Breakout Score

Part of the Projects section of Coddy's Godot journey. Lesson 7 of 36.

Every brick is worth 10 points. The ball knows when it breaks one, and main.gd keeps the score. A signal connects them. The ball emits it for each broken brick, and the main script listens.

In ball.gd, declare the signal at the top and emit it next to smash():

signal brick_broken

# in _on_body_entered, after body.smash():
brick_broken.emit()

In main.gd, connect it in _ready and add the points in the function it calls:

func _on_brick_broken():
	score += 10
	$HUD/Score.text = "Score: %d" % score

The label is in a CanvasLayer called HUD. Set it to Score: 0 in _ready too, or it stays empty until the first brick.

Challenge

Medium

Score 10 points for each brick.

In ball.gd, add signal brick_broken and emit it when a brick breaks.
In main.gd, add var score = 0 and show Score: 0 in $HUD/Score in _ready.
Connect $Ball.brick_broken to a function that adds 10 and shows the score.

Press Play and break a brick: the label shows Score: 10. Then Check.

Try it yourself

extends Node2D

const BRICK = preload("res://brick.tscn")
const COLORS = [Color(1, 0.42, 0.42), Color(1, 0.78, 0.34), Color(0.49, 0.95, 0.75), Color(0.369, 0.635, 1), Color(0.75, 0.82, 0.95)]

func _ready():
	for row in 5:
		for column in 8:
			var brick = BRICK.instantiate()
			brick.position = Vector2(68 + column * 72, 60 + row * 26)
			brick.color = COLORS[row]
			add_child(brick)