重構 77~147 行

Refactor.swift

var previous: LineChartDataSet?
let lineSets = [PE14, PE16, PE18, PE20, PE22, PE24]
let colors = [
    UIColor(displayP3Red: 18/255, green: 31/255, blue: 29/255, alpha: 0.5),
    UIColor(displayP3Red: 41/255, green: 196/255, blue: 180/255, alpha: 1),
    UIColor(displayP3Red: 162/255, green: 212/255, blue: 209/255, alpha: 1),
    UIColor(displayP3Red: 231/255, green: 197/255, blue: 105/255, alpha: 1),
    UIColor(displayP3Red: 242/255, green: 162/255, blue: 110/255, alpha: 1),
    UIColor(displayP3Red: 241/255, green: 129/255, blue: 97/255, alpha: 1)
]

zip(lineSets, colors).forEach { lineSet, color in
    lineSet.mode = .linear
    lineSet.drawCirclesEnabled = false
    lineSet.lineWidth = 3
    lineSet.setColor(color)
    lineSet.fill = Fill(color: color)

    // fill
    if let previous = previous {
        lineSet.fillAlpha = 1
        lineSet.drawFilledEnabled = true
        lineSet.fillFormatter = areaGraph(fillLineDataSet: previous)
    }

    previous = lineSet
}