Score and Victory

Part of the Projects section of Coddy's Godot journey. Lesson 17 of 33.

A big rock is worth 20 points and a small one 50. _on_rock_broken knows the size, so it adds the points and updates $HUD/Score.

You win when no rocks are left. Start the count at 4. Take one off for each broken rock, and add two when a big one splits:

if rock.size == 2:
	rocks_left += 2
rocks_left -= 1
if rocks_left == 0:
	$HUD/Message.text = "You Win!"
	get_tree().paused = true

Count the two new rocks here, not in spawn_rock. spawn_rock runs at the end of the frame, so the count would reach zero before the last two small rocks exist.

The rocks, bullets and ship are Pausable. Main is Always.

Challenge

Hard

In main.gd:

Add var score = 0 and show Score: 0 at the start.
A broken big rock adds 20 and a small one 50. Show the new score.
Add var rocks_left = 4 and count it as shown. At zero, show You Win! and pause the game.

Try it yourself

extends Node2D

const ROCK = preload("res://rock.tscn")

func _ready():
	for i in 4:
		spawn_rock(Vector2(randf_range(0, 640), 0), Vector2(randf_range(-90, 90), randf_range(40, 90)), 2)

func spawn_rock(where, velocity, size):
	var rock = ROCK.instantiate()
	rock.position = where
	rock.velocity = velocity
	rock.size = size
	rock.broken.connect(_on_rock_broken)
	add_child(rock)

func _on_rock_broken(rock):
	if rock.size == 2:
		spawn_rock.call_deferred(rock.position, rock.velocity.rotated(0.8) * 1.5, 1)
		spawn_rock.call_deferred(rock.position, rock.velocity.rotated(-0.8) * 1.5, 1)