windows下基于timer的刷新不可靠

[eminom]

UpdateWindow之后是不是应该用如下代码刷新：
MSG msg;
while (1)
{
if (! PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
ejoy2d_win_update();
InvalidateRect(wnd, NULL , FALSE);
if (WM_QUIT == msg.message)
{
break;
}
continue;
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}

在我的机器上（Win7, Intel i3）上动画不能正常播放。

[sharpdigger]

你这是能跑多快跑多快的节奏啊！

2014-04-18 17:24 GMT+08:00 Hai Bai notifications@github.com:

UpdateWindow之后是不是应该用如下代码刷新：
MSG msg;
while (1)
{
if (! PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
ejoy2d_win_update();
InvalidateRect(wnd, NULL , FALSE);
if (WM_QUIT == msg.message)
{
break;
}
continue;
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}

在我的机器上（Win7, Intel i3）上动画不能正常播放。

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/47
.

[eminom]

void
ejoy2d_win_update() {
static int ifirst = 1;
static DWORD last_tick = 0;
if(ifirst){
last_tick = GetTickCount();
ifirst = 0;
}
DWORD dwNow = GetTickCount();
float delta = 1.0f * (dwNow - last_tick) / 1000;
last_tick = dwNow;
//ejoy2d_game_update(G->game, 0.01f); //之前是hardcode的0.01
ejoy2d_game_update(G->game, delta);
}
这样就可以了。