From bc0b3c61ae0b742da304cada451fba1df72bb0ad Mon Sep 17 00:00:00 2001
From: hop311 <hop3114@gmail.com>
Date: Wed, 8 Nov 2023 22:24:21 +0000
Subject: GUI elements -> Godot UI nodes generator

---
 .../openvic-extension/singletons/AssetManager.hpp  | 61 ++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 extension/src/openvic-extension/singletons/AssetManager.hpp

(limited to 'extension/src/openvic-extension/singletons/AssetManager.hpp')

diff --git a/extension/src/openvic-extension/singletons/AssetManager.hpp b/extension/src/openvic-extension/singletons/AssetManager.hpp
new file mode 100644
index 0000000..7cfc31b
--- /dev/null
+++ b/extension/src/openvic-extension/singletons/AssetManager.hpp
@@ -0,0 +1,61 @@
+#pragma once
+
+#include <godot_cpp/classes/atlas_texture.hpp>
+#include <godot_cpp/classes/font.hpp>
+#include <godot_cpp/classes/image_texture.hpp>
+#include <godot_cpp/core/class_db.hpp>
+
+#include <openvic-simulation/interface/GFX.hpp>
+
+namespace OpenVic {
+	class AssetManager : public godot::Object {
+		GDCLASS(AssetManager, godot::Object)
+
+		static inline AssetManager* _singleton = nullptr;
+
+		struct image_asset_t {
+			godot::Ref<godot::Image> image;
+			godot::Ref<godot::ImageTexture> texture;
+		};
+		using image_asset_map_t = std::map<godot::StringName, image_asset_t>;
+		using font_map_t = std::map<godot::StringName, godot::Ref<godot::Font>>;
+
+		image_asset_map_t image_assets;
+		font_map_t fonts;
+
+		image_asset_map_t::iterator _get_image_asset(godot::StringName path);
+
+	protected:
+		static void _bind_methods();
+
+	public:
+		static AssetManager* get_singleton();
+
+		AssetManager();
+		~AssetManager();
+
+		/* Search for and load an image at the specified path relative to the game defines, first checking the AssetManager's
+		 * image cache in case it has already been loaded, and returning nullptr if image loading fails. */
+		godot::Ref<godot::Image> get_image(godot::StringName path);
+
+		/* Create a texture from an image found at the specified path relative to the game defines, fist checking
+		 * AssetManager's texture cache in case it has already been loaded, and returning nullptr if image loading
+		 * or texture creation fails. */
+		godot::Ref<godot::ImageTexture> get_texture(godot::StringName path);
+
+		/* Extract the specified frame of the texture, which is treated as a single row of frame_count frames. */
+		static godot::Ref<godot::AtlasTexture> make_icon(
+			godot::Ref<godot::Texture2D> texture, GFX::frame_t frame, GFX::frame_t frame_count
+		);
+
+		/* Load a texture as with get_texture, and extract the specified frame as with make_icon. */
+		godot::Ref<godot::AtlasTexture> get_icon(godot::StringName path, GFX::frame_t frame, GFX::frame_t frame_count);
+
+		/* Load a texture as with get_texture if frame_count <= 1 otherwise as with get_icon. */
+		godot::Ref<godot::Texture2D> get_texture_or_icon(godot::StringName path, GFX::frame_t frame, GFX::frame_t frame_count);
+
+		/* Search for and load a font with the specified name from the game defines' font directory, first checking the
+		 * AssetManager's font cache in case it has already been loaded, and returning nullptr if font loading fails. */
+		godot::Ref<godot::Font> get_font(godot::StringName name);
+	};
+}
-- 
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