title: Android game logic problem
body: <p>I'm currently creating a game and have a problem which I think I know why it is occurring but not entirely sure and even if I knew, don't know how to solve.
  I have a 2D array 10 x 10 and have a "player" class that takes up a tile.
  Now, I have created 2 instances of the player and move them around via swiping.
  Around the edges I have put "walls" that the player cannot walk through and everything works fine, until I remove a wall.
  Once I remove a wall and move the character/player to the edge of the screen, the player cannot go any further.
  The problem occurs here, where the second instance of the player is not at the edge of the screen but say 2 tiles from the first instance of "player" who is at the edge.
  If I try moving them further into the direction of the edge, I understand that the first instance of player wouldn't move or do anything but the second instance of player should still move, but it won't.</p>
  
  <p>This is the code that executed when the user swipes:</p>
  
  <pre><code>if (player.getArrayX() - 1 != player2.getArrayX()) {
      player.moveLeft();
  } else if (player.getArrayX() - 1 == player2.getArrayX() &amp;&amp; player.getArrayY() != player2.getArrayY()) {
      player.moveLeft();
  }
  
  if (player2.getArrayX() - 1 != player.getArrayX()) {
      player2.moveLeft();
  } else if (player2.getArrayX() - 1 == player.getArrayX() &amp;&amp; player2.getArrayY() != player.getArrayY()) {
      player2.moveLeft();
  }
  </code></pre>
  
  <p>In the player class I have:</p>
  
  <pre><code>public void moveLeft() {
      if (alive) {
          switch (levelMaster.getLevel1(getArrayX() - 1, getArrayY())) {
          case 0:
              break;
          case 1:
              subX(); // basically moves player left
              setArrayX(getArrayX() - 1); // shifts x coord of player 1 within tilemap
              Log.d("semajhan", "x: " + getArrayX());
              break;
          case 9:
              subX();
              setArrayX(getArrayX() - 1);
              setAlive(false);
              break;
          }
      }
  }
  </code></pre>
  
  <p>Any help on the matter or further insight would be greatly appreciated, thanks.</p>