AIPlayer Class Reference

#include <ai_player.h>

Inheritance diagram for AIPlayer:

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Detailed Description

This class is a pure interface, that must be implemented by all the AI (Artificial Intelligence) players.

Note: we could implement various strategies (some of which are already implemented):

• best: play the word with the best score (current default implementation)
• second: play the word with the second best score (strictly lower than the best one)
• random: randomly choose one of the possible words
• handicap(p): in the array of the n possible words (sorted by decreasing scores), play the word number i, where i/n is nearest from a predefined percentage p. So 'handicap(0)' should be equivalent to 'best'. This strategy should make an interesting opponent, because you can adapt it to your level, with a careful choice of the p value.

In fact, instead of working on the score of the words, these strategies could work on any other value. In particular, some heuristics could modulate the score with a value indicating the openings offered by the word (if a word makes accessible a "word counts triple" square, it is less interesting than another word with the same score or even with a slightly lower score, but which does not offer such a square).

More evolved heuristics could even take into account the remaining letters in the bag to guess the 'statistical rack' of the opponent, and play a word both maximizing the score and minimizing the opponent's score... Hmmm... i don't think this one will be implemented in a near future :)

Definition at line 60 of file ai_player.h.

Public Member Functions
virtual	~AIPlayer ()
virtual bool	isHuman () const
	No human here. Trespassers will be shot!
virtual void	compute (const Dictionary &iDic, Board &iBoard, int turn)=0
	This method does the actual computation.
virtual bool	changesLetters () const =0
	Return true when the AI wants to change letters instead of playing a word.
virtual const Round &	getChosenRound () const =0
	Return the round played by the AI (if changesLetters() returns false).
virtual vector< Tile >	getChangedLetters () const =0
	Get the letters to change (if changesLetters() returns true).
Protected Member Functions
	AIPlayer (int iId)
	This class is a pure interface, forbid any direct instanciation.

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Constructor & Destructor Documentation

virtual AIPlayer::~AIPlayer (   )  [inline, virtual]

Definition at line 63 of file ai_player.h.

AIPlayer::AIPlayer (  int  iId  )  [inline, protected]

This class is a pure interface, forbid any direct instanciation. Definition at line 87 of file ai_player.h.

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Member Function Documentation

virtual bool AIPlayer::changesLetters (   )  const [pure virtual]

Return true when the AI wants to change letters instead of playing a word. Should return false in duplicate mode, as it is not allowed to change letters. Implemented in AIPercent.

virtual void AIPlayer::compute (  const Dictionary &  iDic, Board &  iBoard, int  turn )  [pure virtual]

This method does the actual computation. It will be called before any of the following methods, so it must prepare everything for them. Implemented in AIPercent.

virtual vector<Tile> AIPlayer::getChangedLetters (   )  const [pure virtual]

Get the letters to change (if changesLetters() returns true). Implemented in AIPercent.

virtual const Round& AIPlayer::getChosenRound (   )  const [pure virtual]

Return the round played by the AI (if changesLetters() returns false). Implemented in AIPercent.

virtual bool AIPlayer::isHuman (   )  const [inline, virtual]

No human here. Trespassers will be shot! Implements Player. Definition at line 66 of file ai_player.h.

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

• game/ai_player.h

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