i´m using threads and callbacks and each of the "intelligent" objects has it's own while loop.
http://www.tek-tips.com/viewthread.cfm?qid=1068278
Code: Select all
static DWORD _stdcall SomeClass::NewThread(void *param)
{
SomeClass* self = (SomeClass*) param;
return self->NewThread ();
}
SomeClass::SomeClass()
{
....code....
hThread=CreateThread (NULL, 0, SomeClass::NewThread, this, 0, &dwThreadID));
}
// This is called from the static function and has no parameters
DWORD SomeClass::NewThread ()
{
while(true)
{
.
..
...
}
return whatever;
}
};
http://www.codeguru.com/cpp/w-d/dislog/ ... erview.htm
http://msdn.microsoft.com/en-us/library ... s.85).aspx <--- correced link
(this example show how to pass initial arguments/parameters to a thread funcion, but you need to upper example using the (this) parameter to run a class itßs it own thread.
Code: Select all
#include <windows.h>
#include <tchar.h>
#include <strsafe.h>
#define MAX_THREADS 3
#define BUF_SIZE 255
DWORD WINAPI MyThreadFunction( LPVOID lpParam );
void ErrorHandler(LPTSTR lpszFunction);
// Sample custom data structure for threads to use.
// This is passed by void pointer so it can be any data type
// that can be passed using a single void pointer (LPVOID).
typedef struct MyData {
int val1;
int val2;
} MYDATA, *PMYDATA;
int _tmain()
{
PMYDATA pDataArray[MAX_THREADS];
DWORD dwThreadIdArray[MAX_THREADS];
HANDLE hThreadArray[MAX_THREADS];
// Create MAX_THREADS worker threads.
for( int i=0; i<MAX_THREADS; i++ )
{
// Allocate memory for thread data.
pDataArray[i] = (PMYDATA) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(MYDATA));
if( pDataArray[i] == NULL )
{
// If the array allocation fails, the system is out of memory
// so there is no point in trying to print an error message.
// Just terminate execution.
ExitProcess(2);
}
// Generate unique data for each thread to work with.
pDataArray[i]->val1 = i;
pDataArray[i]->val2 = i+100;
// Create the thread to begin execution on its own.
hThreadArray[i] = CreateThread(
NULL, // default security attributes
0, // use default stack size
MyThreadFunction, // thread function name
pDataArray[i], // argument to thread function
0, // use default creation flags
&dwThreadIdArray[i]); // returns the thread identifier
// Check the return value for success.
// If CreateThread fails, terminate execution.
// This will automatically clean up threads and memory.
if (hThreadArray[i] == NULL)
{
ErrorHandler(TEXT("CreateThread"));
ExitProcess(3);
}
} // End of main thread creation loop.
// Wait until all threads have terminated.
WaitForMultipleObjects(MAX_THREADS, hThreadArray, TRUE, INFINITE);
// Close all thread handles and free memory allocations.
for(int i=0; i<MAX_THREADS; i++)
{
CloseHandle(hThreadArray[i]);
if(pDataArray[i] != NULL)
{
HeapFree(GetProcessHeap(), 0, pDataArray[i]);
pDataArray[i] = NULL; // Ensure address is not reused.
}
}
return 0;
}
DWORD WINAPI MyThreadFunction( LPVOID lpParam )
{
HANDLE hStdout;
PMYDATA pDataArray;
TCHAR msgBuf[BUF_SIZE];
size_t cchStringSize;
DWORD dwChars;
// Make sure there is a console to receive output results.
hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
if( hStdout == INVALID_HANDLE_VALUE )
return 1;
// Cast the parameter to the correct data type.
// The pointer is known to be valid because
// it was checked for NULL before the thread was created.
pDataArray = (PMYDATA)lpParam;
// Print the parameter values using thread-safe functions.
StringCchPrintf(msgBuf, BUF_SIZE, TEXT("Parameters = %d, %d\n"),
pDataArray->val1, pDataArray->val2);
StringCchLength(msgBuf, BUF_SIZE, &cchStringSize);
WriteConsole(hStdout, msgBuf, (DWORD)cchStringSize, &dwChars, NULL);
return 0;
}
void ErrorHandler(LPTSTR lpszFunction)
{
// Retrieve the system error message for the last-error code.
LPVOID lpMsgBuf;
LPVOID lpDisplayBuf;
DWORD dw = GetLastError();
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
dw,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &lpMsgBuf,
0, NULL );
// Display the error message.
lpDisplayBuf = (LPVOID)LocalAlloc(LMEM_ZEROINIT,
(lstrlen((LPCTSTR) lpMsgBuf) + lstrlen((LPCTSTR) lpszFunction) + 40) * sizeof(TCHAR));
StringCchPrintf((LPTSTR)lpDisplayBuf,
LocalSize(lpDisplayBuf) / sizeof(TCHAR),
TEXT("%s failed with error %d: %s"),
lpszFunction, dw, lpMsgBuf);
MessageBox(NULL, (LPCTSTR) lpDisplayBuf, TEXT("Error"), MB_OK);
// Free error-handling buffer allocations.
LocalFree(lpMsgBuf);
LocalFree(lpDisplayBuf);
}
So the callback from the Enemy class fires in the Game class and from there you can send a message to any subclass again.
the tread stuff isn't that hard ... my enemy pixel follows the mouse autonomously (hence it´s own while loop) .... but i still need input on how to creatre stuff (classes) dynamic ... old enemies die and new appear.
about the asset folder ... i did spend some time looking the project settings and open the *.vproj in notepad to see if anything can be adjusted there ... but only briefly ... and sofar i ddn't see anything that could be adjusted easily.
