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// GameEngine.cpp - Game Engine Source
#include "Bitmap.hpp"
#include "GameEngine.hpp"
GameEngine* GameEngine::m_pGameEngine = NULL;
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)
{
if (GameInitialize(hInstance) == S_OK)
{
if (GameEngine::GetEngine()->Initialize(iCmdShow) != S_OK)
{
return E_FAIL;
}
HACCEL hAccel = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDR_ACCELERATORS));
if (hAccel == NULL)
{
MessageBox(NULL, TEXT("Unable to Load the Accelerators!"), GameEngine::GetEngine()->GetTitle(), MB_OK | MB_ICONERROR);
return E_FAIL;
}
MSG msg;
while (TRUE)
{
if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) != 0)
{
if (msg.message == WM_QUIT)
{
break;
}
if (0 == TranslateAccelerator(GameEngine::GetEngine()->GetWindow(), hAccel, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
else
{
if (GameEngine::GetEngine()->GetSleep() == FALSE)
{
static UINT iTickTrigger = 0;
UINT iTickCount = GetTickCount();
if (iTickCount > iTickTrigger)
{
iTickTrigger = iTickCount + GameEngine::GetEngine()->GetFrameDelay();
GameCycle();
}
}
}
}
return (int) msg.wParam;
}
GameEnd();
return S_OK;
}
LRESULT CALLBACK WndProc(HWND hWindow, UINT msg, WPARAM wParam, LPARAM lParam)
{
return GameEngine::GetEngine()->HandleEvent(hWindow, msg, wParam, lParam);
}
BOOL CALLBACK DlgProc(HWND hDialog, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDOK:
EndDialog(hDialog, 0);
return TRUE;
}
}
return FALSE;
}
GameEngine::GameEngine(HINSTANCE hInstance, LPCTSTR szWindowClass, LPCTSTR szTitle,
WORD wIcon, WORD wSmallIcon, UINT iWidth, UINT iHeight)
{
m_pGameEngine = this;
m_hInstance = hInstance;
m_hWindow = NULL;
m_wIcon = wIcon;
m_wSmallIcon = wSmallIcon;
m_iWidth = iWidth;
m_iHeight = iHeight;
m_iFrameDelay = 50;
m_bSleep = TRUE;
size_t pcch = 0;
HRESULT hRes = StringCchLength(szWindowClass, str_length, &pcch);
if (pcch > 0)
{
StringCchCopy(m_szWindowClass, str_length, szWindowClass);
}
else
{
StringCchCopy(m_szWindowClass, str_length,TEXT(""));
}
hRes = StringCchLength(szTitle, str_length, &pcch);
if (pcch > 0)
{
StringCchCopy(m_szTitle, str_length, szTitle);
}
else
{
StringCchCopy(m_szTitle, str_length, TEXT(""));
}
}
GameEngine::~GameEngine()
{
}
HRESULT GameEngine::Initialize(int iCmdShow)
{
WNDCLASSEX wc;
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = m_hInstance;
wc.hIcon = (HICON) LoadImage(m_hInstance, MAKEINTRESOURCE(IDI_ICON), IMAGE_ICON, 0, 0, LR_DEFAULTCOLOR);
wc.hIconSm = (HICON) LoadImage(m_hInstance, MAKEINTRESOURCE(IDI_ICON_SM), IMAGE_ICON, 0, 0, LR_DEFAULTCOLOR);;
wc.hCursor = (HCURSOR) LoadImage(NULL, IDC_ARROW, IMAGE_CURSOR, 0, 0, LR_SHARED);
wc.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
wc.lpszMenuName = MAKEINTRESOURCE(IDR_MENU);
wc.lpszClassName = m_szWindowClass;
if (RegisterClassEx(&wc) == 0)
{
MessageBox(NULL, TEXT("Unable to initialize Main Window!"), TEXT("ERROR"), MB_ICONERROR | MB_OK);
return E_FAIL;
}
UINT iWindowWidth = m_iWidth + GetSystemMetrics(SM_CXFIXEDFRAME) * 2;
UINT iWindowHeight = m_iHeight + GetSystemMetrics(SM_CYFIXEDFRAME) * 2 + GetSystemMetrics(SM_CYCAPTION);
iWindowWidth += 10;
iWindowHeight += 10;
if (wc.lpszMenuName != NULL)
{
iWindowHeight += GetSystemMetrics(SM_CYMENU);
}
UINT iWindowPosX = (GetSystemMetrics(SM_CXSCREEN) - iWindowWidth) / 2;
UINT iWindowPosY = (GetSystemMetrics(SM_CYSCREEN) - iWindowHeight) / 2;
m_hWindow = CreateWindow(m_szWindowClass, m_szTitle,
WS_POPUPWINDOW | WS_CAPTION | WS_MINIMIZEBOX,
iWindowPosX, iWindowPosY,
iWindowWidth, iWindowHeight,
NULL, NULL, m_hInstance, NULL);
if (m_hWindow == NULL)
{
MessageBox(NULL, TEXT("Unable to create Main Window!"), TEXT("ERROR"), MB_ICONERROR | MB_OK);
return E_FAIL;
}
ShowWindow(m_hWindow, iCmdShow);
UpdateWindow(m_hWindow);
return S_OK;
}
LRESULT GameEngine::HandleEvent(HWND hWindow, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch (msg)
{
case WM_CREATE:
SetWindow(hWindow);
GameStart(hWindow);
return 0;
case WM_ACTIVATE:
if (wParam != WA_INACTIVE)
{
GameActivate(hWindow);
SetSleep(FALSE);
}
else
{
GameDeactivate(hWindow);
SetSleep(TRUE);
}
return 0;
case WM_COMMAND:
GameMenu(wParam);
return 0;
case WM_PAINT:
HDC hDC;
PAINTSTRUCT ps;
hDC = BeginPaint(hWindow, &ps);
GamePaint(hDC);
EndPaint(hWindow, &ps);
return 0;
case WM_DESTROY:
GameEnd();
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hWindow, msg, wParam, lParam);
}
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