extends Label3D
class_name DamageNumber

## Floating damage number that animates upward and fades out

@export var float_speed: float = 3.0
@export var lifetime: float = 1.8
@export var spread: float = 0.7  # Random horizontal spread

var _elapsed: float = 0.0
var _velocity: Vector3 = Vector3.ZERO
var _initial_scale: float = 1.5

func _ready():
	# Random horizontal spread
	_velocity = Vector3(
		randf_range(-spread, spread),
		float_speed,
		randf_range(-spread, spread)
	)

	# Billboard mode so it always faces camera
	billboard = BaseMaterial3D.BILLBOARD_ENABLED

	# Start with full opacity
	modulate.a = 1.0

	# Larger initial scale for impact
	scale = Vector3.ONE * 0.5

func _process(delta):
	_elapsed += delta

	# Move upward with velocity
	position += _velocity * delta
	_velocity.y -= delta * 1.5  # Slight gravity effect

	# Fade out over lifetime (keep visible longer, then quick fade)
	var fade_progress = _elapsed / lifetime
	if fade_progress < 0.7:
		modulate.a = 1.0
	else:
		var fade_amount = (fade_progress - 0.7) / 0.3
		modulate.a = 1.0 - fade_amount

	# Pop animation - quick scale up, then gentle scale down
	if fade_progress < 0.15:
		# Quick pop up
		var scale_progress = fade_progress / 0.15
		var target_scale = _initial_scale * (0.5 + (0.5 * scale_progress))
		scale = Vector3.ONE * target_scale
	elif fade_progress < 0.3:
		# Slight bounce/overshoot
		var bounce_progress = (fade_progress - 0.15) / 0.15
		var overshoot = sin(bounce_progress * PI) * 0.15
		var target_scale = _initial_scale * (1.0 + overshoot)
		scale = Vector3.ONE * target_scale
	else:
		# Gentle shrink
		var shrink_progress = (fade_progress - 0.3) / 0.7
		var target_scale = _initial_scale * (1.0 - (shrink_progress * 0.3))
		scale = Vector3.ONE * target_scale

	# Delete when lifetime expired
	if _elapsed >= lifetime:
		queue_free()

## Set the damage number text and color
func set_damage(amount: float, was_blocked: bool = false):
	text = str(int(amount))

	if was_blocked:
		# Bright yellow/orange for blocked damage with strong contrast
		modulate = Color(1.0, 0.9, 0.0)  # Bright yellow
		outline_modulate = Color(0.3, 0.15, 0.0)  # Dark brown/black outline
	else:
		# Vibrant red for normal damage with black outline
		modulate = Color(1.0, 0.15, 0.15)  # Bright red
		outline_modulate = Color(0.1, 0.0, 0.0)  # Almost black outline

	# Much larger and bolder
	outline_size = 16
	font_size = 72

	# Add depth with larger outline
	pixel_size = 0.002  # Slightly larger pixels for better visibility