1 files changed, 32 insertions, 0 deletions
diff --git a/loader.hpp b/loader.hpp
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index 00000000..0406d4e2
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+++ b/loader.hpp
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+#pragma once
+
+#include <Magnum/Trade/ImageData.h>
+
+#include <string>
+#include <optional>
+#include <memory>
+
+namespace Magnum::Examples {
+
+struct atlas_texture;
+using atlas_ptr = std::shared_ptr<atlas_texture>;
+
+struct loader_
+{
+    virtual std::string shader(const std::string& filename) = 0;
+    virtual Trade::ImageData2D tile_texture(const std::string& filename) = 0;
+    virtual atlas_ptr tile_atlas(const std::string& filename) = 0;
+    static void destroy();
+
+    loader_(const loader_&) = delete;
+    loader_& operator=(const loader_&) = delete;
+
+    virtual ~loader_();
+
+protected:
+    loader_();
+};
+
+extern loader_& loader; // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
+
+} // namespace Magnum::Examples