Fix research

core/research/research_panel.gd

@@ -0,0 +1,60 @@
+class_name ResearchPanel
+extends PanelContainer
+
+const RESEARCH_ROW_SCENE: PackedScene = preload("res://core/research/research_row.tscn")
+
+@onready var _title_label: Label = $ScrollContainer/VBoxContainer/TitleLabel
+@onready var _research_rows_container: VBoxContainer = $ScrollContainer/VBoxContainer/ResearchRows
+
+var _game_state: LevelGameState
+var _research_rows: Dictionary = {}
+
+func _ready() -> void:
+	_game_state = find_parent("LevelGameState")
+	if _game_state == null:
+		push_error("ResearchPanel: Could not find LevelGameState parent")
+		return
+	
+	_game_state.research_xp_changed.connect(_on_research_xp_changed)
+	_game_state.research_level_up.connect(_on_research_level_up)
+	
+	_build_research_rows()
+	_refresh_all()
+
+func _build_research_rows() -> void:
+	for child in _research_rows_container.get_children():
+		child.queue_free()
+	_research_rows.clear()
+	
+	if _game_state.research_catalogue:
+		for research in _game_state.research_catalogue.get_all_research():
+			var row: ResearchRow = RESEARCH_ROW_SCENE.instantiate()
+			_research_rows_container.add_child(row)
+			row.setup(research)
+			_research_rows[research.id] = row
+
+func _refresh_all() -> void:
+	for row in _research_rows.values():
+		_refresh_row(row)
+
+func _refresh_row(row: ResearchRow) -> void:
+	var research_id: StringName = row.get_research_id()
+	var xp: BigNumber = _game_state.get_research_xp(research_id)
+	var level: int = _game_state.get_research_level(research_id)
+	var research: ResearchData = _game_state.research_catalogue.get_research_by_id(research_id)
+	
+	if research != null:
+		var progress: float = research.get_xp_progress(xp)
+		var multiplier: float = research.get_multiplier_for_level(level)
+		var xp_current: BigNumber = xp.subtract(research.get_total_xp_for_level(level))
+		var xp_needed: BigNumber = research.get_xp_required_for_level_big(level + 1)
+		
+		row.update_display(level, progress, multiplier, xp_current, xp_needed)
+
+func _on_research_xp_changed(research_id: StringName, _new_xp: BigNumber) -> void:
+	if _research_rows.has(research_id):
+		_refresh_row(_research_rows[research_id])
+
+func _on_research_level_up(research_id: StringName, _old_level: int, _new_level: int) -> void:
+	if _research_rows.has(research_id):
+		_refresh_row(_research_rows[research_id])