impact-interpolation

Smoothly tween numbers in ImpactJS.

Example

new ig.Interpolation(start, end, duration[, ease])

// Create a new instance...
var start = 0;
var end = 10;
var duration = 3;
var ease = ig.Interpolation.EASE.OUT;
var interpolation = new ig.Interpolation(
    start, end, duration, ease);

// When 0 seconds have past...
console.log(interpolation.value); // 0
console.log(interpolation.done); // false

// When between 0 and 10 seconds have past...
console.log(interpolation.value); // number between 0-10
console.log(interpolation.done); // false

// When 10 or more seconds have past...
console.log(interpolation.value); // 10
console.log(interpolation.done); // true

Ease Functions

• ig.Interpolation.EASE.IN
• ig.Interpolation.EASE.OUT
• ig.Interpolation.EASE.SMOOTHSTEP

Properties

.start

The initial number to start counting from.

.end

The target number to end on.

.duration

The time in seconds from start to end.

.value

The current interpolation value.

.done

Boolean that is true after duration elapses.