Merge branch 'master' of https://github.com/rheit/zdoom

src/p_map.cpp

@@ -708,7 +708,7 @@ bool PIT_CheckLine(FMultiBlockLinesIterator &mit, FMultiBlockLinesIterator::Chec
 	{ // One sided line
 
 		// Needed for polyobject portals.
-		if (cres.line->isLinePortal())
+		if (cres.line->isLinePortal() && (cres.line->sidedef[0]->Flags & WALLF_POLYOBJ))
 		{
 			spechit_t spec;
 			spec.line = ld;

src/p_mobj.cpp

@@ -5129,11 +5129,13 @@ AActor *P_SpawnPuff (AActor *source, PClassActor *pufftype, const DVector3 &pos,
 // 
 //---------------------------------------------------------------------------
 
-void P_SpawnBlood (const DVector3 &pos, DAngle dir, int damage, AActor *originator)
+void P_SpawnBlood (const DVector3 &pos1, DAngle dir, int damage, AActor *originator)
 {
 	AActor *th;
 	PalEntry bloodcolor = originator->GetBloodColor();
 	PClassActor *bloodcls = originator->GetBloodType();
+	DVector3 pos = pos1;
+	pos.Z += pr_spawnblood.Random2() / 64.;
 
 	int bloodtype = cl_bloodtype;
 	
@@ -5142,8 +5144,7 @@ void P_SpawnBlood (const DVector3 &pos, DAngle dir, int damage, AActor *originat
 
 	if (bloodcls != NULL)
 	{
-		double z = pr_spawnblood.Random2 () / 64.;
-		th = Spawn(bloodcls, pos + DVector3(0, 0, z), NO_REPLACE); // GetBloodType already performed the replacement
+		th = Spawn(bloodcls, pos, NO_REPLACE); // GetBloodType already performed the replacement
 		th->Vel.Z = 2;
 		th->Angles.Yaw = dir;
 		// [NG] Applying PUFFGETSOWNER to the blood will make it target the owner

src/r_main.cpp

@@ -692,6 +692,8 @@ void R_EnterPortal (PortalDrawseg* pds, int depth)
 	fixed_t startx = viewx;
 	fixed_t starty = viewy;
 	fixed_t startz = viewz;
+	DVector3 savedpath[2] = { ViewPath[0], ViewPath[1] };
+	int savedvisibility = camera->renderflags & RF_INVISIBLE;
 
 	CurrentPortalUniq++;
 
@@ -738,10 +740,27 @@ void R_EnterPortal (PortalDrawseg* pds, int depth)
 		P_TranslatePortalXY(pds->src, view.X, view.Y);
 		P_TranslatePortalZ(pds->src, view.Z);
 		P_TranslatePortalAngle(pds->src, va);
+		P_TranslatePortalXY(pds->src, ViewPath[0].X, ViewPath[0].Y);
+		P_TranslatePortalXY(pds->src, ViewPath[1].X, ViewPath[1].Y);
 		viewx = FLOAT2FIXED(view.X);
 		viewy = FLOAT2FIXED(view.Y);
 		viewz = FLOAT2FIXED(view.Z);
 		viewangle = va.BAMs();
+
+		if (!r_showviewer)
+		{
+			double distp = (ViewPath[0] - ViewPath[1]).Length();
+			if (distp > EQUAL_EPSILON)
+			{
+				double dist1 = (view - ViewPath[0]).Length();
+				double dist2 = (view - ViewPath[1]).Length();
+
+				if (dist1 + dist2 < distp + 1)
+				{
+					camera->renderflags |= RF_INVISIBLE;
+				}
+			}
+		}
 	}
 	ViewAngle = AngleToFloat(viewangle);
 
@@ -783,6 +802,7 @@ void R_EnterPortal (PortalDrawseg* pds, int depth)
 	InSubsector = NULL;
 	R_RenderBSPNode (nodes + numnodes - 1);
 	R_3D_ResetClip(); // reset clips (floor/ceiling)
+	if (!savedvisibility) camera->renderflags &= ~RF_INVISIBLE;
 
 	PlaneCycles.Clock();
 	R_DrawPlanes ();
@@ -822,6 +842,8 @@ void R_EnterPortal (PortalDrawseg* pds, int depth)
 	viewx = startx;
 	viewy = starty;
 	viewz = startz;
+	ViewPath[0] = savedpath[0];
+	ViewPath[1] = savedpath[1];
 	ViewAngle = AngleToFloat(viewangle);
 }
 

src/r_utility.cpp

@@ -108,6 +108,7 @@ int 			viewwindowy;
 DVector3		ViewPos;
 DAngle			ViewAngle;
 DAngle			ViewPitch;
+DVector3		ViewPath[2];
 
 extern "C" 
 {
@@ -590,6 +591,8 @@ void R_InterpolateView (player_t *player, double Frac, InterpolationViewer *ivie
 
 	DAngle oviewangle = iview->Old.Angles.Yaw;
 	DAngle nviewangle = iview->New.Angles.Yaw;
+	if (!cl_capfps)
+	{
 		if ((iview->Old.Pos.X != iview->New.Pos.X || iview->Old.Pos.Y != iview->New.Pos.Y) && InterpolationPath.Size() > 0)
 		{
 			DVector3 view = iview->New.Pos;
@@ -615,7 +618,7 @@ void R_InterpolateView (player_t *player, double Frac, InterpolationViewer *ivie
 				{
 					DVector3a &start = i == 0 ? oldpos : InterpolationPath[i - 1];
 					DVector3a &end = InterpolationPath[i];
-				pathlen += (end.pos-start.pos).Length();
+					pathlen += (end.pos - start.pos).Length();
 					totalzdiff += start.pos.Z;
 					totaladiff += start.angle;
 				}
@@ -645,12 +648,21 @@ void R_InterpolateView (player_t *player, double Frac, InterpolationViewer *ivie
 					}
 				}
 				InterpolationPath.Pop();
+				ViewPath[0] = iview->Old.Pos;
 			}
 		}
 		else
 		{
 			DVector2 disp = Displacements.getOffset(oldgroup, newgroup);
 			ViewPos = iview->Old.Pos + (iview->New.Pos - iview->Old.Pos - disp) * Frac;
+			ViewPath[1] = iview->New.Pos;
+			ViewPath[0] = iview->Old.Pos;
+		}
+	}
+	else
+	{
+		ViewPos = iview->New.Pos;
+		ViewPath[0] = ViewPath[1] = iview->New.Pos;
 	}
 	if (player != NULL &&
 		!(player->cheats & CF_INTERPVIEW) &&

src/r_utility.h

@@ -15,6 +15,7 @@ extern DCanvas			*RenderTarget;
 extern DVector3			ViewPos;
 extern DAngle			ViewAngle;
 extern DAngle			ViewPitch;
+extern DVector3			ViewPath[2];
 
 extern fixed_t viewx, viewy, viewz;
 extern angle_t viewangle;

src/thingdef/thingdef_exp.h

@@ -997,6 +997,25 @@ public:
 	void SetFunction(VMScriptFunction *func) { MyFunction = func; }
 };
 
+//==========================================================================
+//
+//
+//
+//==========================================================================
+
+class FxNop : public FxExpression
+{
+public:
+	FxNop(const FScriptPosition &p)
+		: FxExpression(p)
+	{
+		isresolved = true;
+	}
+	ExpEmit Emit(VMFunctionBuilder *build)
+	{
+		return ExpEmit();
+	}
+};
 
 FxExpression *ParseExpression (FScanner &sc, PClassActor *cls, bool mustresolve = false);
 

src/thingdef/thingdef_expression.cpp

@@ -3648,6 +3648,7 @@ FxExpression *FxIfStatement::Resolve(FCompileContext &ctx)
 		FxExpression *e = result ? WhenTrue : WhenFalse;
 		delete (result ? WhenFalse : WhenTrue);
 		WhenTrue = WhenFalse = NULL;
+		if (e == NULL) e = new FxNop(ScriptPosition);	// create a dummy if this statement gets completely removed by optimizing out the constant parts.
 		delete this;
 		return e;
 	}