class Opal::Animation::Tween

• Opal::Animation::Tween
• Reference
• Object

Overview

Flexible numeric animator supporting both delta updates and wall-clock timestamps

Defined in:

opal/style/animation.cr

Constructors

• .new(from_val : Float64, to_val : Float64, duration : Time::Span, easing : Easing | Symbol = Easing::Linear, yoyo : Bool = false, looping : Bool = false)

  Modern span/delta constructor

• .new(from : Float64, to : Float64, duration_ms : Int64 = 300_i64, easing : Symbol = :ease_out_quad, start_time : Time::Instant = Time.instant)

  Legacy ms/instant constructor

Instance Method Summary

• #current_val : Float64
• #current_value(now : Time::Instant = Time.instant) : Float64
• #duration : Time::Span
• #duration=(duration : Time::Span)
• #duration_ms : Int64
• #duration_ms=(duration_ms : Int64)
• #easing : Easing
• #easing=(easing : Easing)
• #elapsed : Float64
• #finished=(finished : Bool)
• #finished?(now : Time::Instant = Time.instant) : Bool
• #from : Float64
• #from=(from : Float64)
• #looping=(looping : Bool)
• #looping? : Bool
• #on_complete(&block : -> Nil) : self
• #on_update(&block : Float64 -> Nil) : self
• #progress : Float64
• #start_time : Time::Instant
• #to : Float64
• #to=(to : Float64)
• #update(dt : Float64) : Float64
• #yoyo=(yoyo : Bool)
• #yoyo? : Bool

Constructor Detail

Instance Method Detail