[Add] Temp desktop background and clock widget.

client/src/game_state.cpp

@@ -57,6 +57,8 @@ void GameState::init(int screen_width, int screen_height) {
 }
 
 void GameState::start_single_player_now(int screen_width, int screen_height) {
+  _screen_width   = screen_width;
+  _screen_height  = screen_height;
   fprintf(stdout, "Starting in single-player mode...\n");
   std::thread server_thread(&GameState::_run_server, this);
   server_thread.detach();

client/src/main.cpp

@@ -106,7 +106,7 @@ int main(int argc, char** argv) {
     }
 
     /* Clear screen. */
-    glClearColor(0.1f, 0.1f, 0.1, 1.0f);
+    glClearColor(0.04f, 0.05f, 0.06, 1.0f);
     glClear(GL_COLOR_BUFFER_BIT);
 
     game_state->render(shape_renderer_instance, txt_render_instance, SCREEN_HEIGHT, show_cursor);

client/src/ui/desktop.cpp

@@ -1,5 +1,7 @@
 #include <algorithm>
 #include <ctime>
+#include <fstream>
+#include <cmath>
 #include <memory>
 
 #include "desktop.h"
@@ -12,9 +14,35 @@
 #include <ui/cursor_manager.h>
 #include "ui/ui_window.h"
 
+static const std::string& get_random_snippet(const std::vector<std::string>& snippets) {
+  if(snippets.empty()) {
+    static const std::string err = "ERR";
+    return err;
+  }
+  return snippets[rand() % snippets.size()];
+}
+
 Desktop::Desktop(int screen_width, int screen_height) {
   _taskbar = std::make_unique<Taskbar>(screen_width, screen_height);
   _focused_window = nullptr;
+
+  /* Load snippets for temp wallpaper. */
+  std::ifstream snippet_file("assets/menu_background_snippets.txt");
+  if(snippet_file.is_open()) {
+    std::string line;
+    while(std::getline(snippet_file, line)) {
+      if(!line.empty()) { _snippets.push_back(line); }
+    }
+  }
+
+  /* Init animated background. */
+  srand(time(NULL));
+  for(int i = 0; i < 100; ++i) {
+    _background_text.push_back(
+      {get_random_snippet(_snippets), (float)(rand() % screen_width),
+      (float)(rand() % screen_height),
+      (float)(rand() % 30 + 10) / 100.0f});
+  }
 }
 
 /* Desktop owns UIWindow, make sure we delete them. */
@@ -106,9 +134,16 @@ void Desktop::handle_event(SDL_Event* event, int screen_width, int screen_height
 
 void Desktop::update(void) {
   /* Remove closed windows. */
-  _windows.erase(
-    std::remove_if(_windows.begin(), _windows.end(),
-      [](const std::unique_ptr<UIWindow>& w) { return w->should_close(); }),
+  _windows.erase(std::remove_if(_windows.begin(), _windows.end(),
+                                [this](const std::unique_ptr<UIWindow>& w) {
+                                  if (w->should_close()) {
+                                    if (w.get() == _focused_window) {
+                                      _focused_window = nullptr;
+                                    }
+                                    return true;
+                                  }
+                                  return false;
+                                }),
                  _windows.end());
 }
 
@@ -118,7 +153,7 @@ UIWindow* Desktop::get_focused_window(void) {
 
 void Desktop::render(ShapeRenderer* shape_renderer, TextRenderer* txt_renderer,
                      int screen_height, bool show_cursor) {
-  /* TODO: Render wallpaper here. */
+  _render_wallpaper(txt_renderer);
   _taskbar->render(shape_renderer, txt_renderer, _windows, _focused_window);
   for(const auto& win : _windows) {
     if(!win->is_minimized()) {
@@ -126,3 +161,18 @@ void Desktop::render(ShapeRenderer* shape_renderer, TextRenderer* txt_renderer,
     }
   }
 }
+
+void Desktop::_render_wallpaper(TextRenderer* txt_renderer) {
+  const Color wallpaper_color = { 0.0f, 0.15f, 0.08f };
+  for(auto& line : _background_text) {
+    line.y -= line.speed;
+    if(line.y < 0) {
+      line.y = 720;                     /* TODO: Use screen_height. */
+      line.x = (float)(rand() % 1280);  /* TODO: Use screen_width. */
+      line.text = get_random_snippet(_snippets);
+    }
+    /* Round positions to nearest int to prevent jitter. */
+    txt_renderer->render_text(line.text.c_str(), std::round(line.x),
+                              std::round(line.y), 1.0f, wallpaper_color);
+  }
+}

client/src/ui/desktop.h

@@ -9,6 +9,14 @@
 #include "ui/ui_window.h"
 #include "ui/taskbar.h"
 
+/* Animated background stuff. */
+struct ScollingText {
+  std::string text;
+  float x;
+  float y;
+  float speed;
+};
+
 class Desktop {
 public:
   Desktop(int screen_width, int screen_height);
@@ -24,7 +32,11 @@ public:
 
 private:
   void _set_focused_window(UIWindow* window);
+  void _render_wallpaper(TextRenderer* txt_renderer);
+
   std::vector<std::unique_ptr<UIWindow>> _windows;
   std::unique_ptr<Taskbar>  _taskbar;
   UIWindow*                 _focused_window;
+  std::vector<ScollingText> _background_text;
+  std::vector<std::string>  _snippets;
 };

client/src/ui/main_menu.cpp

@@ -8,7 +8,7 @@
 #include "main_menu.h"
 
 /* Get a random snippet form loaded word list. */
-const std::string& get_random_snippet(const std::vector<std::string>& snippets) {
+static const std::string& get_random_snippet(const std::vector<std::string>& snippets) {
   /* If empty, return a default to avoid a crash? */
   if(snippets.empty()) {
     static const std::string empty_str = "ERROR: snippets file not found";

client/src/ui/taskbar.cpp

@@ -1,5 +1,10 @@
 #include "taskbar.h"
 #include <memory>
+#include <chrono>
+#include <ctime>
+#include <iomanip>
+#include <sstream>
+
 #include "gfx/shape_renderer.h"
 #include "gfx/txt_renderer.h"
 #include "gfx/types.h"
@@ -39,6 +44,16 @@ void Taskbar::render(ShapeRenderer* shape_renderer, TextRenderer* txt_renderer,
     txt_renderer->render_text(window->get_title().c_str(), x_offset + 10, 
                               _y_pos + 11, 1.0f, button_text_color);
     x_offset += button_width + padding;
+
+    /* Draw clock. */
+    auto now = std::chrono::system_clock::now();
+    auto in_time_t = std::chrono::system_clock::to_time_t(now);
+    std::stringstream ss;
+    ss << std::put_time(std::localtime(&in_time_t), "%H:%M");
+    std::string time_str = ss.str();
+
+    txt_renderer->render_text(time_str.c_str(), _width-50, _y_pos+11, 1.0f, 
+                              button_text_color);
   }
 }
 

client/src/ui/ui_window.cpp

@@ -151,7 +151,7 @@ void UIWindow::handle_event(SDL_Event* event, int screen_width,
             _state      = WindowState::NORMAL;
           } else {
             _pre_maximize_rect = { _x, _y, _width, _height };
-            _x = 0; _y = taskbar_height;
+            _x = 0; _y = 0;
             _width = screen_width; _height = screen_height - taskbar_height;
             _state = WindowState::MAXIMIZED;
           }