- workaround to allow playing SW's Last Warrior mod in one go.

This disables the boss's death in L4 ending the game and just advances to the next level.
This seems to be the intent with this mod as the second episode starting at L5 is not defined and the first episode's subtitle advertises the full game.

source/core/g_mapinfo.cpp

@@ -645,6 +645,7 @@ MapFlagHandlers[] =
 	{ "sw_bossmeter_sumo",				MITYPE_SETFLAGG,LEVEL_SW_BOSSMETER_SUMO, 0, GAMEFLAG_SW },
 	{ "sw_bossmeter_zilla",				MITYPE_SETFLAGG,LEVEL_SW_BOSSMETER_ZILLA, 0, GAMEFLAG_SW },
 	{ "sw_deathexit_serpent",			MITYPE_SETFLAGG,LEVEL_SW_DEATHEXIT_SERPENT, 0, GAMEFLAG_SW },
+	{ "sw_deathexit_serpent_next",		MITYPE_SETFLAGG,LEVEL_SW_DEATHEXIT_SERPENT | LEVEL_SW_DEATHEXIT_SERPENT_NEXT, 0, GAMEFLAG_SW },
 	{ "sw_deathexit_sumo",				MITYPE_SETFLAGG,LEVEL_SW_DEATHEXIT_SUMO, 0, GAMEFLAG_SW },
 	{ "sw_deathexit_zilla",				MITYPE_SETFLAGG,LEVEL_SW_DEATHEXIT_ZILLA, 0, GAMEFLAG_SW },
 	{ "sw_spawnmines",					MITYPE_SETFLAGG,LEVEL_SW_SPAWNMINES, 0, GAMEFLAG_SW },

source/core/maphack.cpp

@@ -38,6 +38,7 @@
 #include "c_dispatch.h"
 #include "md4.h"
 #include "hw_sections.h"
+#include "mapinfo.h"
 
 static TArray<usermaphack_t> usermaphacks;
 TArray<int> blockingpairs[MAXWALLS];
@@ -249,6 +250,10 @@ static int32_t LoadMapHack(const char *filename)
                 }
             }
         }
+        else if (sc.Compare("sw_serp_continue")) // This is a hack for SW's Last Warrior mod to continue from L4 to L5.
+        {
+            currentLevel->gameflags |= LEVEL_SW_DEATHEXIT_SERPENT_NEXT;
+        }
 
         else if (sc.Compare("angleoff") || sc.Compare("angoff"))
         {

source/core/mapinfo.cpp

@@ -71,6 +71,7 @@ CCMD(listmaps)
 
 MapRecord *FindMapByName(const char *nm)
 {
+	if (!nm || !*nm) return nullptr;
 	for (auto& map : mapList)
 	{
 		if (map->labelName.CompareNoCase(nm) == 0)

source/core/mapinfo.h

@@ -51,8 +51,9 @@ enum EMapGameFlags
 	LEVEL_SW_DEATHEXIT_SERPENT = 1024,
 	LEVEL_SW_DEATHEXIT_SUMO = 2048,
 	LEVEL_SW_DEATHEXIT_ZILLA = 4096,
+	LEVEL_SW_DEATHEXIT_SERPENT_NEXT = 8192,
 
-	LEVEL_WT_BOSSSPAWN = 8192,
+	LEVEL_WT_BOSSSPAWN = 16384,
 
 
 };

source/games/sw/src/player.cpp

@@ -7202,7 +7202,7 @@ domovethings(void)
         {
             FinishTimer = 0;
 			MapRecord *map = nullptr;
-			if (FinishAnim == ANIM_SUMO)
+			if (FinishAnim == ANIM_SUMO || FinishAnim == ANIM_SERP)
 			{
 				map = FindNextMap(currentLevel);
 			}

source/games/sw/src/weapon.cpp

@@ -5327,9 +5327,14 @@ ActorHealth(short SpriteNum, short amt)
         if (u->Health < u->MaxHealth/2)
         {
             FinishAnim = ANIM_SERP;
+            // Hack for Last Warrior which apparently needs to continue with the next level here.
+            if (!(currentLevel->gameflags & LEVEL_SW_DEATHEXIT_SERPENT_NEXT))
+            {
                 ChangeLevel(nullptr, g_nextskill);
                 return true;
             }
+            else FinishTimer = 1;
+        }
     }
 
     if (u->ID == SUMO_RUN_R0 && (currentLevel->gameflags & LEVEL_SW_DEATHEXIT_SUMO))

wadsrc/static/engine/compatibility/745182e393945e0d308e8e0a5ee80c3c.mhk

@@ -0,0 +1,2 @@
+// SW's Last Warrior level 4. Do not make the serpent's death end the game. The menu has no second episode so this needs to continue.
+sw_serp_continue