phaser/src/tilemaps/components/SetCollision.js
2019-01-15 16:20:22 +00:00

57 lines
2 KiB
JavaScript

/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2019 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
var SetTileCollision = require('./SetTileCollision');
var CalculateFacesWithin = require('./CalculateFacesWithin');
var SetLayerCollisionIndex = require('./SetLayerCollisionIndex');
/**
* Sets collision on the given tile or tiles within a layer by index. You can pass in either a
* single numeric index or an array of indexes: [2, 3, 15, 20]. The `collides` parameter controls if
* collision will be enabled (true) or disabled (false).
*
* @function Phaser.Tilemaps.Components.SetCollision
* @private
* @since 3.0.0
*
* @param {(integer|array)} indexes - Either a single tile index, or an array of tile indexes.
* @param {boolean} [collides=true] - If true it will enable collision. If false it will clear collision.
* @param {boolean} [recalculateFaces=true] - Whether or not to recalculate the tile faces after the update.
* @param {Phaser.Tilemaps.LayerData} layer - The Tilemap Layer to act upon.
*/
var SetCollision = function (indexes, collides, recalculateFaces, layer)
{
if (collides === undefined) { collides = true; }
if (recalculateFaces === undefined) { recalculateFaces = true; }
if (!Array.isArray(indexes)) { indexes = [ indexes ]; }
// Update the array of colliding indexes
for (var i = 0; i < indexes.length; i++)
{
SetLayerCollisionIndex(indexes[i], collides, layer);
}
// Update the tiles
for (var ty = 0; ty < layer.height; ty++)
{
for (var tx = 0; tx < layer.width; tx++)
{
var tile = layer.data[ty][tx];
if (tile && indexes.indexOf(tile.index) !== -1)
{
SetTileCollision(tile, collides);
}
}
}
if (recalculateFaces)
{
CalculateFacesWithin(0, 0, layer.width, layer.height, layer);
}
};
module.exports = SetCollision;