Here’s a very simple flight controller for Godot 4 that allows you to make airplane/spaceplane type games without a gimbal lock.
The code is CC0 (public domain) - use at own risk, etc. Copyright 2023 Miguel B, no rights reserved.
https://www.longplay.games/FlightController.zip
Here’s the code of the actual controller itself (the important part)
extends CharacterBody3D
# By Miguel B, Copyright 2023 No Rights reserved, CC0
@export var maxSpeed :float = 10.0
@export var turnRate :float = 0.1
var Speed = 0.0
# Get the project gravity when ready
@onready var Gravity = ProjectSettings.get_setting("physics/3d/default_gravity")
func _physics_process(delta):
_rotate()
if Input.is_action_just_pressed("Accelerate") and (Speed <= maxSpeed):
Speed += 1.0
if Input.is_action_just_pressed("Decelerate"):
if (Speed >= 1.0):
Speed -= 1.0
else:
Speed = 0.0
if (Speed > 0.0):
global_translate(transform.basis.z)
move_and_slide()
pass
func _rotate():
var yaw = Input.get_axis("YawRight", "YawLeft") # Y Axis
var roll = Input.get_axis("RollLeft", "RollRight") # Z Axis
var pitch = Input.get_axis("PitchUp", "PitchDown") # X Axis
var direction = Vector3(pitch, yaw, roll) * turnRate
if direction:
# This only runs if there's any form of input, clearing out deadzone noise
# print("Apply direction", direction)
var a = Quaternion(transform.basis.from_euler(rotation))
var b = Quaternion(transform.basis.from_euler(direction))
transform.basis = Basis(a * b)
