/
TileToWorldX.js
38 lines (32 loc) · 1.14 KB
/
TileToWorldX.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2020 Photon Storm Ltd.
* @license {@link https://opensource.org/licenses/MIT|MIT License}
*/
/**
* Converts from tile X coordinates (tile units) to world X coordinates (pixels), factoring in the
* layer's position, scale and scroll.
*
* @function Phaser.Tilemaps.Components.TileToWorldX
* @since 3.0.0
*
* @param {number} tileX - The x coordinate, in tiles, not pixels.
* @param {Phaser.Cameras.Scene2D.Camera} camera - The Camera to use when calculating the tile index from the world values.
* @param {Phaser.Tilemaps.LayerData} layer - The Tilemap Layer to act upon.
*
* @return {number}
*/
var TileToWorldX = function (tileX, camera, layer)
{
var tileWidth = layer.baseTileWidth;
var tilemapLayer = layer.tilemapLayer;
var layerWorldX = 0;
if (tilemapLayer)
{
if (!camera) { camera = tilemapLayer.scene.cameras.main; }
layerWorldX = tilemapLayer.x + camera.scrollX * (1 - tilemapLayer.scrollFactorX);
tileWidth *= tilemapLayer.scaleX;
}
return layerWorldX + tileX * tileWidth;
};
module.exports = TileToWorldX;