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/* $Id$ */

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/** @file order_type.h Types related to orders. */

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#ifndef ORDER_TYPE_H

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#define ORDER_TYPE_H

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#include "core/enum_type.hpp"

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typedef byte VehicleOrderID;  ///< The index of an order within its current vehicle (not pool related)

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typedef uint16 OrderID;

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typedef uint16 DestinationID;

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enum {

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	INVALID_VEH_ORDER_ID = 0xFF,

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};

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static const OrderID INVALID_ORDER = 0xFFFF;

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/* Order types */

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enum OrderType {

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	OT_BEGIN         = 0,

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	OT_NOTHING       = 0,

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	OT_GOTO_STATION  = 1,

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	OT_GOTO_DEPOT    = 2,

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	OT_LOADING       = 3,

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	OT_LEAVESTATION  = 4,

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	OT_DUMMY         = 5,

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	OT_GOTO_WAYPOINT = 6,

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	OT_CONDITIONAL   = 7,

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	OT_END

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};

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/* It needs to be 8bits, because we save and load it as such */

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/** Define basic enum properties */

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template <> struct EnumPropsT<OrderType> : MakeEnumPropsT<OrderType, byte, OT_BEGIN, OT_END, OT_END> {};

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typedef TinyEnumT<OrderType> OrderTypeByte;

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/**

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 * Flags related to the unloading order.

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 */

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enum OrderUnloadFlags {

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	OUF_UNLOAD_IF_POSSIBLE = 0,      ///< Unload all cargo that the station accepts.

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	OUFB_UNLOAD            = 1 << 0, ///< Force unloading all cargo onto the platform, possibly not getting paid.

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	OUFB_TRANSFER          = 1 << 1, ///< Transfer all cargo onto the platform.

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	OUFB_NO_UNLOAD         = 1 << 2, ///< Totally no unloading will be done.

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};

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/**

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 * Flags related to the loading order.

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 */

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enum OrderLoadFlags {

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	OLF_LOAD_IF_POSSIBLE = 0,      ///< Load as long as there is cargo that fits in the train.

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	OLFB_FULL_LOAD       = 1 << 1, ///< Full load the complete the consist.

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	OLF_FULL_LOAD_ANY    = 3,      ///< Full load the a single cargo of the consist.

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	OLFB_NO_LOAD         = 4,      ///< Do not load anything.

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};

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/**

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 * Non-stop order flags.

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 */

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enum OrderNonStopFlags {

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	ONSF_STOP_EVERYWHERE                  = 0, ///< The vehicle will stop at any station it passes and the destination.

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	ONSF_NO_STOP_AT_INTERMEDIATE_STATIONS = 1, ///< The vehicle will not stop at any stations it passes except the destination.

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	ONSF_NO_STOP_AT_DESTINATION_STATION   = 2, ///< The vehicle will stop at any station it passes except the destination.

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	ONSF_NO_STOP_AT_ANY_STATION           = 3, ///< The vehicle will not stop at any stations it passes including the destination.

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	ONSF_END

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};

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/**

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 * Reasons that could cause us to go to the depot.

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 */

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enum OrderDepotTypeFlags {

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	ODTF_MANUAL          = 0,      ///< The player initiated this order manually.

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	ODTFB_SERVICE        = 1 << 0, ///< This depot order is because of the servicing limit.

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	ODTFB_PART_OF_ORDERS = 1 << 1, ///< This depot order is because of a regular order.

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};

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/**

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 * Actions that can be performed when the vehicle enters the depot.

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 */

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enum OrderDepotActionFlags {

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	ODATF_SERVICE_ONLY   = 0,      ///< Only service the vehicle.

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	ODATFB_HALT          = 1 << 0, ///< Service the vehicle and then halt it.

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	ODATFB_NEAREST_DEPOT = 1 << 1, ///< Send the vehicle to the nearest depot.

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};

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/**

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 * Variables (of a vehicle) to 'cause' skipping on.

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 */

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enum OrderConditionVariable {

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	OCV_LOAD_PERCENTAGE,  ///< Skip based on the amount of load

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	OCV_RELIABILITY,      ///< Skip based on the reliability

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	OCV_MAX_SPEED,        ///< Skip based on the maximum speed

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	OCV_AGE,              ///< Skip based on the age

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	OCV_REQUIRES_SERVICE, ///< Skip when the vehicle requires service

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	OCV_UNCONDITIONALLY,  ///< Always skip

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	OCV_END

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};

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/**

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 * Comparator for the skip reasoning.

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 */

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enum OrderConditionComparator {

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	OCC_EQUALS,      ///< Skip if both values are equal

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	OCC_NOT_EQUALS,  ///< Skip if both values are not equal

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	OCC_LESS_THAN,   ///< Skip if the value is less than the limit

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	OCC_LESS_EQUALS, ///< Skip if the value is less or equal to the limit

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	OCC_MORE_THAN,   ///< Skip if the value is more than the limit

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	OCC_MORE_EQUALS, ///< Skip if the value is more or equal to the limit

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	OCC_IS_TRUE,     ///< Skip if the variable is true

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	OCC_IS_FALSE,    ///< Skip if the variable is false

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	OCC_END

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};

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/**

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 * Enumeration for the data to set in CmdModifyOrder.

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 */

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enum ModifyOrderFlags {

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	MOF_NON_STOP,        ///< Passes a OrderNonStopFlags.

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	MOF_UNLOAD,          ///< Passes an OrderUnloadType.

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	MOF_LOAD,            ///< Passes an OrderLoadType

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	MOF_DEPOT_ACTION,    ///< Toggle the 'service' if needed flag.

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	MOF_COND_VARIABLE,   ///< A conditional variable changes.

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	MOF_COND_COMPARATOR, ///< A comparator changes.

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	MOF_COND_VALUE,      ///< The value to set the condition to.

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	MOF_END

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};

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/* Possible clone options */

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enum {

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	CO_SHARE   = 0,

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	CO_COPY    = 1,

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	CO_UNSHARE = 2

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};

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struct Order;

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#endif /* ORDER_TYPE_H */