From 98ba22e7064db57316dfff1ae127feb3dceeb73e Mon Sep 17 00:00:00 2001
From: Justin Worthe <justin.worthe@entelect.co.za>
Date: Thu, 31 Jul 2014 13:58:22 +0200
Subject: Initial commit

---
 source/presentation/Screen.cpp | 159 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 159 insertions(+)
 create mode 100644 source/presentation/Screen.cpp

(limited to 'source/presentation/Screen.cpp')

diff --git a/source/presentation/Screen.cpp b/source/presentation/Screen.cpp
new file mode 100644
index 0000000..0f5ba4c
--- /dev/null
+++ b/source/presentation/Screen.cpp
@@ -0,0 +1,159 @@
+#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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