with respect to an application to turn with the help of a global static variable

Hello. I've read a few articles on JavaFX competition, and as a beginner, so I have to practice on this subject. Now, I'm trying to implement a turn-based application which can be played between 3 to 6 players. Furthermore, I use a scene from a .fxml file and I need to update it properly depends on certain calculations of each thread (in other word players). My main problem is, I don't want to use a while loop that checks the status of similar game;

While (GameState! = State.GAME_OVER) {}

currentPlayer = GameBoard.getNextPlayer ();

perform certain actions, calculations, etc.

}

So, I want to use threads to work instead while loop. I guess only with the help of the Service used to iterate class and assign the next player will be adapted to instead of using the while loop and the tasks for the calculation of each player, or waiting for a few responses of human players on the UI account, however, I am faced with two problems.

  1. It has a global static variable (like the GameState which is an Enumarator) determines the State of the game, so it should be updated and must be verified by each round. Is it possible to do this?
  2. How can I get rid off this while loop?

I would like for each answer. Thanks anyway.

It shouldn't make too much difference. The basic idea is that you have a model class that represents your state of the game (the class of game in example jsmith). When a player makes a move, you update the game state. Because this will result in changes to the user interface, this update must be performed on the Thread of the FX Application.

If the player makes the passage is a human player, the move would be done by a user action (mouse click or press button, etc.); This will be handled on the FX Application thread in any case.

When the State of the game changes so it is in an "artificial" player's turn to move, have the object representing the artificial player calculate his next move and then update the game state. Since it is a response to the evolution of the game state (it is the artificial player's turn), it will also be on the Thread of the FX Application.

The only (slight) complexity comes if the calculation of displacement for the artificial player takes a long time. You don't want to perform this calculation of long duration on the Thread of the FX Application. To handle this, the cleaner is to start a task that computes the desired pass and then updates the status of the game when travel is ready. So, something like this:

GameState game = ... ;
// UI is bound to the game state.
ExecutorService executorService = ... ;
// ...

final Player currentPlayer = game.getCurrentPlayer() ;
final Task calculateMoveTask = new Task() {
     @Override
     public Move call() {
          Move move = // compute next move...
          return move ;
     }
};

calculateMoveTask.setOnSucceeded(new EventHandler() {
     @Override
     public void handle(WorkerStateEvent event) {
          gameState.makeMove(currentPlayer, calculateMoveTask.getValue());
     }
});

executorService.submit(calculateMoveTask);

If you make a thread more than that, you're probably do badly... Also, there should be no need anything it either, will be held in a "global" static variable (the idea above is the only structural change you the example posted by jsmith).

Tags: Java

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