Adding template project

src/main.cpp

@@ -0,0 +1,145 @@
+#include <GLFW/glfw3.h>
+#include <RmlUi/Core/ElementDocument.h>
+#include <RmlUi/Core/Event.h>
+#include <RmlUi/Debugger/Debugger.h>
+#include <RmlUi/Lua/Interpreter.h>
+#include <iostream>
+#include <RmlUi/Core/Context.h>
+#include <RmlUi/Core/Core.h>
+#include <RmlUi/Core/Math.h>
+#include <RmlUi/Core.h>
+#include <RmlUi_Backend.h>
+#include <RmlUi/Debugger.h>
+#include <RmlUi/Lua/Lua.h>
+#include <memory>
+#include "app.hpp"
+#include "element_registry.hpp"
+#include "pages/test_page.hpp"
+#include "ButtonClickListener.hpp"
+#include "lui_app_api.hpp"
+#include "elements/health_bar_element.hpp"
+
+static bool is_initalized = false;
+static bool is_running = false;
+static Rml::Context *ctx;
+static App *app;
+static ElementRegistry elementRegistry;
+
+void RegisterElements() {
+    elementRegistry.Register<HealthBarElement>("healthbar");
+}
+
+bool InitalizeApplication() {
+    if (!Backend::Initialize("RmlUi App Template", 800, 600, true)) {
+        std::cout << "[ERROR] backend was not initalized successfully.\n";
+        return false;
+    }
+
+    Rml::SetSystemInterface(Backend::GetSystemInterface());
+    Rml::SetRenderInterface(Backend::GetRenderInterface());
+    Rml::Initialise();
+    Rml::Lua::Initialise();
+
+    ctx = Rml::CreateContext("main", Rml::Vector2i(800,600));
+    if (!ctx) {
+        std::cout << "[ERROR] context was null.\n";
+        Rml::Shutdown();
+        Backend::Shutdown();
+        return false;
+    }
+
+    Rml::Debugger::Initialise(ctx);
+
+    app = new App(ctx, nullptr);
+    if (!app) {
+        std::cout << "[ERROR] app was null.\n";
+        Rml::Shutdown();
+        Backend::Shutdown();
+        return false;
+    }
+
+    lua_State* L = Rml::Lua::Interpreter::GetLuaState();
+    AppLuaApi *lua_app_api = new AppLuaApi(app, L);
+    lua_app_api->RegisterLuaBindings();
+
+    RegisterElements();
+
+    std::cout << "Application initalized...\n";
+
+    return true;
+}
+
+bool f5_was_pressed = false;
+bool f8_was_pressed = false;
+
+void handle_input() {
+    GLFWwindow *window = glfwGetCurrentContext();
+    if(window) {
+        // Reload ui
+        bool f5_state = glfwGetKey(window, GLFW_KEY_F5);
+        if (f5_state == GLFW_PRESS && !f5_was_pressed) {
+            f5_was_pressed = true;
+            app->Reload();
+        } else if (f5_state == GLFW_RELEASE) {
+            f5_was_pressed = false;
+        }
+
+        // Toggle debugger window
+        bool f8_state = glfwGetKey(window, GLFW_KEY_F8);
+        if (f8_state == GLFW_PRESS && !f8_was_pressed) {
+            f8_was_pressed = true;
+            bool is_visible = Rml::Debugger::IsVisible();
+            Rml::Debugger::SetVisible(!is_visible);
+        } else if (f8_state == GLFW_RELEASE) {
+            f8_was_pressed = false;
+        }
+    }
+}
+
+int main() {
+    std::cout << "Application starting...\n";
+    is_initalized = InitalizeApplication();
+    if (!is_initalized) return 1;
+
+    is_running = true;
+
+    std::cout << "Loading UI...\n";
+    
+    app->RegisterPage<TestPagePage>("test-page");
+
+    app->SetupListeners([](Rml::ElementDocument *doc) {
+        if (auto *btn = doc->GetElementById("nav-test")) {
+            app->RegisterListener(btn, std::make_unique<ButtonClickListener>([](Rml::Event&){
+                app->NavigateTo("test-page");
+            }));
+        }
+
+        if (auto *btn = doc->GetElementById("nav-home")) {
+            app->RegisterListener(btn, std::make_unique<ButtonClickListener>([](Rml::Event&){
+                app->NavigateTo("home");
+            }));
+        }
+    });
+    
+    app->LoadUi();
+    app->NavigateTo("home");
+    std::cout << "UI Loaded\n";
+
+    while (is_running) {
+        is_running = Backend::ProcessEvents(ctx);
+
+        handle_input();
+        
+        ctx->Update();
+        Backend::BeginFrame();
+        ctx->Render();
+        Backend::PresentFrame();
+    }
+
+    app->Shutdown();
+    Rml::Shutdown();
+    delete app;
+    Backend::Shutdown();
+
+    return 0;
+}