Breakout Lives

Part of the Projects section of Coddy's Godot journey. Lesson 8 of 33.

When the paddle misses, the ball falls out of the bottom. Give the player three lives.

In ball.gd, a ball below y = 380 was missed. Emit a missed signal and serve the ball again above the paddle.

if position.y > 380:
	missed.emit()
	position = Vector2(320, 290)
	velocity = Vector2(110, -280)

In main.gd, count the lives down. At zero, show Game Over and pause with get_tree().paused = true. The paddle and ball are Pausable, so they freeze. Main is Always, so it keeps running and can read Enter:

func _process(delta):
	if get_tree().paused and Input.is_action_just_pressed("action"):
		get_tree().paused = false
		get_tree().reload_current_scene()

Unpause before you reload. The pause belongs to the tree, not the scene, so a reloaded scene would start frozen.

Challenge

Hard

In ball.gd, add signal missed. When position.y is over 380, emit it and put the ball back at (320, 290) with velocity (110, -280).
In main.gd, start with var lives = 3 and show Lives: 3 in $HUD/Lives. Each miss takes a life and updates the label.
At 0 lives, show Game Over in $HUD/Message and pause the game.
While paused, Enter (the action key) unpauses and reloads the scene.

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)]

var score = 0

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)
	$Ball.brick_broken.connect(_on_brick_broken)
	$HUD/Score.text = "Score: 0"

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