Rect Class

Extends ValueType

Module: cc

A 2D rectangle defined by x, y position and width, height.

Index

Properties

• x Number
• y Number
• width Number
• height Number
• xMin Number The minimum x value, equals to rect.x
• yMin Number The minimum y value, equals to rect.y
• xMax Number The maximum x value.
• yMax Number The maximum y value.
• center Vec2 The position of the center of the rectangle.
• origin Vec2 The X and Y position of the rectangle.
• size Size Width and height of the rectangle.

Methods

• constructor Constructor of Rect class.
• fromMinMax Creates a rectangle from two coordinate values.
• clone TODO
• equals TODO
• lerp TODO
• intersects Check whether the current rectangle intersects with the given one
• intersection Returns the overlapping portion of 2 rectangles.
• contains Check whether the current rect contains the given point
• containsRect Returns true if the other rect totally inside this rectangle.
• union Returns the smallest rectangle that contains the current rect and the given rect.
• transformMat4 Apply matrix4 to the rect.
• toString Output rect informations to string
• set Copys all the properties from another given object to this value.

Details

Properties

x

y

width

height

xMin

The minimum x value, equals to rect.x

yMin

The minimum y value, equals to rect.y

xMax

The maximum x value.

yMax

The maximum y value.

center

The position of the center of the rectangle.

origin

The X and Y position of the rectangle.

size

Width and height of the rectangle.

Methods

constructor

Constructor of Rect class. see cc.rect for convenience method.

Parameters

• x Number
• y Number
• w Number
• h Number

fromMinMax

Creates a rectangle from two coordinate values.

Parameters

• v1 Vec2
• v2 Vec2

Examples

cc.Rect.fromMinMax(cc.v2(10, 10), cc.v2(20, 20)); // Rect {x: 10, y: 10, width: 10, height: 10};

clone

TODO

Examples

var a = new cc.Rect(0, 0, 10, 10);
a.clone();// Rect {x: 0, y: 0, width: 10, height: 10}

equals

TODO

Parameters

• other Rect

Examples

var a = new cc.Rect(0, 0, 10, 10);
var b = new cc.Rect(0, 0, 10, 10);
a.equals(b);// true;

lerp

TODO

Parameters

• to Rect
• ratio Number the interpolation coefficient.
• out Rect optional, the receiving vector.

Examples

var a = new cc.Rect(0, 0, 10, 10);
var b = new cc.Rect(50, 50, 100, 100);
update (dt) {
   // method 1;
   var c = a.lerp(b, dt * 0.1);
   // method 2;
   a.lerp(b, dt * 0.1, c);
}

intersects

Check whether the current rectangle intersects with the given one

Parameters

• rect Rect

Examples

var a = new cc.Rect(0, 0, 10, 10);
var b = new cc.Rect(0, 0, 20, 20);
a.intersects(b);// true

intersection

Returns the overlapping portion of 2 rectangles.

Parameters

• out Rect Stores the result
• rectB Rect

Examples

var a = new cc.Rect(0, 10, 20, 20);
var b = new cc.Rect(0, 10, 10, 10);
var intersection = new cc.Rect();
a.intersection(intersection, b); // intersection {x: 0, y: 10, width: 10, height: 10};

contains

Check whether the current rect contains the given point

Parameters

• point Vec2

Examples

var a = new cc.Rect(0, 0, 10, 10);
var b = new cc.Vec2(0, 5);
a.contains(b);// true

containsRect

Returns true if the other rect totally inside this rectangle.

Parameters

• rect Rect

Examples

var a = new cc.Rect(0, 0, 20, 20);
var b = new cc.Rect(0, 0, 10, 10);
a.containsRect(b);// true

union

Returns the smallest rectangle that contains the current rect and the given rect.

Parameters

• out Rect Stores the result
• rectB Rect

Examples

var a = new cc.Rect(0, 10, 20, 20);
var b = new cc.Rect(0, 10, 10, 10);
var union = new cc.Rect();
a.union(union, b); // union {x: 0, y: 10, width: 20, height: 20};

transformMat4

Apply matrix4 to the rect.

Parameters

• out Rect The output rect
• mat Mat4 The matrix4

toString

Output rect informations to string

Examples

var a = new cc.Rect(0, 0, 10, 10);
a.toString();// "(0.00, 0.00, 10.00, 10.00)";

set

Copys all the properties from another given object to this value.

Parameters

• source ValueType the source to copy