Movement After Rotation

Help Programming
1

Godot Version

4.3
Hello. I am really struggling to work out how to move my 2D player forward after the player has rotated. It’s Top Down 2D. Currently, after I rotate the player and move forward, the player just moves up (to the top of my screen) but I want the player to move forward relative to the direction they are facing after rotation. I am trying to keep my code simple without all the if statements. Is this possible to do in the format of code I have used?

extends CharacterBody2D
@export var vPlayerSpeed: int = 800
@export var vPlayerRotation: int = 5

func _physics_process(delta):
	
	var vDirection = Input.get_vector("player1_move_left", "player1_move_right", "player1_move_up","player1_move_down")      #("ui_left", "ui_right", "ui_up", "ui_down")
	velocity = vDirection * vPlayerSpeed 
	var vRotation = Input.get_axis("player1_rotate_CW", "player1_rotate_CCW")
	rotation_degrees -= vRotation * vPlayerRotation
	move_and_slide()
3

Hey, I’m not explicitly using position. I am using the velocity and move_and_slide() which from what I understand uses vectors. But the vectors seem to be global and not local to the player.

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4

You can try to rotate the “vDirection” by the current rotation:

vDirection = vDirection.rotated(rotation)

Note that this might require a offset (like adding an extra 90 degree)

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7

Ok thanks I will give this a try

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8

No worries thanks for helping

9

I was able to achieve it with the following code;

extends CharacterBody2D

@export var speed = 400
@export var rotation_speed = 5
var rotation_direction = 0

func get_input():
	var input_direction = Input.get_vector("player1_move_left", "player1_move_right", "player1_move_up", "player1_move_down")
	velocity = input_direction * speed
	rotation_direction = Input.get_axis("player1_rotate_CCW", "player1_rotate_CW")
	

func _physics_process(delta):
	get_input()
	rotation += rotation_direction * rotation_speed * delta
	move_and_slide()
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