Finish achievement

src/d/d_menu_letter.cpp

@@ -17,6 +17,10 @@
 #include "d/d_msg_scrn_arrow.h"
 #include "d/d_lib.h"
 
+#ifdef TARGET_PC
+#include "dusk/achievements.h"
+#endif
+
 #if VERSION == VERSION_GCN_JPN
 #define D_MENU_LETTER_LINE_MAX 9
 #else
@@ -514,6 +518,10 @@ void dMenu_Letter_c::read_open_init() {
     setAButtonString(0);
     setBButtonString(0);
     mpBlackTex->setAlpha(0);
+
+    #ifdef TARGET_PC
+        dusk::AchievementSystem::get().signal("open_letter");
+    #endif
 }
 
 void dMenu_Letter_c::read_open_move() {

src/dusk/achievements.cpp

@@ -376,6 +376,24 @@ std::vector<AchievementSystem::Entry> AchievementSystem::makeEntries() {
                 }
             },
             {}
+        },
+        {
+            {
+                "email-me",
+                "Email Me",
+                "Read a letter during the Dark Beast Ganon fight.",
+                AchievementCategory::Misc,
+                false, 0, 0, false
+            },
+            [](Achievement& a, json&) {
+
+                void* dbgExists = fopAcM_SearchByName(fpcNm_B_MGN_e);
+                if(dbgExists && AchievementSystem::get().hasSignal("open_letter")) {
+                    a.progress = 1;
+                }
+                
+            },
+            {}
         }
     };
 }