mirror of
https://github.com/photonstorm/phaser
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50 lines
1.9 KiB
JavaScript
50 lines
1.9 KiB
JavaScript
/**
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* @author Richard Davey <rich@photonstorm.com>
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* @copyright 2018 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
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*/
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var SetTileCollision = require('./SetTileCollision');
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var CalculateFacesWithin = require('./CalculateFacesWithin');
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var SetLayerCollisionIndex = require('./SetLayerCollisionIndex');
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/**
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* Sets collision on all tiles in the given layer, except for tiles that have an index specified in
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* the given array. The `collides` parameter controls if collision will be enabled (true) or
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* disabled (false).
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*
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* @function Phaser.Tilemaps.Components.SetCollisionByExclusion
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* @private
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* @since 3.0.0
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*
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* @param {integer[]} indexes - An array of the tile indexes to not be counted for collision.
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* @param {boolean} [collides=true] - If true it will enable collision. If false it will clear
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* collision.
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* @param {boolean} [recalculateFaces=true] - Whether or not to recalculate the tile faces after the
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* update.
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* @param {Phaser.Tilemaps.LayerData} layer - The Tilemap Layer to act upon.
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*/
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var SetCollisionByExclusion = function (indexes, collides, recalculateFaces, layer)
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{
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if (collides === undefined) { collides = true; }
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if (recalculateFaces === undefined) { recalculateFaces = true; }
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if (!Array.isArray(indexes)) { indexes = [ indexes ]; }
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// Note: this only updates layer.collideIndexes for tile indexes found currently in the layer
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for (var ty = 0; ty < layer.height; ty++)
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{
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for (var tx = 0; tx < layer.width; tx++)
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{
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var tile = layer.data[ty][tx];
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if (tile && indexes.indexOf(tile.index) === -1)
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{
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SetTileCollision(tile, collides);
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SetLayerCollisionIndex(tile.index, collides, layer);
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}
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}
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}
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if (recalculateFaces) { CalculateFacesWithin(0, 0, layer.width, layer.height, layer); }
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};
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module.exports = SetCollisionByExclusion;
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