extends Node

var rng = RandomNumberGenerator.new()
var PlatformScene := preload("res://scenes/platform.tscn")
var platforms := []
var dead = false
@onready var height: float = get_viewport().size.y
@onready var width: float = get_viewport().size.x
@onready var player: CharacterBody2D = %Player
const N = 10

# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	for i in range(N):
		var y = i * height / N
		# TODO: don't place platforms where others exist already
		place_platform(y)


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta: float) -> void:
	pass
	
func _physics_process(delta: float) -> void:
	var move = 0
	if player.position.y < height/2 and not dead:
		move = height/2 - player.position.y
		player.position.y = height/2
	elif player.position.y > height or dead:
		dead = true
		move = -40
		player.position.y -= 100/2.87
	
	
		
	for platform in platforms:
		platform.position.y +=  move
		if platform.position.y > height + platform.get_node("Sprite2D").texture.get_height():
			platform.position = Vector2(rng.randf_range(0, width), 0)
			
	
	

func place_platform(y: float = 0) -> void:
	var platform_instance = PlatformScene.instantiate()
	var x = rng.randf_range(0, width)
	platform_instance.position = Vector2(x, y)
	add_child(platform_instance)
	platforms.append(platform_instance)