TextureFactory

UObject* UMyFactory::ParseTexture(UObject* InParent, const FName& InName,const FString& Filename, EObjectFlags Flags)
{
    int W, H;
    TArray<FString> Lines;
    TArray<FVector> ControlPoint;
    ControlPoint.SetNumZeroed(4);
    FFileHelper::LoadFileToStringArray(Lines, *Filename);
    for (const FString& Line : Lines)
    {
        TArray<FString> Tokens;
        Line.ParseIntoArray(Tokens, TEXT(" "), true);
        if (Tokens[0] == "Width")
        {
            W = FCString::Atoi(*Tokens[1]);
        }
        else if (Tokens[0] == "Height")
        {
            H = FCString::Atoi(*Tokens[1]);
        }
        else if (Tokens[0] == "P1")
        {
            TArray<FString> Coord;
            Tokens[1].ParseIntoArray(Coord, TEXT(","), true);
            ControlPoint[0] = FVector(FCString::Atoi(*(Coord[0])), FCString::Atoi(*(Coord[1])),0);
        }
        else if (Tokens[0] == "P2")
        {
            TArray<FString> Coord;
            Tokens[1].ParseIntoArray(Coord, TEXT(","), true);
            ControlPoint[2] = FVector(FCString::Atoi(*(Coord[0])), FCString::Atoi(*(Coord[1])),0);
        }
        else if (Tokens[0] == "C1")
        {
            TArray<FString> Coord;
            Tokens[1].ParseIntoArray(Coord, TEXT(","), true);
            ControlPoint[1] = FVector(FCString::Atoi(*(Coord[0])), FCString::Atoi(*(Coord[1])), 0);
        }
        else if (Tokens[0] == "C2")
        {
            TArray<FString> Coord;
            Tokens[1].ParseIntoArray(Coord, TEXT(","), true);
            ControlPoint[3] = FVector(FCString::Atoi(*(Coord[0])), FCString::Atoi(*(Coord[1])), 0);
        }
    }
    TArray<FVector> BeizerPoint;
    FVector::EvaluateBezier(ControlPoint.GetData(),700, BeizerPoint);
    TArray<FColor>Pixels;
    Pixels.AddZeroed(H * W);
    FCreateTexture2DParameters Params;
    for(const FVector& Point : BeizerPoint)
    {
        int X = FMath::RoundToInt(Point.X);
        int Y = FMath::RoundToInt(Point.Y);
        if (X >= 0 && X < W && Y >= 0 && Y < H)
        {
            Pixels[Y * W + X] = FColor(255, 0, 0, 255);
        }
    }
    return FImageUtils::CreateTexture2D(W, H, Pixels, InParent, InName.ToString(), Flags, Params);


}