main.gd

extends Node

@onready var bg_music_list: Array = [
    preload("res://Music/bravery_demon.ogg"),
    preload("res://Music/bravery_run.ogg"),
    preload("res://Music/homely_arcade.ogg")
]

@onready var music_player = $Music

var is_game_running: bool = false

# Related to screen shake
var current_shake_strength = 0;

func _ready() -> void:
    GameManager.game_started.connect(restart_game)
    GameManager.game_over.connect(_on_game_over)

    UiManager.main_scene = self
    UiManager.emit_signal("skipped_to_main_menu")
    UiManager.triggered_screen_shake.connect(_activate_screen_shake)

    _start_rand_music()

func _on_game_over() -> void:
    is_game_running = false

func restart_game() -> void:
    is_game_running = true

func _on_music_finished() -> void:
    _start_rand_music()

func _start_rand_music() -> void:
    music_player.stream = bg_music_list.pick_random()
    music_player.play()

func _process(delta):
    # To calculate screenshake
    if current_shake_strength != 0:
        current_shake_strength = max(current_shake_strength - delta, 0);

        $ScreenShake/ColorRect.material.set_shader_parameter("ShakeStrength", max(current_shake_strength,0))

func _activate_screen_shake(shake_type: int = UiManager.STRENGTH_TYPES.MED) -> void:
    var triggered_shake_strength = UiManager.SHAKE_STRENGTHS.get(shake_type)
    current_shake_strength = triggered_shake_strength