From b6fb5f81737bb736f43ad23e94cfc829acd4c8f0 Mon Sep 17 00:00:00 2001
From: Aaron Kimbre <aronwk.aaron@gmail.com>
Date: Sat, 27 Aug 2022 23:06:44 -0500
Subject: [PATCH] Add Friction Volume script

---
 dScripts/CMakeLists.txt     |  1 +
 dScripts/CppScripts.cpp     |  3 +++
 dScripts/FrictionVolume.cpp | 14 ++++++++++++++
 dScripts/FrictionVolume.h   | 11 +++++++++++
 4 files changed, 29 insertions(+)
 create mode 100644 dScripts/FrictionVolume.cpp
 create mode 100644 dScripts/FrictionVolume.h

diff --git a/dScripts/CMakeLists.txt b/dScripts/CMakeLists.txt
index ac35b76d..d3ce823b 100644
--- a/dScripts/CMakeLists.txt
+++ b/dScripts/CMakeLists.txt
@@ -87,6 +87,7 @@ set(DSCRIPT_SOURCES "ActivityManager.cpp"
 	"FlameJetServer.cpp"
 	"ForceVolumeServer.cpp"
 	"FountainOfImagination.cpp"
+	"FrictionVolume.cpp"
 	"FvBounceOverWall.cpp"
 	"FvBrickPuzzleServer.cpp"
 	"FvCandle.cpp"
diff --git a/dScripts/CppScripts.cpp b/dScripts/CppScripts.cpp
index 73c50d62..71e03b70 100644
--- a/dScripts/CppScripts.cpp
+++ b/dScripts/CppScripts.cpp
@@ -170,6 +170,7 @@
 #include "MailBoxServer.h"
 #include "ActMine.h"
 #include "FireFirstSkillonStartup.h"
+#include "FrictionVolume.h"
 
 // Racing Scripts
 #include "RaceImagineCrateServer.h"
@@ -627,6 +628,8 @@ CppScripts::Script* CppScripts::GetScript(Entity* parent, const std::string& scr
 		script = new FvRaceSmashEggImagineServer();
 	else if (scriptName == "scripts\\ai\\RACING\\OBJECTS\\RACE_SMASH_SERVER.lua")
 		script = new RaceSmashServer();
+	else if (scriptName == "scripts\\02_server\\Map\\General\\L_FRICTION_VOLUME_SERVER.lua")
+		script = new FrictionVolume();
 
 	//NT:
 	else if (scriptName == "scripts\\02_server\\Map\\NT\\L_NT_SENTINELWALKWAY_SERVER.lua")
diff --git a/dScripts/FrictionVolume.cpp b/dScripts/FrictionVolume.cpp
new file mode 100644
index 00000000..7d587eb7
--- /dev/null
+++ b/dScripts/FrictionVolume.cpp
@@ -0,0 +1,14 @@
+#include "FrictionVolume.h"
+#include "PhantomPhysicsComponent.h"
+#include "Entity.h"
+
+void FrictionVolume::OnStartup(Entity* self) {
+	auto frictionAmount = self->GetVarAs<float>(m_FrictionVariable);
+	if (!frictionAmount) frictionAmount = m_DefaultFriction;
+	auto* phanPhys = self->GetComponent<PhantomPhysicsComponent>();
+	if (!phanPhys) return;
+
+	phanPhys->SetPhysicsEffectActive(true);
+	phanPhys->SetEffectType(4); // this should be noted in a enum somewhere
+	phanPhys->SetDirectionalMultiplier(frictionAmount);
+}
diff --git a/dScripts/FrictionVolume.h b/dScripts/FrictionVolume.h
new file mode 100644
index 00000000..2290e921
--- /dev/null
+++ b/dScripts/FrictionVolume.h
@@ -0,0 +1,11 @@
+#pragma once
+#include "CppScripts.h"
+
+class FrictionVolume : public CppScripts::Script
+{
+public:
+	void OnStartup(Entity* self) override;
+private:
+	const float m_DefaultFriction = 1.5;
+	const std::u16string m_FrictionVariable = u"FrictionAmt";
+};