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/* $Id$ */

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/** @file fsmport.h Various (base) declarations for FSM built ports */

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#ifndef FSMPORT_H

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#define FSMPORT_H

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#include "direction_type.h"

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#include "map_type.h"

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#include "fsmblockmap.h"

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struct FSMPortMovingData {

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	int16 x;

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	int16 y;

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	int16 z;

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	uint16 flag;

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	Direction direction;

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	byte state;

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	byte block;  //block number for this specific location

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};

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struct FSMCommand {

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	FSMCommand *next;         ///< Possible extra movement choices from this position

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	FSMblockmap reserveblock; ///< The blocks to reserve at this state

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	FSMblockmap releaseblock; ///< The blocks to release at this state

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	byte position;            ///< The position that a vehicle is at

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	byte next_position;       ///< Next position from this position

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	byte heading;             ///< Heading (current orders), guiding a vehicle to its target on a port

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	byte special;             ///< Used as extra data for special orders 7B, 7C, 7D, 7E

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};

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struct FSMDepots {

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	TileIndexDiffC tile_pos;  ///< position of depot on port

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	byte FSMposition;         ///< position of main depot location in state machine

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							  ///< (used to identify location from which vehicles emerge in multi tile depots)

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};

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/** Forward declaration, as we need a circular dependancy */

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struct FSMportsSpec;

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struct FSMPortClass {

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public:

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	FSMPortClass(FSMportsSpec *spec_) : moving_data(NULL), layout(NULL), num_positions(0), depots(NULL),

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			num_depots(0), size_x(0), size_y(0), catchment(0), spec(spec_) {}

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	~FSMPortClass();

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	const FSMPortMovingData *MovingData(byte position) const

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	{

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		assert(position < this->num_positions);

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		return &this->moving_data[position];

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	}

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	FSMPortMovingData *moving_data;

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	FSMCommand *layout;

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	byte num_positions;                   // number of positions the airport consists of

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	FSMDepots *depots;                    // gives the position of the depots on the airports

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	byte num_depots;                      // number of depots this airport has

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	byte size_x;

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	byte size_y;

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	byte catchment;

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	FSMportsSpec *spec;

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};

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#endif /* FSMPORT_H */