Draw Curve Mode, Draw Ellipse Mode, Draw Rectangle Mode: added option to place things at the designated vertex positions instead of drawing geometry (#956)

Source/Plugins/BuilderModes/ClassicModes/DrawCurveMode.cs

@@ -101,7 +101,9 @@ namespace CodeImp.DoomBuilder.BuilderModes
 					curve = CurveTools.CurveThroughPoints(verts, 0.5f, 0.75f, segmentlength);
 
 					// Render lines
-					for(int i = 1; i < curve.Shape.Count; i++) 
+					if (!placethingsatvertices)
+					{
+						for (int i = 1; i < curve.Shape.Count; i++)
 						{
 							// Determine line color
 							PixelColor c = snaptonearest ? stitchcolor : losecolor;
@@ -109,6 +111,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 							// Render line
 							renderer.RenderLine(curve.Shape[i - 1], curve.Shape[i], LINE_THICKNESS, c, true);
 						}
+					}
 
 					//render "inactive" vertices
 					for(int i = 1; i < curve.Shape.Count - 1; i++) 
@@ -237,7 +240,27 @@ namespace CodeImp.DoomBuilder.BuilderModes
 				}
 
 				// Make the drawing
-				if(Tools.DrawLines(verts, true, BuilderPlug.Me.AutoAlignTextureOffsetsOnCreate)) //mxd
+				if (placethingsatvertices)
+				{
+					List<Vector2D> points = new List<Vector2D>();
+					for (int i = 0; i < verts.Count; i++) 
+						if (!points.Contains(verts[i].pos)) points.Add(verts[i].pos);
+
+					PlaceThingsAtPositions(points);
+
+					// Snap to map format accuracy
+					General.Map.Map.SnapAllToAccuracy();
+
+					// Clear selection
+					General.Map.Map.ClearAllSelected();
+
+					// Update cached values
+					General.Map.Map.Update();
+
+					// Map is changed
+					General.Map.IsChanged = true;
+				}
+				else if (Tools.DrawLines(verts, true, BuilderPlug.Me.AutoAlignTextureOffsetsOnCreate)) //mxd
 				{
 					// Snap to map format accuracy
 					General.Map.Map.SnapAllToAccuracy();
@@ -249,11 +272,11 @@ namespace CodeImp.DoomBuilder.BuilderModes
 					General.Map.Map.Update();
 
 					//mxd. Outer sectors may require some splittin...
-					if(General.Settings.SplitJoinedSectors) Tools.SplitOuterSectors(General.Map.Map.GetMarkedLinedefs(true));
+					if (General.Settings.SplitJoinedSectors) Tools.SplitOuterSectors(General.Map.Map.GetMarkedLinedefs(true));
 
 					// Edit new sectors?
 					List<Sector> newsectors = General.Map.Map.GetMarkedSectors(true);
-					if(BuilderPlug.Me.EditNewSector && (newsectors.Count > 0))
+					if (BuilderPlug.Me.EditNewSector && (newsectors.Count > 0))
 						General.Interface.ShowEditSectors(newsectors);
 
 					// Update the used textures
@@ -320,10 +343,12 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			panel.OnValueChanged += OptionsPanelOnValueChanged;
 			panel.OnContinuousDrawingChanged += OnContinuousDrawingChanged;
 			panel.OnAutoCloseDrawingChanged += OnAutoCloseDrawingChanged;
+			panel.OnPlaceThingsAtVerticesChanged += OnPlaceThingsAtVerticesChanged;
 
 			// Needs to be set after adding the events...
 			panel.ContinuousDrawing = General.Settings.ReadPluginSetting("drawcurvemode.continuousdrawing", false);
-			panel.AutoCloseDrawing = General.Settings.ReadPluginSetting("drawlinesmode.autoclosedrawing", false);
+			panel.AutoCloseDrawing = General.Settings.ReadPluginSetting("drawcurvemode.autoclosedrawing", false);
+			panel.PlaceThingsAtVertices = General.Settings.ReadPluginSetting("drawcurvemode.placethingsatvertices", false);
 		}
 
 		protected override void AddInterface()
@@ -336,7 +361,8 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			// Store settings
 			General.Settings.WritePluginSetting("drawcurvemode.segmentlength", segmentlength);
 			General.Settings.WritePluginSetting("drawcurvemode.continuousdrawing", panel.ContinuousDrawing);
-			General.Settings.WritePluginSetting("drawlinesmode.autoclosedrawing", panel.AutoCloseDrawing);
+			General.Settings.WritePluginSetting("drawcurvemode.autoclosedrawing", panel.AutoCloseDrawing);
+			General.Settings.WritePluginSetting("drawcurvemode.placethingsatvertices", panel.PlaceThingsAtVertices);
 
 			// Remove the buttons
 			panel.Unregister();

Source/Plugins/BuilderModes/ClassicModes/DrawEllipseMode.cs

@@ -69,11 +69,13 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			panel.OnContinuousDrawingChanged += OnContinuousDrawingChanged;
 			panel.OnShowGuidelinesChanged += OnShowGuidelinesChanged;
 			panel.OnRadialDrawingChanged += OnRadialDrawingChanged;
+			panel.OnPlaceThingsAtVerticesChanged += OnPlaceThingsAtVerticesChanged;
 
 			// Needs to be set after adding the OnContinuousDrawingChanged event...
 			panel.ContinuousDrawing = General.Settings.ReadPluginSetting("drawellipsemode.continuousdrawing", false);
 			panel.ShowGuidelines = General.Settings.ReadPluginSetting("drawellipsemode.showguidelines", false);
 			panel.RadialDrawing = General.Settings.ReadPluginSetting("drawellipsemode.radialdrawing", false);
+			panel.PlaceThingsAtVertices = General.Settings.ReadPluginSetting("drawellipsemode.placethingsatvertices", false);
 		}
 
 		override protected void AddInterface() 
@@ -90,6 +92,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			General.Settings.WritePluginSetting("drawellipsemode.continuousdrawing", panel.ContinuousDrawing);
 			General.Settings.WritePluginSetting("drawellipsemode.showguidelines", panel.ShowGuidelines);
 			General.Settings.WritePluginSetting("drawellipsemode.radialdrawing", panel.RadialDrawing);
+			General.Settings.WritePluginSetting("drawellipsemode.placethingsatvertices", panel.PlaceThingsAtVertices);
 
 
 			// Remove the buttons

Source/Plugins/BuilderModes/ClassicModes/DrawGeometryMode.cs

@@ -65,6 +65,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 		protected bool autoclosedrawing;  //mxd. Finish drawing when new points and existing geometry form a closed shape
 		protected bool drawingautoclosed; //mxd
 		protected bool showguidelines; //mxd
+		protected bool placethingsatvertices;
 
 		//mxd. Map area bounds
 		private Line2D top, bottom, left, right;
@@ -952,6 +953,12 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			General.Interface.RedrawDisplay();
 		}
 	
+		protected void OnPlaceThingsAtVerticesChanged(object value, EventArgs e)
+		{
+			placethingsatvertices = (bool)value;
+			General.Interface.RedrawDisplay();
+		}
+
 		#endregion
 
 		#region ================== Actions

Source/Plugins/BuilderModes/ClassicModes/DrawRectangleMode.cs

@@ -104,11 +104,13 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			panel.OnContinuousDrawingChanged += OnContinuousDrawingChanged;
 			panel.OnShowGuidelinesChanged += OnShowGuidelinesChanged;
 			panel.OnRadialDrawingChanged += OnRadialDrawingChanged;
+			panel.OnPlaceThingsAtVerticesChanged += OnPlaceThingsAtVerticesChanged;
 
 			// Needs to be set after adding the OnContinuousDrawingChanged event...
 			panel.ContinuousDrawing = General.Settings.ReadPluginSetting("drawrectanglemode.continuousdrawing", false);
 			panel.ShowGuidelines = General.Settings.ReadPluginSetting("drawrectanglemode.showguidelines", false);
 			panel.RadialDrawing = General.Settings.ReadPluginSetting("drawrectanglemode.radialdrawing", false);
+			panel.PlaceThingsAtVertices = General.Settings.ReadPluginSetting("drawrectanglemode.placethingsatvertices", false);
 		}
 
 		protected override void AddInterface() 
@@ -124,6 +126,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			General.Settings.WritePluginSetting("drawrectanglemode.continuousdrawing", panel.ContinuousDrawing);
 			General.Settings.WritePluginSetting("drawrectanglemode.showguidelines", panel.ShowGuidelines);
 			General.Settings.WritePluginSetting("drawrectanglemode.radialdrawing", panel.RadialDrawing);
+			General.Settings.WritePluginSetting("drawrectanglemode.placethingsatvertices", panel.PlaceThingsAtVertices);
 
 			// Remove the buttons
 			panel.Unregister();
@@ -173,8 +176,11 @@ namespace CodeImp.DoomBuilder.BuilderModes
 						RenderGuidelines(startrotated, endrotated, General.Colors.Guideline.WithAlpha(80), -General.Map.Grid.GridRotate);
 
 					//render shape
-					for(int i = 1; i < shape.Length; i++)
+					if (!placethingsatvertices)
+					{
+						for (int i = 1; i < shape.Length; i++)
 							renderer.RenderLine(shape[i - 1], shape[i], LINE_THICKNESS, color, true);
+					}
 
 					//vertices
 					for(int i = 0; i < shape.Length; i++)
@@ -440,7 +446,27 @@ namespace CodeImp.DoomBuilder.BuilderModes
 				General.Interface.DisplayStatus(StatusType.Action, "Created " + a + word + " " + shapename + ".");
 
 				// Make the drawing
-				if(Tools.DrawLines(points, true, BuilderPlug.Me.AutoAlignTextureOffsetsOnCreate))
+				if (placethingsatvertices) 
+				{
+					List<Vector2D> verts = new List<Vector2D>();
+					for (int i = 0; i < points.Count; i++)
+						if (!verts.Contains(new Vector2D(points[i].pos.x, points[i].pos.y))) verts.Add(new Vector2D(points[i].pos.x, points[i].pos.y));
+
+					PlaceThingsAtPositions(verts);
+
+					// Snap to map format accuracy
+					General.Map.Map.SnapAllToAccuracy();
+
+					// Clear selection
+					General.Map.Map.ClearAllSelected();
+
+					// Update cached values
+					General.Map.Map.Update();
+
+					// Map is changed
+					General.Map.IsChanged = true;
+				}
+				else if (Tools.DrawLines(points, true, BuilderPlug.Me.AutoAlignTextureOffsetsOnCreate))
 				{
 					// Snap to map format accuracy
 					General.Map.Map.SnapAllToAccuracy();

Source/Plugins/BuilderModes/Interface/DrawCurveOptionsPanel.Designer.cs

@@ -31,6 +31,7 @@
 			this.toolstrip = new System.Windows.Forms.ToolStrip();
 			this.continuousdrawing = new System.Windows.Forms.ToolStripButton();
 			this.autoclosedrawing = new System.Windows.Forms.ToolStripButton();
+			this.placethingsatvertices = new System.Windows.Forms.ToolStripButton();
 			this.toolStripSeparator1 = new System.Windows.Forms.ToolStripSeparator();
 			this.seglabel = new System.Windows.Forms.ToolStripLabel();
 			this.seglen = new CodeImp.DoomBuilder.Controls.ToolStripNumericUpDown();
@@ -43,6 +44,7 @@
 			this.toolstrip.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
             this.continuousdrawing,
             this.autoclosedrawing,
+			this.placethingsatvertices,
 			this.toolStripSeparator1,
             this.seglabel,
             this.seglen,
@@ -74,6 +76,16 @@
 			this.autoclosedrawing.Text = "Auto-close drawing";
 			this.autoclosedrawing.CheckedChanged += new System.EventHandler(this.autoclosedrawing_CheckedChanged);
 			// 
+			// placethingsatvertices
+			// 
+			this.placethingsatvertices.CheckOnClick = true;
+			this.placethingsatvertices.Image = global::CodeImp.DoomBuilder.BuilderModes.Properties.Resources.PlaceThings;
+			this.placethingsatvertices.ImageTransparentColor = System.Drawing.Color.Magenta;
+			this.placethingsatvertices.Name = "placethingsatvertices";
+			this.placethingsatvertices.Size = new System.Drawing.Size(135, 22);
+			this.placethingsatvertices.Text = "Place things";
+			this.placethingsatvertices.CheckedChanged += new System.EventHandler(this.placethingsatvertices_CheckedChanged);
+			// 
 			// toolStripSeparator1
 			// 
 			this.toolStripSeparator1.Name = "toolStripSeparator1";
@@ -142,6 +154,6 @@
 		private System.Windows.Forms.ToolStripButton continuousdrawing;
 		private System.Windows.Forms.ToolStripSeparator toolStripSeparator1;
 		private System.Windows.Forms.ToolStripButton autoclosedrawing;
-
+		private System.Windows.Forms.ToolStripButton placethingsatvertices;
 	}
 }

Source/Plugins/BuilderModes/Interface/DrawCurveOptionsPanel.cs

@@ -8,11 +8,13 @@ namespace CodeImp.DoomBuilder.BuilderModes
 		public event EventHandler OnValueChanged;
 		public event EventHandler OnContinuousDrawingChanged;
 		public event EventHandler OnAutoCloseDrawingChanged;
+		public event EventHandler OnPlaceThingsAtVerticesChanged;
 		private bool blockevents;
 
 		public int SegmentLength { get { return (int)seglen.Value; } set { blockevents = true; seglen.Value = value; blockevents = false; } }
 		public bool ContinuousDrawing { get { return continuousdrawing.Checked; } set { continuousdrawing.Checked = value; } }
 		public bool AutoCloseDrawing { get { return autoclosedrawing.Checked; } set { autoclosedrawing.Checked = value; } }
+		public bool PlaceThingsAtVertices { get { return placethingsatvertices.Checked; } set { placethingsatvertices.Checked = value; } }
 
 		public DrawCurveOptionsPanel(int minLength, int maxLength) 
 		{
@@ -29,6 +31,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			General.Interface.BeginToolbarUpdate();
 			General.Interface.AddButton(continuousdrawing);
 			General.Interface.AddButton(autoclosedrawing);
+			General.Interface.AddButton(placethingsatvertices);
 			General.Interface.AddButton(toolStripSeparator1);
 			General.Interface.AddButton(seglabel);
 			General.Interface.AddButton(seglen);
@@ -43,6 +46,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			General.Interface.RemoveButton(seglen);
 			General.Interface.RemoveButton(seglabel);
 			General.Interface.RemoveButton(toolStripSeparator1);
+			General.Interface.RemoveButton(placethingsatvertices);
 			General.Interface.RemoveButton(autoclosedrawing);
 			General.Interface.RemoveButton(continuousdrawing);
 			General.Interface.EndToolbarUpdate();
@@ -67,5 +71,10 @@ namespace CodeImp.DoomBuilder.BuilderModes
 		{
 			if(OnAutoCloseDrawingChanged != null) OnAutoCloseDrawingChanged(autoclosedrawing.Checked, EventArgs.Empty);
 		}
+
+		private void placethingsatvertices_CheckedChanged(object sender, EventArgs e)
+		{
+			if (OnPlaceThingsAtVerticesChanged != null) OnPlaceThingsAtVerticesChanged(placethingsatvertices.Checked, EventArgs.Empty);
+		}
 	}
 }

Source/Plugins/BuilderModes/Interface/DrawEllipseOptionsPanel.Designer.cs

@@ -31,6 +31,7 @@
 			this.toolStrip1 = new System.Windows.Forms.ToolStrip();
 			this.continuousdrawing = new System.Windows.Forms.ToolStripButton();
 			this.radialdrawing = new System.Windows.Forms.ToolStripButton();
+			this.placethingsatvertices = new System.Windows.Forms.ToolStripButton();
 			this.toolStripSeparator1 = new System.Windows.Forms.ToolStripSeparator();
 			this.subdivslabel = new System.Windows.Forms.ToolStripLabel();
 			this.subdivs = new CodeImp.DoomBuilder.Controls.ToolStripNumericUpDown();
@@ -49,6 +50,7 @@
             this.continuousdrawing,
             this.showguidelines,
             this.radialdrawing,
+			this.placethingsatvertices,
 			this.toolStripSeparator1,
             this.subdivslabel,
             this.subdivs,
@@ -73,6 +75,16 @@
 			this.continuousdrawing.Text = "Continuous drawing";
 			this.continuousdrawing.CheckedChanged += new System.EventHandler(this.continuousdrawing_CheckedChanged);
 			// 
+			// placethingsatvertices
+			// 
+			this.placethingsatvertices.CheckOnClick = true;
+			this.placethingsatvertices.Image = global::CodeImp.DoomBuilder.BuilderModes.Properties.Resources.PlaceThings;
+			this.placethingsatvertices.ImageTransparentColor = System.Drawing.Color.Magenta;
+			this.placethingsatvertices.Name = "placethingsatvertices";
+			this.placethingsatvertices.Size = new System.Drawing.Size(135, 22);
+			this.placethingsatvertices.Text = "Place things";
+			this.placethingsatvertices.CheckedChanged += new System.EventHandler(this.placethingsatvertices_CheckedChanged);
+			// 
 			// toolStripSeparator1
 			// 
 			this.toolStripSeparator1.Name = "toolStripSeparator1";
@@ -225,5 +237,6 @@
 		private System.Windows.Forms.ToolStripLabel anglelabel;
 		private CodeImp.DoomBuilder.Controls.ToolStripNumericUpDown angle;
 		private System.Windows.Forms.ToolStripButton showguidelines;
+		private System.Windows.Forms.ToolStripButton placethingsatvertices;
 	}
 }

Source/Plugins/BuilderModes/Interface/DrawEllipseOptionsPanel.cs

@@ -9,6 +9,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 		public event EventHandler OnContinuousDrawingChanged;
 		public event EventHandler OnShowGuidelinesChanged;
 		public event EventHandler OnRadialDrawingChanged;
+		public event EventHandler OnPlaceThingsAtVerticesChanged;
 
 		private bool blockevents;
 
@@ -22,6 +23,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 		public bool ContinuousDrawing { get { return continuousdrawing.Checked; } set { continuousdrawing.Checked = value; } }
 		public bool ShowGuidelines { get { return showguidelines.Checked; } set { showguidelines.Checked = value; } }
 		public bool RadialDrawing { get { return radialdrawing.Checked; } set { radialdrawing.Checked = value; } }
+		public bool PlaceThingsAtVertices { get { return placethingsatvertices.Checked; } set { placethingsatvertices.Checked = value; } }
 
 		public DrawEllipseOptionsPanel() 
 		{
@@ -38,6 +40,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			General.Interface.AddButton(continuousdrawing);
 			General.Interface.AddButton(showguidelines);
 			General.Interface.AddButton(radialdrawing);
+			General.Interface.AddButton(placethingsatvertices);
 			General.Interface.AddButton(toolStripSeparator1);
 			General.Interface.AddButton(subdivslabel);
 			General.Interface.AddButton(subdivs);
@@ -63,6 +66,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			General.Interface.RemoveButton(showguidelines);
 			General.Interface.RemoveButton(continuousdrawing);
 			General.Interface.RemoveButton(radialdrawing);
+			General.Interface.RemoveButton(placethingsatvertices);
 			General.Interface.EndToolbarUpdate();
 		}
 
@@ -98,5 +102,10 @@ namespace CodeImp.DoomBuilder.BuilderModes
 		{
 			if(OnRadialDrawingChanged != null) OnRadialDrawingChanged(radialdrawing.Checked, EventArgs.Empty);
 		}
+
+		private void placethingsatvertices_CheckedChanged(object sender, EventArgs e)
+		{
+			if (OnPlaceThingsAtVerticesChanged != null) OnPlaceThingsAtVerticesChanged(placethingsatvertices.Checked, EventArgs.Empty);
+		}
 	}
 }

Source/Plugins/BuilderModes/Interface/DrawRectangleOptionsPanel.Designer.cs

@@ -32,6 +32,7 @@
 			this.continuousdrawing = new System.Windows.Forms.ToolStripButton();
 			this.showguidelines = new System.Windows.Forms.ToolStripButton();
 			this.radialdrawing = new System.Windows.Forms.ToolStripButton();
+			this.placethingsatvertices = new System.Windows.Forms.ToolStripButton();
 			this.toolStripSeparator1 = new System.Windows.Forms.ToolStripSeparator();
 			this.radiuslabel = new System.Windows.Forms.ToolStripLabel();
 			this.radius = new CodeImp.DoomBuilder.Controls.ToolStripNumericUpDown();
@@ -47,6 +48,7 @@
             this.continuousdrawing,
             this.showguidelines,
             this.radialdrawing,
+			this.placethingsatvertices,
             this.toolStripSeparator1,
             this.radiuslabel,
             this.radius,
@@ -69,6 +71,16 @@
 			this.continuousdrawing.Text = "Continuous drawing";
 			this.continuousdrawing.CheckedChanged += new System.EventHandler(this.continuousdrawing_CheckedChanged);
 			// 
+			// placethingsatvertices
+			// 
+			this.placethingsatvertices.CheckOnClick = true;
+			this.placethingsatvertices.Image = global::CodeImp.DoomBuilder.BuilderModes.Properties.Resources.PlaceThings;
+			this.placethingsatvertices.ImageTransparentColor = System.Drawing.Color.Magenta;
+			this.placethingsatvertices.Name = "placethingsatvertices";
+			this.placethingsatvertices.Size = new System.Drawing.Size(135, 22);
+			this.placethingsatvertices.Text = "Place things";
+			this.placethingsatvertices.CheckedChanged += new System.EventHandler(this.placethingsatvertices_CheckedChanged);
+			// 
 			// showguidelines
 			// 
 			this.showguidelines.CheckOnClick = true;
@@ -190,5 +202,6 @@
 		private System.Windows.Forms.ToolStripSeparator toolStripSeparator1;
 		private System.Windows.Forms.ToolStripButton showguidelines;
 		private System.Windows.Forms.ToolStripButton radialdrawing;
+		private System.Windows.Forms.ToolStripButton placethingsatvertices;
 	}
 }

Source/Plugins/BuilderModes/Interface/DrawRectangleOptionsPanel.cs

@@ -9,6 +9,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 		public event EventHandler OnContinuousDrawingChanged;
 		public event EventHandler OnShowGuidelinesChanged;
 		public event EventHandler OnRadialDrawingChanged;
+		public event EventHandler OnPlaceThingsAtVerticesChanged;
 
 		private bool blockevents;
 
@@ -21,6 +22,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 		public bool ContinuousDrawing { get { return continuousdrawing.Checked; } set { continuousdrawing.Checked = value; } }
 		public bool ShowGuidelines { get { return showguidelines.Checked; } set { showguidelines.Checked = value; } }
 		public bool RadialDrawing { get { return radialdrawing.Checked; } set { radialdrawing.Checked = value; } }
+		public bool PlaceThingsAtVertices { get { return placethingsatvertices.Checked; } set { placethingsatvertices.Checked = value; } }
 
 		public DrawRectangleOptionsPanel() 
 		{
@@ -36,6 +38,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			General.Interface.AddButton(continuousdrawing);
 			General.Interface.AddButton(showguidelines);
 			General.Interface.AddButton(radialdrawing);
+			General.Interface.AddButton(placethingsatvertices);
 			General.Interface.AddButton(toolStripSeparator1);
 			General.Interface.AddButton(radiuslabel);
 			General.Interface.AddButton(radius);
@@ -55,6 +58,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			General.Interface.RemoveButton(radiuslabel);
 			General.Interface.RemoveButton(toolStripSeparator1);
 			General.Interface.RemoveButton(showguidelines);
+			General.Interface.RemoveButton(placethingsatvertices);
 			General.Interface.RemoveButton(continuousdrawing);
 			General.Interface.RemoveButton(radialdrawing);
 			General.Interface.EndToolbarUpdate();
@@ -91,5 +95,10 @@ namespace CodeImp.DoomBuilder.BuilderModes
 		{
 			if(OnRadialDrawingChanged != null) OnRadialDrawingChanged(radialdrawing.Checked, EventArgs.Empty);
 		}
+
+		private void placethingsatvertices_CheckedChanged(object sender, EventArgs e)
+		{
+			if (OnPlaceThingsAtVerticesChanged != null) OnPlaceThingsAtVerticesChanged(placethingsatvertices.Checked, EventArgs.Empty);
+		}
 	}
 }