Add object transparency property support

project/code/LGS/Database/Chunks/Property.cs

@@ -111,3 +111,14 @@ public class PropString : Property
         // value = tmpName[..Math.Min(length - 1, tmpName.Length)];
     }
 }
+
+public class PropFloat : Property
+{
+    public float value;
+
+    public override void Read(BinaryReader reader)
+    {
+        base.Read(reader);
+        value = reader.ReadSingle();
+    }
+}

project/code/LGS/Database/File.cs

@@ -109,6 +109,7 @@ public class DbFile
             "P$OTxtRepr1" => new PropertyChunk<PropString>(),
             "P$OTxtRepr2" => new PropertyChunk<PropString>(),
             "P$OTxtRepr3" => new PropertyChunk<PropString>(),
+            "P$RenderAlp" => new PropertyChunk<PropFloat>(),
             "LD$MetaProp" => new LinkDataMetaProp(),
             _ when entryName.StartsWith("L$") => new LinkChunk(),
             _ when entryName.StartsWith("P$") => new PropertyChunk<PropGeneric>(),

project/code/LGS/Database/ObjectHierarchy.cs

@@ -42,6 +42,7 @@ public class ObjectHierarchy
             db.Chunks.TryGetValue("P$OTxtRepr1", out var txtRepl1Raw) &&
             db.Chunks.TryGetValue("P$OTxtRepr2", out var txtRepl2Raw) &&
             db.Chunks.TryGetValue("P$OTxtRepr3", out var txtRepl3Raw) &&
+            db.Chunks.TryGetValue("P$RenderAlp", out var renderAlphaRaw) &&
             db.Chunks.TryGetValue("L$MetaProp", out var metaPropLinksRaw) &&
             db.Chunks.TryGetValue("LD$MetaProp", out var metaPropLinkDataRaw))
         {
@@ -52,6 +53,7 @@ public class ObjectHierarchy
             var txtRepl1s = (PropertyChunk<PropString>)txtRepl1Raw;
             var txtRepl2s = (PropertyChunk<PropString>)txtRepl2Raw;
             var txtRepl3s = (PropertyChunk<PropString>)txtRepl3Raw;
+            var renderAlpha = (PropertyChunk<PropFloat>)renderAlphaRaw;
             var metaPropLinks = (LinkChunk)metaPropLinksRaw;
             var metaPropLinkData = (LinkDataMetaProp)metaPropLinkDataRaw;
 
@@ -64,6 +66,7 @@ public class ObjectHierarchy
                 gam.Chunks.TryGetValue("P$OTxtRepr1", out var gamTxtRepl1s) &&
                 gam.Chunks.TryGetValue("P$OTxtRepr2", out var gamTxtRepl2s) &&
                 gam.Chunks.TryGetValue("P$OTxtRepr3", out var gamTxtRepl3s) &&
+                gam.Chunks.TryGetValue("P$RenderAlp", out var gamRenderAlpha) &&
                 gam.Chunks.TryGetValue("L$MetaProp", out var gamLinks) &&
                 gam.Chunks.TryGetValue("LD$MetaProp", out var gamLinkData))
             {
@@ -74,6 +77,7 @@ public class ObjectHierarchy
                 txtRepl1s.properties.AddRange(((PropertyChunk<PropString>)gamTxtRepl1s).properties);
                 txtRepl2s.properties.AddRange(((PropertyChunk<PropString>)gamTxtRepl2s).properties);
                 txtRepl3s.properties.AddRange(((PropertyChunk<PropString>)gamTxtRepl3s).properties);
+                renderAlpha.properties.AddRange(((PropertyChunk<PropFloat>)gamRenderAlpha).properties);
                 metaPropLinks.links.AddRange(((LinkChunk)gamLinks).links);
                 metaPropLinkData.linkData.AddRange(((LinkDataMetaProp)gamLinkData).linkData);
             }
@@ -140,6 +144,10 @@ public class ObjectHierarchy
             {
                 TryAddProp("P$OTxtRepr3", prop);
             }
+            foreach (var prop in renderAlpha.properties)
+            {
+                TryAddProp("P$RenderAlp", prop);
+            }
         }
     }
 

project/code/TMV/Mission.cs

@@ -253,6 +253,7 @@ public partial class Mission : Node3D
 			var txtRepl1 = objHierarchy.GetProperty<PropString>(id, "P$OTxtRepr1");
 			var txtRepl2 = objHierarchy.GetProperty<PropString>(id, "P$OTxtRepr2");
 			var txtRepl3 = objHierarchy.GetProperty<PropString>(id, "P$OTxtRepr3");
+			var renderAlpha = objHierarchy.GetProperty<PropFloat>(id, "P$RenderAlp");
 			var renderMode = renderTypeProp == null ? PropRenderType.Mode.Normal : renderTypeProp.mode;
 
 			if (modelNameProp == null || renderMode == PropRenderType.Mode.NotRendered)
@@ -326,6 +327,11 @@ public partial class Mission : Node3D
 					}
 				}
 
+				if (renderAlpha != null)
+				{
+					model.Transparency = 1.0f - renderAlpha.value;
+				}
+
 				model.AddToGroup(OBJECT_MODELS_GROUP);
 
 				AddChild(model);