aninest root / Animatable / changeInterpFunction

changeInterpFunction()

function changeInterpFunction<Animating>(
   anim, 
   interp, 
   mask): void

Changes the interpolation function of specific subproperties based on the mask.

Note: you only have the granularity of each dictionary level. For instance, if you had the following animation structure:

const anim = createAnimation({a: {x: 0, y: 0}, b: {x: 0, y: 0}}, getLinearInterp(1))

then you could change the interpolation function of a and b but not a.x and a.y. To change a.x seprately from a.y, this would be your structure:

const anim = createAnimation({a: {x: {value: 0}, y: {value: 0}}, b: {x: 0, y: 0}}, getLinearInterp(1))
// only changes `a.x` interp function
changeInterpFunction(anim, getLinearInterp(2), {a: {x: true, y: false}, b: false})

Then to get the value of a.x you would call getLocalState(anim.children.a.children.x).value.

To get the value of both x and y and simply store set the variables x and y to the respective values you could do:

const {x: {value: x}, y: {value: y}} = getStateTree(anim.children.a)

Type Parameters

• Animating extends RecursiveAnimatable<unknown>

Parameters

• anim: Animation<Animating>

• interp: Interp

• mask: Partial<Mask<Animating>> = {}

Assumes default of true for all keys. It is optional.

Returns

void

Example

const anim = createAnimation({a: newVec2(0, 0), b: newVec2(0, 0)}, getLinearInterp(1))
modifyTo(anim, {a: newVec2(1, 1), b: newVec2(1, 1)})
getStateTree(anim) // {a: {x: 0, y: 0}, b: {x: 0, y: 0}}
updateAnimation(anim, 0.5)
getStateTree(anim) // {a: {x: 0.5, y: 0.5}, b: {x: 0.5, y: 0.5}}
changeInterpFunction(anim, getLinearInterp(2), {a: false}) // doesn't change a, does change b
updateAnimation(anim, 0.5)
getStateTree(anim) // {a: {x: 0.5, y: 0.5}, b: {x: 0.75, y: 0.75}}

Defined in

Animate/Animatable.ts:513