Added a game timer and put it on the game manager to handle day end events

scripts/game_manager.gd

@@ -1,9 +1,21 @@
 extends Node
 
+export var time_per_day : float = 600.0
+
 onready var player = get_tree().get_nodes_in_group("player")[0]
+onready var day_timer = $"%day_timer"
+onready var day_timer_text = $"%day_timer_text"
 
 func _ready():
 	player.connect("starved_to_death", self, "_on_player_starved_to_death")
+	day_timer.wait_time = time_per_day
+	day_timer.start()
+
+func _process(delta):
+	var time_left : int = day_timer.time_left
+	var minutes : int = time_left / 60
+	var seconds : int = time_left % 60
+	day_timer_text.text = "Time Left: %0*d:%0*d" % [2, minutes, 2, seconds]
 
 func _on_player_starved_to_death():
 	var node = Dialogic.start("starve")
@@ -13,3 +25,16 @@ func _on_player_starved_to_death():
 	yield(node, "timeline_end")
 	get_tree().paused = false
 	get_tree().quit() # go back to main menu when such a thing exists
+
+func _on_day_timer_timeout():
+	player.health -= 1
+	if player.health <= 0:
+		_on_player_starved_to_death()
+		return
+	var node = Dialogic.start("day_end")
+	node.pause_mode = PAUSE_MODE_PROCESS
+	add_child(node)
+	get_tree().paused = true
+	yield(node, "timeline_end")
+	get_tree().paused = false
+