Make OnControlPhase take a float, representing the delta time.

This is not ACTUALLY the amount of time that has passed, since things in the gameplay loop appear to assume they are being called thirty times per second, even if more or less time has passed. Thus to keep the scripts in sync with the the rest of the engine, we force a 1/30 second delta time.

TR5Main/Game/control.cpp

@@ -189,9 +189,7 @@ extern int lockInput;
 
 GAME_STATUS ControlPhase(int numFrames, int demoMode)
 {
-	g_GameScript->OnControlPhase();
 	short oldLaraFrame;
-
 	GameScriptLevel* level = g_GameFlow->GetLevel(CurrentLevel);
 
 	RegeneratePickups();
@@ -216,6 +214,10 @@ GAME_STATUS ControlPhase(int numFrames, int demoMode)
 	{
 		GlobalCounter++;
 
+		// This might not be the exact amount of time that has passed, but giving it a
+		// value of 1/30 keeps it in lock-step with the rest of the game logic,
+		// which assumes 30 iterations per second.
+		g_GameScript->OnControlPhase(1.0f/30.0f);
 		UpdateSky();
 
 		// Poll the keyboard and update input variables

TR5Main/Scripting/GameLogicScript.cpp

@@ -650,8 +650,9 @@ void GameScript::ExecuteFunction(std::string const & name)
 	}
 }
 
-static void doCallback(sol::protected_function const & func) {
+static void doCallback(sol::protected_function const & func, std::optional<float> dt = std::nullopt)  {
-	auto r = func();
+	auto r = dt.has_value() ? func(dt) : func();
+
 	if (!r.valid())
 	{
 		sol::error err = r;
@@ -671,10 +672,10 @@ void GameScript::OnLoad()
 		doCallback(m_onLoad);
 }
 
-void GameScript::OnControlPhase()
+void GameScript::OnControlPhase(float dt)
 {
 	if(m_onControlPhase.valid())
-		doCallback(m_onControlPhase);
+		doCallback(m_onControlPhase, dt);
 }
 
 void GameScript::OnSave()

TR5Main/Scripting/GameLogicScript.h

@@ -116,7 +116,7 @@ public:
 	void								InitCallbacks();
 	void								OnStart();
 	void								OnLoad();
-	void								OnControlPhase();
+	void								OnControlPhase(float dt);
 	void								OnSave();
 	void								OnEnd();
 };