spt_con_notify (#319)

* spt_con_notify: Initial

* spt_con_notify: Change feature class name

* spt_con_notify: Add support for 5135

spt.vcxproj

@@ -1180,6 +1180,7 @@ copy "$(TargetPath)" "$(IntDir)..\builds\$(TargetFileName)"</Command>
     <ClCompile Include="spt\features\boog.cpp" />
     <ClCompile Include="spt\features\camera.cpp" />
     <ClCompile Include="spt\features\collision_group.cpp" />
+    <ClCompile Include="spt\features\con_notify.cpp" />
     <ClCompile Include="spt\features\cvar.cpp" />
     <ClCompile Include="spt\features\demo.cpp" />
     <ClCompile Include="spt\features\dmomm.cpp" />

spt.vcxproj.filters

@@ -346,6 +346,9 @@
     <ClCompile Include="spt\features\portalled_pause.cpp">
       <Filter>spt\features</Filter>
     </ClCompile>
+    <ClCompile Include="spt\features\con_notify.cpp">
+      <Filter>spt\features</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\public\tier0\basetypes.h">

spt/features/con_notify.cpp

@@ -0,0 +1,107 @@
+#include "stdafx.hpp"
+#include "..\feature.hpp"
+
+ConVar spt_con_notify_cvar("spt_con_notify", 
+                           "0", 
+                           0,
+                           "Enables or disables console notifying (printing of console text at the top left of the screen, like with developer 1)");
+
+ConVar* developer;
+
+namespace patterns
+{
+	PATTERNS(Con_ColorPrint, 
+             "BMS 0.9", 
+             "55 8B EC 83 EC 08 80 3D ?? ?? ?? ?? 00 0F 85", 
+             "5135", 
+             "83 EC 08 80 3D ?? ?? ?? ?? 00 0F 85");
+	PATTERNS(CConPanel__AddToNotify, 
+             "BMS 0.9", 
+             "55 8B EC 81 EC 30 08 00 00 A1 ?? ?? ?? ?? 33 C5 89 45 ?? 80 3D ?? ?? ?? ?? 00",
+             "5135", 
+             "81 EC 04 08 00 00 80 3D ?? ?? ?? ?? 00");
+	PATTERNS(CConPanel__DrawNotify,
+	         "BMS 0.9",
+	         "55 8B EC 83 EC 3C 56 8B F1 C7 45 ?? 05 00 00 00",
+	         "5135",
+	         "83 EC 08 55 57 8B F9");
+}
+
+// Feature description
+class ConNotifyFeature : public FeatureWrapper<ConNotifyFeature>
+{
+public:
+protected:
+    virtual bool ShouldLoadFeature() override;
+
+    virtual void InitHooks() override;
+
+    virtual void LoadFeature() override;
+
+private:
+    DECL_HOOK_CDECL(void, Con_ColorPrint, const Color& clr, char const* msg);
+	DECL_HOOK_THISCALL(void, CConPanel__AddToNotify, void*, const Color& clr, char const* msg);
+    DECL_HOOK_THISCALL(void, CConPanel__DrawNotify, void*);
+};
+
+static ConNotifyFeature spt_con_notify;
+
+bool ConNotifyFeature::ShouldLoadFeature()
+{
+    return true;
+}
+
+void ConNotifyFeature::InitHooks()
+{
+    HOOK_FUNCTION(engine, Con_ColorPrint);
+    HOOK_FUNCTION(engine, CConPanel__AddToNotify);
+    HOOK_FUNCTION(engine, CConPanel__DrawNotify);
+
+    developer = g_pCVar->FindVar("developer");
+}
+
+void ConNotifyFeature::LoadFeature()
+{
+    if (ORIG_CConPanel__AddToNotify == nullptr 
+        || ORIG_CConPanel__DrawNotify == nullptr
+	    || ORIG_Con_ColorPrint == nullptr 
+        || developer == nullptr)
+	    return;
+
+    InitConcommandBase(spt_con_notify_cvar);
+}
+
+// just turn on developer before entering these functions
+#define IMPL(funcName, ...) \
+{ \
+    if (!spt_con_notify_cvar.GetBool()) \
+    { \
+        spt_con_notify.ORIG_##funcName(__VA_ARGS__);\
+        return;\
+	} \
+ \
+    const char* devVal = developer->GetString(); \
+    char* oldDev = new char[strlen(devVal)]; \
+    strcpy(oldDev, devVal); \
+    developer->SetValue(true); \
+ \
+    spt_con_notify.ORIG_##funcName(__VA_ARGS__); \
+ \
+    developer->SetValue(oldDev); \
+    return;\
+}
+
+IMPL_HOOK_CDECL(ConNotifyFeature, void, Con_ColorPrint, const Color& clr, char const* msg) 
+{
+    IMPL(Con_ColorPrint, clr, msg);
+}
+
+IMPL_HOOK_THISCALL(ConNotifyFeature, void, CConPanel__AddToNotify, void*, const Color& clr, char const* msg)
+{
+    IMPL(CConPanel__AddToNotify, thisptr, clr, msg);
+}
+
+IMPL_HOOK_THISCALL(ConNotifyFeature, void, CConPanel__DrawNotify, void*)
+{
+    IMPL(CConPanel__DrawNotify, thisptr);
+}