| 1 | |
| 2 | import type { Card } from './PlayingCard'; |
| 3 | import type { CSSProperties } from 'react'; |
| 4 | import { useCallback, useLayoutEffect, useMemo, useRef, useState } from 'react'; |
| 5 | import { PlayingCard } from './PlayingCard'; |
| 6 | |
| 7 | export interface HandProps { |
| 8 | cards: Card[]; |
| 9 | selected: Set<number>; |
| 10 | onChange?: (next: Set<number>) => void; |
| 11 | |
| 12 | layout?: 'fan' | 'stacks'; |
| 13 | |
| 14 | groupKey?: (c: Card) => number | string; |
| 15 | isWild?: (c: Card) => boolean; |
| 16 | disabled?: boolean; |
| 17 | |
| 18 | single?: boolean; |
| 19 | |
| 20 | dealKey?: string | number; |
| 21 | } |
| 22 | |
| 23 | |
| 24 | function useWidth<T extends HTMLElement>() { |
| 25 | const ref = useRef<T>(null); |
| 26 | const [width, setWidth] = useState(0); |
| 27 | useLayoutEffect(() => { |
| 28 | const el = ref.current; |
| 29 | if (!el) return; |
| 30 | const ro = new ResizeObserver(([e]) => setWidth(e.contentRect.width)); |
| 31 | ro.observe(el); |
| 32 | setWidth(el.getBoundingClientRect().width); |
| 33 | return () => ro.disconnect(); |
| 34 | }, []); |
| 35 | return [ref, width] as const; |
| 36 | } |
| 37 | |
| 38 | |
| 39 | function useCardWidth(el: HTMLElement | null, dep: number): number { |
| 40 | return useMemo(() => { |
| 41 | if (!el) return 64; |
| 42 | const probe = document.createElement('div'); |
| 43 | probe.style.width = 'var(--cw)'; |
| 44 | probe.style.position = 'absolute'; |
| 45 | probe.style.visibility = 'hidden'; |
| 46 | el.appendChild(probe); |
| 47 | const w = probe.getBoundingClientRect().width; |
| 48 | probe.remove(); |
| 49 | return w || 64; |
| 50 | |
| 51 | }, [el, dep]); |
| 52 | } |
| 53 | |
| 54 | export function Hand({ |
| 55 | cards, |
| 56 | selected, |
| 57 | onChange, |
| 58 | layout = 'fan', |
| 59 | groupKey, |
| 60 | isWild, |
| 61 | disabled, |
| 62 | single, |
| 63 | dealKey, |
| 64 | }: HandProps) { |
| 65 | const [ref, width] = useWidth<HTMLDivElement>(); |
| 66 | const cw = useCardWidth(ref.current, width); |
| 67 | const ch = cw * 1.4; |
| 68 | const drag = useRef<{ mode: boolean; seen: Set<number> } | null>(null); |
| 69 | |
| 70 | const positions = useMemo(() => { |
| 71 | const pos = new Map<number, { x: number; y: number; z: number }>(); |
| 72 | if (layout === 'stacks' && groupKey) { |
| 73 | const cols: Card[][] = []; |
| 74 | const index = new Map<number | string, number>(); |
| 75 | for (const c of cards) { |
| 76 | const k = groupKey(c); |
| 77 | if (!index.has(k)) { |
| 78 | index.set(k, cols.length); |
| 79 | cols.push([]); |
| 80 | } |
| 81 | cols[index.get(k)!].push(c); |
| 82 | } |
| 83 | const n = cols.length; |
| 84 | const maxStep = cw * 0.92; |
| 85 | const step = n > 1 ? Math.min(maxStep, (width - cw) / (n - 1)) : 0; |
| 86 | const total = step * (n - 1) + cw; |
| 87 | const x0 = Math.max(0, (width - total) / 2); |
| 88 | const vstep = ch * 0.24; |
| 89 | const tallest = Math.max(1, ...cols.map((c) => c.length)); |
| 90 | cols.forEach((col, ci) => { |
| 91 | col.forEach((c, j) => { |
| 92 | pos.set(c.id, { |
| 93 | x: x0 + ci * step, |
| 94 | y: (tallest - col.length + j) * vstep, |
| 95 | z: ci * 20 + j, |
| 96 | }); |
| 97 | }); |
| 98 | }); |
| 99 | return { pos, height: ch + (tallest - 1) * vstep }; |
| 100 | } |
| 101 | const n = cards.length; |
| 102 | const maxStep = cw * 0.6; |
| 103 | const minStep = cw * 0.22; |
| 104 | const step = n > 1 ? Math.max(minStep, Math.min(maxStep, (width - cw) / (n - 1))) : 0; |
| 105 | const total = step * Math.max(0, n - 1) + cw; |
| 106 | const x0 = Math.max(0, (width - total) / 2); |
| 107 | cards.forEach((c, i) => pos.set(c.id, { x: x0 + i * step, y: 0, z: i })); |
| 108 | return { pos, height: ch }; |
| 109 | }, [cards, layout, groupKey, width, cw, ch]); |
| 110 | |
| 111 | const setSel = useCallback( |
| 112 | (id: number, on: boolean) => { |
| 113 | if (!onChange) return; |
| 114 | if (single) { |
| 115 | onChange(on ? new Set([id]) : new Set()); |
| 116 | return; |
| 117 | } |
| 118 | const next = new Set(selected); |
| 119 | if (on) next.add(id); |
| 120 | else next.delete(id); |
| 121 | onChange(next); |
| 122 | return next; |
| 123 | }, |
| 124 | [onChange, selected, single], |
| 125 | ); |
| 126 | |
| 127 | const idAt = (x: number, y: number): number | null => { |
| 128 | const el = document.elementFromPoint(x, y)?.closest<HTMLElement>('[data-cid]'); |
| 129 | return el ? Number(el.dataset.cid) : null; |
| 130 | }; |
| 131 | |
| 132 | const onPointerDown = (e: React.PointerEvent) => { |
| 133 | if (disabled || !onChange) return; |
| 134 | const id = idAt(e.clientX, e.clientY); |
| 135 | if (id === null) return; |
| 136 | const mode = !selected.has(id); |
| 137 | drag.current = { mode, seen: new Set([id]) }; |
| 138 | setSel(id, mode); |
| 139 | }; |
| 140 | |
| 141 | const onPointerMove = (e: React.PointerEvent) => { |
| 142 | const d = drag.current; |
| 143 | if (!d || single) return; |
| 144 | const id = idAt(e.clientX, e.clientY); |
| 145 | if (id === null || d.seen.has(id)) return; |
| 146 | d.seen.add(id); |
| 147 | |
| 148 | const next = new Set(selected); |
| 149 | for (const sid of d.seen) { |
| 150 | if (d.mode) next.add(sid); |
| 151 | else next.delete(sid); |
| 152 | } |
| 153 | onChange?.(next); |
| 154 | }; |
| 155 | |
| 156 | const endDrag = () => { |
| 157 | drag.current = null; |
| 158 | }; |
| 159 | |
| 160 | const lift = ch * 0.16; |
| 161 | return ( |
| 162 | <div |
| 163 | ref={ref} |
| 164 | className={`hand ${disabled ? 'is-disabled' : ''}`} |
| 165 | style={{ height: positions.height + lift }} |
| 166 | onPointerDown={onPointerDown} |
| 167 | onPointerMove={onPointerMove} |
| 168 | onPointerUp={endDrag} |
| 169 | onPointerCancel={endDrag} |
| 170 | onPointerLeave={endDrag} |
| 171 | > |
| 172 | {cards.map((c, i) => { |
| 173 | const p = positions.pos.get(c.id); |
| 174 | if (!p) return null; |
| 175 | const sel = selected.has(c.id); |
| 176 | const style: CSSProperties = { |
| 177 | translate: `${p.x}px ${p.y + lift - (sel ? lift : 0)}px`, |
| 178 | zIndex: p.z, |
| 179 | animationDelay: `${Math.min(i * 18, 600)}ms`, |
| 180 | }; |
| 181 | return ( |
| 182 | <PlayingCard |
| 183 | key={`${dealKey ?? ''}-${c.id}`} |
| 184 | data-cid={c.id} |
| 185 | card={c} |
| 186 | className="hand__card" |
| 187 | selected={sel} |
| 188 | wild={isWild?.(c)} |
| 189 | style={style} |
| 190 | /> |
| 191 | ); |
| 192 | })} |
| 193 | </div> |
| 194 | ); |
| 195 | } |
| 196 | |
| 197 | |
| 198 | export function CardRow({ |
| 199 | cards, |
| 200 | w = 'var(--cw-sm)', |
| 201 | overlap = 0.42, |
| 202 | isWild, |
| 203 | highlight, |
| 204 | from, |
| 205 | className = '', |
| 206 | }: { |
| 207 | cards: Card[]; |
| 208 | w?: string; |
| 209 | overlap?: number; |
| 210 | isWild?: (c: Card) => boolean; |
| 211 | highlight?: Set<number>; |
| 212 | /** 入场动画方向 */ |
| 213 | from?: 'left' | 'right' | 'top' | 'bottom'; |
| 214 | className?: string; |
| 215 | }) { |
| 216 | return ( |
| 217 | <div |
| 218 | className={`cardrow ${from ? `from-${from}` : ''} ${className}`} |
| 219 | style={{ '--w': w, '--ov': overlap } as CSSProperties} |
| 220 | > |
| 221 | {cards.map((c, i) => ( |
| 222 | <PlayingCard |
| 223 | key={c.id} |
| 224 | card={c} |
| 225 | w={w} |
| 226 | wild={isWild?.(c)} |
| 227 | highlight={highlight?.has(c.id)} |
| 228 | style={{ animationDelay: `${i * 25}ms` }} |
| 229 | /> |
| 230 | ))} |
| 231 | </div> |
| 232 | ); |
| 233 | } |
shoal