weilaibike-api/app/Handlers/BatteryHandler.php

<?php
/**
 * Created by PhpStorm.
 * User: Mead
 * Date: 2019/9/9
 * Time: 2:49 PM
 */

namespace App\Handlers;

class BatteryHandler
{
    const max_ride_v = 10;
    const fangans = [
        [
            'min' => 0,
            'max' => 43,
            'electric' => 0,
            'mileage' => 0
        ],
        [
            'min' => 43,
            'max' => 44,
            'electric' => 10,
            'mileage' => 5
        ],
        [
            'min' => 44,
            'max' => 46,
            'electric' => 20,
            'mileage' => 10
        ],
        [
            'min' => 46,
            'max' => 47,
            'electric' => 30,
            'mileage' => 15
        ],
        [
            'min' => 47,
            'max' => 48,
            'electric' => 40,
            'mileage' => 20
        ],
        [
            'min' => 48,
            'max' => 49,
            'electric' => 50,
            'mileage' => 25
        ],
        [
            'min' => 49,
            'max' => 50,
            'electric' => 60,
            'mileage' => 30
        ],
        [
            'min' => 50,
            'max' => 51,
            'electric' => 70,
            'mileage' => 35
        ],
        [
            'min' => 51,
            'max' => 52,
            'electric' => 80,
            'mileage' => 40
        ],
        [
            'min' => 52,
            'max' => 53,
            'electric' => 90,
            'mileage' => 45
        ],
        [
            'min' => 53,
            'max' => false,
            'electric' => 100,
            'mileage' => 50
        ],
    ];

    public function byVoltageGetElectric($v)
    {
        foreach (self::fangans as $fangan) {
            if ($fangan['min'] === false && $fangan['max'] > $v) {
                return $fangan['electric'];
            }
            if ($fangan['max'] === false && $v['max'] <= $v) {
                return $fangan['electric'];
            }
            if ($fangan['min'] <= $v && $fangan['max'] > $v) {
                return $fangan['electric'];
            }
        }
    }

    public function byElectricGetMileage($e)
    {
        $eles = array_column(self::fangans, 'electric');
        $mils = array_column(self::fangans, 'mileage');

        $mil = 0;
        foreach ($eles as $key => $ele) {
            if ($ele > $e) {
                $k = $key - 1;
                $m = round(($e - $eles[$k]) / 10 * 5);
                $mil = (int)$mils[$k] + $m;
                break;
            }
        }
        return $mil;
    }
}