Starting repo

.gitignore

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+# Ignore all files in any directory named build
+build/

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.28)
+
+project(low-level_setup
+ VERSION 1.0
+ LANGUAGES CXX
+)
+
+add_subdirectory(dependencies)
+add_subdirectory(src)

dependencies/CMakeLists.txt

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+include(FetchContent)
+
+set(SFML_VERSION 3.0.0)
+set(IMGUI_VERSION 1.91.1)
+
+option(LINK_DEPS_STATIC CACHE ON)
+
+# Don't build shared libs if we want to link to deps statically
+if(LINK_DEPS_STATIC)
+  set(BUILD_SHARED_LIBS OFF)
+else()
+  set(BUILD_SHARED_LIBS ON)
+endif()
+
+# Get stripped down release zips
+FetchContent_Declare(
+ SFML
+ URL "https://github.com/SFML/SFML/archive/${SFML_VERSION}.zip"
+)
+
+FetchContent_Declare(
+ imgui
+ URL "https://github.com/ocornut/imgui/archive/v${IMGUI_VERSION}.zip"
+)
+
+# imgui_sfml full repo
+FetchContent_Declare(
+  imgui-sfml
+  GIT_REPOSITORY https://github.com/SFML/imgui-sfml.git
+  GIT_TAG        v3.0
+)
+
+# BUILDING
+
+# SFML
+option(SFML_BUILD_AUDIO "Build audio" OFF)
+option(SFML_BUILD_NETWORK "Build network" OFF)
+FetchContent_MakeAvailable(sfml)
+
+# IMGUI
+FetchContent_MakeAvailable(imgui)
+
+# IMGUI-SFML
+set(IMGUI_DIR ${imgui_SOURCE_DIR})
+option(IMGUI_SFML_FIND_SFML "Use find_package to find SFML" OFF)
+option(IMGUI_SFML_IMGUI_DEMO "Build imgui_demo.cpp" ON)
+
+FetchContent_MakeAvailable(imgui-sfml)

src/CMakeLists.txt

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+add_executable(low-level_setup
+ main.cpp
+)
+
+target_link_libraries(low-level_setup
+ PUBLIC
+  ImGui-SFML::ImGui-SFML
+)
+
+# Do we need this?
+# include(Install.cmake)

src/main.cpp

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+#include "imgui.h"
+#include "imgui-SFML.h"
+
+#include <SFML/Graphics.hpp>
+
+int main() {
+    sf::RenderWindow window;
+    window.create(sf::VideoMode({ 1280, 720 }), "My window");
+    window.setFramerateLimit(60);
+    window.setVerticalSyncEnabled(true);
+
+    if (!ImGui::SFML::Init(window))
+        return -1;
+
+    sf::Clock deltaClock;
+    while (window.isOpen())
+    {
+        float deltaTime = deltaClock.restart().asSeconds();
+
+        // Event Polling
+        while (const std::optional event = window.pollEvent())
+        {
+            ImGui::SFML::ProcessEvent(window, *event);
+
+            // "close requested" event: we close the window
+            if (event->is<sf::Event::Closed>())
+                window.close();
+        }
+
+        // Update
+        ImGui::SFML::Update(window, deltaClock.restart());
+        // ImGui::ShowDemoWindow();
+
+        // Render
+        window.clear();
+
+        ImGui::SFML::Render(window);
+
+        window.display();
+    }
+
+	return 0;
+}