Added Dart Physics

Scripts/mesh_instance_3d.gd

@@ -0,0 +1,16 @@
+extends MeshInstance3D
+
+@onready var camera = get_node("Camera3D")
+@onready var area = get_node("../../../Dart")
+
+func _input(event):
+	if Input.is_action_just_pressed("leftClick"):
+		print(camera.ray_cast().position)
+	
+	if camera.ray_cast() != null and Input.is_action_pressed("midleclic"):
+		var mousepos = get_viewport().get_mouse_position()
+		var origin = camera.projectray_origin(mousepos)
+		var end = camera.project_ray_normal(mousepos)
+		var depth = origin.distence_to(area.global_position)
+		var final_position = origin + end * depth
+		area.global_position=final_position