phaser/src/tilemaps/components/RemoveTileAt.js

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var Tile = require('../Tile');
var IsInLayerBounds = require('./IsInLayerBounds');
var CalculateFacesAt = require('./CalculateFacesAt');
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/**
* Removes the tile at the given tile coordinates in the specified layer and updates the layer's
* collision information.
*
* @param {integer|Tile} tile - The index of this tile to set or a Tile object.
* @param {integer} tileX - [description]
* @param {integer} tileY - [description]
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* @param {boolean} [replaceWithNull=true] - If true, this will replace the tile at the specified
* location with null instead of a Tile with an index of -1.
* @param {boolean} [recalculateFaces=true] - [description]
* @param {LayerData} layer - [description]
* @return {Tile} The Tile object that was removed.
*/
var RemoveTileAt = function (tileX, tileY, replaceWithNull, recalculateFaces, layer)
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{
if (replaceWithNull === undefined) { replaceWithNull = false; }
if (recalculateFaces === undefined) { recalculateFaces = true; }
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if (!IsInLayerBounds(tileX, tileY, layer)) { return null; }
var tile = layer.data[tileY][tileX];
if (tile === null)
{
return null;
}
else
{
layer.data[tileY][tileX] = replaceWithNull
? null
: new Tile(layer, -1, tileX, tileY, tile.width, tile.height);
}
// Recalculate faces only if the removed tile was a colliding tile
if (recalculateFaces && tile && tile.collides)
{
CalculateFacesAt(tileX, tileY, layer);
}
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return tile;
};
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module.exports = RemoveTileAt;