animation/io.nacular.doodle.animation/NumericAnimationPlan

NumericAnimationPlan

interface NumericAnimationPlan<T, V>(source)

Low-level animation for values T that can be converted to numeric values using a AnimationDataConverter. This type is used by higher-level APIs like animation and can be created using tween for tween animations that leverage EasingFunctions.

Inheritors

Properties

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abstract val converter: AnimationDataConverter<T, V>

Handles conversions of T to and from V

Functions

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abstract fun finished(start: V, end: V, initialVelocity: Velocity<V>, elapsedTime: Measure<Time>): Boolean

Returns true IFF the animation if completed after elapsedTime. NOTE: implementations SHOULD NOT return true if the animation has not started yet.

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abstract fun value(start: V, end: V, initialVelocity: Velocity<V>, elapsedTime: Measure<Time>): V

Returns the value of the animation at the elapsedTime, given the initial conditions.

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abstract fun velocity(start: V, end: V, initialVelocity: Velocity<V>, elapsedTime: Measure<Time>): Velocity<V>

Returns the velocity of the animation at the elapsedTime, given the initial conditions.