Variable Jump

Part of the Input and Movement section of Coddy's Godot journey. Lesson 16 of 28.

In most platformers, a tap makes a small hop and a held button makes a full jump.

To do this, cut the jump when the button is released. Input.is_action_just_released("jump") is true in the one frame the key comes up. If the hero is still rising then, halve its upward speed:

if Input.is_action_just_released("jump") and velocity.y < 0:
	velocity.y = velocity.y / 2

velocity.y < 0 means the hero is still rising. Without it, a release on the way down would slow the fall.

Hold the key past the top of the jump, and nothing is cut.

Challenge

Medium

Make a short tap of jump a small hop.

After the jump's if, add an if for Input.is_action_just_released("jump") and velocity.y < 0.
Inside it, halve velocity.y.

Press Play: a quick tap of Space hops, and holding it makes the full jump. Then Check.

Try it yourself

extends CharacterBody2D

var speed = 220
var gravity = 1000
var jump_velocity = -500

func _physics_process(delta):
	velocity.y += gravity * delta
	if Input.is_action_just_pressed("jump") and is_on_floor():
		velocity.y = jump_velocity
	velocity.x = Input.get_axis("move_left", "move_right") * speed
	move_and_slide()