Spin With Rotation

Part of the Nodes and Scenes section of Coddy's Godot journey. Lesson 11 of 27.

A node turns around its own position. rotation is how far it has turned, in radians. A whole turn is 2 * PI radians, about 6.28. rotation_degrees is the same angle in degrees, where a whole turn is 360. Change one and the other follows.

rotation_degrees = 90   # a quarter turn
rotation = PI / 2      # the same quarter turn

A growing angle turns a node clockwise. To spin, add to the angle on every frame, times delta:

func _process(delta):
	rotation_degrees += 90 * delta

That spins a quarter turn each second. -= spins the other way.

Challenge

Easy

Make the robot spin clockwise, half a turn every second, in the place where it stands.

Try it yourself

extends Node2D

func _process(delta):
	pass

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Nodes and Scenes

1Your First Godot Game

What Is Godot?Ready Runs Once Print in Godot The Scene Tree Set a Position Move a Node Once

4Finding Nodes

The Dollar Sign Node Paths Onready Change a Color Hide and Show

2Every Frame

Process Runs Every Frame Delta Pixels per Second Move DiagonallySpin With RotationGrow With Scale

5Project: Screensaver

Screensaver: Drift Screensaver: Side Walls

Screensaver: Top and Bottom

Screensaver: New Colors

3Values You Can Tune

Variables on a Node Constants Export Variables Vector2 Math Wrap Around the Screen Your Own Functions

Practice on your own: Godot playground