void GameObject::Physics(const float ticks)
{
DoPhysics(ticks);
GameObjectPtrList::iterator iter = m_children.begin();
for ( ; iter != m_children.end(); ++iter)
{
(*iter)->Physics(ticks);
}
}
void Particle::Update(float frametime) {
DoPhysics(frametime);
if (this->size > 2.0f)
this->size -= 6 * frametime;
else
this->size -= 2 * frametime;
if (this->color.Lightness > 0.66f)
this->color.Lightness -= frametime;
else
this->color.Lightness -= 0.33 * frametime;
}
void SpawnerParticle::Update(float frametime) {
DoPhysics(frametime);
if (lifetime > fuseTime && particles == NULL) {
Explode();
}
else if (particles != NULL) {
if (particles->Count() < maxParticles && lifetime < (maxLifetime - 2.0f))
SpawnParticle();
particles->Update(frametime);
}
}
void CollisionApp::DoFrame(double a_dt)
{
double frameRate = 1.0 / 60.0;
DoPhysics(frameRate);
Render();
double remaining = frameRate - a_dt;
if (remaining > 0.0)
{
int ms = int(remaining * 1000.0);
std::this_thread::sleep_for(std::chrono::milliseconds(ms));
}
}
/*!
*Main function which performs the window-creation action and calls main processing function called doPhysics
*@return hInstance, hPrevInstance, lpCmdLine, nCmdShow
*/
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_APPLICATION));
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wcex.lpszMenuName = NULL;
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_APPLICATION));
if (!RegisterClassEx(&wcex))
{
MessageBox(NULL,
_T("Call to RegisterClassEx failed!"),
_T("Win32 Guided Tour"),
NULL);
return 1;
}
hInst = hInstance; // Store instance handle in our global variable
// The parameters to CreateWindow explained:
// szWindowClass: the name of the application
// szTitle: the text that appears in the title bar
// WS_OVERLAPPEDWINDOW: the type of window to create
// CW_USEDEFAULT, CW_USEDEFAULT: initial position (x, y)
// 500, 100: initial size (width, length)
// NULL: the parent of this window
// NULL: this application does not have a menu bar
// hInstance: the first parameter from WinMain
// NULL: not used in this application
HWND hWnd = CreateWindow(
szWindowClass,
szTitle,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
800, 600,
NULL,
NULL,
hInstance,
NULL
);
if (!hWnd)
{
MessageBox(NULL,
_T("Call to CreateWindow failed!"),
_T("Win32 Guided Tour"),
NULL);
return 1;
}
// The parameters to ShowWindow explained:
// hWnd: the value returned from CreateWindow
// nCmdShow: the fourth parameter from WinMain
ShowWindow(hWnd,
nCmdShow);
UpdateWindow(hWnd);
MSG msg;
ULONGLONG prevTime = -1, curTime, deltaT;
StartGame();
// Enter the infinite message loop
while (TRUE)
{
// Check to see if any messages are waiting in the queue
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
// Translate the message and dispatch it to WindowProc()
TranslateMessage(&msg);
DispatchMessage(&msg);
}
// If the message is WM_QUIT, exit the while loop
if (msg.message == WM_QUIT)
break;
curTime = GetTickCount64();
if (prevTime == -1)
deltaT = 0;
else deltaT = curTime - prevTime;
prevTime = curTime;
DoPhysics(deltaT);
InvalidateRect(hWnd, NULL, 1);
}
return (int)msg.wParam;
}
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_APPLICATION));
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = NULL;
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_APPLICATION));
if (!RegisterClassEx(&wcex))
{
MessageBox(NULL,
_T("Call to RegisterClassEx failed!"),
_T("Win32 Guided Tour"),
NULL);
return 1;
}
hInst = hInstance; // Store instance handle in our global variable
/**
@function CreateWindow
@brief The function that creates the window.
@param szWindowClass The class name
@param szTitle Window Name
@param WS_OVERLAPPEDWINDOW: the type of window to create
@param CW_USEDEFAULT, CW_USEDEFAULT: initial position (x, y)
@param 800/700 The width and height of the window
@param NULL Handle to the parent window and menu handle
@param hInstance Handle to application instance
@param NULL Parameters transmitted from the WndProc
*/
HWND hWnd = CreateWindow(
szWindowClass,
szTitle,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
800, 700,
NULL,
NULL,
hInstance,
NULL
);
if (!hWnd)
{
MessageBox(NULL,
_T("Call to CreateWindow failed!"),
_T("Win32 Guided Tour"),
NULL);
return 1;
}
/**
@function ShowWindow
@brief Function to display the window.
@param hWnd Window Handle
@param nCmdShow Window Display Mode
*/
ShowWindow(hWnd,
nCmdShow);
/**
@function UpdateWindow
@brief Function to update the window.
@param hWnd Window Handle
*/
UpdateWindow(hWnd);
/// The main message loop
MSG msg;
ULONGLONG prevTime = -1, curTime, deltaT;
/// Call Start function
StartGame();
/// Enter the infinite message loop
while(TRUE)
{
/// Check to see if any messages are waiting in the queue
while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
/// Translate the message and dispatch it to WindowProc()
TranslateMessage(&msg);
DispatchMessage(&msg);
}
/// If the message is WM_QUIT, exit the while loop
if(msg.message == WM_QUIT)
break;
/// Removing the number of milliseconds that have elapsed since the system was launched
curTime = GetTickCount64();
/// Determination of the time change
if (prevTime == -1)
deltaT = 0;
else deltaT = curTime - prevTime;
prevTime = curTime;
/// Calling a function is responsible for the application physics
if(!pause){
DoPhysics(deltaT);
}
/// Calling a function that initiates a redraw window
InvalidateRect(hWnd,NULL,1);
}
return (int) msg.wParam;
}
