added objective, added boss

Levels/Objects/TreasureChest.gd

@@ -0,0 +1,33 @@
+extends Sprite
+
+var is_player_inside: bool = false
+var is_opened: bool = false
+var has_gem: bool = true
+
+signal gem_collected
+
+# Declare member variables here. Examples:
+# var a: int = 2
+# var b: String = "text"
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+#func _process(delta: float) -> void:
+#	pass
+
+
+func _on_Player_Detector_area_entered(area: Area2D) -> void:
+	if area.get_parent().name == 'Player':
+		if is_opened == false:
+			$chestClosed.visible = false
+			$chestOpened.visible = true
+			$Gem.visible = true
+			$Gem/AnimationPlayer.play("rise")
+			is_opened = true
+			has_gem = false
+			emit_signal("gem_collected")