refactored gametime and utils folder which decouples entrance and sign from channel servers

utils/gametime/gametime.go

@@ -0,0 +1,32 @@
+package gametime
+
+import (
+	"time"
+)
+
+func TimeAdjusted() time.Time {
+	baseTime := time.Now().In(time.FixedZone("UTC+9", 9*60*60))
+	return time.Date(baseTime.Year(), baseTime.Month(), baseTime.Day(), baseTime.Hour(), baseTime.Minute(), baseTime.Second(), baseTime.Nanosecond(), baseTime.Location())
+}
+
+func TimeMidnight() time.Time {
+	baseTime := time.Now().In(time.FixedZone("UTC+9", 9*60*60))
+	return time.Date(baseTime.Year(), baseTime.Month(), baseTime.Day(), 0, 0, 0, 0, baseTime.Location())
+}
+
+func TimeWeekStart() time.Time {
+	midnight := TimeMidnight()
+	offset := int(midnight.Weekday()) - int(time.Monday)
+	if offset < 0 {
+		offset += 7
+	}
+	return midnight.Add(-time.Duration(offset) * 24 * time.Hour)
+}
+
+func TimeWeekNext() time.Time {
+	return TimeWeekStart().Add(time.Hour * 24 * 7)
+}
+
+func TimeGameAbsolute() uint32 {
+	return uint32((TimeAdjusted().Unix() - 2160) % 5760)
+}