I hyper-focued on refactoring again

- I put a cool-sounding "we are number one" remix on repeat and straight
  up grinded the entire repository to a better state until 03:09 AM. I
  guess I have something wrong in my brain that makes me do this shit

1 files changed, 38 insertions, 0 deletions

diff --git a/game/client/gui/background.cc b/game/client/gui/background.cc
new file mode 100644
index 0000000..0c38283
--- /dev/null
+++ b/game/client/gui/background.cc
@@ -0,0 +1,38 @@
+#include "client/pch.hh"
+
+#include "client/gui/background.hh"
+
+#include "core/math/constexpr.hh"
+#include "core/resource/resource.hh"
+
+#include "client/resource/texture_gui.hh"
+
+#include "client/globals.hh"
+
+static resource_ptr<TextureGUI> texture;
+
+void gui::background::init(void)
+{
+    texture = resource::load<TextureGUI>("textures/gui/background.png", TEXTURE_GUI_LOAD_VFLIP);
+
+    if(texture == nullptr) {
+        spdlog::critical("background: texture load failed");
+        std::terminate();
+    }
+}
+
+void gui::background::shutdown(void)
+{
+    texture = nullptr;
+}
+
+void gui::background::layout(void)
+{
+    auto viewport = ImGui::GetMainViewport();
+    auto draw_list = ImGui::GetBackgroundDrawList();
+
+    auto scaled_width = 0.75f * static_cast<float>(globals::width / globals::gui_scale);
+    auto scaled_height = 0.75f * static_cast<float>(globals::height / globals::gui_scale);
+    auto scale_uv = ImVec2(scaled_width / static_cast<float>(texture->size.x), scaled_height / static_cast<float>(texture->size.y));
+    draw_list->AddImage(texture->handle, ImVec2(0.0f, 0.0f), viewport->Size, ImVec2(0.0f, 0.0f), scale_uv);
+}