package southgrove.game.board.core;

import java.util.Comparator;

public final class TetrominoDepthSorter implements Comparator<Tetromino>
{

    @Override
    public int compare(Tetromino tetrominoA, Tetromino tetrominoB)
    {
        return tetrominoA.getGridPosZ() > tetrominoB.getGridPosZ() ? 1 : -1;
    }

}

---------------------

11-20 11:20:57.614: ERROR/AndroidRuntime(20177): FATAL EXCEPTION: GLThread 9
11-20 11:20:57.614: ERROR/AndroidRuntime(20177): java.lang.IllegalArgumentException: Comparison method violates its general contract!
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at java.util.TimSort.mergeHi(TimSort.java:864)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at java.util.TimSort.mergeAt(TimSort.java:481)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at java.util.TimSort.mergeForceCollapse(TimSort.java:422)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at java.util.TimSort.sort(TimSort.java:219)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at java.util.TimSort.sort(TimSort.java:169)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at java.util.Arrays.sort(Arrays.java:1907)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at java.util.Collections.sort(Collections.java:1972)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at southgrove.game.board.BoardBase.drop(BoardBase.java:181)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at southgrove.game.Test$GameBoard.onLogic(Test.java:154)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at southgrove.game.board.BoardBase.onDraw(BoardBase.java:232)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at southgrove.droidgl.core.NodeBase.onDrawFrame(NodeBase.java:104)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at southgrove.droidgl.core.NodeBase.onDrawFrame(NodeBase.java:110)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at southgrove.droidgl.DroidGL.onDrawFrame(DroidGL.java:44)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1332)
11-20 11:20:57.614: ERROR/AndroidRuntime(20177):     at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1116)