit(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
+{
+ const Vehicle *v;
+ Order *order;
+ VehicleID veh = GB(p1, 0, 16);
+ VehicleOrderID order_number = GB(p2, 16, 8);
+ CargoID cargo = GB(p2, 0, 8);
+ byte subtype = GB(p2, 8, 8);
+
+ if (!IsValidVehicleID(veh)) return CMD_ERROR;
+
+ v = GetVehicle(veh);
+
+ if (!CheckOwnership(v->owner)) return CMD_ERROR;
+
+ order = GetVehicleOrder(v, order_number);
+ if (order == NULL) return CMD_ERROR;
+
+ if (flags & DC_EXEC) {
+ Vehicle *u;
+
+ order->refit_cargo = cargo;
+ order->refit_subtype = subtype;
+
+ u = GetFirstVehicleFromSharedList(v);
+ for (; u != NULL; u = u->next_shared) {
+ /* Update any possible open window of the vehicle */
+ InvalidateVehicleOrder(u);
+
+ /* If the vehicle already got the current depot set as current order, then update current order as well */
+ if (u->cur_order_index == order_number && HASBIT(u->current_order.flags, OFB_PART_OF_ORDERS)) {
+ u->current_order.refit_cargo = cargo;
+ u->current_order.refit_subtype = subtype;
+ }
+ }
+ }
+
+ return 0;
+}
+
+/**
+ *
+ * Backup a vehicle order-list, so you can replace a vehicle
+ * without loosing the order-list
+ *
+ */
+void BackupVehicleOrders(const Vehicle *v, BackuppedOrders *bak)
+{
+ /* Save general info */
+ bak->orderindex = v->cur_order_index;
+ bak->service_interval = v->service_interval;
+
+ /* Safe custom string, if any */
+ if (!IsCustomName(v->string_id)) {
+ bak->name[0] = '\0';
+ } else {
+ GetName(bak->name, v->string_id & 0x7FF, lastof(bak->name));
+ }
+
+ /* If we have shared orders, store it on a special way */
+ if (IsOrderListShared(v)) {
+ const Vehicle *u = (v->next_shared) ? v->next_shared : v->prev_shared;
+
+ bak->clone = u->index;
+ } else {
+ /* Else copy the orders */
+ Order *order, *dest;
+
+ dest = bak->order;
+
+ /* We do not have shared orders */
+ bak->clone = INVALID_VEHICLE;
+
+ /* Copy the orders */
+ FOR_VEHICLE_ORDERS(v, order) {
+ *dest = *order;
+ dest++;
+ }
+ /* End the list with an OT_NOTHING */
+ dest->type = OT_NOTHING;
+ dest->next = NULL;
+ }
+}
+
+/**
+ *
+ * Restore vehicle orders that are backupped via BackupVehicleOrders
+ *
+ */
+void RestoreVehicleOrders(const Vehicle* v, const BackuppedOrders* bak)
+{
+ uint i;
+
+ /* If we have a custom name, process that */
+ if (bak->name[0] != 0) {
+ _cmd_text = bak->name;
+ DoCommandP(0, v->index, 0, NULL, CMD_NAME_VEHICLE);
+ }
+
+ /* If we had shared orders, recover that */
+ if (bak->clone != INVALID_VEHICLE) {
+ DoCommandP(0, v->index | (bak->clone << 16), 0, NULL, CMD_CLONE_ORDER);
+ return;
+ }
+
+ /* CMD_NO_TEST_IF_IN_NETWORK is used here, because CMD_INSERT_ORDER checks if the
+ * order number is one more than the current amount of orders, and because
+ * in network the commands are queued before send, the second insert always
+ * fails in test mode. By bypassing the test-mode, that no longer is a problem. */
+ for (i = 0; bak->order[i].type != OT_NOTHING; i++) {
+ if (!DoCommandP(0, v->index + (i << 16), PackOrder(&bak->order[i]), NULL, CMD_INSERT_ORDER | CMD_NO_TEST_IF_IN_NETWORK))
+ break;
+ }
+
+ /* Restore vehicle order-index and service interval */
+ DoCommandP(0, v->index, bak->orderindex | (bak->service_interval << 16) , NULL, CMD_RESTORE_ORDER_INDEX);
+}
+
+/** Restore the current order-index of a vehicle and sets service-interval.
+ * @param tile unused
+ * @param p1 the ID of the vehicle
+ * @param p2 various bistuffed elements
+ * - p2 = (bit 0-15) - current order-index (p2 & 0xFFFF)
+ * - p2 = (bit 16-31) - service interval (p2 >> 16)
+ * @todo Unfortunately you cannot safely restore the unitnumber or the old vehicle
+ * as far as I can see. We can store it in BackuppedOrders, and restore it, but
+ * but we have no way of seeing it has been tampered with or not, as we have no
+ * legit way of knowing what that ID was.@n
+ * If we do want to backup/restore it, just add UnitID uid to BackuppedOrders, and
+ * restore it as parameter 'y' (ugly hack I know) for example. "v->unitnumber = y;"
+ */
+int32 CmdRestoreOrderIndex(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
+{
+ Vehicle *v;
+ VehicleOrderID cur_ord = GB(p2, 0, 16);
+ uint16 serv_int = GB(p2, 16, 16);
+
+ if (!IsValidVehicleID(p1)) return CMD_ERROR;
+
+ v = GetVehicle(p1);
+
+ /* Check the vehicle type and ownership, and if the service interval and order are in range */
+ if (!CheckOwnership(v->owner)) return CMD_ERROR;
+ if (serv_int != GetServiceIntervalClamped(serv_int) || cur_ord >= v->num_orders) return CMD_ERROR;
+
+ if (flags & DC_EXEC) {
+ v->cur_order_index = cur_ord;
+ v->service_interval = serv_int;
+ }
+
+ return 0;
+}
+
+
+static TileIndex GetStationTileForVehicle(const Vehicle* v, const Station* st)
+{
+ switch (v->type) {
+ default: NOT_REACHED();
+ case VEH_Train: return st->train_tile;
+ case VEH_Aircraft: return st->airport_tile;
+ case VEH_Ship: return st->dock_tile;
+ case VEH_Road:
+ if (v->cargo_type == CT_PASSENGERS) {
+ return (st->bus_stops != NULL) ? st->bus_stops->xy : 0;
+ } else {
+ return (st->truck_stops != NULL) ? st->truck_stops->xy : 0;
+ }
+ }
+}
+
+
+/**
+ *
+ * Check the orders of a vehicle, to see if there are invalid orders and stuff
+ *
+ */
+void CheckOrders(const Vehicle* v)
+{
+ /* Does the user wants us to check things? */
+ if (_patches.order_review_system == 0) return;
+
+ /* Do nothing for crashed vehicles */
+ if (v->vehstatus & VS_CRASHED) return;
+
+ /* Do nothing for stopped vehicles if setting is '1' */
+ if (_patches.order_review_system == 1 && v->vehstatus & VS_STOPPED)
+ return;
+
+ /* do nothing we we're not the first vehicle in a share-chain */
+ if (v->next_shared != NULL) return;
+
+ /* Only check every 20 days, so that we don't flood the message log */
+ if (v->owner == _local_player && v->day_counter % 20 == 0) {
+ int n_st, problem_type = -1;
+ const Order *order;
+ int message = 0;
+
+ /* Check the order list */
+ n_st = 0;
+
+ FOR_VEHICLE_ORDERS(v, order) {
+ /* Dummy order? */
+ if (order->type == OT_DUMMY) {
+ problem_type = 1;
+ break;
+ }
+ /* Does station have a load-bay for this vehicle? */
+ if (order->type == OT_GOTO_STATION) {
+ const Station* st = GetStation(order->dest);
+ TileIndex required_tile = GetStationTileForVehicle(v, st);
+
+ n_st++;
+ if (required_tile == 0) problem_type = 3;
+ }
+ }
+
+ /* Check if the last and the first order are the same */
+ if (v->num_orders > 1) {
+ const Order* last = GetLastVehicleOrder(v);
+
+ if (v->orders->type == last->type &&
+ v->orders->flags == last->flags &&
+ v->orders->dest == last->dest) {
+ problem_type = 2;
+ }
+ }
+
+ /* Do we only have 1 station in our order list? */
+ if (n_st < 2 && problem_type == -1) problem_type = 0;
+
+ /* We don't have a problem */
+ if (problem_type < 0) return;
+
+ message = STR_TRAIN_HAS_TOO_FEW_ORDERS + ((v->type - VEH_Train) << 2) + problem_type;
+ //DEBUG(misc, 3, "Triggered News Item for vehicle %d", v->index);
+
+ SetDParam(0, v->unitnumber);
+ AddNewsItem(
+ message,
+ NEWS_FLAGS(NM_SMALL, NF_VIEWPORT | NF_VEHICLE, NT_ADVICE, 0),
+ v->index,
+ 0
+ );
+ }
+}
+
+/**
+ * Removes an order from all vehicles. Triggers when, say, a station is removed.
+ * @param type The type of the order (OT_GOTO_[STATION|DEPOT|WAYPOINT]).
+ * @param destination The destination. Can be a StationID, DepotID or WaypointID.
+ */
+void RemoveOrderFromAllVehicles(OrderType type, DestinationID destination)
+{
+ Vehicle *v;
+
+ /* Aircraft have StationIDs for depot orders and never use DepotIDs
+ * This fact is handled specially below
+ */
+
+ /* Go through all vehicles */
+ FOR_ALL_VEHICLES(v) {
+ Order *order;
+ bool invalidate;
+
+ /* Forget about this station if this station is removed */
+ if (v->last_station_visited == destination && type == OT_GOTO_STATION) {
+ v->last_station_visited = INVALID_STATION;
+ }
+
+ order = &v->current_order;
+ if ((v->type == VEH_Aircraft && order->type == OT_GOTO_DEPOT ? OT_GOTO_STATION : order->type) == type &&
+ v->current_order.dest == destination) {
+ order->type = OT_DUMMY;
+ order->flags = 0;
+ InvalidateWindow(WC_VEHICLE_VIEW, v->index);
+ }
+
+ /* Clear the order from the order-list */
+ invalidate = false;
+ FOR_VEHICLE_ORDERS(v, order) {
+ if ((v->type == VEH_Aircraft && order->type == OT_GOTO_DEPOT ? OT_GOTO_STATION : order->type) == type &&
+ order->dest == destination) {
+ order->type = OT_DUMMY;
+ order->flags = 0;
+ invalidate = true;
+ }
+ }
+
+ /* Only invalidate once, and if needed */
+ if (invalidate) InvalidateWindow(WC_VEHICLE_ORDERS, v->index);
+ }
+}
+
+/**
+ *
+ * Checks if a vehicle has a GOTO_DEPOT in his order list
+ *
+ * @return True if this is true (lol ;))
+ *
+ */
+bool VehicleHasDepotOrders(const Vehicle *v)
+{
+ const Order *order;
+
+ FOR_VEHICLE_ORDERS(v, order) {
+ if (order->type == OT_GOTO_DEPOT)
+ return true;
+ }
+
+ return false;
+}
+
+/**
+ *
+ * Delete all orders from a vehicle
+ *
+ */
+void DeleteVehicleOrders(Vehicle *v)
+{
+ Order *cur, *next;
+
+ DeleteOrderWarnings(v);
+
+ /* If we have a shared order-list, don't delete the list, but just
+ remove our pointer */
+ if (IsOrderListShared(v)) {
+ const Vehicle *u = v;
+
+ v->orders = NULL;
+ v->num_orders = 0;
+
+ /* Unlink ourself */
+ if (v->prev_shared != NULL) {
+ v->prev_shared->next_shared = v->next_shared;
+ u = v->prev_shared;
+ }
+ if (v->next_shared != NULL) {
+ v->next_shared->prev_shared = v->prev_shared;
+ u = v->next_shared;
+ }
+ v->prev_shared = NULL;
+ v->next_shared = NULL;
+
+ /* We only need to update this-one, because if there is a third
+ * vehicle which shares the same order-list, nothing will change. If
+ * this is the last vehicle, the last line of the order-window
+ * will change from Shared order list, to Order list, so it needs
+ * an update */
+ InvalidateVehicleOrder(u);
+ return;
+ }
+
+ /* Remove the orders */
+ cur = v->orders;
+ v->orders = NULL;
+ v->num_orders = 0;
+
+ if (cur != NULL) {
+ /* Delete the vehicle list of shared orders, if any */
+ int window_type = 0;
+
+ switch (v->type) {
+ case VEH_Train: window_type = WC_TRAINS_LIST; break;
+ case VEH_Road: window_type = WC_ROADVEH_LIST; break;
+ case VEH_Ship: window_type = WC_SHIPS_LIST; break;
+ case VEH_Aircraft: window_type = WC_AIRCRAFT_LIST; break;
+ default: NOT_REACHED();
+ }
+ DeleteWindowById(window_type, (cur->index << 16) | (v->type << 11) | VLW_SHARED_ORDERS | v->owner);
+ }
+
+ while (cur != NULL) {
+ next = cur->next;
+ DeleteOrder(cur);
+ cur = next;
+ }
+}
+
+/**
+ *
+ * Check if we share our orders with an other vehicle
+ *
+ * @return Returns the vehicle who has the same order
+ *
+ */
+bool IsOrderListShared(const Vehicle *v)
+{
+ return v->next_shared != NULL || v->prev_shared != NULL;
+}
+
+/**
+ *
+ * Check if a vehicle has any valid orders
+ *
+ * @return false if there are no valid orders
+ *
+ */
+bool CheckForValidOrders(const Vehicle* v)
+{
+ const Order *order;
+
+ FOR_VEHICLE_ORDERS(v, order) if (order->type != OT_DUMMY) return true;
+
+ return false;
+}
+
+void InitializeOrders(void)
+{
+ CleanPool(&_Order_pool);
+ AddBlockToPool(&_Order_pool);
+
+ _backup_orders_tile = 0;
+}
+
+static const SaveLoad _order_desc[] = {
+ SLE_VAR(Order, type, SLE_UINT8),
+ SLE_VAR(Order, flags, SLE_UINT8),
+ SLE_VAR(Order, dest, SLE_UINT16),
+ SLE_REF(Order, next, REF_ORDER),
+ SLE_CONDVAR(Order, refit_cargo, SLE_UINT8, 36, SL_MAX_VERSION),
+ SLE_CONDVAR(Order, refit_subtype, SLE_UINT8, 36, SL_MAX_VERSION),
+
+ /* Leftover from the minor savegame version stuff
+ * We will never use those free bytes, but we have to keep this line to allow loading of old savegames */
+ SLE_CONDNULL(10, 5, 35),
+ SLE_END()
+};
+
+static void Save_ORDR(void)
+{
+ Order *order;
+
+ FOR_ALL_ORDERS(order) {
+ SlSetArrayIndex(order->index);
+ SlObject(order, _order_desc);
+ }
+}
+
+static void Load_ORDR(void)
+{
+ if (CheckSavegameVersionOldStyle(5, 2)) {
+ /* Version older than 5.2 did not have a ->next pointer. Convert them
+ (in the old days, the orderlist was 5000 items big) */
+ uint len = SlGetFieldLength();
+ uint i;
+
+ if (CheckSavegameVersion(5)) {
+ /* Pre-version 5 had an other layout for orders
+ (uint16 instead of uint32) */
+ uint16 orders[5000];
+
+ len /= sizeof(uint16);
+ assert (len <= lengthof(orders));
+
+ SlArray(orders, len, SLE_UINT16);
+
+ for (i = 0; i < len; ++i) {
+ if (!AddBlockIfNeeded(&_Order_pool, i))
+ error("Orders: failed loading savegame: too many orders");
+
+ AssignOrder(GetOrder(i), UnpackVersion4Order(orders[i]));
+ }
+ } else if (CheckSavegameVersionOldStyle(5, 2)) {
+ uint32 orders[5000];
+
+ len /= sizeof(uint32);
+ assert (len <= lengthof(orders));
+
+ SlArray(orders, len, SLE_UINT32);
+
+ for (i = 0; i < len; ++i) {
+ if (!AddBlockIfNeeded(&_Order_pool, i))
+ error("Orders: failed loading savegame: too many orders");
+
+ AssignOrder(GetOrder(i), UnpackOrder(orders[i]));
+ }
+ }
+
+ /* Update all the next pointer */
+ for (i = 1; i < len; ++i) {
+ /* The orders were built like this:
+ * Vehicle one had order[0], and as long as order++.type was not
+ * OT_NOTHING, it was part of the order-list of that vehicle */
+ if (GetOrder(i)->type != OT_NOTHING)
+ GetOrder(i - 1)->next = GetOrder(i);
+ }
+ } else {
+ int index;
+
+ while ((index = SlIterateArray()) != -1) {
+ Order *order;
+
+ if (!AddBlockIfNeeded(&_Order_pool, index))
+ error("Orders: failed loading savegame: too many orders");
+
+ order = GetOrder(index);
+ SlObject(order, _order_desc);
+ }
+ }
+}
+
+const ChunkHandler _order_chunk_handlers[] = {
+ { 'ORDR', Save_ORDR, Load_ORDR, CH_ARRAY | CH_LAST},
+};