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App/script/IScriptFilter.h

@@ -0,0 +1,52 @@
+#pragma once
+
+#include "util/RunStateOwner.h"
+
+namespace RBX
+{
+	class BaseScript;
+	class ModuleScript;
+
+	// Interface for Instances that turn in-game Scripts on and off
+	// Implementations can add/remove the script from ScriptContext
+	class RBXInterface IScriptFilter
+	{
+		friend class BaseScript;
+	protected:
+		// If script should run - pass back the IScriptOwner who should run it, otherwise NULL
+		virtual bool scriptShouldRun(BaseScript* script) = 0;
+	};
+
+	extern const char *const sRuntimeScriptService;
+
+	class RuntimeScriptService 
+		: public DescribedNonCreatable<RuntimeScriptService, Instance, sRuntimeScriptService, Reflection::ClassDescriptor::INTERNAL_LOCAL>
+		, public Service
+	{
+	private:
+		typedef DescribedNonCreatable<RuntimeScriptService, Instance, sRuntimeScriptService, Reflection::ClassDescriptor::INTERNAL_LOCAL> Super;
+
+	public:
+		RuntimeScriptService():isRunning(false)
+		{
+		}
+
+		void runScript(BaseScript* script);
+		void releaseScript(BaseScript* script);
+
+	protected:
+		virtual void onServiceProvider(ServiceProvider* oldProvider, ServiceProvider* newProvider);
+	private:
+		rbx::signals::scoped_connection runTransitionConnection;
+		std::set<weak_ptr<BaseScript> > pendingScripts;		// holds Scripts that are waiting for "Run"
+		std::set<weak_ptr<BaseScript> > runningScripts;
+
+		bool isRunning;
+
+		void onRunTransition(RunTransition event)
+		{
+			onRunState(event.newState);
+		}
+		void onRunState(RunState state);
+	};
+}