Implemented ULxLuaValues (not tested yet)

Source/Integration/StringDecoder.h

@@ -3,8 +3,7 @@
 #include "CoreMinimal.h"
 #include "lpx-basebuffer.hpp"
 
-
-using FlxSimpleDynamic = SimpleDynamic<std::string>;
+#include "StringDecoder.generated.h"
 
 class FlxStreamBufferCore {
 private:
@@ -70,3 +69,137 @@ public:
     }
 };
 
+/////////////////////////////////////////////////////////////////
+//
+// These are the types that can actually be packed into
+// a serialized buffer.
+//
+/////////////////////////////////////////////////////////////////
+
+UENUM(BlueprintType)
+enum class ELxLuaValueType : uint8 {
+    None,
+    String,
+	Name,
+    Float,
+    Boolean,
+    Vector
+};
+
+
+/////////////////////////////////////////////////////////////////
+//
+// This class stores an array of values that were returned by Lua.
+//
+/////////////////////////////////////////////////////////////////
+
+UCLASS(MinimalAPI)
+class UlxLuaValues : public UObject
+{
+    GENERATED_BODY()
+
+private:
+    // The raw serialized data returned by Lua.
+    //
+    std::string Serialized;
+
+    // For each chunk, the type of the chunk.
+    //
+    TArray<ELxLuaValueType> Types;
+
+    // For each chunk, a pointer to the serialized data.
+    //
+    TArray<std::string_view> Data;
+
+    // The current cursor.
+    //
+    int Cursor;
+
+private:
+    // Clear everything.
+    //
+    void Empty();
+
+    // Copies the data, and then preprocesses it to make sure
+    // it's all valid.  If it's not valid, returns false.
+    // 
+    bool Initialize(std::string_view data);
+
+    // Compare two types.  If they aren't equal, log an error and return false.
+    //
+    static bool CheckType(ELxLuaValueType Type, ELxLuaValueType Desired);
+
+public:
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+    int Length() const { return Types.Num(); }
+
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+    int GetCursor() const { return Cursor; }
+
+    UFUNCTION(BlueprintCallable, Category = "Luprex|Lua Value Array")
+    void SetCursor(int n) { Cursor = n; }
+
+private: 
+    //
+    // Functions that get values from the array, random access.
+    //
+
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+    ELxLuaValueType GetType(int n) const;
+    
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+    bool IsType(int n, ELxLuaValueType Type) const { return GetType(n) == Type; }
+    
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+    FString GetString(int n) const;
+	
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+	FName GetName(int n) const;
+	
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+	double GetFloat(int n) const;
+
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+	int GetInt(int n) const;
+
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+	FVector GetVector(int n) const;
+
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+	FVector2D GetVector2D(int n) const;
+
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+	bool GetBoolean(int n) const;
+
+    //
+    // Functions that get values from the array using the cursor.
+    //
+
+public:
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+    ELxLuaValueType NextType() const { return GetType(Cursor); }
+    
+    UFUNCTION(BlueprintPure, Category = "Luprex|Lua Value Array")
+    bool IsNextType(ELxLuaValueType Type) const { return IsType(Cursor, Type); }
+    
+    UFUNCTION(BlueprintCallable, Category = "Luprex|Lua Value Array")
+    FString ReadString() { return GetString(Cursor++); }
+	
+    UFUNCTION(BlueprintCallable, Category = "Luprex|Lua Value Array")
+	FName ReadName() { return GetName(Cursor++); }
+	
+    UFUNCTION(BlueprintCallable, Category = "Luprex|Lua Value Array")
+	double ReadFloat() { return GetFloat(Cursor++); }
+
+    UFUNCTION(BlueprintCallable, Category = "Luprex|Lua Value Array")
+	int ReadInt() { return GetInt(Cursor++); }
+
+    UFUNCTION(BlueprintCallable, Category = "Luprex|Lua Value Array")
+	FVector ReadVector() { return GetVector(Cursor++); }
+
+    UFUNCTION(BlueprintCallable, Category = "Luprex|Lua Value Array")
+	FVector2D ReadVector2D() { return GetVector2D(Cursor++); }
+
+    UFUNCTION(BlueprintCallable, Category = "Luprex|Lua Value Array")
+	bool ReadBoolean() { return GetBoolean(Cursor++); }
+};