speedhack audio

src/hacks.cpp

@@ -12,7 +12,7 @@ void Hacks::Init() {
                 {"Unlock Items", "The following elements will be unlocked:\n- Icons + Colors\n- Practice Music Sync\n- Music Unlocker", "unlock_items"}, // +
                 {"No Respawn Blink", "Upon respawning, the cube will not produce an unpleasant flicker", "no_respawn_blink"}, // +
                 {"No Death Effect", "Upon death, the cube will not emit an exploding effect", "no_death_effect"}, // +
-                {"No Transition Old", "Fast transition between scenes (legeacy)", "no_transition"}, // +
+                {"No Transition Old", "Fast transition between scenes (legacy)", "no_transition"}, // +
                 {"Safe Mode", "Disables progress on levels", "safe_mode"} // +
             }
         },

src/hooks.cpp

@@ -27,6 +27,7 @@
 #include <Geode/modify/EditLevelLayer.hpp>
 #include <Geode/modify/GameObject.hpp>
 #include <Geode/modify/LevelEditorLayer.hpp>
+#include <Geode/modify/FMODAudioEngine.hpp>
 #include "hacks.hpp"
 #include "config.hpp"
 
@@ -74,6 +75,20 @@ class $modify(cocos2d::CCScheduler) {
     }
 };
 
+class $modify(FMODAudioEngine) {
+    void update(float delta) {
+        auto &config = Config::get();
+
+        FMODAudioEngine::update(delta);
+
+        FMOD::ChannelGroup* group;
+        float speed = config.get<bool>("speedhack_enabled", false) ? config.get<float>("speedhack_value", 1.f) : 1.f;
+        if (m_system->getMasterChannelGroup(&group) == FMOD_OK) {
+            group->setPitch(speed);
+        }
+    }
+};
+
 class $modify(PlayLayer) {
     struct Fields {
         GameObject* anticheat_obj = nullptr;