mlpcardgame/Scenes/Components/Card.gd

extends Spatial

class_name Card

signal card_selected()
signal card_unselected()
signal card_picked()
signal card_dropped()
signal card_menu()

var clicked := false
var exhausted := false
var lifted := false
var flipped := false
export var cardID := ""
export var playerID := 0
export var inHand := false

onready var animation := $Border/AnimationPlayer

func _mouse_hover():
	emit_signal("card_selected")

func _mouse_blur():
	emit_signal("card_unselected")

func _input_event(camera, event, click_position, click_normal, shape_idx):
	# Mouse motion
	if clicked and event is InputEventMouseMotion:
		if not lifted:
			animation.play("lift")
			if inHand:
				animation.advance(1.0)
			emit_signal("card_picked")
			lifted = true
		var origin: Vector3 = camera.project_ray_origin(event.position)
		var direction: Vector3 = camera.project_ray_normal(event.position)
		if inHand:
			transform.origin = Vector3.ZERO + Vector3.RIGHT * direction * 3.0
		else:
			var denom := Vector3.UP.dot(direction)
			var t: float = (-camera.transform.origin).dot(Vector3.UP) / denom;
			transform.origin = origin + direction * t
	# Right click
	if event is InputEventMouseButton and event.pressed and event.button_index == BUTTON_RIGHT:
		# Show menu
		emit_signal("card_menu")
	# Left click
	if event is InputEventMouseButton and event.button_index == BUTTON_LEFT:
		# Update click status
		clicked = event.pressed
		
		# Check for card dropped
		if not clicked and lifted:
			if inHand:
				animation.play("drop")
			else:
				animation.play_backwards("lift")
			emit_signal("card_dropped")
			lifted = false
		
		# Check double click
		if event.doubleclick and not lifted and not animation.is_playing():
			if exhausted:
				animation.play_backwards("tap")
				exhausted = false
			else:
				animation.play("tap")
				exhausted = true

func reset_transform():
	$Border.transform.origin = Vector3.ZERO

func _menu_action(id: int):
	match id:
		0: # Flip
			if flipped:
				animation.play_backwards("flip")
				flipped = false
			else:
				animation.play("flip")
				flipped = true