//Shows help screen
void showHelp()
{
Timer fpscap;
//Loads the image
SDL_Surface* img = NULL;
img = load_image("images/help.png");
//Check if image was loaded fine
if (img == NULL)
end_app(70);
//Applies image
apply_surface(0, 0, img, screen);
//Updates the screen and check against errors
if (SDL_Flip(screen) == -1)
{
end_app(71);
}
bool quit = false;
while (!quit)
{
fpscap.start();
//Handle all the generated events
while (SDL_PollEvent (&eventQ))
{
//Captures the type of event
switch (eventQ.type)
{
//If the user try to close the window
case SDL_QUIT:
//Exit the game
SDL_FreeSurface(img);
end_app();
break;
//If the user has pressed a key
case SDL_KEYDOWN:
//All this stuff only to check the Alt+F4
if( (eventQ.key.keysym.sym == SDLK_F4) //If the user was pressed F4
&& (eventQ.key.keysym.mod & KMOD_LALT) //and the left Alt key was pressed
&& !(eventQ.key.keysym.mod & KMOD_CTRL) //and the Ctrl key wasn't pressed
&& !(eventQ.key.keysym.mod & KMOD_SHIFT)) //and the Shift key wasn't pressed
{
end_app();
}
if (eventQ.key.keysym.sym == SDLK_ESCAPE) //If the user was pressed Esc
{
end_app();
}
//If user press 'F1', come back
if (eventQ.key.keysym.sym == SDLK_F1)
{
quit = true;
}
//If the 'M' key was pressed, stops/plays music
if (eventQ.key.keysym.sym == SDLK_m)
{
if(music)
{
Mix_HaltMusic();
music = false;
}
else
{
int tmp = Mix_PlayMusic (sndBgm, -1);
if(tmp != -1) music = true;
}
}
//If the 'F' key was pressed, enable/disable sound FX
if (eventQ.key.keysym.sym == SDLK_f)
{
soundFX = !soundFX;
}
}//events switch
}//events loop
//Keep the frame rate
if (fpscap.getTicks() < 1000 / LC_GAME_FPS)
SDL_Delay ( (1000 / LC_GAME_FPS) - fpscap.getTicks());
} //main loop
SDL_FreeSurface(img);
}//void showHelp()
void appmain(void){
*((char *) 0x00102600) = 0;
end_app();
}
//Frees the memory and closes system
void end_app()
{
end_app(0);
} //void end_app(int code)
