import {makeScene2D} from '@motion-canvas/2d';

export default makeScene2D(function* (view) {

});

export default makeScene2D(function* (view) {
  const circle = createRef<Circle>();
  view.add(<Circle ref={circle} width={100} height={100} fill={'red'} />);

  yield* circle().position.x(300, 1);
  yield* circle().position.x(-300, 1);
});

function* flicker(circle: Circle, duration: number): ThreadGenerator {
  const colors = ['#e13238', '#e6a700', '#99C47A'];
  for (const color of colors) {
    circle.fill(color);
    yield* waitFor(duration);
  }
}
yield* flicker(myCircle(), 0.5);

import {createSignal} from '@motion-canvas/core';

const radius = createSignal(3);

radius();            // Get → 3
radius(5);           // Set → 5
yield* radius(4, 2); // Tween to 4 over 2 seconds

const area = createSignal(() => Math.PI * radius() * radius());

<Circle width={() => radius() * 2} height={() => radius() * 2} />
yield* radius(200, 1); // Circle updates automatically

const position = Vector2.createSignal(Vector2.up);
yield* position(Vector2.zero, 1);

import {DEFAULT} from '@motion-canvas/core';
signal(DEFAULT);             // Instant reset
yield* signal(DEFAULT, 2);   // Tween to default

const circle = createRef<Circle>();
<Circle ref={circle} width={100} height={100} fill={'red'} />
yield* circle().scale(2, 0.3);

const circles: Circle[] = [];
{range(10).map(index => (
  <Circle ref={makeRef(circles, index)} x={index * 50} width={40} height={40} />
))}
yield* all(...circles.map(c => c.scale(1.5, 0.5)));

const labels = createRefMap<Txt>();
<Txt ref={labels.a} text="Label A" />
<Txt ref={labels.b} text="Label B" />
yield* labels.a().text('Updated A', 0.3);

view.add(<Circle />);               // Add to view
container().add(<Circle />);         // Add to node
container().insert(<Circle />, 0);   // Insert at index
circle().remove();                   // Remove
container().removeChildren();        // Remove all children
circle().reparent(newParent());      // Move to new parent

import {is} from '@motion-canvas/2d';
const textNodes = view.findAll(is(Txt));
const firstCircle = view.findFirst(is(Circle));

yield* circle().save();
yield* all(circle().position.x(300, 1), circle().scale(2, 1));
yield* circle().restore(1); // Animate back to saved state

import {waitFor, waitUntil, useDuration} from '@motion-canvas/core';

yield* waitFor(2);                    // Wait 2 seconds
yield* waitUntil('voice-line-2');     // Wait for named event
const dur = useDuration('segment');   // Get event duration

// Spawn a background thread (do NOT yield — spawn starts it automatically)
const task = spawn(function* () {
  yield* loop(Infinity, function* () {
    yield* circle().rotation(360, 2);
    circle().rotation(0);
  });
});

// Cancel a running thread
cancel(task);

// Wait for a thread to finish
yield* join(task);

yield a(); // run a without waiting for a
yield* waitFor(0.5); // wait 0.5s
yield* b(1); // run b

<Circle width={200} height={200} fill={'#e13238'} stroke={'#fff'} lineWidth={4}
  startAngle={0} endAngle={270} closed={false} />

<Rect width={300} height={200} fill={'#68ABDF'} radius={10} smoothCorners cornerSharpness={0.6} />

<Line points={[[0,0],[100,100],[200,50]]} stroke={'#fff'} lineWidth={4}
  lineDash={[20,10]} lineCap={'round'} lineJoin={'round'} startArrow endArrow arrowSize={12} />

<Polygon sides={6} size={200} fill={'#99C47A'} />

import {Grid} from '@motion-canvas/2d';

<Grid width={'100%'} height={'100%'} stroke={'#333'} lineWidth={1} spacing={80} start={0} end={1} />

import {Path} from '@motion-canvas/2d';

<Path data={'M 0 -100 L 29 -40 L 95 -31 Z'} stroke={'#e6a700'} lineWidth={3} />

import {blur, brightness, grayscale, sepia, contrast, saturate, hue, invert} from '@motion-canvas/2d';

<Rect filters={[blur(5), brightness(1.5)]} />
yield* rect().filters([blur(0), grayscale(1)], 1); // Animated

import {Gradient} from '@motion-canvas/2d';

const grad = new Gradient({
  type: 'linear',
  from: [-100, 0], to: [100, 0],
  stops: [{offset: 0, color: '#e13238'}, {offset: 1, color: '#68ABDF'}],
});
<Rect fill={grad} />

<Txt text={'Hello World'} fontSize={64} fontFamily={'Inter'} fill={'#ffffff'} wrap={true} />

export class Switch extends Node {
  @initial(false) @signal()
  public declare readonly initialState: SimpleSignal<boolean, this>;

  public constructor(props?: SwitchProps) {
    super({...props});
  }

  public *toggle(duration: number) { /* animation logic */ }
}

import {Node, NodeProps, initial, signal} from '@motion-canvas/2d';

import {slideTransition, fadeTransition, Direction} from '@motion-canvas/core';
yield* slideTransition(Direction.Left);

import {useTransition} from '@motion-canvas/core';
const transition = useTransition(ctx => { /* current */ }, ctx => { /* previous */ });
yield* transition(1);