A3: fully working version

go/TrafficLights/TrafficLight.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"fmt"
-	"runtime"
 )
 
 //Definition CardinalDirection als enum
@@ -46,13 +45,22 @@ func (colour Colour) String() string {
 var northSouthChannel = make(chan string)
 var eastWestChannel = make(chan string)
 
+var northEastChannel = make(chan string)
+var southWestChannel = make(chan string)
+
 //Channel für die Achse erhalten, zu der direction gehört
 func getAxisChannel(direction CardinalDirection) chan string {
 	if direction == north || direction == south {
 		return northSouthChannel
-	} else {
-		return eastWestChannel
 	}
+	return eastWestChannel
+}
+
+func getNextChannel(direction CardinalDirection) chan string {
+	if direction == north || direction == east {
+		return northEastChannel
+	}
+	return southWestChannel
 }
 
 func main() {
@@ -70,7 +78,9 @@ func TrafficLight(direction CardinalDirection) {
 	var colour = red
 
 	if direction == east || direction == west {
-		handover("changeDirection", direction)
+		select {
+		case <-getNextChannel(direction):
+		}
 	}
 
 	for {
@@ -79,7 +89,6 @@ func TrafficLight(direction CardinalDirection) {
 		if colour == red {
 			sync("wait", direction)
 			handover("changeDirection", direction)
-			runtime.Gosched()
 		}
 		sync("changeLight"+nextColour(colour).String(), direction)
 		colour = nextColour(colour)
@@ -87,10 +96,10 @@ func TrafficLight(direction CardinalDirection) {
 }
 
 func handover(message string, direction CardinalDirection) {
-	getAxisChannel(nextDirection(direction)) <- message
+	getNextChannel(direction) <- message
 
 	select {
-	case <-getAxisChannel(direction):
+	case <-getNextChannel(direction):
 	}
 
 }