Stacker.jack

/**
 * Implements the main menu of the game.
 * The user presses 'p' to play and 'q' to quit.
 */

class Stacker {
  field Array menuStr;
  field boolean quit;
  field int key;
  field StackerGame game;

  constructor Stacker new() {
    let menuStr = Array.new(4);
    let menuStr[0] = "S T A C K E R";
    let menuStr[1] = "-------------";
    let menuStr[2] = "Stack blocks by pressing SPACE to lock the row in place";
    let menuStr[3] = "Press 'p' to play, 'q' to quit.";
    return this;
  }

  method void run() {
    while (~(key = Constants.KEY_Q())) {
      do Screen.clearScreen();
      do Output.moveCursor(10, 26);
      do Output.printString(menuStr[0]);
      do Output.moveCursor(11, 26);
      do Output.printString(menuStr[1]);
      do Output.moveCursor(13, 4);
      do Output.printString(menuStr[2]);
      do Output.moveCursor(15, 17);
      do Output.printString(menuStr[3]);

      while (key = 0) {
        let key = Keyboard.keyPressed();
      }

      if (key = Constants.KEY_P()) {
        do Screen.clearScreen();
        let game = StackerGame.new();
        do game.run();
        do game.dispose();
        let key = 0;
      }
    }
    return;
  }

  method void dispose() {
    do Memory.deAlloc(this);
    return;
  }
}