create weather controller and daynight controller

core/daynight/day_night_controller.gd

@@ -0,0 +1,44 @@
+@tool
+class_name DayNightController
+extends Node
+
+#Time duration in seconds for a day
+@export var day_duration: float = 120.0
+
+#starting time
+@export_range(0.0, 1.0) var start_time: float = 0.0
+
+#Multiply for debug
+@export var time_scale: float = 1.0
+
+@export var paused: bool = false
+
+signal time_changed(time: float)
+
+var current_time: float = 0.0
+
+func _ready() -> void:
+	current_time = start_time
+	update_time(current_time)
+
+func _process(delta: float) -> void:
+	if paused or day_duration <= 0.0:
+		return
+
+	var increment: float = (delta * time_scale) / day_duration
+	current_time = wrapf(current_time + increment, 0.0, 1.0)
+
+	update_time(current_time)
+
+func get_time_string() -> String:
+	var total_minutes: int = int(current_time * 1440.0)  # 1440 = 24*60
+	var hours: int   = total_minutes / 60
+	var minutes: int = total_minutes % 60
+	return "%02d:%02d" % [hours, minutes]
+
+func set_time(t: float) -> void:
+	current_time = wrapf(t, 0.0, 1.0)
+	update_time(current_time)
+
+func update_time(currtime: float) -> void:
+	emit_signal("time_changed", currtime)