extends Projectile

@export var max_bounces : int = 10
@export var collision_shape: CollisionShape3D
@export var mesh: MeshInstance3D

@onready var material = mesh.get_surface_override_material(0)

var bounces = 0
var start_time
var end_time
var despawning = false

const EMISSION_MAX : float = 200
const EMISSION_LIFETIME : float = 1.75 #in seconds
const VELOCITY_REQUIRED_TO_HIT : float = 10

# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	start_time = Time.get_ticks_msec()
	end_time = start_time + (EMISSION_LIFETIME * 1000)
	
# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta: float) -> void:
	var current_time = (Time.get_ticks_msec())/end_time
	material.emission_energy_multiplier = clamp(lerp(EMISSION_MAX,0.0,current_time),0,EMISSION_MAX)
	
	if despawning:
		linear_velocity.y -= .1 * delta
	
func despawn():
	collision_shape.disabled = true
	gravity_scale = 0
	despawning = true
	await get_tree().create_timer(2).timeout
	queue_free()


func _on_timer_timeout() -> void:
	despawn()