Original Post
I wanted a reset button, just like on my Playstation. But I think you have to flush the input buffer? But I can't find a flush function ... heres my code. [NOTE: DXTRACE() is just a macro for debugging]
//
#define DX_HELPER_RELEASE(x) if((x) != NULL) { (x)->Release(); (x) = NULL; }
//
#define DI_HELPER_RELEASE(x) if((x) != NULL) { (x)->Unacquire(); (x)->Release(); (x) = NULL; }
//
#define KEYDOWN(x,key) ( (x[key]) & 0x80 )
//
#define KEYUP(x,key) ( !(KEYDOWN(x,key)) )
//
#define NUM_KEYS 256
//
static IDirectInput8 *g_DI = NULL;
static IDirectInputDevice8 *g_DIDevice = NULL;
static byte g_kbBuffer[NUM_KEYS];
//
void INDX_Init()
{
DXTRACE( DirectInput8Create( sysw_hinst, DIRECTINPUT_VERSION,
IID_IDirectInput8, (void**)&g_DI, NULL) );
DXTRACE( g_DI->CreateDevice( GUID_SysKeyboard, &g_DIDevice, NULL) );
DXTRACE( g_DIDevice->SetDataFormat( &c_dfDIKeyboard) );
DXTRACE( g_DIDevice->SetCooperativeLevel( sysw_hwnd,
DISCL_FOREGROUND | DISCL_NONEXCLUSIVE) );
while( g_DIDevice->Acquire() == DIERR_INPUTLOST );
}
//
void INDX_Shutdown()
{
DI_HELPER_RELEASE(g_DIDevice);
DX_HELPER_RELEASE(g_DI);
}
//
void INDX_Reset()
{
INDX_Shutdown();
INDX_Init();
}
//
void INDX_Frame()
{
ASSERT(g_DIDevice);
ZeroMemory((void*)g_kbBuffer, NUM_KEYS);
if(FAILED( g_DIDevice->GetDeviceState(NUM_KEYS, g_kbBuffer) ))
{
while( g_DIDevice->Acquire() == DIERR_INPUTLOST );
}
if(KEYDOWN(g_kbBuffer, DIK_UP))
{
GAME_MoveSnake(e_up);
}
else if(KEYDOWN(g_kbBuffer, DIK_DOWN))
{
GAME_MoveSnake(e_down);
}
if(KEYDOWN(g_kbBuffer, DIK_LEFT))
{
GAME_MoveSnake(e_left);
}
else if(KEYDOWN(g_kbBuffer, DIK_RIGHT))
{
GAME_MoveSnake(e_right);
}
}
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