initial game save implementation using ConfigFile, plus some experimentation with ResourceSaver though nonfunctional

scenes/main_menu.tscn

@@ -30,15 +30,27 @@ layout_mode = 2
 text = "Play
 "
 
-[node name="TestButton" type="Button" parent="MenuButtons"]
+[node name="SaveButton" type="Button" parent="MenuButtons"]
 layout_mode = 2
-text = "Test
+text = "Save"
+
+[node name="LoadButton" type="Button" parent="MenuButtons"]
+layout_mode = 2
+text = "Load
 "
 
 [node name="ExitButton" type="Button" parent="MenuButtons"]
 layout_mode = 2
 text = "Exit"
 
+[node name="TestButton" type="Button" parent="MenuButtons"]
+visible = false
+layout_mode = 2
+text = "Test
+"
+
 [connection signal="pressed" from="MenuButtons/PlayButton" to="." method="_on_play_button_pressed"]
-[connection signal="pressed" from="MenuButtons/TestButton" to="." method="_on_test_button_pressed"]
+[connection signal="pressed" from="MenuButtons/SaveButton" to="." method="_on_save_button_pressed"]
+[connection signal="pressed" from="MenuButtons/LoadButton" to="." method="_on_load_button_pressed"]
 [connection signal="pressed" from="MenuButtons/ExitButton" to="." method="_on_exit_button_pressed"]
+[connection signal="pressed" from="MenuButtons/TestButton" to="." method="_on_test_button_pressed"]

scripts/Globals.gd

@@ -3,6 +3,8 @@ extends Node
 
 
 var debugSpeedEnabled: bool
+var player_save := ConfigFile.new()
+
 
 class World:
     enum Zone {
@@ -108,3 +110,33 @@ func _input(event: InputEvent) -> void:
             Engine.time_scale = 10.0
         if event.is_action_pressed("game_speed_normal"):
             Engine.time_scale = 1.0
+
+
+func save_game() -> void:
+    player_save.set_value("player", "player_name", PlayerState.player_name)
+    player_save.set_value("player", "constitution", PlayerState.constitution)
+    player_save.set_value("player", "experience", PlayerState.experience)
+    player_save.set_value("player", "level", PlayerState.level)
+    player_save.set_value("player", "base_health", PlayerState.base_health)
+    player_save.set_value("player", "base_resource", PlayerState.base_resource)
+    player_save.set_value("player", "weapon_type", PlayerState.weapon_type)
+    player_save.set_value("player", "zone_duration", PlayerState.zone_duration)
+    
+    player_save.save_encrypted_pass("user://player_save.sav", "test")
+    
+
+func load_game() -> void:
+    var err = player_save.load_encrypted_pass("user://player_save.sav", "test")
+
+    if err != OK:
+        print("Failed to load save file.")
+        return
+
+    PlayerState.player_name = player_save.get_value("player", "player_name")
+    PlayerState.constitution = player_save.get_value("player", "constitution")
+    PlayerState.experience = player_save.get_value("player", "experience")
+    PlayerState.level = player_save.get_value("player", "level")
+    PlayerState.base_health = player_save.get_value("player", "base_health")
+    PlayerState.base_resource = player_save.get_value("player", "base_resource")
+    PlayerState.weapon_type = player_save.get_value("player", "weapon_type")
+    PlayerState.zone_duration = player_save.get_value("player", "zone_duration")

scripts/Player.gd

@@ -7,7 +7,6 @@ const EXP_EXPONENT := 2.4
 
 var area_exp := 0.0
 var current_health: int
-var resource_type: String
 var current_resource: int
 var max_health
 var max_resource
@@ -17,14 +16,28 @@ func _ready() -> void:
     SignalBus.enemy_died.connect(_on_enemy_died)
     SignalBus.quest_completed.connect(_on_quest_completed)
     SignalBus.enemy_damaged_player.connect(_on_enemy_damaged_player)
-    max_health = PlayerState.max_health
+    max_health = _set_player_health()
-    max_resource = PlayerState.max_resource
+    max_resource = _set_player_resource()
     _set_player_health_display()
     _set_player_resource_display()
     $PlayerExpBar.value = _get_level_progress_percent()
     $PlayerLabel/PlayerLevel.text = str(floor(PlayerState.level))
     
 
+func _set_player_health() -> int:
+    # modify player health based on stats or temporary buffs
+    return PlayerState.base_health * PlayerState.constitution
+
+
+func _set_player_resource() -> int:
+    # modify player resources based on weapon and stats or temporary buffs
+    match PlayerState.weapon_type:
+        Globals.Weapon.WeaponType.BOW:
+            return PlayerState.base_resource
+        _:
+            return PlayerState.base_resource
+
+
 func _on_enemy_died(enemyDifficulty, enemyTier, _enemyFaction) -> void:
     # var kill_exp = pow(pow(enemyTier + 1, enemyDifficulty), 3)
     var kill_exp = (enemyTier + 1) * enemyDifficulty
@@ -84,7 +97,7 @@ func _update_player_resource(change: int) -> void:
     var prev_resource = current_resource
     var new_resource = prev_resource + change
     current_resource = new_resource
-    PlayerState.current_resource = current_resource
+    # PlayerState.current_resource = current_resource
     if current_resource <= 0:
         $PlayerResourceBar/PlayerResourceCurrent.text = str(0)
         $PlayerResourceBar.value = 0

scripts/PlayerData.gd

@@ -0,0 +1,46 @@
+# player save data resource to use with ResourceSaver
+class_name PlayerData
+extends Resource
+
+
+@export var player_name := "Player"
+@export var constitution := 1
+@export var experience := 0.0
+@export var level := 1.0
+@export var base_health := 100
+@export var base_resource := 100
+@export var weapon_type: Globals.Weapon.WeaponType
+@export var zone_duration := 0
+
+
+# Confused on where this all goes...
+# Let's assume the PlayerState is the node where we save the player data in game
+var PlayerState: Node
+
+var save_path := "user://player_data.tres" # <- tres is Text RESource
+
+func save() -> void:
+    var data := PlayerData.new()
+    data.player_name = PlayerState.player_name
+    data.constitution = PlayerState.constitution
+    data.experience = PlayerState.experience
+    data.level = PlayerState.level
+    data.base_health = PlayerState.base_health
+    data.base_resource = PlayerState.base_resource
+    data.weapon_type = PlayerState.weapon_type
+    data.zone_duration = PlayerState.zone_duration
+  
+    var error := ResourceSaver.save(data, save_path)
+    if error:
+      print("An error happened while saving data: ", error)
+
+func load() -> void:
+    var data: PlayerData = load(save_path)
+    PlayerState.player_name = data.player_name
+    PlayerState.constitution = data.constitution
+    PlayerState.experience = data.experience
+    PlayerState.level = data.level
+    PlayerState.base_health = data.base_health
+    PlayerState.base_resource = data.base_resource
+    PlayerState.weapon_type = data.weapon_type
+    PlayerState.zone_duration = data.zone_duration

scripts/PlayerState.gd

@@ -4,12 +4,11 @@
 extends Node
 
 
+var player_name := "Player"
 var constitution := 1
 var experience := 0.0
 var level := 1.0
-var max_health := constitution * 100
+var base_health := 100
-var max_resource := 100
+var base_resource := 100
-var current_resource := max_resource
 var weapon_type: Globals.Weapon.WeaponType
-
 var zone_duration := 0

scripts/main_menu.gd

@@ -1,6 +1,11 @@
 extends Control
 
 
+func _ready() -> void:
+    if OS.is_debug_build():
+        $MenuButtons/TestButton.show()
+
+
 func _on_play_button_pressed() -> void:
     get_tree().change_scene_to_file("res://scenes/combatUIScene.tscn")
 
@@ -9,5 +14,14 @@ func _on_exit_button_pressed() -> void:
     get_tree().quit()
 
 
+func _on_load_button_pressed() -> void:
+    Globals.load_game()
+
+
+func _on_save_button_pressed() -> void:
+    # ResourceSaver.save(PlayerState, "user://player_state.tres")
+    Globals.save_game()
+
+
 func _on_test_button_pressed() -> void:
     pass # Replace with function body.