Add "Ice Skating" effect

GSChaos/CChaos.cpp

@@ -93,6 +93,7 @@ void CChaos::FeatureInit()
 	RegisterChaosFeature<CFeatureNPCExplode>();
 	RegisterChaosFeature<CFeatureJeepy>();
 	RegisterChaosFeature<CFeatureGravityField>();
+	RegisterChaosFeature<CFeatureIceSkating>();
 
 	RegisterChaosFeature<CFeatureCombineEffects>(); // must be last!!!
 

GSChaos/CFeatureIceSkating.cpp

@@ -0,0 +1,46 @@
+#include "includes.h"
+
+void CFeatureIceSkating::Init()
+{
+	CChaosFeature::Init();
+}
+
+void CFeatureIceSkating::ActivateFeature()
+{
+	CChaosFeature::ActivateFeature();
+
+	sv_friction = g_engfuncs->pfnCVarGetPointer("sv_friction");
+
+	if (!sv_friction)
+		return;
+
+	m_flOldFrictionValue = sv_friction->value;
+	m_bActivated = true;
+}
+
+void CFeatureIceSkating::DeactivateFeature()
+{
+	CChaosFeature::DeactivateFeature();
+	m_bActivated = false;
+
+	if (!sv_friction)
+	{
+		SERVER_COMMAND("sv_friction 4\n");
+		return;
+	}
+
+	sv_friction->value = m_flOldFrictionValue;
+}
+
+void CFeatureIceSkating::OnFrame(double time)
+{
+	if (!m_bActivated || !sv_friction)
+		return;
+
+	sv_friction->value = 0.0f;
+}
+
+const char* CFeatureIceSkating::GetFeatureName()
+{
+	return "Ice skating";
+}

GSChaos/CFeatureIceSkating.h

@@ -0,0 +1,42 @@
+/**
+ * Copyright - ScriptedSnark, 2024.
+ * CFeatureIceSkating.h
+ *
+ * Project (GSChaos) header file
+ * Authors: ScriptedSnark.
+ * Do not delete this comment block. Respect others' work!
+ */
+
+#ifdef CFEATUREICESKATING_H_RECURSE_GUARD
+#error Recursive header files inclusion detected in CFeatureIceSkating.h
+#else //CFEATUREICESKATING_H_RECURSE_GUARD
+
+#define CFEATUREICESKATING_H_RECURSE_GUARD
+
+#ifndef CFEATUREICESKATING_H_GUARD
+#define CFEATUREICESKATING_H_GUARD
+#pragma once
+
+#ifdef __cplusplus
+
+class CFeatureIceSkating : public CChaosFeature
+{
+	void Init() override;
+	void ActivateFeature() override;
+	void DeactivateFeature() override;
+	void OnFrame(double time) override;
+	const char* GetFeatureName() override;
+private:
+	bool m_bActivated;
+	cvar_t* sv_friction;
+	float m_flOldFrictionValue;
+};
+
+#else //!__cplusplus
+#error C++ compiler required to compile CFeatureIceSkating.h
+#endif //__cplusplus
+
+#endif //CFEATUREICESKATING_H_GUARD
+
+#undef CFEATUREICESKATING_H_RECURSE_GUARD
+#endif //CFEATUREICESKATING_H_RECURSE_GUARD

GSChaos/GSChaos.vcxproj

@@ -134,6 +134,7 @@
     <ClCompile Include="CFeatureGTA3HUD.cpp" />
     <ClCompile Include="CFeatureHEVMadness.cpp" />
     <ClCompile Include="CFeatureHighGravity.cpp" />
+    <ClCompile Include="CFeatureIceSkating.cpp" />
     <ClCompile Include="CFeatureIchthyosaur.cpp" />
     <ClCompile Include="CFeatureJeepy.cpp" />
     <ClCompile Include="CFeatureLobotomy.cpp" />
@@ -207,6 +208,7 @@
     <ClInclude Include="CFeatureGTA3HUD.h" />
     <ClInclude Include="CFeatureHEVMadness.h" />
     <ClInclude Include="CFeatureHighGravity.h" />
+    <ClInclude Include="CFeatureIceSkating.h" />
     <ClInclude Include="CFeatureIchthyosaur.h" />
     <ClInclude Include="CFeatureJeepy.h" />
     <ClInclude Include="CFeatureLobotomy.h" />

GSChaos/GSChaos.vcxproj.filters

@@ -167,6 +167,9 @@
     <ClCompile Include="CFeatureGravityField.cpp">
       <Filter>Effects</Filter>
     </ClCompile>
+    <ClCompile Include="CFeatureIceSkating.cpp">
+      <Filter>Effects</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="includes.h" />
@@ -392,6 +395,9 @@
     <ClInclude Include="CFeatureGravityField.h">
       <Filter>Effects</Filter>
     </ClInclude>
+    <ClInclude Include="CFeatureIceSkating.h">
+      <Filter>Effects</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Filter Include="Hooking">

GSChaos/includes.h

@@ -128,6 +128,7 @@ extern bool g_bEncrypted;
 #include "CFeatureNPCExplode.h"
 #include "CFeatureJeepy.h"
 #include "CFeatureGravityField.h"
+#include "CFeatureIceSkating.h"
 
 #include "CFeatureCombineEffects.h"
 //========================