extends Label
class_name FloatingDamageText

var target_pos: Vector3
var camera: Camera3D
var float_offset: float = 0.0

func _ready() -> void:
	# Setup Tween for floating up and fading out
	var tween = create_tween()
	tween.set_parallel(true)
	# Float up 100 pixels
	tween.tween_property(self, "float_offset", 100.0, 1.0)
	# Fade out
	tween.tween_property(self, "modulate:a", 0.0, 1.0)
	
	tween.chain().tween_callback(queue_free)

func _process(_delta: float) -> void:
	if not is_instance_valid(camera):
		queue_free()
		return
		
	if camera.is_position_behind(target_pos):
		visible = false
	else:
		visible = true
		var screen_pos = camera.unproject_position(target_pos)
		# Center the label on the point, then subtract the float offset (moving up on screen)
		position = screen_pos - size / 2.0 + Vector2(0, -float_offset)