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#include "Screen.h"
Screen::Screen(unsigned int screenWidth, unsigned int screenHeight, bool fullscreen)
:_exitClicked(false),
_screenWidth(screenWidth),
_screenHeight(screenHeight),
_gameAreaWidth(_screenWidth*0.75),
_infoPanelWidth(_screenWidth - _gameAreaWidth)
{
if (fullscreen)
{
al_set_new_display_flags(ALLEGRO_FULLSCREEN_WINDOW);
if (!resolutionSupported())
{
al_show_native_message_box(NULL, "Fatal error", "Fatal error", "The fullscreen resolution specified in config.txt is not supported by your system. Please open config.txt and change the resolution to a supported resolution, or change fullscreen to false.", NULL, ALLEGRO_MESSAGEBOX_ERROR);
throw BadResolution();
}
}
else
{
al_set_new_display_flags(ALLEGRO_WINDOWED);
//need to add error checking for windows that are way too big
}
al_set_new_display_option(ALLEGRO_VSYNC, 1, ALLEGRO_SUGGEST);
_display = al_create_display(_screenWidth, _screenHeight);
al_hide_mouse_cursor(_display);
_windowEvents = al_create_event_queue();
al_register_event_source(_windowEvents, al_get_display_event_source(_display));
//used so that ESC can be pressed to exit.
al_register_event_source(_windowEvents, al_get_keyboard_event_source());
_font = al_load_font("junction 02.ttf", _screenWidth/10, 0);
if (_font == NULL)
{
al_show_native_message_box(NULL, "Fatal error", "Fatal error", "The file 'junction 02.ttf' was not found. Ensure that it is located in the working directory.", NULL, ALLEGRO_MESSAGEBOX_ERROR);
al_destroy_event_queue(_windowEvents);
al_destroy_display(_display);
throw InstallFailure();
}
ALLEGRO_BITMAP* front = al_get_backbuffer(_display);
al_flip_display();
ALLEGRO_BITMAP* back = al_get_backbuffer(_display);
_panels.push_back(new GamePanel(back, front, 0, 0, _gameAreaWidth, _screenHeight));
_panels.push_back(new InfoPanel(back, front, _gameAreaWidth, 0, _infoPanelWidth, _screenHeight));
}
Screen::~Screen()
{
for (vector<ScreenPanel*>::iterator iter = _panels.begin(); iter!=_panels.end(); ++iter)
{
delete (*iter);
}
_panels.clear();
al_destroy_font(_font);
al_destroy_event_queue(_windowEvents);
al_destroy_display(_display);
}
string Screen::getLevel()
{
string result("");
ALLEGRO_FILECHOOSER* filechooser = al_create_native_file_dialog(".", "Choose your level", "*.lvl",ALLEGRO_FILECHOOSER_FILE_MUST_EXIST);
al_show_native_file_dialog(_display, filechooser);
if (al_get_native_file_dialog_count(filechooser)==0)
{
_exitClicked = true;
}
else
{
result = al_get_native_file_dialog_path(filechooser, 0);
}
al_destroy_native_file_dialog(filechooser);
return result;
}
void Screen::draw(const Maze& maze, const list<PlayerCar>& players, const list<EnemyCar>& enemies, const list<Checkpoint>& checkpoints, const list<Rock>& rocks, const list<Smokescreen>& smokescreens, const list<DestroyedObjectPopup>& popups)
{
for (vector<ScreenPanel*>::iterator iter = _panels.begin(); iter!=_panels.end(); ++iter)
{
(*iter)->draw(maze, players, enemies, checkpoints, rocks, smokescreens, popups);
}
flip();
}
void Screen::flip()
{
al_flip_display();
for (vector<ScreenPanel*>::iterator iter = _panels.begin(); iter!=_panels.end(); ++iter)
{
(*iter)->flip();
}
}
void Screen::drawWin()
{
flip();
ALLEGRO_COLOR transBlack = al_map_rgba(0,0,0,200);
al_draw_filled_rectangle(0,0,_screenWidth,_screenHeight, transBlack);
ALLEGRO_COLOR textColour = al_map_rgb(255,255,255);
al_draw_text(_font, textColour, _screenWidth/2, _screenHeight/2, ALLEGRO_ALIGN_CENTRE , "You win!");
flip();
}
void Screen::drawLoss()
{
flip();
ALLEGRO_COLOR transBlack = al_map_rgba(0,0,0,200);
al_draw_filled_rectangle(0,0,_screenWidth,_screenHeight, transBlack);
ALLEGRO_COLOR textColour = al_map_rgb(255,255,255);
al_draw_text(_font, textColour, _screenWidth/2, _screenHeight/2, ALLEGRO_ALIGN_CENTRE , "You lose!");
flip();
}
bool Screen::exitClicked()
{
if (_exitClicked) return true;
ALLEGRO_EVENT event;
while (al_get_next_event(_windowEvents, &event))
{
if (event.type==ALLEGRO_EVENT_DISPLAY_CLOSE || (event.type==ALLEGRO_EVENT_KEY_CHAR && event.keyboard.keycode==ALLEGRO_KEY_ESCAPE))
{
al_flush_event_queue(_windowEvents);
_exitClicked = true;
return true;
}
}
return false;
}
bool Screen::resolutionSupported()
{
ALLEGRO_DISPLAY_MODE mode;
for (int i=0; i<al_get_num_display_modes(); ++i)
{
al_get_display_mode(i, &mode);
if (static_cast<unsigned int>(mode.width)==_screenWidth && static_cast<unsigned int>(mode.height)==_screenHeight)
{
return true;
}
}
return false;
}
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