readd ActorProxy

lets us do cool stuff, not really that bad of a thing to have tbh
... if theres weird exploits with this ill figure it out sooner or later

Author: poco0317

src/Etterna/Actor/Base/ActorProxy.cpp

@@ -0,0 +1,67 @@
+#include "Etterna/Globals/global.h"
+#include "ActorProxy.h"
+#include "Etterna/Actor/Base/ActorUtil.h"
+
+REGISTER_ACTOR_CLASS(ActorProxy);
+
+ActorProxy::ActorProxy()
+{
+	m_pActorTarget = nullptr;
+}
+
+bool
+ActorProxy::EarlyAbortDraw() const
+{
+	return m_pActorTarget == nullptr || Actor::EarlyAbortDraw();
+}
+
+void
+ActorProxy::DrawPrimitives()
+{
+	if (m_pActorTarget != nullptr) {
+		bool bVisible = m_pActorTarget->GetVisible();
+		m_pActorTarget->SetVisible(true);
+		m_pActorTarget->Draw();
+		m_pActorTarget->SetVisible(bVisible);
+	}
+}
+
+void
+ActorProxy::LoadFromNode(const XNode* pNode)
+{
+	Actor::LoadFromNode(pNode);
+}
+
+// lua start
+#include "Etterna/Models/Lua/LuaBinding.h"
+
+/** @brief Allow Lua to have access to the ActorProxy. */
+class LunaActorProxy : public Luna<ActorProxy>
+{
+  public:
+	static int SetTarget(T* p, lua_State* L)
+	{
+		Actor* pTarget = Luna<Actor>::check(L, 1);
+		p->SetTarget(pTarget);
+		COMMON_RETURN_SELF;
+	}
+
+	static int GetTarget(T* p, lua_State* L)
+	{
+		Actor* pTarget = p->GetTarget();
+		if (pTarget != nullptr)
+			pTarget->PushSelf(L);
+		else
+			lua_pushnil(L);
+		return 1;
+	}
+
+	LunaActorProxy()
+	{
+		ADD_METHOD(SetTarget);
+		ADD_METHOD(GetTarget);
+	}
+};
+
+LUA_REGISTER_DERIVED_CLASS(ActorProxy, Actor)
+// lua end

src/Etterna/Actor/Base/ActorProxy.h

@@ -0,0 +1,29 @@
+#ifndef ACTOR_PROXY_H
+#define ACTOR_PROXY_H
+
+#include "Actor.h"
+
+struct lua_State;
+/** @brief Renders another actor. */
+class ActorProxy : public Actor
+{
+  public:
+	ActorProxy();
+
+	virtual bool EarlyAbortDraw() const;
+	virtual void DrawPrimitives();
+
+	void LoadFromNode(const XNode* pNode);
+	virtual ActorProxy* Copy() const;
+
+	Actor* GetTarget() { return m_pActorTarget; }
+	void SetTarget(Actor* pTarget) { m_pActorTarget = pTarget; }
+
+	// Lua
+	virtual void PushSelf(lua_State* L);
+
+  private:
+	Actor* m_pActorTarget;
+};
+
+#endif

src/Etterna/Actor/CMakeLists.txt

@@ -3,6 +3,7 @@ list(APPEND ACTOR_BASE_SRC
 	"Base/ActorFrame.cpp"
 	"Base/ActorFrameTexture.cpp"
 	"Base/ActorMultiVertex.cpp"
+	"Base/ActorProxy.cpp"
 	"Base/ActorScroller.cpp"
 	"Base/ActorSound.cpp"
 	"Base/ActorUtil.cpp"
@@ -20,6 +21,7 @@ list(APPEND ACTOR_BASE_HPP
 	"Base/ActorFrame.h"
 	"Base/ActorFrameTexture.h"
 	"Base/ActorMultiVertex.h"
+	"Base/ActorProxy.h"
 	"Base/ActorScroller.h"
 	"Base/ActorSound.h"
 	"Base/ActorUtil.h"