93 lines
3.3 KiB
TypeScript
93 lines
3.3 KiB
TypeScript
import * as React from 'react';
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import { useEffect, useRef, useState } from 'react';
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import { Box } from '@anthropic/ink';
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import { getInitialSettings } from '../../utils/settings/settings.js';
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import { Clawd, type ClawdPose } from './Clawd.js';
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type Frame = { pose: ClawdPose; offset: number };
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/** Hold a pose for n frames (60ms each). */
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function hold(pose: ClawdPose, offset: number, frames: number): Frame[] {
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return Array.from({ length: frames }, () => ({ pose, offset }));
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}
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// Offset semantics: marginTop in a fixed-height-3 container. 0 = normal,
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// 1 = crouched. Container height stays 3 so the layout never shifts; during
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// a crouch (offset=1) Clawd's feet row dips below the container and gets
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// clipped — reads as "ducking below the frame" before springing back up.
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// Click animation: crouch, then spring up with both arms raised. Twice.
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const JUMP_WAVE: readonly Frame[] = [
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...hold('default', 1, 2), // crouch
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...hold('arms-up', 0, 3), // spring!
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...hold('default', 0, 1),
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...hold('default', 1, 2), // crouch again
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...hold('arms-up', 0, 3), // spring!
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...hold('default', 0, 1),
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];
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// Click animation: glance right, then left, then back.
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const LOOK_AROUND: readonly Frame[] = [
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...hold('look-right', 0, 5),
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...hold('look-left', 0, 5),
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...hold('default', 0, 1),
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];
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const CLICK_ANIMATIONS: readonly (readonly Frame[])[] = [JUMP_WAVE, LOOK_AROUND];
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const IDLE: Frame = { pose: 'default', offset: 0 };
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const FRAME_MS = 60;
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const incrementFrame = (i: number) => i + 1;
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const CLAWD_HEIGHT = 3;
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/**
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* Clawd with click-triggered animations (crouch-jump with arms up, or
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* look-around). Container height is fixed at CLAWD_HEIGHT — same footprint
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* as a bare `<Clawd />` — so the surrounding layout never shifts. During a
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* crouch only the feet row clips (see comment above). Click only fires when
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* mouse tracking is enabled (i.e. inside `<AlternateScreen>` / fullscreen);
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* elsewhere this renders and behaves identically to plain `<Clawd />`.
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*/
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export function AnimatedClawd(): React.ReactNode {
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const { pose, bounceOffset, onClick } = useClawdAnimation();
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return (
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<Box height={CLAWD_HEIGHT} flexDirection="column" onClick={onClick}>
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<Box marginTop={bounceOffset} flexShrink={0}>
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<Clawd pose={pose} />
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</Box>
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</Box>
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);
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}
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function useClawdAnimation(): {
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pose: ClawdPose;
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bounceOffset: number;
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onClick: () => void;
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} {
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// Read once at mount — no useSettings() subscription, since that would
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// re-render on any settings change.
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const [reducedMotion] = useState(() => getInitialSettings().prefersReducedMotion ?? false);
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const [frameIndex, setFrameIndex] = useState(-1);
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const sequenceRef = useRef<readonly Frame[]>(JUMP_WAVE);
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const onClick = () => {
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if (reducedMotion || frameIndex !== -1) return;
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sequenceRef.current = CLICK_ANIMATIONS[Math.floor(Math.random() * CLICK_ANIMATIONS.length)]!;
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setFrameIndex(0);
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};
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useEffect(() => {
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if (frameIndex === -1) return;
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if (frameIndex >= sequenceRef.current.length) {
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setFrameIndex(-1);
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return;
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}
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const timer = setTimeout(setFrameIndex, FRAME_MS, incrementFrame);
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return () => clearTimeout(timer);
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}, [frameIndex]);
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const seq = sequenceRef.current;
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const current = frameIndex >= 0 && frameIndex < seq.length ? seq[frameIndex]! : IDLE;
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return { pose: current.pose, bounceOffset: current.offset, onClick };
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}
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