- added two new integral types SpriteID and TextureID, both are needed to allow proper serialization as they require something different to be written out than a regular integer.

src/scripting/vm/vm.h

@@ -127,6 +127,8 @@ enum
 	CAST_So2S,
 	CAST_V22S,
 	CAST_V32S,
+	CAST_SID2S,
+	CAST_TID2S,
 };
 
 // Register types for VMParam

src/scripting/vm/vmexec.cpp

@@ -36,6 +36,8 @@
 #include <s_sound.h>
 #include "dobject.h"
 #include "xs_Float.h"
+#include "r_state.h"
+#include "textures/textures.h"
 #include "math/cmath.h"
 
 #define IMPLEMENT_VMEXEC

src/scripting/vm/vmexec.h

@@ -1695,6 +1695,19 @@ static void DoCast(const VMRegisters &reg, const VMFrame *f, int a, int b, int c
 		reg.s[a] = S_sfx[reg.d[b]].name;
 		break;
 
+	case CAST_SID2S:
+		ASSERTS(a); ASSERTD(b);
+		reg.s[a] = unsigned(reg.d[b]) >= sprites.Size() ? "TNT1" : sprites[reg.d[b]].name;
+		break;
+
+	case CAST_TID2S:
+	{
+		ASSERTS(a); ASSERTD(b);
+		auto tex = TexMan[*(FTextureID*)&(reg.d[b])];
+		reg.s[a] = tex == nullptr ? "(null)" : tex->Name.GetChars(); 
+		break;
+	}
+
 	default:
 		assert(0);
 	}