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<h1 class="file-heading">File: src\hud\widgets\IconBar.ts</h1>
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<pre class="code prettyprint linenums">
/**
*
* @module HUD
* @submodule Widget
*/
module Kiwi.HUD.Widget {
/**
* The IconBar used to display a series of icons which represent a number of 'something' the user may have.
* Example: If you had a shooter style game you might want to display the amount of 'ammo' left in the gun using a series of bullet icons. You could then use this IconBar to display that series.
* The amount is based of a counter components current value, so you can set a maximum and minimum number of images to be displayed.
*
* @class IconBar
* @extends Kiwi.HUD.HUDWidget
* @namespace Kiwi.HUD.Widget
* @constructor
* @param game {Kiwi.Game} The game that this icon bar belongs to.
* @param atlas {Kiwi.Textures.TextureAtlas} The texture atlas that the icons will have.
* @param current {number} The current amount of icons in the bar.
* @param max {number} The maximum number of icons.
* @param x {number} The x coordinates of the first icon.
* @param y {number} The y coordinates of the last icon.
* @return {Kiwi.HUD.Widget.IconBar}
*/
export class IconBar extends Kiwi.HUD.HUDWidget {
constructor(game:Kiwi.Game, atlas: Kiwi.Textures.TextureAtlas, current: number, max: number, x: number, y: number) {
super(game, 'IconBar', x, y);
this.class = 'kiwi-iconbar-widget kiwi-widget';
this.atlas = atlas;
this.width = this.atlas.cells[0].w;
this.height = this.atlas.cells[0].h;
this._horizontal = true;
this.counter = this.components.add(new Kiwi.HUD.HUDComponents.Counter(this, current, max, 0));
this.counter.updated.add(this._amountChanged, this);
this._icons = [];
this._amountChanged();
}
/**
* The type of object that this is.
* @method objType
* @return {String} "IconBarWidget"
* @public
*/
public objType():string {
return 'IconBarWidget';
}
/**
* The amount of spacing you want between each icon in the bar. Defaults to 0.
* @property iconGap
* @type number
* @default 0
* @public
*/
public iconGap: number = 0;
/**
* The texture atlas that each Icon inside the IconBar will use.
* @property atlas
* @type Kiwi.Textures.TextureAtlas
* @public
*/
public atlas: Kiwi.Textures.TextureAtlas;
/**
* The width of a single Icon in the bar. This is based on the width of the first cell in the atlas.
* @property width
* @type number
* @private
*/
private width: number;
/**
* The height of a single Icon in the bar. This is based on the height of the first cell in the atlas.
* @property height
* @type number
* @private
*/
private height: number;
/**
* Knowledge of whether the icons should be horizontal or vertical
* @property _horizontal
* @type boolean
* @default true
* @private
*/
private _horizontal: boolean;
/**
* Holds the counter component.
* @property counter
* @type Kiwi.HUD.HUDComponents.Counter
* @public
*/
public counter: Kiwi.HUD.HUDComponents.Counter;
/**
* An array of all of the icons on the screen. Each item in the array is of the type Kiwi.HUD.Widget.Icon
* @property icons
* @type Array
* @private
*/
private _icons: Kiwi.HUD.Widget.Icon[];
/**
* Gets called when the range has updated and then it updates the size of the bar.
* @method _changeSize
* @private
*/
private _amountChanged() {
//do we need to do something to the icons?!?
if (this.counter.max !== this._icons.length) {
if ((this.counter.max) > this._icons.length) {
//add more
var amount = (this.counter.max) - this._icons.length;
for (var i = 0; i < amount; i++) {
this._addIcon();
}
} else {
//remove some
for (var i = this.counter.max; i < this._icons.length; i++) {
this._removeIcon(this._icons[i]);
this._icons[i].destroy();
this._icons.splice(i, 1);
i--;
}
}
}
//display them all!
for (var i = 0; i < this._icons.length; i++) {
if (i > (this.counter.current - 1)) {
this._icons[i].style.display = 'none';
} else {
this._icons[i].style.display = 'block';
}
}
}
/**
* Creates a new Icon and adds it to this IconBar.
* @method _addIcon
* @private
*/
private _addIcon() {
if (this.horizontal) {
var i: Kiwi.HUD.Widget.Icon = new Kiwi.HUD.Widget.Icon(this.game, this.atlas, this.x + ((this.width + this.iconGap) * (this._icons.length - 1)), 0);
} else {
var i: Kiwi.HUD.Widget.Icon = new Kiwi.HUD.Widget.Icon(this.game, this.atlas, this.x, ((this.height + this.iconGap) * (this._icons.length - 1)));
}
i.horizontalOrigin = this.horizontalOrigin;
i.verticalOrigin = this.verticalOrigin;
this._icons.push(i);
if (this._device == Kiwi.TARGET_BROWSER) {
this.container.appendChild(i.container);
}
}
/**
* Removes a Icon from the container.
* @method _removeIcon
* @param icon {Kiwi.HUD.Widget.Icon} The icon that you want to remove.
* @private
*/
private _removeIcon(icon:Kiwi.HUD.Widget.Icon) {
if (this._device == Kiwi.TARGET_BROWSER) {
this.container.removeChild(icon.container);
}
}
/**
* Used to set the bar to be horizontal or vertical by passing a boolean.
* @property horizontal
* @type boolean
* @default true
* @public
*/
public get horizontal(): boolean {
return this._horizontal;
}
public set horizontal(val: boolean) {
this._horizontal = val;
this._amountChanged();
}
/**
* Used to set the bar to be horizontal or vertical by passing a boolean.
* @property vertical
* @type boolean
* @default false
* @public
*/
public get vertical(): boolean {
return !this._horizontal;
}
public set vertical(val: boolean) {
this._horizontal = !val;
this._amountChanged();
}
/**
* Contains the current CSS style that will used for the x position.
* Should either be `LEFT` or `RIGHT` but these values are not checked upon assignment.
*
* @property horizontalOrigin
* @type string
* @default 'left'
* @since 1.3.0
* @public
*/
public get horizontalOrigin(): string {
return this._horizontalOrigin;
}
public set horizontalOrigin(val: string) {
//Reset the current
this.container.style[this._horizontalOrigin] = 'auto';
//Set the new value
this._horizontalOrigin = val;
this.container.style[this._horizontalOrigin] = this.x + 'px';
//Loop through the children and apply the same origin
var i = 0;
while (i < this._icons.length) {
this._icons[i].horizontalOrigin = val;
i++;
}
}
/**
* Contains the current CSS style that will used for the y position.
* Should either be `TOP` or `BOTTOM` but these values are not checked upon assignment.
*
* @property vertical
* @type string
* @default 'top'
* @since 1.3.0
* @public
*/
public get verticalOrigin(): string {
return this._verticalOrigin;
}
public set verticalOrigin(val: string) {
//Reset the current
this.container.style[this._verticalOrigin] = 'auto';
//Set the new value
this._verticalOrigin = val;
this.container.style[this._verticalOrigin] = this.y + 'px';
//Loop through the children and apply the same origin
var i = 0;
while (i < this._icons.length) {
this._icons[i].verticalOrigin = val;
i++;
}
}
}
}
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