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https://github.com/photonstorm/phaser
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28 lines
803 B
JavaScript
28 lines
803 B
JavaScript
/**
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* Converts from tile X coordinates (tile units) to world X coordinates (pixels), factoring in the
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* layer's position, scale and scroll.
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*
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* @param {integer} tileX - [description]
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* @param {Camera} [camera=main camera] - [description]
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* @param {LayerData} layer - [description]
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* @returns {number}
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*/
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var TileToWorldX = function (tileX, camera, layer)
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{
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var tileWidth = layer.baseTileWidth;
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var tilemapLayer = layer.tilemapLayer;
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var layerWorldX = 0;
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if (tilemapLayer)
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{
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if (camera === undefined) { camera = tilemapLayer.scene.cameras.main; }
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layerWorldX = tilemapLayer.x + camera.scrollX * (1 - tilemapLayer.scrollFactorX);
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tileWidth *= tilemapLayer.scaleX;
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}
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return layerWorldX + tileX * tileWidth;
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};
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module.exports = TileToWorldX;
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