diff options
| -rw-r--r-- | src/common.hh | 18 | ||||
| -rw-r--r-- | src/stubs.hh | 1 | ||||
| -rw-r--r-- | src/util.cc | 23 |
3 files changed, 41 insertions, 1 deletions
diff --git a/src/common.hh b/src/common.hh index e113e41..58a28c3 100644 --- a/src/common.hh +++ b/src/common.hh @@ -134,6 +134,8 @@ void SetErrorFunction(TErrorFunction *Function); void SetPrintFunction(TPrintFunction *Function); void error(const char *Text, ...) ATTR_PRINTF(1, 2); void print(int Level, const char *Text, ...) ATTR_PRINTF(2, 3); +int random(int Min, int Max); +bool FileExists(const char *FileName); bool isSpace(int c); bool isAlpha(int c); @@ -147,6 +149,22 @@ int stricmp(const char *s1, const char *s2, int Max = INT_MAX); char *findFirst(char *s, char c); char *findLast(char *s, char c); +template<typename T> +void RandomShuffle(T *Buffer, int Size){ + if(Buffer == NULL){ + error("RandomShuffle: Buffer ist NULL.\n"); + return; + } + + int Max = Size - 1; + for(int Min = 0; Min < Max; Min += 1){ + int Swap = random(Min, Max); + if(Swap != Min){ + std::swap(Buffer[Min], Buffer[Swap]); + } + } +} + struct TReadStream { // VIRTUAL FUNCTIONS // ========================================================================= diff --git a/src/stubs.hh b/src/stubs.hh index 72c898d..bc89d12 100644 --- a/src/stubs.hh +++ b/src/stubs.hh @@ -26,7 +26,6 @@ extern void CronExpire(Object Obj, int Delay); extern uint32 CronInfo(Object Obj, bool Delete); extern uint32 CronStop(Object Obj); extern void DeleteDynamicString(uint32 Number); -extern bool FileExists(const char *FileName); extern TCreature *GetCreature(uint32 CreatureID); extern const char *GetDynamicString(uint32 Number); extern TConnection *GetFirstConnection(void); diff --git a/src/util.cc b/src/util.cc index 418fb98..e0e335b 100644 --- a/src/util.cc +++ b/src/util.cc @@ -1,5 +1,7 @@ #include "common.hh" +#include <sys/stat.h> + static void (*ErrorFunction)(const char *Text) = NULL; static void (*PrintFunction)(int Level, const char *Text) = NULL; @@ -41,6 +43,27 @@ void print(int Level, const char *Text, ...){ } } +int random(int Min, int Max){ + int Range = (Max - Min) + 1; + int Result = Min; + if(Range > 0){ + Result += rand() % Range; + } + return Result; +} + +bool FileExists(const char *FileName){ + struct stat Buffer; + bool Result = true; + if(stat(FileName, &Buffer) != 0){ + if(errno != ENOENT){ + error("FileExists: Unerwarteter Fehlercode %d.\n", errno); + } + Result = false; + } + return Result; +} + // String Utility // ============================================================================= bool isSpace(int c){ |