obstacle collission added, but not working yet

util/generics.go

@@ -1,5 +1,9 @@
 package util
 
+import (
+	. "openquell/config"
+)
+
 // find an item in a list, generic variant
 func Contains[E comparable](s []E, v E) bool {
 	for _, vs := range s {
@@ -19,3 +23,21 @@ func Exists[K comparable, V any](m map[K]V, v K) bool {
 
 	return false
 }
+
+func DirectionStr(dir int) string {
+	str := "Stop"
+	switch dir {
+	case East:
+		str = "East"
+	case West:
+		str = "West"
+	case South:
+		str = "South"
+	case North:
+		str = "North"
+	case All:
+		str = "All"
+	}
+
+	return str
+}