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ue4打印大全 使用例子 示例代码

admin 1月 29, 2021 0

都是自描述性的且项目无关的, 可以直接放心使用.

. . .

使用例子

覆盖了以下几种场合 :

  • Example usage: A_LOG();
  • Example usage: A_LOG_1( “Action!” );
  • Example usage: A_LOG_2(“Action!”, “Cut!”);
  • Example usage: A_LOG_N(“Action!”, 88.f);
  • Example usage: A_LOG_M(“Action! %f, %d”, 88.f, 88);

示例代码

PrintHelper.h
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#define ACTION_SHOW_DEBUG_SCREEN_MSG                    false
#define ACTION_SHOW_DEBUG_OUTPUT_LOG                    false
#define ACTION_SHOW_DEBUG_OUTPUT_LOG_EXTRA              false


//Current Class Name + Function Name where this is called!
#define STR_CUR_CLASS_FUNC                          (FString(__FUNCTION__))

//Current Class where this is called!
#define STR_CUR_CLASS                               (FString(__FUNCTION__).Left(FString(__FUNCTION__).Find(TEXT(":"))) )

//Current Function Name where this is called!
#define STR_CUR_FUNC                              (FString(__FUNCTION__).Right(FString(__FUNCTION__).Len() - FString(__FUNCTION__).Find(TEXT("::")) - 2 ))

//Current Line Number in the code where this is called!
#define STR_CUR_LINE                                (FString::FromInt(__LINE__))

//Current Class and Line Number where this is called!
#define STR_CUR_CLASS_LINE                         (STR_CUR_CLASS + "(" + STR_CUR_LINE + ")")

//Current Class and Line Number where this is called!
#define STR_CUR_CLASS_FUNC_LINE                        (STR_CUR_CLASS_FUNC + "(" + STR_CUR_LINE + ")")

//Current Function Signature where this is called!
#define STR_CUR_FUNCSIG                              (FString(__FUNCSIG__))


////////////// Screen Message
//     Gives you the Class name and exact line number where you print a message to yourself!


#define A_MSG(TimeToDisplay )                             if (ACTION_SHOW_DEBUG_SCREEN_MSG) (GEngine->AddOnScreenDebugMessage(-1, (float)TimeToDisplay, FColor::Red, *(STR_CUR_CLASS_FUNC_LINE )) )

#define A_MSG_1(TimeToDisplay, StringParam1)                        if (ACTION_SHOW_DEBUG_SCREEN_MSG) (GEngine->AddOnScreenDebugMessage(-1, (float)TimeToDisplay, FColor::Red, *(STR_CUR_CLASS_FUNC_LINE + "  :  " + StringParam1)) )

#define A_MSG_2(TimeToDisplay, StringParam1, StringParam2)                 if (ACTION_SHOW_DEBUG_SCREEN_MSG) (GEngine->AddOnScreenDebugMessage(-1, (float)TimeToDisplay, FColor::Red, *(STR_CUR_CLASS_FUNC_LINE + "  :  " + StringParam1 + "      " + StringParam2)) )

//#define A_SCREENMSG_F(StringParam1, NumericalParam2)           if (ACTION_SHOW_DEBUG_SCREEN_MSG) (GEngine->AddOnScreenDebugMessage(-1, (float)TimeToDisplay, FColor::Red, *(STR_CUR_CLASS_FUNC_LINE + "  :  " + StringParam1 + "      " + FString::SanitizeFloat(NumericalParam2))) )
#define A_MSG_N(TimeToDisplay, StringParam1, NumericalParam2)           if (ACTION_SHOW_DEBUG_SCREEN_MSG) (GEngine->AddOnScreenDebugMessage(-1, (float)TimeToDisplay, FColor::Red, FString::Printf( TEXT("%s  :  %s    %f"), *STR_CUR_CLASS_FUNC_LINE, *FString(StringParam1), float(NumericalParam2) ) ) )

#define A_MSG_M(TimeToDisplay, FormatString, ...)          if (ACTION_SHOW_DEBUG_SCREEN_MSG) (GEngine->AddOnScreenDebugMessage(-1, (float)TimeToDisplay, FColor::Red, FString::Printf( TEXT("%s  :  %s"), *STR_CUR_CLASS_FUNC_LINE, *FString::Printf(TEXT(FormatString), ##__VA_ARGS__ ) ) ) )



///////// UE LOG!

// Example usage: A_LOG();
#define  A_LOG()                                     if (ACTION_SHOW_DEBUG_OUTPUT_LOG) UE_LOG(LogTemp, Warning, TEXT("%s"), *STR_CUR_CLASS_FUNC_LINE )

// Example usage: A_LOG_1( "Action!" );
#define A_LOG_1(StringParam1)                                if (ACTION_SHOW_DEBUG_OUTPUT_LOG) UE_LOG(LogTemp, Warning, TEXT("%s  :  %s"), *STR_CUR_CLASS_FUNC_LINE, *FString(StringParam1))

// Example usage: A_LOG_2("Action!", "Cut!");
#define A_LOG_2(StringParam1, StringParam2)                      if (ACTION_SHOW_DEBUG_OUTPUT_LOG) UE_LOG(LogTemp, Warning, TEXT("%s  :  %s     %s"), *STR_CUR_CLASS_FUNC_LINE, *FString(StringParam1), *FString(StringParam2))

// Example usage: A_LOG_N("Action!", 88.f);
#define A_LOG_N(StringParam1, NumericalParam2)              if (ACTION_SHOW_DEBUG_OUTPUT_LOG) UE_LOG(LogTemp, Warning, TEXT("%s  :  %s    %f"), *STR_CUR_CLASS_FUNC_LINE, *FString(StringParam1), float(NumericalParam2) )

// 
#define A_LOG_M(FormatString, ...)                  if (ACTION_SHOW_DEBUG_OUTPUT_LOG) UE_LOG(LogTemp, Warning, TEXT("%s  :  %s"), *STR_CUR_CLASS_FUNC_LINE, *FString::Printf(TEXT(FormatString), ##__VA_ARGS__ ) )

class 
{
public:

    static void ScreenMsg( const FString& Msg );
 static void ScreenMsg( const FString& Msg, const FString& Msg2 );
   static void ScreenMsg( const FString& Msg, const float FloatValue );
};
PrintHelper.cpp
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#include "PrintHelper.h"


//ScreenMsg
void PrintHelper::ScreenMsg( const FString& Msg )
{
  if (!ACTION_SHOW_DEBUG_SCREEN_MSG) return;
 GEngine->AddOnScreenDebugMessage( -1, 55.f, FColor::Red, *Msg );
}

void PrintHelper::ScreenMsg( const FString& Msg, const FString& Msg2 )
{
 if (!ACTION_SHOW_DEBUG_SCREEN_MSG) return;
 GEngine->AddOnScreenDebugMessage( -1, 55.f, FColor::Red, FString::Printf( TEXT( "%s %s" ), *Msg, *Msg2 ) );
}

void PrintHelper::ScreenMsg( const FString& Msg, const float Value )
{
   if (!ACTION_SHOW_DEBUG_SCREEN_MSG) return;
 GEngine->AddOnScreenDebugMessage( -1, 55.f, FColor::Red, FString::Printf( TEXT( "%s %f" ), *Msg, Value ) );
}
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