Android Open Source - slider Robot Frame

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License

The source code is released under:

Apache License

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Java Source Code

package de.devisnik.sliding.impl;
//from www  .  j a v a2 s  .com
import java.util.ArrayList;

import de.devisnik.sliding.FromHomeShiftingEvent;
import de.devisnik.sliding.IMove;
import de.devisnik.sliding.IPiece;
import de.devisnik.sliding.IRandom;
import de.devisnik.sliding.IRobotFrame;
import de.devisnik.sliding.MoveFactory;
import de.devisnik.sliding.Point;
import de.devisnik.sliding.ShiftingEvent;
import de.devisnik.sliding.ToHomeShiftingEvent;

public class RobotFrame extends Frame implements IRobotFrame {

  private Scrambler itsScrambler;
  private IMove[] itsMoves = new IMove[0];
  private int itsNextMoveIndex = -1;

  public RobotFrame(int x, int y, IRandom random) {
    super(x, y);
    itsScrambler = new Scrambler(this, random);
  }

  public final boolean isResolved() {
    return itsNextMoveIndex == -1;
  }

  public boolean replayNext() {
    if (isResolved())
      return false;
    execute(MoveFactory.getInverse(itsMoves[itsNextMoveIndex]));
    itsNextMoveIndex--;
    return true;
  }

  public boolean scramble() {
    if (!isResolved())
      return false;
    itsMoves = itsScrambler.scramble();
    itsNextMoveIndex = itsMoves.length - 1;
    ArrayList<ShiftingEvent> events = new ArrayList<ShiftingEvent>();
    for (IPiece piece : this)
      events.add(new FromHomeShiftingEvent(piece));
    fireShiftingEvents(events.toArray(new ShiftingEvent[0]));
    return true;
  }

  public void resolve() {
    if (isResolved())
      return;
    ArrayList<ShiftingEvent> events = new ArrayList<ShiftingEvent>();
    for (IPiece piece : this) {
      events.add(new ToHomeShiftingEvent(piece));
      putAtHome(piece);
    }
    itsNextMoveIndex = -1;
    fireShiftingEvents(events.toArray(new ShiftingEvent[0]));
  }

  private void putAtHome(IPiece piece) {
    Point homePosition = piece.getHomePosition();
    putPieceAt((Piece) piece, homePosition.x, homePosition.y);
  }

}

Java Source Code List