Move GameScriptDisplayString over to Scripting.

Scripting/include/GameScriptDisplayString.h

@@ -0,0 +1,82 @@
+#pragma once
+#include "GameScriptColor.h"
+
+enum class DisplayStringOptions : size_t
+{
+	CENTER,
+	OUTLINE,
+	NUM_OPTIONS
+};
+
+static const std::unordered_map<std::string, DisplayStringOptions> kDisplayStringOptionNames
+{
+	{"CENTER", DisplayStringOptions::CENTER},
+	{"SHADOW", DisplayStringOptions::OUTLINE}
+};
+
+using FlagArray = std::array<bool, static_cast<size_t>(DisplayStringOptions::NUM_OPTIONS)>;
+// Used to store data used to render the string.
+// This is separate from GameScriptDisplayString because the lifetimes
+// of the classes differ slightly.
+class UserDisplayString
+{
+public:
+	UserDisplayString(std::string const& key, int x, int y, D3DCOLOR col, FlagArray const & flags, bool translated);
+
+private:
+	UserDisplayString() = default;
+	std::string m_key{};
+	D3DCOLOR m_color{ 0xFFFFFFFF };
+	FlagArray m_flags{};
+	int m_x{ 0 };
+	int m_y{ 0 };
+	bool m_deleteWhenZero{ false };
+
+	//seconds
+	float m_timeRemaining{ 0.0f };
+	bool m_isInfinite{ false };
+	bool m_isTranslated{ false };
+	friend class GameScript;
+	friend class GameScriptDisplayString;
+};
+
+using DisplayStringIDType = uintptr_t;
+using SetItemCallback = std::function<bool(DisplayStringIDType, UserDisplayString const&)>;
+using RemoveItemCallback = std::function<bool(DisplayStringIDType)>;
+using GetItemCallback = std::function<std::optional<std::reference_wrapper<UserDisplayString>>(DisplayStringIDType)>;
+
+
+class GameScriptDisplayString
+{
+private:
+	DisplayStringIDType m_id{ 0 };
+public:
+	GameScriptDisplayString();
+	~GameScriptDisplayString();
+	DisplayStringIDType GetID() const;
+	static void Register(sol::state* state);
+
+	void SetPos(int x, int y);
+	std::tuple<int, int> GetPos() const;
+
+	void SetCol(GameScriptColor const&);
+	GameScriptColor GetCol();
+
+	void SetKey(std::string const&);
+	std::string GetKey() const;
+
+	static SetItemCallback s_setItemCallback;
+	static RemoveItemCallback s_removeItemCallback;
+	static GetItemCallback s_getItemCallback;
+
+	// Creating a GameScriptDisplayString requires us to add an identifier
+	// to a data structure. We use callbacks so this class doesn't have
+	// to know about said data structure.
+	static void SetCallbacks(SetItemCallback cba, RemoveItemCallback cbr, GetItemCallback cbg)
+	{
+		s_setItemCallback = cba;
+		s_removeItemCallback = cbr;
+		s_getItemCallback = cbg;
+	}
+
+};