add achievement system

project.godot

@@ -10,6 +10,11 @@ config_version=4
 
 _global_script_classes=[ {
 "base": "Reference",
+"class": "abstract_achievement",
+"language": "GDScript",
+"path": "res://scripts/game/achievements/achievement.gd"
+}, {
+"base": "Reference",
 "class": "abstract_action",
 "language": "GDScript",
 "path": "res://characters/state/ai/action.gd"
@@ -465,6 +470,7 @@ _global_script_classes=[ {
 "path": "res://characters/persons/vladimir.gd"
 } ]
 _global_script_class_icons={
+"abstract_achievement": "",
 "abstract_action": "",
 "abstract_behavior": "",
 "abstract_dialogue": "",

scripts/game/achievements/achievement.gd

@@ -0,0 +1,17 @@
+class_name abstract_achievement
+
+static func id() -> String:
+	errors.debug_assert(false, "should not be called")
+	return ""
+
+static func name() -> String:
+	errors.debug_assert(false, "should not be called")
+	return ""
+
+static func description() -> String:
+	errors.debug_assert(false, "should not be called")
+	return ""
+
+static func icon() -> Resource:
+	errors.debug_assert(false, "should not be called")
+	return null

scripts/game/achievements/achievements.gd

@@ -0,0 +1,41 @@
+extends Node
+
+var achievement_data: Dictionary = {
+	"all_dialogues": {
+		"name": "Way too much talk",
+		"description": "See every dialogue text at least once.",
+		"condition": funcref(self, "_all_dialogues_unlock")
+	},
+	"high_speed": {
+		"name": "Light is my name",
+		"description": "Be fast.",
+		"condition": funcref(self, "_high_speed_unlock")
+	},
+	"all_dead": {
+		"name": "I bring death",
+		"description": "Kill them. All of them. Then yourself.",
+		"condition": funcref(self, "_all_dead_unlock")
+	}
+}
+
+var achievement_progress: Dictionary = {}
+
+func _process(_delta: float):
+	for achievement in achievement_data.keys():
+		if(achievement_progress.get(achievement, false)):
+			continue
+		var unlock_func: FuncRef = achievement_data[achievement]["condition"]
+		if(unlock_func):
+			achievement_progress[achievement] = unlock_func.call_func()
+
+func _all_dialogues_unlock() -> bool:
+	return true
+
+func _all_dead_unlock() -> bool:
+	for x in game.mgmt.char_data.values():
+		if(!x.get("stats", {}).get("dead", false)):
+			return false
+	return true
+
+func _high_speed_unlock() -> bool:
+	return game.mgmt.player.move.velocity.length_squared() > 1000.0