Refactor scene structure and resource paths; add death and game over screens

scripts/ui/marketplace.gd

@@ -0,0 +1,71 @@
+class_name Marketplace
+extends Node
+
+@export var root: Control
+@export var skill_data: Array[SkillData] = []
+@export var grid: GridContainer
+@export var font: Font
+@export var skill_unlocker: SkillUnlockerComponent
+@export var components_to_disable: Array[Node] = []
+@export var marketplace_button: PackedScene
+
+@onready var game_manager: GM = $"/root/GameManager"
+
+var buttons: Array[Button] = []
+
+
+func _ready() -> void:
+	if not skill_unlocker:
+		return
+
+	var skills_to_unlock: Array[SkillData] = []
+
+	for skill in skill_data:
+		if skill in game_manager.player_state['unlocked_skills']:
+			continue
+		skills_to_unlock.append(skill)
+
+	for skill in skills_to_unlock:
+		create_upgrade_button(skill)
+
+
+func _input(event: InputEvent) -> void:
+	if event.is_action_pressed("show_marketplace"):
+		if root.is_visible():
+			root.hide()
+			for component in components_to_disable:
+				component.process_mode = PROCESS_MODE_INHERIT
+		else:
+			root.show()
+			for component in components_to_disable:
+				component.process_mode = PROCESS_MODE_DISABLED
+			if buttons:
+				buttons[0].grab_focus()
+
+
+func create_upgrade_button(skill: SkillData):
+	var button := marketplace_button.instantiate() as Button
+	button.text = skill.name + " " + str(skill.cost)
+	button.icon = skill.icon
+
+	button.pressed.connect(func () -> void: _on_button_pressed(skill))
+
+	buttons.append(button)
+	grid.add_child(button)
+	grid.queue_sort()
+
+
+func remove_button(skill: SkillData):
+	for child in grid.get_children():
+		if child.text == skill.name + str(skill.cost):
+			child.queue_free()
+			break
+
+
+func _on_button_pressed(skill: SkillData) -> void:
+	if not skill_unlocker:
+		return
+
+	if skill_unlocker.try_unlock_skill(skill):
+		remove_button(skill)
+