Move Class Reference

#include <Move.h>

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Public Member Functions
virtual	~Move ()
	Destructor.
virtual move_command	getHandledMovement () const =0
	Return the handled movement.
virtual std::pair< int, int >	getHandledRelCoords () const =0
	Transform a move_command into a pair of relative coordinates.
virtual move_command	getHandledOpposite () const =0
	Give the opposite movement.
unsigned int	size ()
	Get the size of the chain.
MoveIterator	begin ()
	Return an iterator in order to get the possible movements.
MoveIterator	end ()
	Return an iterator in order to get the possible movements.
std::pair< int, int >	getAbsCoords (move_command cmd, int i, int j) const
	Transform a move_command into a pair of coordinates.
std::pair< int, int >	getAbsCoords (int i, int j) const
	Get the pair of coordinates corresponding to the current movement.
move_command	opposite (move_command cmd) const
	Give the opposite movement.
Protected Member Functions
	Move (Move *next)
	Protected constructor.
Private Attributes
Move *	_next
	The next handled move.
Friends
class	MoveIterator

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Detailed Description

< A movement

Definition at line 37 of file Move.h.

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Constructor & Destructor Documentation

Move::Move

(

Move *

next

)

[protected]

Protected constructor.

Parameters:

next

the next handled move

Definition at line 31 of file Move.cpp.

                      : _next(next) {

}

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Member Function Documentation

virtual move_command Move::getHandledMovement

(

)

const [pure virtual]

Return the handled movement.

Returns:

handled movement

Implemented in EastMove, NoMove, NorthEastMove, NorthMove, NorthWestMove, SouthEastMove, SouthMove, SouthWestMove, and WestMove.

Referenced by getAbsCoords(), MoveIterator::operator *(), and opposite().

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virtual std::pair<int,int> Move::getHandledRelCoords

(

)

const [pure virtual]

Transform a move_command into a pair of relative coordinates.

Returns:

the pair of the future coordinate (after the move)

Implemented in EastMove, NoMove, NorthEastMove, NorthMove, NorthWestMove, SouthEastMove, SouthMove, SouthWestMove, and WestMove.

Referenced by getAbsCoords().

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virtual move_command Move::getHandledOpposite

(

)

const [pure virtual]

Give the opposite movement.

Returns:

the opposite movement

Implemented in EastMove, NoMove, NorthEastMove, NorthMove, NorthWestMove, SouthEastMove, SouthMove, SouthWestMove, and WestMove.

Referenced by opposite().

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unsigned int Move::size

(

)

Get the size of the chain.

Returns:

the dize of the chain

Definition at line 39 of file Move.cpp.

References _next.

Referenced by VisualContext::nbMovements().

                        {
  Move * ptr = _next;
  unsigned int n = 1;
  while(ptr){
    ptr = ptr->_next;
    n++;
  }
  return n;
}

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MoveIterator Move::begin

(

)

Return an iterator in order to get the possible movements.

Returns:

iterator at the beginning of the list of movements

Definition at line 49 of file Move.cpp.

Referenced by VisualContext::beginMove().

                         {
  MoveIterator m(this);
  return m;
}

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MoveIterator Move::end

(

)

Return an iterator in order to get the possible movements.

Returns:

iterator at the end of the list of movements

Definition at line 54 of file Move.cpp.

Referenced by VisualContext::endMove().

                       {
  MoveIterator m(NULL);
  return m;
}

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std::pair< int, int > Move::getAbsCoords	(	move_command	cmd,
		int	i,
		int	j
	)			const

Transform a move_command into a pair of coordinates.

Parameters:

	cmd	mode command
	i	the vertical current coordinate
	j	the horizontal current coordinate

Returns:

the pair of the future coordinate (after the move)

Definition at line 59 of file Move.cpp.

References _next, getAbsCoords(), getHandledMovement(), and getHandledRelCoords().

Referenced by World::addCommand(), getAbsCoords(), and VisualContext::getCell().

                                                                        {
  std::pair<int,int> result;

  if(cmd == getHandledMovement()){

    std::pair<int,int> relatives;
    relatives = getHandledRelCoords();
    result.first = i + relatives.first;
    result.second = j + relatives.second;

  } else if(_next){
    result = _next->getAbsCoords(cmd, i, j);
  } else {
    throw "Illegal move !";
  }
  return result;
}

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std::pair< int, int > Move::getAbsCoords	(	int	i,
		int	j
	)			const

Get the pair of coordinates corresponding to the current movement.

Parameters:

	i	the vertical current coordinate
	j	the horizontal current coordinate

Returns:

the pair of the future coordinate (after the move)

Definition at line 77 of file Move.cpp.

References getAbsCoords(), and getHandledMovement().

                                                      {
  return getAbsCoords(getHandledMovement(), i, j);
}

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move_command Move::opposite

(

move_command

cmd

)

const

Give the opposite movement.

Parameters:

cmd

the command

Returns:

the opposite movement

Definition at line 81 of file Move.cpp.

References _next, getHandledMovement(), getHandledOpposite(), and opposite().

Referenced by VisualContext::opposite(), and opposite().

                                                  {
  move_command res;

  //Can we handle it ?
  if(cmd == getHandledMovement()){
    res = getHandledOpposite();
  } else if(_next){ //We can't, so we ask the next... if any
    res = _next->opposite(cmd);
  } else {
    throw "Illegal move !";
  }
  return res;
}

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The documentation for this class was generated from the following files:

• src/Move.h
• src/Move.cpp

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