mirror of
https://github.com/photonstorm/phaser
synced 2024-12-25 04:23:30 +00:00
61 lines
2 KiB
JavaScript
61 lines
2 KiB
JavaScript
/**
|
|
* @author Richard Davey <rich@photonstorm.com>
|
|
* @copyright 2020 Photon Storm Ltd.
|
|
* @license {@link https://opensource.org/licenses/MIT|MIT License}
|
|
*/
|
|
|
|
/**
|
|
* Takes an array of Game Objects, or any objects that have a public property as defined in `key`,
|
|
* and then sets it to the given value.
|
|
*
|
|
* The optional `step` property is applied incrementally, multiplied by each item in the array.
|
|
*
|
|
* To use this with a Group: `PropertyValueSet(group.getChildren(), key, value, step)`
|
|
*
|
|
* @function Phaser.Actions.PropertyValueSet
|
|
* @since 3.3.0
|
|
*
|
|
* @generic {Phaser.GameObjects.GameObject[]} G - [items,$return]
|
|
*
|
|
* @param {(array|Phaser.GameObjects.GameObject[])} items - The array of items to be updated by this action.
|
|
* @param {string} key - The property to be updated.
|
|
* @param {number} value - The amount to set the property to.
|
|
* @param {number} [step=0] - This is added to the `value` amount, multiplied by the iteration counter.
|
|
* @param {integer} [index=0] - An optional offset to start searching from within the items array.
|
|
* @param {integer} [direction=1] - The direction to iterate through the array. 1 is from beginning to end, -1 from end to beginning.
|
|
*
|
|
* @return {(array|Phaser.GameObjects.GameObject[])} The array of objects that were passed to this Action.
|
|
*/
|
|
var PropertyValueSet = function (items, key, value, step, index, direction)
|
|
{
|
|
if (step === undefined) { step = 0; }
|
|
if (index === undefined) { index = 0; }
|
|
if (direction === undefined) { direction = 1; }
|
|
|
|
var i;
|
|
var t = 0;
|
|
var end = items.length;
|
|
|
|
if (direction === 1)
|
|
{
|
|
// Start to End
|
|
for (i = index; i < end; i++)
|
|
{
|
|
items[i][key] = value + (t * step);
|
|
t++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// End to Start
|
|
for (i = index; i >= 0; i--)
|
|
{
|
|
items[i][key] = value + (t * step);
|
|
t++;
|
|
}
|
|
}
|
|
|
|
return items;
|
|
};
|
|
|
|
module.exports = PropertyValueSet;
|