JSDoc: Class: Dragger

Creates a new Dragger object.

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attract(obj) → {Object}

Calculates a force to apply to simulate attraction/repulsion on an object.

Name	Type	Description
`obj`	Object	The target object.

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A force to apply.

drag(obj) → {Object}

Calculates a force to apply to simulate drag on an object.

Name	Type	Description
`obj`	Object	The target object.

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A force to apply.

init(world, opt_options=)

Initializes Dragger.

Name	Type	Argument	Default	Description
`world`	Object			An instance of World.
`opt_options=`	Object	<optional>		A map of initial properties.
`opt_options.c`	number	<optional>	1	Drag coefficient.
`opt_options.mass`	number	<optional>	1000	Mass. Increase for a greater gravitational effect.
`opt_options.isStatic`	boolean	<optional>	true	If true, object will not move.
`opt_options.width`	number	<optional>	100	Width.
`opt_options.height`	number	<optional>	100	Height.
`opt_options.color`	Array	<optional>	92, 187, 0	Color.
`opt_options.borderWidth`	number	<optional>	this.width / 4	Border width.
`opt_options.borderStyle`	string	<optional>	'double'	Border style.
`opt_options.borderColor`	Array	<optional>	224, 228, 204	Border color.
`opt_options.borderRadius`	number	<optional>	100	Border radius.
`opt_options.boxShadowSpread`	number	<optional>	this.width / 4	Box-shadow spread.
`opt_options.boxShadowColor`	Array	<optional>	92, 187, 0	Box-shadow color.
`opt_options.opacity`	number	<optional>	0.75	The object's opacity.
`opt_options.zIndex`	number	<optional>	1	The object's zIndex.

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