Merge pull request #554 from TwilitRealm/achievements

achievements

include/dusk/achievements.h

@@ -0,0 +1,65 @@
+#pragma once
+
+#include <cstdint>
+#include <functional>
+#include <queue>
+#include <string>
+#include <vector>
+#include "nlohmann/json.hpp"
+
+namespace dusk {
+
+enum class AchievementCategory : uint8_t {
+    Story,
+    Collection,
+    Challenge,
+    Minigame,
+    Glitched
+};
+
+struct Achievement {
+    const char* key;
+    const char* name;
+    const char* description;
+    AchievementCategory category;
+    bool isCounter;
+    int32_t goal;
+    int32_t progress;
+    bool unlocked;
+};
+
+// Responsible for updating a.progress.
+// Use extra for any per-achievement state that must survive across frames or sessions, extra is saved
+using AchievementCheckFn = std::function<void(Achievement& a, nlohmann::json& extra)>;
+
+class AchievementSystem {
+public:
+    static AchievementSystem& get();
+
+    void load();
+    void save();
+    void tick();
+    void clearAll();
+
+    std::vector<Achievement> getAchievements() const;
+    bool hasPendingUnlock() const { return !m_pendingUnlocks.empty(); }
+    std::string consumePendingUnlock();
+
+private:
+    struct Entry {
+        Achievement achievement;
+        AchievementCheckFn check;
+        nlohmann::json extra;
+    };
+
+    AchievementSystem();
+    static std::vector<Entry> makeEntries();
+    void processEntry(Entry& e);
+
+    std::vector<Entry> m_entries;
+    bool m_loaded = false;
+    bool m_dirty = false;
+    std::queue<std::string> m_pendingUnlocks;
+};
+
+} // namespace dusk

include/dusk/settings.h

@@ -86,6 +86,7 @@ struct UserSettings {
         ConfigVar<bool> disableMainHUD;
         ConfigVar<bool> pauseOnFocusLost;
         ConfigVar<bool> enableLinkDollRotation;
+        ConfigVar<bool> enableAchievementNotifications;
 
 
         // Graphics