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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 | /** * useViewportFly — animated viewport transitions for conference calls, * look_at commands, and indicate highlights. * * Extracted from NumberLine.tsx. Manages callFlyRef, conference-number * fly-in, lookAtFnRef assignment, and indicateFnRef assignment. */ import { useRef, useEffect, useCallback } from 'react' import type { NumberLineState } from './types' import { lerpViewport } from './viewportAnimation' import type { Viewport } from './viewportAnimation' import type { CallState } from './talkToNumber/useRealtimeVoice' export interface UseViewportFlyOptions { stateRef: React.MutableRefObject<NumberLineState> cssWidthRef: React.MutableRefObject<number> draw: () => void conferenceNumbers: number[] voiceState: CallState /** When true, indicate's auto-zoom is suppressed (game controls viewport). */ suppressIndicateZoomRef: React.MutableRefObject<boolean> } export interface UseViewportFlyReturn { /** Animate viewport to show a center point with a given range of units. */ lookAt: (center: number, range: number) => void /** Show a temporary indicator with optional auto-zoom. */ indicate: ( numbers: number[], range?: { from: number; to: number }, durationSeconds?: number, persistent?: boolean ) => void /** Ref to the current indicator state (read by draw()). */ indicatorRef: React.MutableRefObject<{ numbers: number[] range?: { from: number; to: number } startMs: number holdMs: number } | null> } export function useViewportFly({ stateRef, cssWidthRef, draw, conferenceNumbers, voiceState, suppressIndicateZoomRef, }: UseViewportFlyOptions): UseViewportFlyReturn { const callFlyRef = useRef<{ src: Viewport tgt: Viewport startMs: number raf: number } | null>(null) const indicatorRef = useRef<{ numbers: number[] range?: { from: number; to: number } startMs: number holdMs: number } | null>(null) // Internal fly helper const startFly = useCallback( (tgt: Viewport, durationMs = 800) => { const src: Viewport = { center: stateRef.current.center, pixelsPerUnit: stateRef.current.pixelsPerUnit, } const startMs = performance.now() if (callFlyRef.current) cancelAnimationFrame(callFlyRef.current.raf) const fly = (callFlyRef.current = { src, tgt, startMs, raf: 0 }) const tick = () => { const elapsed = performance.now() - fly.startMs const t = lerpViewport(fly.src, fly.tgt, elapsed, durationMs, stateRef.current) draw() if (t < 1) { fly.raf = requestAnimationFrame(tick) } else { callFlyRef.current = null } } fly.raf = requestAnimationFrame(tick) }, [stateRef, draw] ) const lookAt = useCallback( (center: number, range: number) => { const cssWidth = cssWidthRef.current if (cssWidth <= 0) return const targetPpu = cssWidth / Math.max(range, 0.01) startFly({ center, pixelsPerUnit: targetPpu }) }, [cssWidthRef, startFly] ) // Animate viewport to fit all conference call participants useEffect(() => { if (conferenceNumbers.length === 0 || voiceState !== 'active') { if (callFlyRef.current) { cancelAnimationFrame(callFlyRef.current.raf) callFlyRef.current = null } return } const cssWidth = cssWidthRef.current if (cssWidth <= 0) return const lo = Math.min(...conferenceNumbers) const hi = Math.max(...conferenceNumbers) const span = hi - lo const center = (lo + hi) / 2 let targetPpu: number if (span === 0) { targetPpu = cssWidth / 10 } else { targetPpu = (cssWidth * 0.4) / span } const currentPpu = stateRef.current.pixelsPerUnit const screenLo = (center - lo) * currentPpu const screenHi = (hi - center) * currentPpu const alreadyFits = screenLo < cssWidth * 0.4 && screenHi < cssWidth * 0.4 && Math.abs(stateRef.current.center - center) * currentPpu < cssWidth * 0.3 if (alreadyFits && conferenceNumbers.length <= 1) { draw() return } targetPpu = Math.min(targetPpu, Math.max(currentPpu, cssWidth / 10)) startFly({ center, pixelsPerUnit: targetPpu }) return () => { if (callFlyRef.current) { cancelAnimationFrame(callFlyRef.current.raf) callFlyRef.current = null } } }, [conferenceNumbers, voiceState, draw, cssWidthRef, stateRef, startFly]) const indicate = useCallback( ( numbers: number[], range?: { from: number; to: number }, durationSeconds?: number, persistent?: boolean ) => { const holdMs = persistent ? Infinity : durationSeconds != null ? Math.max(1, Math.min(30, durationSeconds)) * 1000 : 4000 // Compute bounding extent of all indicated content const allValues = [...numbers] if (range) { allValues.push(range.from, range.to) } if (allValues.length > 0) { const minVal = Math.min(...allValues) const maxVal = Math.max(...allValues) const cssWidth = cssWidthRef.current const ppu = stateRef.current.pixelsPerUnit const viewCenter = stateRef.current.center const halfView = cssWidth / (2 * ppu) const viewMin = viewCenter - halfView const viewMax = viewCenter + halfView if (!suppressIndicateZoomRef.current && (minVal < viewMin || maxVal > viewMax)) { const span = maxVal - minVal const center = (minVal + maxVal) / 2 const rangeWithMargin = Math.max(span / 0.8, 0.01) lookAt(center, rangeWithMargin) } } indicatorRef.current = { numbers, range, startMs: performance.now(), holdMs } const tick = () => { if (!indicatorRef.current) return draw() requestAnimationFrame(tick) } requestAnimationFrame(tick) }, [cssWidthRef, stateRef, draw, lookAt] ) return { lookAt, indicate, indicatorRef } } |