2017-11-16 19:09:07 +00:00
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var IsInLayerBounds = require('./IsInLayerBounds');
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2017-11-27 13:33:30 +00:00
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/**
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* Checks if there is a tile at the given location (in tile coordinates) in the given layer. Returns
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* false if there is no tile or if the tile at that location has an index of -1.
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*
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* @param {number} tileX - [description]
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* @param {number} tileY - [description]
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* @param {LayerData} layer - [description]
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* @return {boolean}
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*/
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2017-11-15 21:28:15 +00:00
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var HasTileAt = function (tileX, tileY, layer)
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{
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2017-11-16 19:09:07 +00:00
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if (IsInLayerBounds(tileX, tileY, layer))
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{
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var tile = layer.data[tileY][tileX];
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return (tile !== null && tile.index > -1);
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}
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else
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2017-11-15 21:28:15 +00:00
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{
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return false;
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}
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};
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module.exports = HasTileAt;
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