Started a tiny idle clicker demo called 'Clicker the Dog'. No idea what that means.

demos/clicker_game.cpp

@@ -0,0 +1,110 @@
+#include "guecs/sfml/backend.hpp"
+#include "guecs/sfml/components.hpp"
+#include "guecs/ui.hpp"
+#include <fmt/xchar.h>
+#include <deque>
+
+constexpr const int WINDOW_WIDTH=1280;
+constexpr const int WINDOW_HEIGHT=720;
+constexpr const int FRAME_LIMIT=60;
+constexpr const bool VSYNC=true;
+
+using std::string, std::wstring;
+
+enum class Event {
+  CLICKER, A_BUTTON
+};
+
+
+struct ClickerUI {
+  guecs::UI $gui;
+
+  ClickerUI() {
+    $gui.position(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
+    $gui.layout(
+        "[_|*%(300,400)clicker|_|_|_]"
+        "[_|_               |_|_|_]"
+        "[_|_               |_|_|_]"
+        "[_|_               |_|_|_]"
+        "[a1|a2|a3|a4|a5]");
+  }
+
+  void init() {
+    $gui.set<guecs::Background>($gui.MAIN, {});
+
+    for(auto& [name, cell] : $gui.cells()) {
+      auto id = $gui.entity(name);
+      if(name != "clicker") {
+        $gui.set<guecs::Rectangle>(id, {});
+        $gui.set<guecs::Effect>(id, {});
+        $gui.set<guecs::Label>(id, { guecs::to_wstring(name) });
+        $gui.set<guecs::Clickable>(id, {
+            [&](auto, auto) { handle_button(Event::A_BUTTON); }
+        });
+      } else {
+        $gui.set<guecs::Sprite>(id, {"clicker_the_dog"});
+        $gui.set<guecs::Effect>(id, {0.1f, "ui_shader"});
+        $gui.set<guecs::Clickable>(id, {
+            [&](auto, auto) { handle_button(Event::CLICKER); }
+        });
+      }
+    }
+
+    $gui.init();
+  }
+
+  void render(sf::RenderWindow& window) {
+    $gui.render(window);
+    // $gui.debug_layout(window);
+  }
+
+  void mouse(float x, float y, bool hover) {
+    $gui.mouse(x, y, hover);
+  }
+
+  void handle_button(Event ev) {
+    using enum Event;
+    switch(ev) {
+      case CLICKER:
+        fmt::println("CLICKER LOVES YOU!");
+        break;
+
+      case A_BUTTON:
+        fmt::println("a button clicked");
+        break;
+
+      default:
+        assert(false && "invalid event");
+    }
+  }
+};
+
+int main() {
+  sfml::Backend backend;
+  guecs::init(&backend);
+
+  sf::RenderWindow window(sf::VideoMode({WINDOW_WIDTH, WINDOW_HEIGHT}), "LEL-GUECS Calculator");
+  window.setFramerateLimit(FRAME_LIMIT);
+  window.setVerticalSyncEnabled(VSYNC);
+
+  ClickerUI clicker;
+  clicker.init();
+
+  while(window.isOpen()) {
+    while (const auto event = window.pollEvent()) {
+      if(event->is<sf::Event::Closed>()) {
+        window.close();
+      }
+
+      if(const auto* mouse = event->getIf<sf::Event::MouseButtonPressed>()) {
+        if(mouse->button == sf::Mouse::Button::Left) {
+          sf::Vector2f pos = window.mapPixelToCoords(mouse->position);
+          clicker.mouse(pos.x, pos.y, false);
+        }
+      }
+    }
+
+    clicker.render(window);
+    window.display();
+  }
+}