Left and Right

Part of the Input and Movement section of Coddy's Godot journey. Lesson 2 of 28.

One if checks one action. To walk both ways, add a second if for the other action:

func _process(delta):
	if Input.is_action_pressed("move_right"):
		position.x += 200 * delta
	if Input.is_action_pressed("move_left"):
		position.x -= 200 * delta

Every frame Godot runs both checks. Each one moves the hero only while its key is held.

Hold both keys and both lines run in the same frame. One adds 200 pixels per second, the other takes them away, so the hero stays still.

Challenge

Easy

Make the hero walk left too.

Under the first if, add a second one that asks about "move_left".
Inside it, move the hero left at 200 pixels per second.

Press Play and hold the left arrow: the hero walks left. Then Check.

Try it yourself

extends Node2D

func _process(delta):
	if Input.is_action_pressed("move_right"):
		position.x += 200 * delta

All lessons in Input and Movement

1Input Actions

Press to MoveLeft and RightOne Axis Four Directions Just Pressed Unhandled Input

4Smooth Movement

Speed Up Slowly Friction Face the Way You Move Clamp to the Screen Clamp Both Axes

2CharacterBody2D

CharacterBody2D Walk With Velocity Walls Stop You Walk Everywhere Fair Diagonals

5Project: Platformer Hero

Hero: Run Hero: Jump

Hero: Smooth Run

Hero: Face the Way

Hero: Back to the Start

Hero: Reach the Ledge

3Gravity and Jumping

Fall With Gravity Jump Up Only From the Floor Run and Jump Variable Jump Double Jump

Practice on your own: Godot playground