Score a Pipe

Part of the Projects section of Coddy's Godot journey. Lesson 27 of 36.

Each pipe you pass is a point. The pipe has a child Area2D called Gap, a thin strip behind the opening. The flyer touches it only after it gets through, so that is when you score.

In pipe.gd, connect the child's signal through $Gap and emit scored:

$Gap.body_entered.connect(_on_gap_body_entered)

func _on_gap_body_entered(body):
	scored.emit()

In main.gd, connect each new pipe's scored. Add one to score and show it in $HUD/Score. str(score) turns the number into text. Show 0 at the start.

Challenge

Medium

Score a point for every pipe you pass.

In pipe.gd, add signal scored, connect $Gap.body_entered and emit scored when a body enters the gap.
In main.gd, add var score = 0 and show 0 in $HUD/Score at the start.
Connect each pipe's scored to a function that adds one and shows the score.

Press Play and fly through a gap: the score shows 1. Then Check.

Try it yourself

extends Area2D

signal hit

const SPEED = 160

func _ready():
	body_entered.connect(_on_body_entered)

func _physics_process(delta):
	position.x -= SPEED * delta
	if position.x < -60:
		queue_free()

func _on_body_entered(body):
	hit.emit()