way too many changes to list, oops. big rewrite.

UI/hero_select_card.gd

@@ -0,0 +1,20 @@
+extends PanelContainer
+
+signal pressed(hero_class: int)
+signal button_mouse_entered()
+
+var hero_class: HeroClass
+
+
+func set_hero(hero: HeroClass) -> void:
+	hero_class = hero
+	$VBoxContainer/Label.text = hero.hero_name
+	$VBoxContainer/TextureRect.texture = hero.texture
+
+
+func _on_button_pressed() -> void:
+	pressed.emit(Data.characters.find(hero_class))
+
+
+func _on_button_mouse_entered() -> void:
+	button_mouse_entered.emit()