/**

* @author Richard Davey <rich@photonstorm.com>

* @copyright 2018 Photon Storm Ltd.

* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}

*/

var Formats = require('../Formats');

var LayerData = require('../mapdata/LayerData');

var MapData = require('../mapdata/MapData');

var Tile = require('../Tile');

/**

* Parses a 2D array of tile indexes into a new MapData object with a single layer.

*

* @function Phaser.Tilemaps.Parsers.Parse2DArray

* @since 3.0.0

*

* @param {string} name - The name of the tilemap, used to set the name on the MapData.

* @param {integer[][]} data - 2D array, CSV string or Tiled JSON object.

* @param {integer} tileWidth - The width of a tile in pixels.

* @param {integer} tileHeight - The height of a tile in pixels.

* @param {boolean} insertNull - Controls how empty tiles, tiles with an index of -1, in the map

* data are handled. If `true`, empty locations will get a value of `null`. If `false`, empty

* location will get a Tile object with an index of -1. If you've a large sparsely populated map and

* the tile data doesn't need to change then setting this value to `true` will help with memory

* consumption. However if your map is small or you need to update the tiles dynamically, then leave

* the default value set.

*

* @return {Phaser.Tilemaps.MapData} [description]

*/

var Parse2DArray = function (name, data, tileWidth, tileHeight, insertNull)

{

var layerData = new LayerData({

tileWidth: tileWidth,

tileHeight: tileHeight

});

var mapData = new MapData({

name: name,

tileWidth: tileWidth,

tileHeight: tileHeight,

format: Formats.ARRAY_2D,

layers: [ layerData ]

});

var tiles = [];

var height = data.length;

var width = 0;

for (var y = 0; y < data.length; y++)

{

tiles[y] = [];

var row = data[y];

for (var x = 0; x < row.length; x++)

{

var tileIndex = parseInt(row[x], 10);

if (isNaN(tileIndex) || tileIndex === -1)

{

tiles[y][x] = insertNull

? null

: new Tile(layerData, -1, x, y, tileWidth, tileHeight);

}

else

{

tiles[y][x] = new Tile(layerData, tileIndex, x, y, tileWidth, tileHeight);

}

}

if (width === 0)

{

width = row.length;

}

}

mapData.width = layerData.width = width;

mapData.height = layerData.height = height;

mapData.widthInPixels = layerData.widthInPixels = width * tileWidth;

mapData.heightInPixels = layerData.heightInPixels = height * tileHeight;

layerData.data = tiles;

return mapData;

};

module.exports = Parse2DArray;