From dff8065f9579994a6cd41c3bd5f53d4d52de6445 Mon Sep 17 00:00:00 2001
From: Rob Kelly <contact@robkel.ly>
Date: Sun, 8 Dec 2024 21:39:50 -0700
Subject: [PATCH] Keybinds are persisted to user config

---
 project.godot                               |  1 +
 src/game/binding_loader.gd                  | 35 +++++++++++++++++++++
 src/ui/menus/settings_menu/settings_menu.gd |  2 +-
 src/util/binding_map.gd                     |  4 +++
 4 files changed, 41 insertions(+), 1 deletion(-)
 create mode 100644 src/game/binding_loader.gd
 create mode 100644 src/util/binding_map.gd

diff --git a/project.godot b/project.godot
index 36ba6ec..c8bc3c3 100644
--- a/project.godot
+++ b/project.godot
@@ -20,6 +20,7 @@ run/max_fps=60
 
 ClubCatalog="*res://src/equipment/clubs/club_catalog.tscn"
 GameSettings="*res://src/game/game_settings.gd"
+BindingLoader="*res://src/game/binding_loader.gd"
 
 [debug]
 
diff --git a/src/game/binding_loader.gd b/src/game/binding_loader.gd
new file mode 100644
index 0000000..9489218
--- /dev/null
+++ b/src/game/binding_loader.gd
@@ -0,0 +1,35 @@
+class_name BindingLoaderType extends Node
+## Handles persisting action input bindings.
+
+const BINDINGS_FILE := "user://bindings.tres"
+
+
+func _ready() -> void:
+	# Map may not be defined if no keybinds have been written
+	if FileAccess.file_exists(BINDINGS_FILE):
+		print_debug("Reading keybinds from ", BINDINGS_FILE)
+		var map: BindingMap = load(BINDINGS_FILE) as BindingMap
+
+		# Overwrite InputMap with loaded bindings
+		for action: StringName in map.bindings.keys():
+			# Clear existing bindings
+			InputMap.action_erase_events(action)
+			# Apply loaded binding
+			var event: InputEvent = map.bindings[action]
+			if event:
+				InputMap.action_add_event(action, event)
+
+
+func write() -> void:
+	# Build map from input actions
+	var map: BindingMap = BindingMap.new()
+	for action: StringName in InputMap.get_actions():
+		var events := InputMap.action_get_events(action)
+		if events:
+			map.bindings[action] = events[0]
+		else:
+			map.bindings[action] = null
+
+	# Write to disk
+	print_debug("Writing keybinds to ", BINDINGS_FILE)
+	ResourceSaver.save(map, BINDINGS_FILE)
diff --git a/src/ui/menus/settings_menu/settings_menu.gd b/src/ui/menus/settings_menu/settings_menu.gd
index 7c21c27..e3d68aa 100644
--- a/src/ui/menus/settings_menu/settings_menu.gd
+++ b/src/ui/menus/settings_menu/settings_menu.gd
@@ -18,7 +18,6 @@ func _get_settings_elements() -> Array[Setting]:
 
 
 func populate_control_bindings() -> void:
-	InputMap.get
 	for action: StringName in InputMap.get_actions():
 		if not action.begins_with("ui_"):
 			control_binding_list.add_child(ControlBinding.create(action))
@@ -38,6 +37,7 @@ func apply() -> void:
 ## Write all applied settings to disk.
 func save_settings() -> void:
 	ProjectSettings.save_custom(SETTINGS_FILE)
+	BindingLoader.write()
 
 
 ## Apply settings and close menu.
diff --git a/src/util/binding_map.gd b/src/util/binding_map.gd
new file mode 100644
index 0000000..a738b59
--- /dev/null
+++ b/src/util/binding_map.gd
@@ -0,0 +1,4 @@
+class_name BindingMap extends Resource
+## Serializable action input map. Used by `BindingLoader`.
+
+@export var bindings: Dictionary