Fix creating new class function breaking existing custom bindings

Author: FortyTwoFortyTwo

README.md

@@ -3,7 +3,7 @@
 SourceMod plugin that exposes many VScript features to make use of it. Currently supports L4D2 and TF2.
 
 ## Builds
-All builds can be found in [releases](https://github.com/FortyTwoFortyTwo/VScript/releases) page, auto-built on every commits done in master branch.
+All builds can be found in [releases](https://github.com/FortyTwoFortyTwo/VScript/releases) page, auto-built on every commits done in main branch.
 
 ## Requirements
 - At least SourceMod version 1.12.0.6924

scripting/vscript.sp

@@ -2,7 +2,7 @@
 
 #include "include/vscript.inc"
 
-#define PLUGIN_VERSION			"1.9.1"
+#define PLUGIN_VERSION			"1.9.2"
 #define PLUGIN_VERSION_REVISION	"manual"
 
 char g_sOperatingSystem[16];

scripting/vscript/binding.sp

@@ -62,16 +62,17 @@ void Binding_SetCustom(VScriptFunction pFunction)
 	Function_SetBinding(pFunction, g_pCustomBinding);
 }
 
-void Binding_Delete(VScriptFunction pFunction)
+bool Binding_Delete(VScriptFunction pFunction)
 {
 	int iIndex = g_aBindingInfos.FindValue(pFunction, BindingInfo::pFunction);
 	if (iIndex == -1)
-		return;
+		return false;
 
 	BindingInfo info;
 	g_aBindingInfos.GetArray(iIndex, info);
 	delete info.hSDKCall;
 	g_aBindingInfos.Erase(iIndex);
+	return true;
 }
 
 public MRESReturn Binding_Detour(DHookReturn hReturn, DHookParam hParam)

scripting/vscript/class.sp

@@ -138,13 +138,24 @@ VScriptFunction Class_GetFunctionFromName(VScriptClass pClass, const char[] sNam
 
 VScriptFunction Class_CreateFunction(VScriptClass pClass)
 {
-	Address pFunctionBindings = pClass + view_as<Address>(g_iClassDesc_FunctionBindings);
-	int iFunctionCount = LoadFromAddress(pClass + view_as<Address>(g_iClassDesc_FunctionBindings) + view_as<Address>(0x0C), NumberType_Int32);
+	int iFunctionCount = Class_GetFunctionCount(pClass);
+	
+	// Clear any binding detours we have first before moving over to new memory
+	ArrayList aList = new ArrayList();
+	for (int i = 0; i < iFunctionCount; i++)
+		if (Binding_Delete(Class_GetFunctionFromIndex(pClass, i)))
+			aList.Push(i);
 
+	Address pFunctionBindings = pClass + view_as<Address>(g_iClassDesc_FunctionBindings);
 	Memory_UtlVectorSetSize(pFunctionBindings, g_iFunctionBinding_sizeof, iFunctionCount + 1);
 
-	Address pData = LoadFromAddress(pClass + view_as<Address>(g_iClassDesc_FunctionBindings), NumberType_Int32);
-	VScriptFunction pFunction = view_as<VScriptFunction>(pData + view_as<Address>(g_iFunctionBinding_sizeof * iFunctionCount));
+	// Re-detour any bindings
+	for (int i = 0; i < aList.Length; i++)
+		Binding_SetCustom(Class_GetFunctionFromIndex(pClass, aList.Get(i)));
+	
+	delete aList;
+	
+	VScriptFunction pFunction = Class_GetFunctionFromIndex(pClass, iFunctionCount);
 	Function_Init(pFunction, true);
 	return pFunction;
 }