CharacterBody2D

Part of the Input and Movement section of Coddy's Godot journey. Lesson 7 of 28.

A Node2D goes through walls. A CharacterBody2D bumps into things. In the Scene tab, the Hero is now a CharacterBody2D. Its CollisionShape2D child is a circle, the hero's solid size. The walls and the pillar have collision shapes too.

A body has a velocity, a Vector2 in pixels per second. Setting it moves nothing. move_and_slide() moves the body by its velocity for one frame and stops it at anything solid:

func _physics_process(delta):
	velocity = Vector2(150, 0)
	move_and_slide()

Move bodies in _physics_process, which runs in step with the physics. move_and_slide() applies the frame's time, so never multiply velocity by delta.

Challenge

Easy

Make the hero move by its velocity.

In _physics_process(), under the velocity line, add move_and_slide().
Indent it with one tab, like the line above.

Press Play: the hero glides right at 150 pixels per second and stops at the pillar. Then Check.

Try it yourself

extends CharacterBody2D

func _physics_process(delta):
	velocity = Vector2(150, 0)

All lessons in Input and Movement

1Input Actions

Press to Move Left and Right One 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

CharacterBody2DWalk 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