// Update the demo
void Demo::Update()
{
Demo* pDemo = Demo::privGetInstance();
UNUSED(pDemo);
// Need to keep track of elapsed time
static clock_t currTime;
currTime = clock();
static clock_t lastTime = currTime;
float elapsedTime = (float) (currTime - lastTime) / CLOCKS_PER_SEC;
elapsedTime;
lastTime = currTime;
// Max frame time
if (elapsedTime >= 0.05f) elapsedTime = 0.05f;
// First check to see if time is slowed
pDemo->privCheckSlowTime(elapsedTime);
// Move at one tenth speed if so
if (pDemo->timeSlowed)
{
elapsedTime *= 0.10f;
}
// Adjust crosshair position
pDemo->privMoveCrosshairs(elapsedTime);
// Fire bullet
pDemo->privFireBullet(elapsedTime);
// update our bullet
pDemo->bullet.Update(elapsedTime);
// update our bricks
for (int i = 0; i < NUM_BRICKS; i++)
{
pDemo->bricks[i].Update(elapsedTime);
}
// Check for any collisions and handle them
pDemo->privCheckCollisions(elapsedTime);
// Check if space bar is pressed
// If so reset the demo
short space = GetKeyState(0x20);
bool spacePressed = (space & 0x80) != 0;
if (spacePressed) pDemo->privReset();
};
// Run the demo
void Demo::Run()
{
// Get the instance
Demo *p = Demo::privGetInstance();
p->running = true;
p->privReset();
// Main message loop
MSG msg = { 0 };
// Game Loop until an exit
while (p->running)
{
// Check messages
if (PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
if (WM_QUIT == msg.message)
{
p->Quit();
continue;
}
}
else
{
// called once per frame, update data, transformations, etc
p->Update();
// called once per frame, only do rendering here
p->Draw();
}
}
};
