mirror of
https://github.com/photonstorm/phaser
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108 lines
3 KiB
JavaScript
108 lines
3 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 AlignIn = require('../display/align/in/QuickSet');
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var CONST = require('../display/align/const');
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var GetValue = require('../utils/object/GetValue');
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var NOOP = require('../utils/NOOP');
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var Zone = require('../gameobjects/zone/Zone');
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var tempZone = new Zone({ sys: { queueDepthSort: NOOP }}, 0, 0, 1, 1);
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/**
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* [description]
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*
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* @function Phaser.Actions.GridAlign
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* @since 3.0.0
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*
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* @param {array} items - An array of Game Objects. The contents of this array are updated by this Action.
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* @param {object} options - [description]
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*
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* @return {array} The array of Game Objects that was passed to this Action.
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*/
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var GridAlign = function (items, options)
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{
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var width = GetValue(options, 'width', -1);
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var height = GetValue(options, 'height', -1);
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var cellWidth = GetValue(options, 'cellWidth', 1);
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var cellHeight = GetValue(options, 'cellHeight', cellWidth);
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var position = GetValue(options, 'position', CONST.TOP_LEFT);
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var x = GetValue(options, 'x', 0);
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var y = GetValue(options, 'y', 0);
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// var centerX = GetValue(options, 'centerX', null);
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// var centerY = GetValue(options, 'centerY', null);
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var cx = 0;
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var cy = 0;
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var w = (width * cellWidth);
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var h = (height * cellHeight);
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// If the Grid is centered on a position then we need to calculate it now
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// if (centerX !== null && centerY !== null)
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// {
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//
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// }
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tempZone.setPosition(x, y);
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tempZone.setSize(cellWidth, cellHeight);
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for (var i = 0; i < items.length; i++)
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{
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AlignIn(items[i], tempZone, position);
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if (width === -1)
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{
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// We keep laying them out horizontally until we've done them all
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cy += cellHeight;
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tempZone.y += cellHeight;
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if (cy === h)
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{
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cy = 0;
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tempZone.x += cellWidth;
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tempZone.y = y;
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}
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}
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else if (height === -1)
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{
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// We keep laying them out vertically until we've done them all
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cx += cellWidth;
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tempZone.x += cellWidth;
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if (cx === w)
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{
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cx = 0;
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tempZone.x = x;
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tempZone.y += cellHeight;
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}
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}
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else
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{
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// We keep laying them out until we hit the column limit
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cx += cellWidth;
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tempZone.x += cellWidth;
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if (cx === w)
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{
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cx = 0;
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cy += cellHeight;
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tempZone.x = x;
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tempZone.y += cellHeight;
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if (cy === h)
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{
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// We've hit the column limit, so return, even if there are items left
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break;
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}
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}
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}
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}
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return items;
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};
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module.exports = GridAlign;
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