added PlayCardButton; influences card selection

elements/player_hand.gd

@@ -11,18 +11,22 @@ extends Node3D
 
 ## How many test cards to add
 @export_range(0, 20) var test_card_count: int = 0
-
 @export var card_scene: PackedScene
-
 @export_range(0, 20, 0.1, "radians_as_degrees") var card_angle: float
 
 var _selected_card: PlayingCard = null
 
+signal card_selected(card_id: int)
+signal card_played(card_id: int)
+
 func _ready() -> void:
 	_arrange_cards()
 	for i in test_card_count:
 		var card: PlayingCard = card_scene.instantiate()
 		card.card_clicked.connect(_on_card_clicked)
+		var test_details: Card = Card.new()
+		test_details.card_id = 2
+		card.card_details = test_details
 		add_card(card)
 		await get_tree().create_timer(0.2).timeout
 
@@ -58,3 +62,17 @@ func _on_card_clicked(playing_card: PlayingCard) -> void:
 	else:
 		_selected_card = playing_card
 		playing_card.select()
+	
+	if _selected_card:
+		card_selected.emit(_selected_card.card_details.card_id)
+	else:
+		card_selected.emit(-1)
+
+func _on_play_card_button_pressed() -> void:
+	if not _selected_card:
+		return
+	
+	card_played.emit(_selected_card.card_details.card_id)
+	_selected_card.unselect()
+	_selected_card = null
+	card_selected.emit(-1)