Round Rectangle

Introduction¶

Round rectangle shape.

Author: Rex
Game object

Live demos¶

Round rectangle

Usage¶

Sample code

Install plugin¶

Load minify file¶

Load plugin (minify file) in preload stage

scene.load.plugin('rexroundrectangleplugin', 'https://raw.githubusercontent.com/rexrainbow/    phaser3-rex-notes/master/dist/rexroundrectangleplugin.min.js', true);

Add shape object

var rect = scene.add.rexRoundRectangle(x, y, width, height, radius, fillColor, fillAlpha);

Import plugin¶

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

Install plugin in configuration of game

import RoundRectanglePlugin from 'phaser3-rex-plugins/plugins/roundrectangle-plugin.js';
var config = {
    // ...
    plugins: {
        global: [{
            key: 'rexRoundRectanglePlugin',
            plugin: RoundRectanglePlugin,
            start: true
        },
        // ...
        ]
    }
    // ...
};
var game = new Phaser.Game(config);

Add shape object

var rect = scene.add.rexRoundRectangle(x, y, width, height, radius, fillColor, fillAlpha);

Import class¶

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

Import class

import RoundRectangle from 'phaser3-rex-plugins/plugins/roundrectangle.js';

Add shape object

var rect = new RoundRectangle(scene, x, y, width, height, radius, fillColor, fillAlpha);
scene.add.existing(rect);

Create shape object¶

var rect = scene.add.rexRoundRectangle(x, y, width, height, radius, fillColor, fillAlpha);

or

var rect = scene.add.rexRoundRectangle({
    x: 0,
    y: 0,
    width: undefined,
    height: undefined,
    radius: 0,

    color: undefined,
    alpha: undefined,

    strokeColor: undefined,
    strokeAlpha: undefined,
    strokeWidth: 2
});

width, height : Size of rectangle.
- undefined : Set ot undefined to draw a circle.

radius : Radius of four corners.

0, or undefined : Disable round corner.
Number: 4 corners with the same radius.

JSON

4 corners with the same radius X/Y
```
{
    x: radiusX,
    y: radiusY
}
```

Eeach radius of corner

{
    tl: radius,
    tr: radius,
    bl: radius,
    br: radius
}

or

{
    tl: {x : radiusX, y: radiusY},
    tr: {x : radiusX, y: radiusY},
    bl: {x : radiusX, y: radiusY},
    br: {x : radiusX, y: radiusY},
}

Radius and iteration

{
    radius: radius,
    iteration: 0
}

or

{
    radius: {x: radiusX, y: radiusY},
    iteration: 0
}

or

{
    radius: {
        tl: {x : radiusX, y: radiusY},
        tr: {x : radiusX, y: radiusY},
        bl: {x : radiusX, y: radiusY},
        br: {x : radiusX, y: radiusY},
    },
    iteration: 0
}

radius :
- 0 : No round corner
- > 0 : Convex round corner
- < 0 : Concave round corner
iteration : Number of interpolation points in each round corner. Default value is 4.
- 0 : Draw a straight line instead of arc.

Deform¶

Rectangle, set radius of 4 corners to 0.

var rect = scene.add.rexRoundRectangle(x, y,  width, height, 0, fillColor, fillAlpha);

Circle, set width and height to undefined.

var rect = scene.add.rexRoundRectangle(x, y, undefined, undefined, radius, fillColor, fillAlpha);

Ellipse, set width and height to undefined, and radiusX/radiusY.

var rect = scene.add.rexRoundRectangle(x, y, undefined, undefined, {x: radiusX, y: radiusY}, fillColor, fillAlpha);

Rhombus, set width and height to undefined, and assign iteration to 0

var rect = scene.add.rexRoundRectangle(x, y, undefined, undefined, {
    radius: radius,
    iteration: 0
}, fillColor, fillAlpha);

Octagon, assign iteration to 0

var rect = scene.add.rexRoundRectangle(x, y, width, height, {
    radius: radius,
    iteration: 0
}, fillColor, fillAlpha);

Custom class¶

Define class

class MyRoundRectangle extends RexPlugins.GameObjects.RoundRectangle {
    constructor(scene, x, y, width, height, radius, fillColor, fillAlpha) {
        super(scene, x, y, width, height, radius, fillColor, fillAlpha);
        // ...
        scene.add.existing(this);
    }
    // ...

    // preUpdate(time, delta) {}
}

scene.add.existing(gameObject) : Adds an existing Game Object to this Scene.
- If the Game Object renders, it will be added to the Display List.
- If it has a preUpdate method, it will be added to the Update List.

Create instance

var rect = new MyRoundRectangle(scene, x, y, width, height, radius, fillColor, fillAlpha);

Color¶

Fill color

Get

var color = rect.fillColor;
var alpha = rect.fillAlpha;

Set
```
rect.setFillStyle(color, alpha);
```
Clear
```
rect.setFillStyle();
```

Stroke color

Get
```
var color = rect.strokeColor;
```

Set

rect.setStrokeStyle(lineWidth, color, alpha);

Clear
```
rect.setStrokeStyle();
```

No tint methods

Uses rect.setFillStyle(color, alpha) to change color.

Alpha¶

Get
```
var alpha = rect.alpha;
```

Set

rect.setAlpha(alpha);
// rect.alpha = alpha;

Size¶

Get

var width = rect.width;
var height = rect.height;

Set

rect.setSize(width, height);

or

rect.width = width;
rect.height = height;

Display size¶

Get

var width = rect.displayWidth;
var height = rect.displayHeight;

Set

rect.setDisplaySize(width, height);

or

rect.displayWidth = width;
rect.displayHeight = height;

Radius¶

Get

var radius = rect.radius;
var radiusTL = rect.radiusTL;
var radiusTR = rect.radiusTR;
var radiusBL = rect.radiusBL;
var radiusBR = rect.radiusBR;

or

var cornerRadius = rect.cornerRadius;

radius : Number, maximum radius of 4 corners.

cornerRadius : JSON object of 4 corners.

{
    tl: {x : radiusX, y: radiusY, convex : true},
    tr: {x : radiusX, y: radiusY, convex : true},
    bl: {x : radiusX, y: radiusY, convex : true},
    br: {x : radiusX, y: radiusY, convex : true},
}

Set

rect.setRadius(value);
rect.setRadiusTL(value);  // number, or {x,y}
rect.setRadiusTR(value);  // number, or {x,y}
rect.setRadiusBL(value);  // number, or {x,y}
rect.setRadiusBR(value);  // number, or {x,y}

or

rect.radius = radius;
rect.radiusTL = radius;  // number, or {x,y}
rect.radiusTR = radius;  // number, or {x,y}
rect.radiusBL = radius;  // number, or {x,y}
rect.radiusBR = radius;  // number, or {x,y}

radius :
- Number : 4 corners with the same radius.
  - 0 : No round corner
  - > 0 : Convex round corner
  - < 0 : Concave round corner
- JSON
  - 4 corners with the same radius X/Y
```
{
    x: radiusX,
    y: radiusY
}
```
  - Eeach radius of corner
```
{
    tl: radius,
    tr: radius,
    bl: radius,
    br: radius
}
```
    or ```javascript { tl: {x : radiusX, y: radiusY}, tr: {x : radiusX, y: radiusY}, bl: {x : radiusX, y: radiusY}, br: {x : radiusX, y: radiusY}, }

Iteration¶

Get
```
var iteration = rect.iteration;
```

Set

rect.setIteration(value);

or

rect.iteration = value;

Number of interpolation points in each round corner. Default value is 4.

0 : Draw a straight line instead of arc.

Other properties¶

See game object

Create mask¶

var mask = rect.createGeometryMask();

See mask

Shader effects¶

Support postFX effects

Note

No preFX effect support