navigation agent added for person

now it goes to new object when it is placed . Also new obj model for person

Scripts/person.gd

@@ -0,0 +1,18 @@
+extends CharacterBody3D
+
+var nav_agent: NavigationAgent3D
+func _ready() -> void:
+	nav_agent = $NavigationAgent3D
+	Global.object_placed.connect(_on_object_placed)
+	
+	#nav_agent.target_position = Vector3(-15.955,3.486,-58.942)
+
+func _physics_process(delta: float) -> void:
+	var new_velocity = global_position.direction_to(nav_agent.get_next_path_position()) * 5.0
+	velocity = new_velocity
+	move_and_slide()
+
+
+
+func _on_object_placed():
+	nav_agent.target_position = Vector3(-14.305,3.486,-59.836)