Initial commit for testing/fixing a deprecated godot-colyseus addon

scripts/vector_line_3d.gd

@@ -0,0 +1,22 @@
+extends MeshInstance3D
+
+@export var color: Color = Color(0.1, 0.8, 1.0, 0.9)
+
+var _mesh: ImmediateMesh
+var _material: StandardMaterial3D
+
+func _ready() -> void:
+	_mesh = ImmediateMesh.new()
+	mesh = _mesh
+	_material = StandardMaterial3D.new()
+	_material.shading_mode = BaseMaterial3D.SHADING_MODE_UNSHADED
+	_material.albedo_color = color
+
+func set_vector(end_point: Vector3) -> void:
+	if _mesh == null:
+		return
+	_mesh.clear_surfaces()
+	_mesh.surface_begin(Mesh.PRIMITIVE_LINES, _material)
+	_mesh.surface_add_vertex(Vector3.ZERO)
+	_mesh.surface_add_vertex(end_point)
+	_mesh.surface_end()