A couple of minor fixes and comments that got accumulated in my tree.

git-svn-id: https://svn.eduke32.com/eduke32@2709 1a8010ca-5511-0410-912e-c29ae57300e0

polymer/eduke32/build/src/engine.c

@@ -14040,6 +14040,7 @@ int32_t getceilzofslope(int16_t sectnum, int32_t dax, int32_t day)
         walltype *wal;
 
         wal = &wall[sector[sectnum].wallptr];
+        // ceil(sqrt(2**31-1)) == 46341
         dx = wall[wal->point2].x-wal->x; dy = wall[wal->point2].y-wal->y;
         i = (nsqrtasm(dx*dx+dy*dy)<<5); if (i == 0) return(sector[sectnum].ceilingz);
         j = dmulscale3(dx,day-wal->y,-dy,dax-wal->x);

polymer/eduke32/source/actors.c

@@ -5877,6 +5877,7 @@ ACTOR_STATIC void G_MoveEffectors(void)   //STATNUM 3
                             g_player[p].ps->bobposy += x;
 
                             g_player[p].ps->ang += q;
+                            g_player[p].ps->ang &= 2047;
 
                             if (g_netServer || numplayers > 1)
                             {

polymer/eduke32/source/astub.c

@@ -748,6 +748,8 @@ static void MultiPskyInit(void)
         Bmemset(pskymultioff[i], 0, sizeof(pskymultioff[i]));
     }
 
+    // KEEPINSYNC with Polymer MAX OFFSET = 4
+
     // MOONSKY1
     //        earth          mountian   mountain         sun
     pskymultioff[0][6]=1;

polymer/eduke32/source/game.c

@@ -3587,7 +3587,7 @@ void G_DrawRooms(int32_t snum, int32_t smoothratio)
         }
         else if (software_screen_tilting)
         {
-            int32_t oviewingrange = viewingrange;  // save it from setviewtotile()
+            int32_t oviewingrange = viewingrange;  // save it from setaspect()
             const int16_t tang = (ud.screen_tilting) ? p->rotscrnang : 0;
 
             // To render a tilted screen in high quality, we need at least

polymer/eduke32/source/gamedef.c

@@ -5637,8 +5637,7 @@ repeatcase:
                 if (g_scriptVersion == 14)
                 {
                     g_spriteDeleteQueueSize = params[j++];
-                    if (g_spriteDeleteQueueSize > 1024) g_spriteDeleteQueueSize = 1024;
-                    else if (g_spriteDeleteQueueSize < 0) g_spriteDeleteQueueSize = 0;
+                    g_spriteDeleteQueueSize = clamp(g_spriteDeleteQueueSize, 0, 1024);
 
                     g_tripbombLaserMode = params[j++];
                 }

polymer/eduke32/source/gameexec.c

@@ -93,6 +93,7 @@ void VM_ScriptInfo(void)
     initprintf("g_errorLineNum: %d, g_tw: %d\n",g_errorLineNum,g_tw);
 }
 
+// May recurse, e.g. through EVENT_XXX -> ... -> EVENT_KILLIT
 int32_t VM_OnEvent(int32_t iEventID, int32_t iActor, int32_t iPlayer, int32_t lDist, int32_t iReturn)
 {
 #ifdef LUNATIC_ENABLE
@@ -428,12 +429,12 @@ int32_t G_GetAngleDelta(int32_t a,int32_t na)
     return (na-a);
 }
 
-GAMEEXEC_STATIC GAMEEXEC_INLINE void VM_AlterAng(int32_t a)
+GAMEEXEC_STATIC void VM_AlterAng(int32_t a)
 {
     int32_t ticselapsed = (vm.g_t[0])&31;
 
     const intptr_t *moveptr;
-    if ((unsigned)vm.g_t[1] >= (unsigned)g_scriptSize)
+    if ((unsigned)vm.g_t[1] >= (unsigned)g_scriptSize-1)
 
     {
         vm.g_t[1] = 0;
@@ -914,8 +915,7 @@ skip_check:
             vm.g_sp->hitag = *(script + vm.g_t[5] + 2);  // move flags
 
             vm.g_t[0] = vm.g_t[2] = vm.g_t[3] = 0; // count, actioncount... vm.g_t[3] = ??
-            if (A_CheckEnemySprite(vm.g_sp) && vm.g_sp->extra <= 0) // hack
-                continue;
+            if (!A_CheckEnemySprite(vm.g_sp) || vm.g_sp->extra > 0) // hack
                 if (vm.g_sp->hitag&random_angle)
                     vm.g_sp->ang = krand()&2047;
             continue;

polymer/eduke32/source/gamestructures.c

@@ -566,7 +566,8 @@ static void __fastcall VM_AccessUserdef(int32_t iSet, int32_t lLabelID, int32_t
     case USERDEFS_DETAIL:
         if (iSet)
         {
-            ud.detail = lValue;
+            // REMINDER: must implement "boolean" setters like this in Lunatic, too.
+            ud.detail = !!lValue;
             return;
         }
         Gv_SetVarX(lVar2, ud.detail);

polymer/eduke32/source/sector.c

@@ -44,7 +44,7 @@ int32_t A_CallSound(int32_t sn,int32_t whatsprite)
 
     for (SPRITES_OF_SECT(sn, i))
     {
-        if (PN == MUSICANDSFX && SLT < 1000)
+        if (PN == MUSICANDSFX && (unsigned)SLT < 1000)
         {
             if (whatsprite == -1) whatsprite = i;