使用设计模式优化发卡机

internal/routes/play/card_device/in_gpio.go

@@ -0,0 +1,38 @@
+package card_device
+
+import (
+	"fmt"
+	"github.com/warthog618/go-gpiocdev/device/rpi"
+)
+
+type inGpioLine int
+
+const (
+	OutOKLine inGpioLine = rpi.GPIO6
+	LowerLine inGpioLine = rpi.GPIO13
+	ErrorLine inGpioLine = rpi.GPIO19
+	EmptyLine inGpioLine = rpi.GPIO26
+)
+
+func (g inGpioLine) String() string {
+	switch g {
+	case OutOKLine:
+		return "OutOKLine"
+	case LowerLine:
+		return "LowerLine"
+	case ErrorLine:
+		return "ErrorLine"
+	case EmptyLine:
+		return "EmptyLine"
+	default:
+		return fmt.Sprint(int(g))
+	}
+}
+
+func allInGpio() []inGpioLine {
+	return []inGpioLine{OutOKLine, LowerLine, ErrorLine, EmptyLine}
+}
+
+func allInGpioInt() []int {
+	return []int{int(OutOKLine), int(LowerLine), int(ErrorLine), int(EmptyLine)}
+}