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/* $Id$ */
#ifndef ORDER_H
#define ORDER_H
#include "macros.h"
#include "pool.h"
/* Order types */
enum {
OT_NOTHING = 0,
OT_GOTO_STATION = 1,
OT_GOTO_DEPOT = 2,
OT_LOADING = 3,
OT_LEAVESTATION = 4,
OT_DUMMY = 5,
OT_GOTO_WAYPOINT = 6
};
/* Order flags -- please use OFB instead OF and use HASBIT/SETBIT/CLEARBIT */
/* Order flag masks - these are for direct bit operations */
enum {
//Flags for stations:
OF_TRANSFER = 0x1,
OF_UNLOAD = 0x2,
OF_FULL_LOAD = 0x4, // Also used when to force an aircraft into a depot
//Flags for depots:
OF_PART_OF_ORDERS = 0x2,
OF_HALT_IN_DEPOT = 0x4,
//Common flags
OF_NON_STOP = 0x8
};
/* Order flags bits - these are for the *BIT macros */
enum {
OFB_TRANSFER = 0,
OFB_UNLOAD = 1,
OFB_FULL_LOAD = 2,
OFB_PART_OF_ORDERS = 1,
OFB_HALT_IN_DEPOT = 2,
OFB_NON_STOP = 3
};
/* Possible clone options */
enum {
CO_SHARE = 0,
CO_COPY = 1,
CO_UNSHARE = 2
};
/* Modes for the order checker */
enum {
OC_INIT = 0, //the order checker can initialize a news message
OC_VALIDATE = 1, //the order checker validates a news message
};
/* If you change this, keep in mind that it is saved on 3 places:
- Load_ORDR, all the global orders
- Vehicle -> current_order
- REF_SHEDULE (all REFs are currently limited to 16 bits!!) */
typedef struct Order {
uint8 type;
uint8 flags;
uint16 station;
struct Order *next; //! Pointer to next order. If NULL, end of list
uint16 index; //! Index of the order, is not saved or anything, just for reference
} Order;
typedef struct {
VehicleID clone;
OrderID orderindex;
Order order[41];
uint16 service_interval;
char name[32];
} BackuppedOrders;
VARDEF TileIndex _backup_orders_tile;
VARDEF BackuppedOrders _backup_orders_data[1];
extern MemoryPool _order_pool;
/**
* Get the pointer to the order with index 'index'
*/
static inline Order *GetOrder(uint index)
{
return (Order*)GetItemFromPool(&_order_pool, index);
}
/**
* Get the current size of the OrderPool
*/
static inline uint16 GetOrderPoolSize(void)
{
return _order_pool.total_items;
}
#define FOR_ALL_ORDERS_FROM(order, start) for (order = GetOrder(start); order != NULL; order = (order->index + 1 < GetOrderPoolSize()) ? GetOrder(order->index + 1) : NULL)
#define FOR_ALL_ORDERS(order) FOR_ALL_ORDERS_FROM(order, 0)
#define FOR_VEHICLE_ORDERS(v, order) for (order = v->orders; order != NULL; order = order->next)
static inline bool HasOrderPoolFree(uint amount)
{
const Order *order;
/* There is always room if not all blocks in the pool are reserved */
if (_order_pool.current_blocks < _order_pool.max_blocks)
return true;
FOR_ALL_ORDERS(order)
if (order->type == OT_NOTHING)
if (--amount == 0)
return true;
return false;
}
static inline bool IsOrderPoolFull(void)
{
return !HasOrderPoolFree(1);
}
/* Pack and unpack routines */
static inline uint32 PackOrder(const Order *order)
{
return order->station << 16 | order->flags << 8 | order->type;
}
static inline Order UnpackOrder(uint32 packed)
{
Order order;
order.type = GB(packed, 0, 8);
order.flags = GB(packed, 8, 8);
order.station = GB(packed, 16, 16);
order.next = NULL;
order.index = 0; // avoid compiler warning
return order;
}
/* Functions */
void BackupVehicleOrders(const Vehicle *v, BackuppedOrders *order);
void RestoreVehicleOrders(Vehicle *v, BackuppedOrders *order);
void DeleteDestinationFromVehicleOrder(Order dest);
void InvalidateVehicleOrder(const Vehicle *v);
bool VehicleHasDepotOrders(const Vehicle *v);
bool CheckOrders(uint data_a, uint data_b);
void DeleteVehicleOrders(Vehicle *v);
bool IsOrderListShared(const Vehicle *v);
void AssignOrder(Order *order, Order data);
bool CheckForValidOrders(Vehicle *v);
Order UnpackVersion4Order(uint16 packed);
Order UnpackOldOrder(uint16 packed);
#endif /* ORDER_H */
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