Fix Track Invocation Spam (#738)

* Update main.c

* Update TrackBrowser.cpp

* Add TrackBrowser_ResetSelectedTrack function declaration

* Add void keyword to function declarations

* Rename global track variable for clarity

* Update TrackBrowser.h

2 files changed, 15 insertions, 4 deletions

diff --git a/src/engine/TrackBrowser.cpp b/src/engine/TrackBrowser.cpp
index 7d7b958c8..d7c3907c0 100644
--- a/src/engine/TrackBrowser.cpp
+++ b/src/engine/TrackBrowser.cpp
@@ -80,8 +80,18 @@ extern "C" void TrackBrowser_SetTrack(const char* name) {
     TrackBrowser::Instance->SetTrack(std::string(name));
 }
 
-extern "C" void TrackBrowser_SetTrackFromCup() {
-    TrackBrowser::Instance->SetTrack(GetWorld()->GetCurrentCup()->GetTrack());
+static std::string sCurrentlySelectedTrack = "";
+extern "C" void TrackBrowser_SetTrackFromCup(void) {
+    const std::string& track = GetWorld()->GetCurrentCup()->GetTrack();
+    // Prevent repeated invoke spams
+    if (track != sCurrentlySelectedTrack) {
+        sCurrentlySelectedTrack = track;
+        TrackBrowser::Instance->SetTrack(track);
+    }
+}
+
+extern "C" void TrackBrowser_ResetSelectedTrack(void) {
+    sCurrentlySelectedTrack = "";
 }
 
 extern "C" void TrackBrowser_NextTrack(void) {
diff --git a/src/engine/TrackBrowser.h b/src/engine/TrackBrowser.h
index 89dec2f00..0a8f95ef9 100644
--- a/src/engine/TrackBrowser.h
+++ b/src/engine/TrackBrowser.h
@@ -59,7 +59,7 @@ public:
         );
     }
 
-    void SetTrack(std::string name) {
+    void SetTrack(const std::string& name) {
         if (gTrackRegistry.Find(name)) {
             gTrackRegistry.Invoke(name);
         } else {
@@ -191,6 +191,7 @@ extern "C" {
 #endif // __cplusplus
 void TrackBrowser_SetTrack(const char* name);
 void TrackBrowser_SetTrackFromCup(void); // <-- Not in TrackBrowser class
+void TrackBrowser_ResetSelectedTrack(void);
 void TrackBrowser_NextTrack(void);
 void TrackBrowser_PreviousTrack(void);
 size_t TrackBrowser_GetTrackIndex(void);
@@ -206,4 +207,4 @@ const char* TrackBrowser_GetMinimapTextureByIdx(size_t trackIndex);
 }
 #endif // __cplusplus
 
-#endif // TRACKBROWSER_H
\ No newline at end of file
+#endif // TRACKBROWSER_H