本文整理汇总了C++中game_display::update_display方法的典型用法代码示例。如果您正苦于以下问题：C++ game_display::update_display方法的具体用法？C++ game_display::update_display怎么用？C++ game_display::update_display使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类game_display的用法示例。
在下文中一共展示了game_display::update_display方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: fade_logo
/**
* Fade-in the wesnoth-logo.
*
* Animation-effect: scroll-in from right. \n
* Used only once, after the game is started.
*
* @param screen surface to operate on
* @param xpos x-position of logo
* @param ypos y-position of logo
*
* @return Result of running the routine
* @retval true operation finished (successful or not)
* @retval false operation failed (because modeChanged), need to retry
*/
static bool fade_logo(game_display& screen, int xpos, int ypos)
{
const surface logo(image::get_image(game_config::game_logo));
if(logo == NULL) {
ERR_DP << "Could not find game logo\n";
return true;
}
surface const fb = screen.video().getSurface();
if(fb == NULL || xpos < 0 || ypos < 0 || xpos + logo->w > fb->w || ypos + logo->h > fb->h) {
return true;
}
// Only once, when the game is first started, the logo fades in unless
// it was disabled in adv. preferences
static bool faded_in = !preferences::startup_effect();
// static bool faded_in = true; // for faster startup: mark logo as 'has already faded in'
CKey key;
bool last_button = key[SDLK_ESCAPE] || key[SDLK_SPACE];
LOG_DP << "fading logo in....\n";
LOG_DP << "logo size: " << logo->w << "," << logo->h << "\n";
for(int x = 0; x != logo->w; ++x) {
SDL_Rect srcrect = {x,0,1,logo->h};
SDL_Rect dstrect = {xpos+x,ypos,1,logo->h};
SDL_BlitSurface(logo,&srcrect,fb,&dstrect);
update_rect(dstrect);
if(!faded_in && (x%5) == 0) {
const bool new_button = key[SDLK_ESCAPE] || key[SDLK_SPACE] ||
key[SDLK_RETURN] || key[SDLK_KP_ENTER] ;
if(new_button && !last_button) {
faded_in = true;
}
last_button = new_button;
screen.update_display();
screen.delay(10);
events::pump();
if(screen.video().modeChanged()) {
faded_in = true;
return false;
}
}
}
LOG_DP << "logo faded in\n";
faded_in = true;
return true;
}