up3

server/world/sleep.go

@@ -0,0 +1,64 @@
+package world
+
+import (
+	"github.com/df-mc/dragonfly/server/block/cube"
+	"github.com/df-mc/dragonfly/server/player/chat"
+	"github.com/google/uuid"
+)
+
+// Sleeper represents an entity that can sleep.
+type Sleeper interface {
+	Entity
+
+	Name() string
+	UUID() uuid.UUID
+
+	Messaget(t chat.Translation, a ...any)
+	SendSleepingIndicator(sleeping, max int)
+
+	Sleep(pos cube.Pos)
+	Sleeping() (cube.Pos, bool)
+	Wake()
+}
+
+// Time constants for sleep usage.
+const (
+	TimeSleep         = 12542
+	TimeWake          = 23459
+	TimeSleepWithRain = 12010
+	TimeWakeWithRain  = 23991
+	TimeFull          = 24000
+)
+
+// tryAdvanceDay attempts to advance the day of the world, by first ensuring that all sleepers are sleeping, and then
+// updating the time of day.
+func (ticker) tryAdvanceDay(tx *Tx, timeCycle bool) {
+	sleepers := tx.Sleepers()
+	time := tx.w.Time() % TimeFull
+
+	for s := range sleepers {
+		if !tx.Thundering() {
+			if !tx.Raining() && (time <= TimeSleep || time >= TimeWake) {
+				return
+			}
+			if time <= TimeSleepWithRain || time >= TimeWakeWithRain {
+				return
+			}
+		}
+
+		if _, ok := s.Sleeping(); !ok {
+			// We can't advance the time - not everyone is sleeping.
+			return
+		}
+	}
+
+	for s := range sleepers {
+		s.Wake()
+	}
+
+	totalTime := tx.w.Time()
+	if timeCycle {
+		tx.w.SetTime(totalTime + TimeFull - time)
+	}
+	tx.w.StopRaining()
+}