Curves

##### 📈 Easily define and evaluate eased curves, similar to Unity's AnimationCurves with modifiers akin to Blender's FCurve Modifiers.

Installation:
``npm i curves`

#### npm !npmlogo
#### documentation 📖
#### Live Demo 📉

---

$3

Constructing curves is simple, and evaluating them is even simpler.

`typescript
import { Curve, NumberKeyframe } from 'curves';

const curve: Curve = new Curve(
[
new NumberKeyframe(0, 0),
new NumberKeyframe(1, 2),
new NumberKeyframe(5, 1),
], // Keyframes
);

// Expected output:
// time: 0, value: 0
// time: 1, value: 2
// time: 2, value: 1.9375
// time: 3, value: 1.5
// time: 4, value: 1.0625
// time: 5, value: 1
for (let i = 0; i < 5; i += 1) {
console.log(time: ${i}, value: ${curve.evaluate(i)})
}
`

$3

Curves and keyframes are generic, with 9 built-in type implementations and unlimited potential for more.

`typescript
import {
NumberKeyframe,
StringKeyframe,
BooleanKeyframe,
RGBColorKeyframe,
Vector3Keyframe
} from 'curves';

const numberKeyframe = new NumberKeyframe(0, 4);
const stringKeyframe = new StringKeyframe(1, "Hello world!");
const boolKeyframe = new BooleanKeyframe(2, true);
const colorKeyframe = new RGBColorKeyframe(3, {
r: 255,
g: 125,
b: 0,
});
const vectorKeyframe = new Vector3Keyframe(4, {
x: 1,
y: 4,
z: 0,
});
`

$3

Modifiers of any type are easy to create and add to your curve.

`typescript
import { Curve, Modifiers } from 'curves';

// Define the curve using a builder
const curve: Curve = Curve.builder(
NumberKeyframe,
0,
10,
5,
);

// Add layered noise modifiers
curve.addModifier(new Modifiers.Number.Noise(0.1, 0.5));
curve.addModifier(new Modifiers.Number.Noise(0.025, 2));

// Add a clamp modifier
curve.addModifier(new Modifiers.Number.Clamp(0, 10));
``