Hexiaoyi MCP

const Big = require("big.js"); class Univ3 { static priceToTick(price) { // 计算价格的平方根 let sqrtPrice = Math.sqrt(price); // 计算tick let tick = Math.log(sqrtPrice) / Math.log(1.0001); return Math.round(tick); } static tickToPrice(tick) { // 计算价格 let price = Math.pow(1.0001, tick) ** 2; return price; } static priceToSqrtRatioX96(price) { // 使用big.js来进行高精度计算 const sqrtPrice = new Big(price).sqrt(); const twoTo96 = new Big(2).pow(96); const sqrtRatioX96 = sqrtPrice.times(twoTo96); return sqrtRatioX96.toFixed(0); // 将结果转换为整数字符串 } static getParamsByInitPrice(initPrice, tickSpacing) { const tick = Univ3.priceToTick(initPrice) //console.log("tick", tick); const fixedInitPrice = Univ3.tickToPrice(tick); const result = {}; result.initPrice = initPrice; result.fixedInitPrice = fixedInitPrice; result.start0Price = Univ3.priceToSqrtRatioX96(fixedInitPrice); result.tick0 = parseInt((tick / tickSpacing) + "") * tickSpacing; result.tick0Add = 0; const check0 = Univ3.tickToPrice(result.tick0); //console.log("check0",check0, fixedInitPrice) //这个单边流动性的，价格范围必须在设定的起始价格意外，如果正序的，其实价格为1，tickLower的就逼需要大于1 if(check0 < fixedInitPrice) { result.tick0Add = tickSpacing; //console.log("check000",Univ3.tickToPrice(result.tick0)) } result.start1Price = Univ3.priceToSqrtRatioX96(1 / fixedInitPrice); result.tick1 = parseInt((-tick / tickSpacing) + "") * tickSpacing; result.tick1Add = 0; const check1 = Univ3.tickToPrice(result.tick1); //console.log("check1",check1, 1 / fixedInitPrice) if(check1 > 1 / fixedInitPrice) { result.tick1Add = tickSpacing; //console.log("check111",Univ3.tickToPrice(result.tick1)) } return result; } } module.exports = {Univ3}