Fixed a typo in Chunk Model Data Editor and edited the RingGroup object definition for SA2.

-Chunk Model Data Editor: Removed an unnecessary conditional that caused the Flip U flag to not appear in the strip flags list.
-SET Editing: Added the "GetTexturesMultiSource" function, which grants the ability to use multiple texture pack sources for SET objects; this is vital for properly displaying SA2 SET objects.
-SA2 Object Definitions:
--RingGroup: Edited the calculations for ring displacements in both the RingLinear and RingCircle classes. The Switch and Mystic Melody variants now have an added "Shrine/Switch ID" property that can be changed, and the default displacement for the rings has been modified to start at 10.
---RingLinear: Ring lines now have proper rotations and have their sine wave-like displacements applied.

Author: End-User-Person

Libraries/SAEditorCommon/SETEditing/ObjectHelper.cs

@@ -8,6 +8,7 @@
 using System.Linq;
 using Color = System.Drawing.Color;
 using Mesh = SAModel.Direct3D.Mesh;
+using SAModel.Direct3D.TextureSystem;
 
 namespace SAModel.SAEditorCommon.SETEditing
 {
@@ -85,6 +86,50 @@ public static Texture[] GetTextures(string name, SplitTools.NJS_TEXLIST texnames
 				return texlist.ToArray();
 			}
 		}
+		// This is primarily used for SA2 level objects that pull from multiple texture sources.
+		// Copied from pieces of SAMDL's code.
+		public static Texture[] GetTexturesMultiSource(List<string> name, SplitTools.NJS_TEXLIST texnames = null, Device dev = null)
+		{
+			Texture[] result = null;
+			if (texnames == null)
+				return result;
+			else
+			{
+				List<BMPInfo> texturedata = new List<BMPInfo>();
+				Direct3D.TextureSystem.BMPInfo[] texturebmps = null;
+				if (texturebmps != null && texturebmps.Length > 0)
+					texturedata.AddRange(texturebmps);
+				for (int i = 0; i < name.Count; i++)
+				{
+					if (LevelData.TextureBitmaps.ContainsKey(name[i]))
+						texturedata.AddRange(LevelData.TextureBitmaps[name[i]]);
+					else if (LevelData.TextureBitmaps.ContainsKey(name[i].ToUpperInvariant()))
+						texturedata.AddRange(LevelData.TextureBitmaps[name[i].ToUpperInvariant()]);
+					else if (LevelData.TextureBitmaps.ContainsKey(name[i].ToLowerInvariant()))
+						texturedata.AddRange(LevelData.TextureBitmaps[name[i].ToLowerInvariant()]);
+				}
+				texturebmps = texturedata.ToArray();
+				if (LevelData.TextureBitmaps == null || dev == null)
+					return result;
+				List<Texture> texlist = new List<Texture>();
+				List<BMPInfo> texinfo = new List<BMPInfo>();
+				List<string> dupnames = new List<string>();
+				for (int i = 0; i < texnames.TextureNames.Length; i++)
+				{
+					for (int b = 0; b < texturebmps.Length; b++)
+					{
+						if (string.IsNullOrEmpty(texnames.TextureNames[i]) || (texnames.TextureNames[i].ToLowerInvariant() == texturebmps[b].Name.ToLowerInvariant() && !dupnames.Contains(texnames.TextureNames[i].ToLowerInvariant())))
+						{
+							texinfo.Add(texturebmps[b]);
+							texlist.Add(texturebmps[b].Image.ToTexture(dev));
+							dupnames.Add(texturebmps[b].Name.ToLowerInvariant());
+							continue;
+						}
+					}
+				}
+				return texlist.ToArray();
+			}
+		}
 
 		public static HitResult CheckQuestionBoxHit(Vector3 Near, Vector3 Far, Viewport Viewport, Matrix Projection, Matrix View, MatrixStack transform)
 		{

Libraries/SAEditorCommon/UI/ChunkModelDataEditor.cs

@@ -638,7 +638,6 @@ private void BuildPolyChunkList()
 								clamp += pct.ClampV ? "V" : "";
 								if (pct.ClampU || pct.ClampV)
 									texdata += clamp + " )";
-								if (!pct.ClampU && !pct.ClampV)
 								flip += pct.FlipU ? "U" : "";
 								flip += pct.FlipV ? "V" : "";
 								if (pct.FlipU || pct.FlipV)