Document mirage_tower.c. (Combine fldeff_groundshake.c and fossil_specials.c)

src/field_effect.c

@@ -12,6 +12,7 @@
 #include "fldeff.h"
 #include "gpu_regs.h"
 #include "main.h"
+#include "mirage_tower.h"
 #include "menu.h"
 #include "metatile_behavior.h"
 #include "overworld.h"
@@ -2325,7 +2326,7 @@ static void TeleportFieldEffectTask4(struct Task *task)
     {
         if (task->data[5] == FALSE)
         {
-            sub_81BE72C();
+            ClearMirageTowerPulseBlendEffect();
             task->data[5] = TRUE;
         }