This commit is contained in:
2024-05-01 19:13:01 +08:00
parent cf008327aa
commit 80a32d9b1b
150 changed files with 8561 additions and 5045 deletions

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@@ -4,45 +4,39 @@ const { ccclass, property } = _decorator
@ccclass('BitUtil')
export default class BitUtil {
//index是二进制从右到左
// index是二进制从右到左
public static isBitSet(value: number, index: number): boolean {
let str: string = value.toString(2)
return parseInt(str[str.length - 1 - index]) == 1
const str: string = value.toString(2)
return Number.parseInt(str[str.length - 1 - index]) === 1
}
//从右到左计算
// 从右到左计算
public static setBitValue(value: number, index: number): number {
let newValue: number = value
let str: string = value.toString(2)
const str: string = value.toString(2)
let newStr: string = ''
let maxIndex = Math.max(str.length - 1, index)
const maxIndex = Math.max(str.length - 1, index)
for (let i = 0; i <= maxIndex; i++) {
if (index == i) {
newStr = '1' + newStr
if (index === i) {
newStr = `1${newStr}`
} else {
if (str[i] == undefined) {
newStr = '0' + newStr
} else {
newStr = str[i] + newStr
}
if (str[i] === undefined) newStr = `0${newStr}`
else newStr = str[i] + newStr
}
}
newValue = parseInt(newStr, 2)
newValue = Number.parseInt(newStr, 2)
return newValue
}
public static clearBitValue(value: number, index: number) {
let newValue: number = value
let str: string = value.toString(2)
const str: string = value.toString(2)
let newStr: string = ''
for (let i = str.length - 1; i >= 0; i--) {
if (index == str.length - 1 - i) {
newStr = '0' + newStr
} else {
newStr = str[i] + newStr
}
if (index === str.length - 1 - i) newStr = `0${newStr}`
else newStr = str[i] + newStr
}
newValue = parseInt(newStr, 2)
newValue = Number.parseInt(newStr, 2)
return newValue
}
}