Drop support for save game format 3

components/esm3/animationstate.cpp

@@ -21,18 +21,7 @@ namespace ESM
             anim.mGroup = esm.getHString();
             esm.getHNOT(anim.mTime, "TIME");
             esm.getHNOT(anim.mAbsolute, "ABST");
-
-            esm.getSubNameIs("COUN");
-            // workaround bug in earlier version where size_t was used
-            esm.getSubHeader();
-            if (esm.getSubSize() == 8)
-                esm.getT(anim.mLoopCount);
-            else
-            {
-                uint32_t loopcount;
-                esm.getT(loopcount);
-                anim.mLoopCount = (uint64_t)loopcount;
-            }
+            esm.getHNT(anim.mLoopCount, "COUN");
 
             mScriptedAnims.push_back(anim);
         }

components/esm3/formatversion.hpp

@@ -26,7 +26,7 @@ namespace ESM
     inline constexpr FormatVersion MaxActiveSpellSlotIndexFormatVersion = 27;
     inline constexpr FormatVersion CurrentSaveGameFormatVersion = 29;
 
-    inline constexpr FormatVersion MinSupportedSaveGameFormatVersion = 3;
+    inline constexpr FormatVersion MinSupportedSaveGameFormatVersion = 4;
     inline constexpr FormatVersion OpenMW0_48SaveGameFormatVersion = 21;
     inline constexpr FormatVersion OpenMW0_49SaveGameFormatVersion = CurrentSaveGameFormatVersion;
 }

components/esm3/projectilestate.cpp

@@ -37,18 +37,11 @@ namespace ESM
         BaseProjectileState::load(esm);
 
         mSpellId = esm.getHNRefId("SPEL");
-        if (esm.isNextSub("SRCN")) // for backwards compatibility
-            esm.skipHSub();
-        EffectList().load(esm); // for backwards compatibility
         esm.getHNT(mSpeed, "SPED");
         if (esm.peekNextSub("ITEM"))
             mItem = esm.getFormId(true, "ITEM");
         if (esm.isNextSub("SLOT")) // for backwards compatibility
             esm.skipHSub();
-        if (esm.isNextSub("STCK")) // for backwards compatibility
-            esm.skipHSub();
-        if (esm.isNextSub("SOUN")) // for backwards compatibility
-            esm.skipHSub();
     }
 
     void ProjectileState::save(ESMWriter& esm) const