1 //![0]

     2 var blockSize = 40;

     3 var maxColumn = 10;

     4 var maxRow = 15;

     5 var maxIndex = maxColumn * maxRow;

     6 var board = new Array(maxIndex);

     7 var component;

     8 

     9 //Index function used instead of a 2D array

    10 function index(column, row) {

    11     return column + (row * maxColumn);

    12 }

    13 

    14 function startNewGame() {

    15     //Delete blocks from previous game

    16     for (var i = 0; i < maxIndex; i++) {

    17         if (board[i] != null)

    18             board[i].destroy();

    19     }

    20 

    21     //Calculate board size

    22     maxColumn = Math.floor(background.width / blockSize);

    23     maxRow = Math.floor(background.height / blockSize);

    24     maxIndex = maxRow * maxColumn;

    25 

    26     //Initialize Board

    27     board = new Array(maxIndex);

    28     for (var column = 0; column < maxColumn; column++) {

    29         for (var row = 0; row < maxRow; row++) {

    30             board[index(column, row)] = null;

    31             createBlock(column, row);

    32         }

    33     }

    34 }

    35 

    36 function createBlock(column, row) {

    37     if (component == null)

    38         component = Qt.createComponent("Block.qml");

    39 

    40     // Note that if Block.qml was not a local file, component.status would be

    41     // Loading and we should wait for the component's statusChanged() signal to

    42     // know when the file is downloaded and ready before calling createObject().

    43     if (component.status == Component.Ready) {

    44         var dynamicObject = component.createObject(background);

    45         if (dynamicObject == null) {

    46             console.log("error creating block");

    47             console.log(component.errorString());

    48             return false;

    49         }

    50         dynamicObject.x = column * blockSize;

    51         dynamicObject.y = row * blockSize;

    52         dynamicObject.width = blockSize;

    53         dynamicObject.height = blockSize;

    54         board[index(column, row)] = dynamicObject;

    55     } else {

    56         console.log("error loading block component");

    57         console.log(component.errorString());

    58         return false;

    59     }

    60     return true;

    61 }

    62 //![0]

    63