Slope types are now handled via the config

Build/Configurations/Srb2-21slopeszb.cfg

@@ -2072,24 +2072,32 @@ linedeftypes
 		{
 			title = "Slope Frontside Floor";
 			prefix = "(700)";
+			slope = true;
+			slopetype = 5;
 		}
 
 		701
 		{
 			title = "Slope Frontside Ceiling";
 			prefix = "(701)";
+			slope = true;
+			slopetype = 9;
 		}
 
 		702
 		{
 			title = "Slope Frontside Floor & Ceiling";
 			prefix = "(702)";
+			slope = true;
+			slopetype = 13;
 		}
 
 		703
 		{
 			title = "Slope Frontside Floor and Backside Ceiling";
 			prefix = "(703)";
+			slope = true;
+			slopetype = 37;
 		}
 
 		704
@@ -2097,6 +2105,8 @@ linedeftypes
 			title = "Slope Frontside Floor by 3 Tagged Vertex Things";
 			prefix = "(704)";
 			flags8192text = "[13] Use tag and offsets";
+			slope = true;
+			slopetype = 7;
 		}
 
 		705
@@ -2104,30 +2114,40 @@ linedeftypes
 			title = "Slope Frontside Ceiling by 3 Tagged Vertex Things";
 			prefix = "(705)";
 			flags8192text = "[13] Use tag and offsets";
+			slope = true;
+			slopetype = 11;
 		}
 
 		710
 		{
 			title = "Slope Backside Floor";
 			prefix = "(710)";
+			slope = true;
+			slopetype = 17;
 		}
 
 		711
 		{
 			title = "Slope Backside Ceiling";
 			prefix = "(711)";
+			slope = true;
+			slopetype = 33;
 		}
 
 		712
 		{
 			title = "Slope Backside Floor & Ceiling";
 			prefix = "(712)";
+			slope = true;
+			slopetype = 49;
 		}
 
 		713
 		{
 			title = "Slope Backside Floor & Frontside Ceiling";
 			prefix = "(713)";
+			slope = true;
+			slopetype = 25;
 		}
 
 		714
@@ -2135,6 +2155,8 @@ linedeftypes
 			title = "Slope Backside Floor by 3 Tagged Vertex Things";
 			prefix = "(714)";
 			flags8192text = "[13] Use tag and offsets";
+			slope = true;
+			slopetype = 19;
 		}
 
 		715
@@ -2142,24 +2164,32 @@ linedeftypes
 			title = "Slope Backside Ceiling by 3 Tagged Vertex Things";
 			prefix = "(715)";
 			flags8192text = "[13] Use tag and offsets";
+			slope = true;
+			slopetype = 35;
 		}
 
 		721
 		{
 			title = "Copy Frontside Ceiling Slope from Line Tag";
 			prefix = "(720)";
+			slope = true;
+			slopetype = 10;
 		}
 
 		720
 		{
 			title = "Copy Frontside Floor Slope from Line Tag";
 			prefix = "(721)";
+			slope = true;
+			slopetype = 6;
 		}
 
 		722
 		{
 			title = "Copy Frontside Floor & Ceiling Slope from Line Tag";
 			prefix = "(722)";
+			slope = true;
+			slopetype = 14;
 		}
 	}
 	

Source/Core/Config/LinedefActionInfo.cs

@@ -46,6 +46,8 @@ namespace CodeImp.DoomBuilder.Config
 		private readonly bool isknown;
 		private readonly bool requiresactivation; //mxd
         private IDictionary<string, string> flags;
+        private readonly bool slope;
+        private readonly int slopetype;
 
         #endregion
 
@@ -63,6 +65,11 @@ namespace CodeImp.DoomBuilder.Config
 		public bool RequiresActivation { get { return requiresactivation; } } //mxd
 		public ArgumentInfo[] Args { get { return args; } }
         public IDictionary<string, string> Flags { get { return flags; } }
+        public bool Slope { get { return slope; } }
+        public int SlopeType { get { return slopetype; } }
+        public bool IsRegularSlope { get { return slope && (slopetype & 0x3) == 1; } }
+        public bool IsCopySlope { get { return slope && (slopetype & 0x3) == 2; } }
+        public bool IsVertexSlope { get { return slope && (slopetype & 0x3) == 3; } }
 
         #endregion
 
@@ -88,6 +95,8 @@ namespace CodeImp.DoomBuilder.Config
 			this.title = this.prefix + " " + this.name;
 			this.title = this.title.Trim();
             this.flags = new Dictionary<string, string>(ac.Flags);
+            this.slope = cfg.ReadSetting(actionsetting + ".slope", false);
+            this.slopetype = cfg.ReadSetting(actionsetting + ".slopetype", 0);
             ReadLinedefSpecificFlags(cfg);
 
             // Read the args
@@ -107,6 +116,8 @@ namespace CodeImp.DoomBuilder.Config
 			this.requiresactivation = true; //mxd. Unused, set for consistency sake.
 			this.title = title;
             this.flags = new Dictionary<string, string>();
+            this.slope = false;
+            this.slopetype = 0;
             this.args = new ArgumentInfo[Linedef.NUM_ARGS];
 			for(int i = 0; i < Linedef.NUM_ARGS; i++)
 				this.args[i] = new ArgumentInfo(i);

Source/Core/IO/DoomMapSetIO.cs

@@ -43,9 +43,6 @@ namespace CodeImp.DoomBuilder.IO
         public DoomMapSetIO(WAD wad, MapManager manager) : base(wad, manager)
 		{
             threeDFloorTypes = new Dictionary<int, int[]>() { { 160, new int[3] { -1, -1, -1 } } };
-            slopeTypes = new Dictionary<int, int[]>() { { 181, new int[2] { -1, -1 } } };
-            slopeCopyTypes = new Dictionary<int, int[]>() { { 118, new int[2] { -1, -1 } } };
-            vertexSlopeTypes = new Dictionary<int, int[]>() { };
             translucentLineTypes = new Dictionary<int, float>() { { 208, -1.0f } };
             startTypes = new List<int>();
         }

Source/Core/IO/HexenMapSetIO.cs

@@ -43,9 +43,6 @@ namespace CodeImp.DoomBuilder.IO
         public HexenMapSetIO(WAD wad, MapManager manager) : base(wad, manager)
         {
             threeDFloorTypes = new Dictionary<int, int[]>() { { 160, new int[3] { -1, -1, -1 } } };
-            slopeTypes = new Dictionary<int, int[]>() { { 181, new int[2] { -1, -1 } } };
-            slopeCopyTypes = new Dictionary<int, int[]>() { { 118, new int[2] { -1, -1 } } };
-            vertexSlopeTypes = new Dictionary<int, int[]>() { };
             translucentLineTypes = new Dictionary<int, float>() { { 208, -1.0f } };
             startTypes = new List<int>();
         }

Source/Core/IO/IMapSetIO.cs

@@ -71,9 +71,6 @@ namespace CodeImp.DoomBuilder.IO
 		string GetElementName(MapElementType elementtype); //mxd
 		MapElementType GetElementType(string elementname); //mxd
         Dictionary<int, int[]> ThreeDFloorTypes { get; }
-        Dictionary<int,int[]> SlopeTypes { get; }
-        Dictionary<int, int[]> SlopeCopyTypes { get; }
-        Dictionary<int, int[]> VertexSlopeTypes { get; }
         Dictionary<int, float> TranslucentLineTypes { get; }
         int SlopeVertexType { get; }
         int Custom3DFloorType { get; }

Source/Core/IO/MapSetIO.cs

@@ -46,9 +46,6 @@ namespace CodeImp.DoomBuilder.IO
 		protected Dictionary<MapElementType, Dictionary<string, UniversalType>> uifields;
 
         protected Dictionary<int, int[]> threeDFloorTypes;
-        protected Dictionary<int, int[]> slopeTypes;
-        protected Dictionary<int, int[]> slopeCopyTypes;
-        protected Dictionary<int, int[]> vertexSlopeTypes;
         protected Dictionary<int, float> translucentLineTypes;
         protected List<int> startTypes;
         #endregion
@@ -98,9 +95,6 @@ namespace CodeImp.DoomBuilder.IO
 		public abstract int MinThingAngle { get; }
 		public abstract Dictionary<MapElementType, Dictionary<string, UniversalType>> UIFields { get; } //mxd
         public Dictionary<int, int[]> ThreeDFloorTypes { get { return threeDFloorTypes; } }
-        public Dictionary<int, int[]> SlopeTypes { get { return slopeTypes; } }
-        public Dictionary<int, int[]> SlopeCopyTypes { get { return slopeCopyTypes; } }
-        public Dictionary<int, int[]> VertexSlopeTypes { get { return vertexSlopeTypes; } }
         public Dictionary<int, float> TranslucentLineTypes { get { return translucentLineTypes; } }
         public abstract int SlopeVertexType { get; }
         public abstract int Custom3DFloorType { get; }

Source/Core/IO/SRB2MapSetIO.cs

@@ -102,35 +102,6 @@ namespace CodeImp.DoomBuilder.IO
                 { 259, new int[4] { 1, 0, 2, 0} }
             };
 
-            //Dictionary contents: floor, ceiling (0 = no slope, 1 = slope front, 2 = slope back)
-            slopeTypes = new Dictionary<int, int[]>() {
-                { 700, new int[2] { 1, 0 } },
-                { 701, new int[2] { 0, 1 } },
-                { 702, new int[2] { 1, 1 } },
-                { 703, new int[2] { 1, 2 } },
-                { 710, new int[2] { 2, 0 } },
-                { 711, new int[2] { 0, 2 } },
-                { 712, new int[2] { 2, 2 } },
-                { 713, new int[2] { 2, 1 } }
-            };
-
-            //Dictionary contents: floor, ceiling (0 = no slope, 1 = slope front, 2 = slope back)
-            slopeCopyTypes = new Dictionary<int, int[]>() {
-                { 720, new int[2] { 1, 0 } },
-                { 721, new int[2] { 0, 1 } },
-                { 722, new int[2] { 1, 1 } },
-            };
-
-            //Dictionary contents:
-            //1. 0 = slope front, 1 = slope back
-            //2. 0 = slope floor, 1 = slope ceiling
-            vertexSlopeTypes = new Dictionary<int, int[]>() {
-                { 704, new int[2] { 0, 0 } },
-                { 705, new int[2] { 0, 1 } },
-                { 714, new int[2] { 1, 0 } },
-                { 715, new int[2] { 1, 1 } },
-            };
-
             translucentLineTypes = new Dictionary<int, float>() {
                 { 900, 0.9f },
                 { 901, 0.8f },

Source/Core/IO/UniversalMapSetIO.cs

@@ -48,9 +48,6 @@ namespace CodeImp.DoomBuilder.IO
 			if((manager != null) && (manager.Config != null))
 			{
                 threeDFloorTypes = new Dictionary<int, int[]>() { { 160, new int[3] { -1, -1, -1 } } };
-                slopeTypes = new Dictionary<int, int[]>() { { 181, new int[2] { -1, -1 } } };
-                slopeCopyTypes = new Dictionary<int, int[]>() { { 118, new int[2] { -1, -1 } } };
-                vertexSlopeTypes = new Dictionary<int, int[]>() { };
                 translucentLineTypes = new Dictionary<int, float>() { { 208, -1.0f } };
                 startTypes = new List<int>();
 

Source/Core/Map/Linedef.cs

@@ -92,9 +92,9 @@ namespace CodeImp.DoomBuilder.Map
 		public int Action { get { return action; } set { BeforePropsChange(); action = value; UpdateColorPreset(); } }
 		public int Activate { get { return activate; } set { BeforePropsChange(); activate = value; UpdateColorPreset(); } }
         public bool Is3DFloor { get { return General.Map.FormatInterface.ThreeDFloorTypes.ContainsKey(Action); } }
-        public bool IsSlope { get { return General.Map.FormatInterface.SlopeTypes.ContainsKey(Action); } }
+        public bool IsRegularSlope { get { return (!General.Map.SRB2 && Action == 181) || General.Map.Config.GetLinedefActionInfo(Action).IsRegularSlope; } }
-        public bool IsSlopeCopy { get { return General.Map.FormatInterface.SlopeCopyTypes.ContainsKey(Action); } }
+        public bool IsCopySlope { get { return (!General.Map.SRB2 && Action == 118) || General.Map.Config.GetLinedefActionInfo(Action).IsCopySlope; } }
-        public bool IsVertexSlope { get { return General.Map.FormatInterface.VertexSlopeTypes.ContainsKey(Action); } }
+        public bool IsVertexSlope { get { return General.Map.Config.GetLinedefActionInfo(Action).IsVertexSlope; } }
         public bool IsTranslucentLine { get { return General.Map.FormatInterface.TranslucentLineTypes.ContainsKey(Action); } }
         public bool IsColormap { get { return Action == General.Map.FormatInterface.ColormapType; } }
         public bool IsFlatAlignment { get { return Action == General.Map.FormatInterface.FlatAlignmentType; } }
@@ -861,20 +861,42 @@ namespace CodeImp.DoomBuilder.Map
         //Set slope arguments for SRB2-style slopes. See http://zdoom.org/wiki/Plane_Align.
         public void SetSlopeArgs()
         {
-            int[] settings = General.Map.FormatInterface.SlopeTypes[Action];
+            //0 = set from args, 1 = normal, 2 = copy, 3 = vertices, +4 = frontside floor, +8 = frontside ceiling, +16 = backside floor, +32 = backside ceiling
-            Args[0] = settings[0]; //floor
+            int slopevalue = General.Map.Config.GetLinedefActionInfo(Action).SlopeType;
-            Args[1] = settings[1]; //ceiling
+            bool frontfloor = (slopevalue & 0x4) == 0x4;
+            bool frontceiling = (slopevalue & 0x8) == 0x8;
+            bool backfloor = (slopevalue & 0x10) == 0x10;
+            bool backceiling = (slopevalue & 0x20) == 0x20;
+            Args[0] = frontfloor ? 1 : (backfloor ? 2 : 0); //floor
+            Args[1] = frontceiling ? 1 : (backceiling ? 2 : 0); //ceiling
             Args[2] = 0; //lineid (irrelevant for SRB2)
         }
 
-        //Finds the appropriate slope type for the current arguments. Sadly there's no better way to do this generically than to iterate over all types. Oh well.
+        //Finds the appropriate slope type for the current arguments. Sadly there's no better way to do this generically than to iterate over all linedef types. Oh well.
         public void SetSlopeTypeFromArgs()
         {
-            foreach (KeyValuePair<int, int[]> type in General.Map.FormatInterface.SlopeTypes)
+            if (!General.Map.SRB2) Action = 181;
+            foreach (KeyValuePair<int, LinedefActionInfo> type in General.Map.Config.LinedefActions)
             {
-                if ((type.Value[0] == Args[0] && type.Value[1] == Args[1]) || (type.Value[0] == -1 && type.Value[1] == -1)) {
+                if (!type.Value.IsRegularSlope) continue;
-                        Action = type.Key;
+                //0 = set from args, 1 = normal, 2 = copy, 3 = vertices, +4 = frontside floor, +8 = frontside ceiling, +16 = backside floor, +32 = backside ceiling
-                        return;
+                int slopevalue = type.Value.SlopeType;
+                if (slopevalue == 0)
+                {
+                    Action = type.Key;
+                    return;
+                }
+                bool frontfloor = (slopevalue & 0x4) == 0x4;
+                bool frontceiling = (slopevalue & 0x8) == 0x8;
+                bool backfloor = (slopevalue & 0x10) == 0x10;
+                bool backceiling = (slopevalue & 0x20) == 0x20;
+                int args0 = frontfloor ? 1 : (backfloor ? 2 : 0);
+                int args1 = frontceiling ? 1 : (backceiling ? 2 : 0);
+
+                if (Args[0] == args0 && Args[1] == args1)
+                {
+                    Action = type.Key;
+                    return;
                 }
             }
         }
@@ -882,11 +904,16 @@ namespace CodeImp.DoomBuilder.Map
         //Set slope arguments for SRB2-style copy slopes. See http://zdoom.org/wiki/Plane_Copy.
         public void SetSlopeCopyArgs()
         {
-            int[] settings = General.Map.FormatInterface.SlopeCopyTypes[Action];
+            //0 = set from args, 1 = normal, 2 = copy, 3 = vertices, +4 = frontside floor, +8 = frontside ceiling, +16 = backside floor, +32 = backside ceiling
-            if (settings[0] == 1) Args[0] = Tag; //front floor
+            int slopevalue = General.Map.Config.GetLinedefActionInfo(Action).SlopeType;
-            if (settings[0] == 2) Args[2] = Tag; //back floor
+            bool frontfloor = (slopevalue & 0x4) == 0x4;
-            if (settings[1] == 1) Args[1] = Tag; //front ceiling
+            bool frontceiling = (slopevalue & 0x8) == 0x8;
-            if (settings[1] == 2) Args[3] = Tag; //back ceiling
+            bool backfloor = (slopevalue & 0x10) == 0x10;
+            bool backceiling = (slopevalue & 0x20) == 0x20;
+            if (frontfloor) Args[0] = Tag; //front floor
+            if (frontceiling) Args[1] = Tag; //front ceiling
+            if (backfloor) Args[2] = Tag; //back floor
+            if (backceiling) Args[3] = Tag; //back ceiling
             Args[4] = 0; //share (irrelevant for SRB2)
         }
 
@@ -895,9 +922,14 @@ namespace CodeImp.DoomBuilder.Map
         //Args[1]: 0 = slope floor, 1 = slope ceiling
         public void SetVertexSlopeArgs()
         {
-            int[] settings = General.Map.FormatInterface.VertexSlopeTypes[Action];
+            //0 = set from args, 1 = normal, 2 = copy, 3 = vertices, +4 = frontside floor, +8 = frontside ceiling, +16 = backside floor, +32 = backside ceiling
-            Args[0] = settings[0];
+            int slopevalue = General.Map.Config.GetLinedefActionInfo(Action).SlopeType;
-            Args[1] = settings[1];
+            bool frontfloor = (slopevalue & 0x4) == 0x4;
+            bool frontceiling = (slopevalue & 0x8) == 0x8;
+            bool backfloor = (slopevalue & 0x10) == 0x10;
+            bool backceiling = (slopevalue & 0x20) == 0x20;
+            Args[0] = (frontfloor || frontceiling) ? 0 : 1;
+            Args[1] = (frontfloor || backfloor) ? 0 : 1;
         }
 
         //Set translucent line arguments for SRB2-style translucent walls. See http://zdoom.org/wiki/TranslucentLine.

Source/Core/Map/Sector.cs

@@ -671,7 +671,7 @@ namespace CodeImp.DoomBuilder.Map
 			{
 				// Carbon copy of EffectLineSlope class here...
                 // MascaraSnake: Handle slopes
-				if(side.Line.IsSlope && ((side.Line.Args[0] == 1 && side == side.Line.Front) || side.Line.Args[0] == 2) && side.Other != null)
+				if(side.Line.IsRegularSlope && ((side.Line.Args[0] == 1 && side == side.Line.Front) || side.Line.Args[0] == 2) && side.Other != null)
 				{
 					Linedef l = side.Line;
 					
@@ -752,7 +752,7 @@ namespace CodeImp.DoomBuilder.Map
 			{
 				// Carbon copy of EffectLineSlope class here...
                 // MascaraSnake: Handle slopes
-				if(side.Line.IsSlope && ((side.Line.Args[1] == 1 && side == side.Line.Front) || side.Line.Args[1] == 2) && side.Other != null) 
+				if(side.Line.IsRegularSlope && ((side.Line.Args[1] == 1 && side == side.Line.Front) || side.Line.Args[1] == 2) && side.Other != null) 
 				{
 					Linedef l = side.Line;
 

Source/Plugins/BuilderModes/ErrorChecks/CheckMissingTextures.cs

@@ -60,7 +60,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 				if(sd.HighRequired() && sd.HighTexture == "-")
 				{
                     // MascaraSnake: Slope handling
-					if(sd.Line.IsSlope && sd.Line.Args[1] > 0) continue; //mxd. Ceiling slopes doesn't require upper texture
+					if(sd.Line.IsRegularSlope && sd.Line.Args[1] > 0) continue; //mxd. Ceiling slopes doesn't require upper texture
 					if(sd.Other != null && sd.Other.Sector.CeilTexture != General.Map.Config.SkyFlatName)
 					{
 						SubmitResult(new ResultMissingTexture(sd, SidedefPart.Upper));
@@ -79,7 +79,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 				if(sd.LowRequired() && sd.LowTexture == "-")
 				{
                     // MascaraSnake: Slope handling
-                    if (sd.Line.IsSlope && sd.Line.Args[0] > 0) continue; //mxd. Floor slopes doesn't require lower texture
+                    if (sd.Line.IsRegularSlope && sd.Line.Args[0] > 0) continue; //mxd. Floor slopes doesn't require lower texture
 					if(sd.Other != null && sd.Other.Sector.FloorTexture != General.Map.Config.SkyFlatName)
 					{
 						SubmitResult(new ResultMissingTexture(sd, SidedefPart.Lower));

Source/Plugins/BuilderModes/VisualModes/BaseVisualMode.cs

@@ -902,7 +902,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
             {
                 // MascaraSnake: Slope handling
                 // ========== Plane Align (see http://zdoom.org/wiki/Plane_Align) ==========
-                if (l.IsSlope)
+                if (l.IsRegularSlope)
                 {
                     if (!General.Map.FormatInterface.HasLinedefParameters) l.SetSlopeArgs();
                     if (((l.Args[0] == 1) || (l.Args[1] == 1)) && (l.Front != null))
@@ -919,7 +919,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 
                 // MascaraSnake: Slope handling
                 // ========== Plane Copy (mxd) (see http://zdoom.org/wiki/Plane_Copy) ==========
-                if (l.IsSlopeCopy)
+                if (l.IsCopySlope)
                 {
                     if (!General.Map.FormatInterface.HasLinedefParameters) l.SetSlopeCopyArgs();
                     //check the flags...
@@ -3748,12 +3748,12 @@ namespace CodeImp.DoomBuilder.BuilderModes
 				if(vg.GeometryType == VisualGeometryType.WALL_LOWER)
 				{
                     // MascaraSnake: Slope handling
-					if(vg.Sidedef.Line.Action == 0 || (vg.Sidedef.Line.IsSlope && vg.Sidedef.Line.Args[0] == 0))
+					if(vg.Sidedef.Line.Action == 0 || (vg.Sidedef.Line.IsRegularSlope && vg.Sidedef.Line.Args[0] == 0))
 					{
 						//check if the sector already has floor slopes
 						foreach(Sidedef side in vg.Sidedef.Sector.Sidedefs) 
 						{
-							if(side == vg.Sidedef || !side.Line.IsSlope) continue;
+							if(side == vg.Sidedef || !side.Line.IsRegularSlope) continue;
 
 							int arg = (side == side.Line.Front ? 1 : 2);
 
@@ -3778,12 +3778,12 @@ namespace CodeImp.DoomBuilder.BuilderModes
 				else if(vg.GeometryType == VisualGeometryType.WALL_UPPER) 
 				{
                     // MascaraSnake: Slope handling
-                    if (vg.Sidedef.Line.Action == 0 || (vg.Sidedef.Line.IsSlope && vg.Sidedef.Line.Args[1] == 0)) 
+                    if (vg.Sidedef.Line.Action == 0 || (vg.Sidedef.Line.IsRegularSlope && vg.Sidedef.Line.Args[1] == 0)) 
 					{
 						//check if the sector already has ceiling slopes
 						foreach(Sidedef side in vg.Sidedef.Sector.Sidedefs) 
 						{
-                            if (side == vg.Sidedef || !side.Line.IsSlope) continue;
+                            if (side == vg.Sidedef || !side.Line.IsRegularSlope) continue;
 
 							int arg = (side == side.Line.Front ? 1 : 2);
 
@@ -3811,7 +3811,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 					foreach(Sidedef side in vg.Sector.Sector.Sidedefs) 
 					{
                         // MascaraSnake: Slope handling
-                        if (!side.Line.IsSlope)	continue;
+                        if (!side.Line.IsRegularSlope)	continue;
 
 						int arg = (side == side.Line.Front ? 1 : 2);
 
@@ -3835,7 +3835,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 					foreach(Sidedef side in vg.Sector.Sector.Sidedefs) 
 					{
                         // MascaraSnake: Slope handling
-                        if (!side.Line.IsSlope)	continue;
+                        if (!side.Line.IsRegularSlope)	continue;
 
 						int arg = (side == side.Line.Front ? 1 : 2);
 

Source/Plugins/BuilderModes/VisualModes/VisualCeiling.cs

@@ -577,7 +577,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 				foreach(Sidedef side in Sector.Sector.Sidedefs) 
 				{
                     // MascaraSnake: Slope handling
-					if(side.Line.IsSlope) 
+					if(side.Line.IsRegularSlope) 
 					{
 						if(side.Line.Args[1] == 1 && side.Line.Front != null && side.Line.Front == side) 
 						{

Source/Plugins/BuilderModes/VisualModes/VisualFloor.cs

@@ -543,7 +543,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 				foreach(Sidedef side in Sector.Sector.Sidedefs) 
 				{
                     // MascaraSnake: Slope handling
-					if(side.Line.IsSlope) 
+					if(side.Line.IsRegularSlope) 
 					{
 						if(side.Line.Args[0] == 1 && side.Line.Front != null && side.Line.Front == side) 
 						{