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| 1 | +import React, { |
| 2 | + forwardRef, |
| 3 | + useRef, |
| 4 | + useState, |
| 5 | + useEffect, |
| 6 | + useImperativeHandle, |
| 7 | + memo, |
| 8 | + useMemo, |
| 9 | +} from 'react' |
| 10 | +import Die, { DieRef, DieProps } from './Die' |
| 11 | +import './styles.scss' |
| 12 | + |
| 13 | +export type DieContainerRef = { |
| 14 | + rollAll: (values?: number[]) => void |
| 15 | +} |
| 16 | + |
| 17 | +export interface DiceContainerProps extends Omit<DieProps, 'onRollDone'> { |
| 18 | + numDice: number |
| 19 | + totalCb: (newTotalValue: number, newDiceValues: number[]) => void |
| 20 | +} |
| 21 | + |
| 22 | +const DiceContainer = forwardRef<DieContainerRef, DiceContainerProps>( |
| 23 | + ({ numDice, totalCb, ...rest }, ref): JSX.Element => { |
| 24 | + const diceRefs = useRef<Array<DieRef | null>>([]) |
| 25 | + const [totalValue, setTotalValue] = useState(numDice * 6) |
| 26 | + const [diceValues, setDiceValues] = useState<number[]>([]) |
| 27 | + const [rollCount, setRollCount] = useState(0) |
| 28 | + |
| 29 | + useImperativeHandle(ref, () => ({ |
| 30 | + rollAll, |
| 31 | + })) |
| 32 | + |
| 33 | + const rollAll = (values = []) => { |
| 34 | + setRollCount(diceRefs.current.length) |
| 35 | + let index = 0 |
| 36 | + for (let die of diceRefs.current) { |
| 37 | + if (die !== null) { |
| 38 | + die.rollDie(values[index]) |
| 39 | + index += 1 |
| 40 | + } |
| 41 | + } |
| 42 | + } |
| 43 | + |
| 44 | + const onRollDone = () => { |
| 45 | + setRollCount((count) => count - 1) |
| 46 | + } |
| 47 | + |
| 48 | + useEffect(() => { |
| 49 | + if (rollCount <= 0) { |
| 50 | + setTimeout(getRollResults, 100) |
| 51 | + } |
| 52 | + }, [rollCount]) |
| 53 | + |
| 54 | + const getRollResults = () => { |
| 55 | + let newTotalValue = 0 |
| 56 | + let newDiceValues: number[] = [] |
| 57 | + for (let die of diceRefs.current) { |
| 58 | + if (die !== null) { |
| 59 | + const value = die.getValue() |
| 60 | + newDiceValues.push(value) |
| 61 | + newTotalValue += value |
| 62 | + } |
| 63 | + } |
| 64 | + setTotalValue(newTotalValue) |
| 65 | + setDiceValues(newDiceValues) |
| 66 | + totalCb(newTotalValue, newDiceValues) |
| 67 | + } |
| 68 | + |
| 69 | + useEffect(() => { |
| 70 | + getRollResults() |
| 71 | + }, [numDice]) |
| 72 | + |
| 73 | + const getDice = useMemo(() => { |
| 74 | + let dice: JSX.Element[] = [] |
| 75 | + for (let i = 0; i < numDice; i++) { |
| 76 | + dice.push( |
| 77 | + <Die |
| 78 | + {...rest} |
| 79 | + key={i} |
| 80 | + onRollDone={onRollDone} |
| 81 | + ref={(die) => (diceRefs.current[i] = die)} |
| 82 | + /> |
| 83 | + ) |
| 84 | + } |
| 85 | + return dice |
| 86 | + }, [rest, numDice, onRollDone]) |
| 87 | + |
| 88 | + return <div className='dice'>{getDice}</div> |
| 89 | + } |
| 90 | +) |
| 91 | + |
| 92 | +export default memo(DiceContainer) |
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