Slider

Introduction¶

A container with a track, indicator, thumb and background.

Author: Rex
Game object

Live demos¶

Usage¶

Sample code

Install plugin¶

Load minify file¶

Load plugin (minify file) in preload stage

scene.load.scenePlugin('rexuiplugin', 'https://raw.githubusercontent.com/rexrainbow/phaser3-rex-notes/master/dist/rexuiplugin.min.js', 'rexUI', 'rexUI');

Add slider object

var slider = scene.rexUI.add.slider(config);

Import plugin¶

Install rex plugins from npm
```
npm i phaser3-rex-plugins
```

Install plugin in configuration of game

import UIPlugin from 'phaser3-rex-plugins/templates/ui/ui-plugin.js';
var config = {
    // ...
    plugins: {
        scene: [{
            key: 'rexUI',
            plugin: UIPlugin,
            mapping: 'rexUI'
        },
        // ...
        ]
    }
    // ...
};
var game = new Phaser.Game(config);

Add slider object

var slider = scene.rexUI.add.slider(config);

Import class¶

Install rex plugins from npm
```
npm i phaser3-rex-plugins
```

Import class

import { Slider } from 'phaser3-rex-plugins/templates/ui/ui-components.js';

Add slider object

var slider = new Slider(scene, config);
scene.add.existing(slider);

Add slider object¶

var slider = scene.rexUI.add.slider({
    // x: 0,
    // y: 0,
    // anchor: undefined,
    // width: undefined,
    // height: undefined,

    orientation: 0,
    reverseAxis: false,

    background: backgroundGameObject,
    /* 
    background: { 
        radius: 0, 
        color: undefined, alpha: 1,
        strokeColor: undefined, strokeAlpha: 1, strokeWidth: 2,
        shape: undefined
    }
    */

    track: trackGameObject,
    /* 
    track: { 
        width: 1, height: 1,
        radius: 0, 
        color: undefined, alpha: 1,
        strokeColor: undefined, strokeAlpha: 1, strokeWidth: 2,
        shape: undefined
    }
    */    

    indicator: indicatorGameObject,
    /* 
    indicator: { 
        width: 1, height: 1,
        radius: 0, 
        color: undefined, alpha: 1,
        strokeColor: undefined, strokeAlpha: 1, strokeWidth: 2,
        shape: undefined
    }
    */

    thumb: thumbGameObject,
    /* 
    thumb: { 
        width: 1, height: 1,
        radius: 0, 
        color: undefined, alpha: 1,
        strokeColor: undefined, strokeAlpha: 1, strokeWidth: 2,
        shape: undefined
    }
    */

    input: 'drag',

    value: 0,
    gap: undefined,
    easeValue: {
        duration: 0,
        ease: 'Linear'
    },    
    valuechangeCallback: function(newValue, oldValue, slider) {
    },

    space: {
        left: 0,
        right: 0,
        top: 0,
        bottom: 0,
    },

    enable: true,

    // name: '',
    // draggable: false,
    // sizerEvents: false,
    // enableLayer: false,
});

x, y : Position of this object, it is valid when this object is the top object.
anchor : See anchor.
- left, right, centerX, x, top, bottom, centerY, y : Position based on visible window, which composed of
  - Percentage of visible width/height : 'p%', p: 0 ~ 100.
    - 'left'(=0%), 'center'(=50%), 'right'(=100%)
    - 'top'(=0%), 'center'(=50%), 'bottom'(=100%)
  - Offset : '+n', or '-n'.
- width, height : Set size (invoke onResizeCallback) based on visible window, which composed of
  - Percentage of visible width/height : 'p%', p: 0 ~ 100.
  - Padding : '+n', or '-n'.
- onResizeCallback : A default resize callback will be assigned interanlly.
width, height : Minimum width, minimum height.
orientation :
- 'left-to-right', 'horizontal','h', 'x', or 0 : Horizontal slider.
- 'top-to-bottom', 'vertical','v', 'y', or 1 : Vertical slider.
reverseAxis :
- false : Map left/top to 0, and right/bottom to 1. Default behavior.
- true : Map left/top to 1, and right/bottom to 0.

background :

Game object of background, optional. This background game object will be resized to fit the size of slider.

A plain object to create round rectangle shape

{ 
    radius: 0, 
    color: undefined, alpha: 1,
    strokeColor: undefined, strokeAlpha: 1, strokeWidth: 2,
    shape: undefined
}

track :

Game object of track, optional. This track game object will be resized to fit the size of slider, with space.

A plain object to create round rectangle shape

{ 
    width: 1, height: 1,
    radius: 0, 
    color: undefined, alpha: 1,
    strokeColor: undefined, strokeAlpha: 1, strokeWidth: 2,
    shape: undefined
}

indicator :

Game object of indicator, optional.

A plain object to create round rectangle shape

{ 
    width: 1, height: 1,
    radius: 0, 
    color: undefined, alpha: 1,
    strokeColor: undefined, strokeAlpha: 1, strokeWidth: 2,
    shape: undefined
}

thumb :

Game object of thumb, optional.

A plain object to create round rectangle shape

{ 
    width: 1, height: 1,
    radius: 0, 
    color: undefined, alpha: 1,
    strokeColor: undefined, strokeAlpha: 1, strokeWidth: 2,
    shape: undefined
}

input :
- 'pan', 'drag', or 0 : Control slider by panning/dragging thumb game object. Default setting.
- 'click', or 1 : Control slider by touching track game object.
- 'none', or -1 : Disable sider controlling.
value : Initial value (0 ~ 1).
gap : Snap a value to nearest grid slice, using rounding.
- undefined : Disalbe this feature.
easeValue : Easing value when input is 'click'.
- easeValue.duration : Duration of value easing, default is 0 (no easing).
- easeValue.ease : Ease function, default is 'Linear'.
valuechangeCallback : callback function when value changed.
```
function(newValue, oldValue, slider) {
}
```
space : Pads spaces
- space.left, space.right, space.top, space.bottom : Space of bounds.
enable : Set false to disable controlling.
name : Set name of this game object.
draggable : Set true to drag top-most object.
sizerEvents : Set true to fire sizer events. Default value is false.
enableLayer :
- false : Add child game objects into scene's display list. Default behavior.
- true : Add child game objects into an internal layer game object. See also.

Custom class¶

Define class

class MySlider extends RexPlugins.UI.Slider {
    constructor(scene, config) {
        super(scene, config);
        // ...
        scene.add.existing(this);
    }
    // ...
}

Create instance

var slider = new MySlider(scene, config);

Layout children¶

Arrange position of all elements.

slider.layout();

Get element¶

Get element

Background game object

var background = slider.getElement('background');

Track game object

var track = slider.getElement('track');

Indicator game object

var track = slider.getElement('indicator');

Thumb track game object

var action = slider.getElement('thumb');

Get by name

var gameObject = slider.getElement('#' + name);
// var gameObject = slider.getElement('#' + name, recursive);

or

var gameObject = slider.getByName(name);
// var gameObject = slider.getByName(name, recursive);

recursive : Set true to search all children recursively.

Enable¶

Get
```
var enable = slider.enable;
```

Set

slider.setEanble(enable);

or

slider.enable = enable;

Value¶

Change value will also change the position of slider thumb and width of slider indicator.

Get value

var value = slider.getValue(min, max); // value : min ~ max

or

var value = slider.getValue(); // value: 0 ~ 1

or

var value = slider.value; // value: 0 ~ 1

Set value

slider.setValue(value, min, max); // value: min ~ max

or

slider.setValue(value); // value: 0 ~ 1

or

slider.value = value; // value: 0 ~ 1

Increase value

slider.addValue(inc, min, max); // inc: min ~ max

or

slider.addValue(inc); // inc: 0 ~ 1

or

slider.value += inc; // inc: 0 ~ 1

Ease value¶

Ease value to

slider.easeValueTo(value, min, max);  // value: min ~ max

or

slider.easeValueTo(value);  // value: 0 ~ 1

Stop ease
```
slider.stopEaseValue();
```
Set ease duration
```
slider.setEaseValueDuration(duration);
```
Set ease function
```
slider.setEaseValueFunction(ease);
```
- ease : Ease function.

Gap¶

Set

slider.setGap(gap);  // gap: 0~1

or

slider.setGap(gap, min, max);  // gap: min~max

Get
```
var gap = slider.gap;  // gap: 0~1
```

Events¶

On value changed

slider.on('valuechange', function(newValue, oldValue, slider){
    //
}, scope);

On input start

slider.on('inputstart', function(pointer) {

}, scope);

On input end

slider.on('inputend', function(pointer) {

}, scope);

Other properties¶

See sizer object, base sizer object, container-lite.