//
//  Float+Extension.swift
//  HPlusFit
//
//  Created by lemo. on 2019/10/15.
//  Copyright © 2019 lemo. All rights reserved.
//

import Foundation

extension Float {
    var strideBegin: Int {
        let mid = Int(self)/2
        let begin = (mid/self.strideStep)*self.strideStep
        return begin
    }
    
    var strideEnd: Int {
        var end: Int = 10
        for i in 1...10 {
            let result = powf(10, Float(i))
            if result > self {
                end = Int(result)
                break
            }
        }
        return end
    }
    
    var strideStep: Int {
        var step: Int = 1
        let end = self.strideEnd
        if end > 100 {
            step = end/100
        }else {
            step = end/10
        }
        
        return step
    }
    
    var maxAxis: Int {
        var result: Int = 0
        let begin = self.strideBegin
        let end = self.strideEnd
        let step = self.strideStep
        for i in stride(from: begin, to: end, by: step) {
            if Float(i * 2) >= self {
                result = i * 2
                break
            }
        }
        return result
    }
}