phaser/v3/src/gameobjects/tilemap/components/Shuffle.js

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var GetTilesWithin = require('./GetTilesWithin');
var ShuffleArray = require('../../../utils/array/Shuffle');
2017-11-27 13:33:30 +00:00
/**
* Shuffles the tiles in a rectangular region (specified in tile coordinates) within the given
* layer. It will only randomize the tiles in that area, so if they're all the same nothing will
* appear to have changed! This method only modifies tile indexes and does not change collision
* information.
*
* @param {number} [tileX=0] - [description]
* @param {number} [tileY=0] - [description]
* @param {number} [width=max width based on tileX] - [description]
* @param {number} [height=max height based on tileY] - [description]
* @param {LayerData} layer - [description]
*/
var Shuffle = function (tileX, tileY, width, height, layer)
{
var tiles = GetTilesWithin(tileX, tileY, width, height, null, layer);
var indexes = tiles.map(function (tile) { return tile.index; });
ShuffleArray(indexes);
for (var i = 0; i < tiles.length; i++)
{
tiles[i].index = indexes[i];
}
};
module.exports = Shuffle;