Switch to using custom UI nodes

19 files changed, 873 insertions, 64 deletions

diff --git a/extension/src/openvic-extension/classes/GUIButton.cpp b/extension/src/openvic-extension/classes/GUIButton.cpp
new file mode 100644
index 0000000..323b03c
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIButton.cpp
@@ -0,0 +1,99 @@
+#include "GUIButton.hpp"
+
+#include <array>
+
+#include <godot_cpp/variant/utility_functions.hpp>
+
+#include "openvic-extension/singletons/AssetManager.hpp"
+#include "openvic-extension/utility/Utilities.hpp"
+
+using namespace godot;
+using namespace OpenVic;
+
+void GUIButton::_bind_methods() {}
+
+Error GUIButton::set_gfx_button_state_having_texture(Ref<GFXButtonStateHavingTexture> const& texture) {
+	ERR_FAIL_NULL_V(texture, FAILED);
+
+	Error err = OK;
+
+	set_custom_minimum_size(texture->get_size());
+
+	{
+		Ref<StyleBoxTexture> stylebox = AssetManager::make_stylebox_texture(texture);
+
+		if (stylebox.is_valid()) {
+			static const StringName normal_theme = "normal";
+
+			add_theme_stylebox_override(normal_theme, stylebox);
+		} else {
+			UtilityFunctions::push_error("Failed to make StyleBoxTexture for GUIButton ", get_name());
+
+			err = FAILED;
+		}
+	}
+
+	using enum GFXButtonStateTexture::ButtonState;
+
+	for (GFXButtonStateTexture::ButtonState button_state : { HOVER, PRESSED, DISABLED }) {
+		Ref<GFXButtonStateTexture> button_state_texture = texture->get_button_state_texture(button_state);
+
+		if (button_state_texture.is_valid()) {
+			Ref<StyleBoxTexture> stylebox = AssetManager::make_stylebox_texture(button_state_texture);
+
+			if (stylebox.is_valid()) {
+				add_theme_stylebox_override(button_state_texture->get_button_state_name(), stylebox);
+			} else {
+				UtilityFunctions::push_error(
+					"Failed to make ", GFXButtonStateTexture::button_state_to_name(button_state),
+					" StyleBoxTexture for GUIButton ", get_name()
+				);
+
+				err = FAILED;
+			}
+		} else {
+			UtilityFunctions::push_error(
+				"Failed to make ", GFXButtonStateTexture::button_state_to_name(button_state),
+				" GFXButtonStateTexture for GUIButton ", get_name()
+			);
+
+			err = FAILED;
+		}
+	}
+
+	return err;
+}
+
+Error GUIButton::set_gfx_font(GFX::Font const* gfx_font) {
+	ERR_FAIL_NULL_V(gfx_font, FAILED);
+
+	AssetManager* asset_manager = AssetManager::get_singleton();
+	ERR_FAIL_NULL_V(asset_manager, FAILED);
+
+	Error err = OK;
+
+	const StringName font_file = Utilities::std_to_godot_string(gfx_font->get_fontname());
+	const Ref<Font> font = asset_manager->get_font(font_file);
+
+	if (font.is_valid()) {
+		static const StringName font_theme = "font";
+
+		add_theme_font_override(font_theme, font);
+	} else {
+		UtilityFunctions::push_error("Failed to load font \"", font_file, "\" for GUIButton ", get_name());
+
+		err = FAILED;
+	}
+
+	static const std::array<StringName, 5> button_font_themes {
+		"font_color", "font_hover_color", "font_hover_pressed_color", "font_pressed_color", "font_disabled_color"
+	};
+
+	const Color colour = Utilities::to_godot_color(gfx_font->get_colour());
+
+	for (StringName const& theme_name : button_font_themes) {
+		add_theme_color_override(theme_name, colour);
+	}
+
+	return err;
+}
diff --git a/extension/src/openvic-extension/classes/GUIButton.hpp b/extension/src/openvic-extension/classes/GUIButton.hpp
new file mode 100644
index 0000000..4e53125
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIButton.hpp
@@ -0,0 +1,21 @@
+#pragma once
+
+#include <godot_cpp/classes/button.hpp>
+
+#include <openvic-simulation/interface/GFXSprite.hpp>
+
+#include "openvic-extension/classes/GFXButtonStateTexture.hpp"
+
+namespace OpenVic {
+	class GUIButton : public godot::Button {
+		GDCLASS(GUIButton, godot::Button)
+
+	protected:
+		static void _bind_methods();
+
+		godot::Error set_gfx_button_state_having_texture(godot::Ref<GFXButtonStateHavingTexture> const& texture);
+
+	public:
+		godot::Error set_gfx_font(GFX::Font const* gfx_font);
+	};
+}
diff --git a/extension/src/openvic-extension/classes/GUIIcon.cpp b/extension/src/openvic-extension/classes/GUIIcon.cpp
new file mode 100644
index 0000000..68e7ec4
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIIcon.cpp
@@ -0,0 +1,82 @@
+#include "GUIIcon.hpp"
+
+#include "openvic-extension/utility/ClassBindings.hpp"
+
+using namespace godot;
+using namespace OpenVic;
+
+void GUIIcon::_bind_methods() {
+	OV_BIND_METHOD(GUIIcon::get_gfx_sprite_texture);
+
+	OV_BIND_METHOD(GUIIcon::set_gfx_texture_sprite_name, { "gfx_texture_sprite_name", "icon" }, DEFVAL(GFX::NO_FRAMES));
+	OV_BIND_METHOD(GUIIcon::get_gfx_texture_sprite_name);
+
+	OV_BIND_METHOD(GUIIcon::set_icon_index, { "icon_index" });
+	OV_BIND_METHOD(GUIIcon::get_icon_index);
+
+	OV_BIND_METHOD(GUIIcon::set_toggled_icon, { "toggled" });
+}
+
+Error GUIIcon::set_gfx_texture_sprite(GFX::TextureSprite const* gfx_texture_sprite, GFX::frame_t icon) {
+	const bool needs_setting = gfx_sprite_texture.is_null();
+
+	if (needs_setting) {
+		gfx_sprite_texture.instantiate();
+		ERR_FAIL_NULL_V(gfx_sprite_texture, FAILED);
+	}
+
+	const Error err = gfx_sprite_texture->set_gfx_texture_sprite(gfx_texture_sprite, icon);
+
+	if (needs_setting) {
+		set_texture(gfx_sprite_texture);
+	}
+
+	return err;
+}
+
+Ref<GFXSpriteTexture> GUIIcon::get_gfx_sprite_texture() const {
+	ERR_FAIL_NULL_V(gfx_sprite_texture, nullptr);
+
+	return gfx_sprite_texture;
+}
+
+Error GUIIcon::set_gfx_texture_sprite_name(String const& gfx_texture_sprite_name, GFX::frame_t icon) {
+	const bool needs_setting = gfx_sprite_texture.is_null();
+
+	if (needs_setting) {
+		gfx_sprite_texture.instantiate();
+		ERR_FAIL_NULL_V(gfx_sprite_texture, FAILED);
+	}
+
+	const Error err = gfx_sprite_texture->set_gfx_texture_sprite_name(gfx_texture_sprite_name, icon);
+
+	if (needs_setting) {
+		set_texture(gfx_sprite_texture);
+	}
+
+	return err;
+}
+
+String GUIIcon::get_gfx_texture_sprite_name() const {
+	ERR_FAIL_NULL_V(gfx_sprite_texture, {});
+
+	return gfx_sprite_texture->get_gfx_texture_sprite_name();
+}
+
+Error GUIIcon::set_icon_index(GFX::frame_t icon_index) const {
+	ERR_FAIL_NULL_V(gfx_sprite_texture, FAILED);
+
+	return gfx_sprite_texture->set_icon_index(icon_index);
+}
+
+GFX::frame_t GUIIcon::get_icon_index() const {
+	ERR_FAIL_NULL_V(gfx_sprite_texture, FAILED);
+
+	return gfx_sprite_texture->get_icon_index();
+}
+
+Error GUIIcon::set_toggled_icon(bool toggled) const {
+	ERR_FAIL_NULL_V(gfx_sprite_texture, FAILED);
+
+	return gfx_sprite_texture->set_toggled_icon(toggled);
+}
diff --git a/extension/src/openvic-extension/classes/GUIIcon.hpp b/extension/src/openvic-extension/classes/GUIIcon.hpp
new file mode 100644
index 0000000..e8e3014
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIIcon.hpp
@@ -0,0 +1,34 @@
+#pragma once
+
+#include "openvic-extension/classes/GFXSpriteTexture.hpp"
+#include "openvic-extension/classes/GUITextureRect.hpp"
+
+namespace OpenVic {
+	class GUIIcon : public GUITextureRect {
+		GDCLASS(GUIIcon, GUITextureRect)
+
+		godot::Ref<GFXSpriteTexture> gfx_sprite_texture;
+
+	protected:
+		static void _bind_methods();
+
+	public:
+		godot::Error set_gfx_texture_sprite(
+			GFX::TextureSprite const* gfx_texture_sprite, GFX::frame_t icon = GFX::NO_FRAMES
+		);
+
+		godot::Ref<GFXSpriteTexture> get_gfx_sprite_texture() const;
+
+		godot::Error set_gfx_texture_sprite_name(
+			godot::String const& gfx_texture_sprite_name, GFX::frame_t icon = GFX::NO_FRAMES
+		);
+
+		godot::String get_gfx_texture_sprite_name() const;
+
+		godot::Error set_icon_index(GFX::frame_t icon_index) const;
+
+		GFX::frame_t get_icon_index() const;
+
+		godot::Error set_toggled_icon(bool toggled) const;
+	};
+}
diff --git a/extension/src/openvic-extension/classes/GUIIconButton.cpp b/extension/src/openvic-extension/classes/GUIIconButton.cpp
new file mode 100644
index 0000000..1bba947
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIIconButton.cpp
@@ -0,0 +1,86 @@
+#include "GUIIconButton.hpp"
+
+#include "openvic-extension/utility/ClassBindings.hpp"
+
+using namespace godot;
+using namespace OpenVic;
+
+void GUIIconButton::_bind_methods() {
+	OV_BIND_METHOD(GUIIconButton::get_gfx_sprite_texture);
+
+	OV_BIND_METHOD(GUIIconButton::set_gfx_texture_sprite_name, { "gfx_texture_sprite_name", "icon" }, DEFVAL(GFX::NO_FRAMES));
+	OV_BIND_METHOD(GUIIconButton::get_gfx_texture_sprite_name);
+
+	OV_BIND_METHOD(GUIIconButton::set_icon_index, { "icon_index" });
+	OV_BIND_METHOD(GUIIconButton::get_icon_index);
+
+	OV_BIND_METHOD(GUIIconButton::set_toggled_icon, { "toggled" });
+}
+
+Error GUIIconButton::set_gfx_texture_sprite(GFX::TextureSprite const* gfx_texture_sprite, GFX::frame_t icon) {
+	const bool needs_setting = gfx_sprite_texture.is_null();
+
+	if (needs_setting) {
+		gfx_sprite_texture.instantiate();
+		ERR_FAIL_NULL_V(gfx_sprite_texture, FAILED);
+	}
+
+	Error err = gfx_sprite_texture->set_gfx_texture_sprite(gfx_texture_sprite, icon);
+
+	if (needs_setting && set_gfx_button_state_having_texture(gfx_sprite_texture) != OK) {
+		err = FAILED;
+	}
+
+	return err;
+}
+
+Ref<GFXSpriteTexture> GUIIconButton::get_gfx_sprite_texture() const {
+	ERR_FAIL_NULL_V(gfx_sprite_texture, nullptr);
+
+	return gfx_sprite_texture;
+}
+
+Error GUIIconButton::set_gfx_texture_sprite_name(String const& gfx_texture_sprite_name, GFX::frame_t icon) {
+	const bool needs_setting = gfx_sprite_texture.is_null();
+
+	if (needs_setting) {
+		gfx_sprite_texture.instantiate();
+		ERR_FAIL_NULL_V(gfx_sprite_texture, FAILED);
+	}
+
+	Error err = gfx_sprite_texture->set_gfx_texture_sprite_name(gfx_texture_sprite_name, icon);
+
+	if (needs_setting && set_gfx_button_state_having_texture(gfx_sprite_texture) != OK) {
+		err = FAILED;
+	}
+
+	return err;
+}
+
+String GUIIconButton::get_gfx_texture_sprite_name() const {
+	ERR_FAIL_NULL_V(gfx_sprite_texture, {});
+
+	return gfx_sprite_texture->get_gfx_texture_sprite_name();
+}
+
+Error GUIIconButton::set_icon_index(GFX::frame_t icon_index) const {
+	ERR_FAIL_NULL_V(gfx_sprite_texture, FAILED);
+
+	return gfx_sprite_texture->set_icon_index(icon_index);
+}
+
+GFX::frame_t GUIIconButton::get_icon_index() const {
+	ERR_FAIL_NULL_V(gfx_sprite_texture, FAILED);
+
+	return gfx_sprite_texture->get_icon_index();
+}
+
+Error GUIIconButton::set_toggled_icon(bool toggled) const {
+	ERR_FAIL_NULL_V(gfx_sprite_texture, FAILED);
+
+	return gfx_sprite_texture->set_toggled_icon(toggled);
+}
+
+void GUIIconButton::_toggled(bool toggled_on) {
+	set_toggled_icon(toggled_on);
+}
diff --git a/extension/src/openvic-extension/classes/GUIIconButton.hpp b/extension/src/openvic-extension/classes/GUIIconButton.hpp
new file mode 100644
index 0000000..10fc179
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIIconButton.hpp
@@ -0,0 +1,36 @@
+#pragma once
+
+#include "openvic-extension/classes/GFXSpriteTexture.hpp"
+#include "openvic-extension/classes/GUIButton.hpp"
+
+namespace OpenVic {
+	class GUIIconButton : public GUIButton {
+		GDCLASS(GUIIconButton, GUIButton)
+
+		godot::Ref<GFXSpriteTexture> gfx_sprite_texture;
+
+	protected:
+		static void _bind_methods();
+
+	public:
+		godot::Error set_gfx_texture_sprite(
+			GFX::TextureSprite const* gfx_texture_sprite, GFX::frame_t icon = GFX::NO_FRAMES
+		);
+
+		godot::Ref<GFXSpriteTexture> get_gfx_sprite_texture() const;
+
+		godot::Error set_gfx_texture_sprite_name(
+			godot::String const& gfx_texture_sprite_name, GFX::frame_t icon = GFX::NO_FRAMES
+		);
+
+		godot::String get_gfx_texture_sprite_name() const;
+
+		godot::Error set_icon_index(GFX::frame_t icon_index) const;
+
+		GFX::frame_t get_icon_index() const;
+
+		godot::Error set_toggled_icon(bool toggled) const;
+
+		void _toggled(bool toggled_on) override;
+	};
+}
diff --git a/extension/src/openvic-extension/classes/GUIListBox.cpp b/extension/src/openvic-extension/classes/GUIListBox.cpp
index 9165b14..958807f 100644
--- a/extension/src/openvic-extension/classes/GUIListBox.cpp
+++ b/extension/src/openvic-extension/classes/GUIListBox.cpp
@@ -146,7 +146,7 @@ Vector2 GUIListBox::_get_minimum_size() const {
 	}
 }
 
-void GUIListBox::_gui_input(godot::Ref<godot::InputEvent> const& event) {
+void GUIListBox::_gui_input(Ref<InputEvent> const& event) {
 	ERR_FAIL_NULL(event);
 
 	if (scrollbar == nullptr) {
diff --git a/extension/src/openvic-extension/classes/GUIMaskedFlag.cpp b/extension/src/openvic-extension/classes/GUIMaskedFlag.cpp
new file mode 100644
index 0000000..968cebb
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIMaskedFlag.cpp
@@ -0,0 +1,88 @@
+#include "GUIMaskedFlag.hpp"
+
+#include "openvic-extension/utility/ClassBindings.hpp"
+
+using namespace godot;
+using namespace OpenVic;
+
+void GUIMaskedFlag::_bind_methods() {
+	OV_BIND_METHOD(GUIMaskedFlag::get_gfx_masked_flag_texture);
+
+	OV_BIND_METHOD(GUIMaskedFlag::set_gfx_masked_flag_name, { "gfx_masked_flag_name" });
+	OV_BIND_METHOD(GUIMaskedFlag::get_gfx_masked_flag_name);
+
+	OV_BIND_METHOD(GUIMaskedFlag::set_flag_country_name_and_type, { "flag_country_name", "flag_type" });
+	OV_BIND_METHOD(GUIMaskedFlag::set_flag_country_name, { "flag_country_name" });
+	OV_BIND_METHOD(GUIMaskedFlag::get_flag_country_name);
+	OV_BIND_METHOD(GUIMaskedFlag::get_flag_type);
+}
+
+Error GUIMaskedFlag::set_gfx_masked_flag(GFX::MaskedFlag const* gfx_masked_flag) {
+	const bool needs_setting = gfx_masked_flag_texture.is_null();
+
+	if (needs_setting) {
+		gfx_masked_flag_texture.instantiate();
+		ERR_FAIL_NULL_V(gfx_masked_flag_texture, FAILED);
+	}
+
+	const Error err = gfx_masked_flag_texture->set_gfx_masked_flag(gfx_masked_flag);
+
+	if (needs_setting) {
+		set_texture(gfx_masked_flag_texture);
+	}
+
+	return err;
+}
+
+Ref<GFXMaskedFlagTexture> GUIMaskedFlag::get_gfx_masked_flag_texture() const {
+	ERR_FAIL_NULL_V(gfx_masked_flag_texture, nullptr);
+
+	return gfx_masked_flag_texture;
+}
+
+Error GUIMaskedFlag::set_gfx_masked_flag_name(String const& gfx_masked_flag_name) {
+	const bool needs_setting = gfx_masked_flag_texture.is_null();
+
+	if (needs_setting) {
+		gfx_masked_flag_texture.instantiate();
+		ERR_FAIL_NULL_V(gfx_masked_flag_texture, FAILED);
+	}
+
+	const Error err = gfx_masked_flag_texture->set_gfx_masked_flag_name(gfx_masked_flag_name);
+
+	if (needs_setting) {
+		set_texture(gfx_masked_flag_texture);
+	}
+
+	return err;
+}
+
+String GUIMaskedFlag::get_gfx_masked_flag_name() const {
+	ERR_FAIL_NULL_V(gfx_masked_flag_texture, {});
+
+	return gfx_masked_flag_texture->get_gfx_masked_flag_name();
+}
+
+Error GUIMaskedFlag::set_flag_country_name_and_type(String const& flag_country_name, StringName const& flag_type) const {
+	ERR_FAIL_NULL_V(gfx_masked_flag_texture, FAILED);
+
+	return gfx_masked_flag_texture->set_flag_country_name_and_type(flag_country_name, flag_type);
+}
+
+Error GUIMaskedFlag::set_flag_country_name(String const& flag_country_name) const {
+	ERR_FAIL_NULL_V(gfx_masked_flag_texture, FAILED);
+
+	return gfx_masked_flag_texture->set_flag_country_name(flag_country_name);
+}
+
+String GUIMaskedFlag::get_flag_country_name() const {
+	ERR_FAIL_NULL_V(gfx_masked_flag_texture, {});
+
+	return gfx_masked_flag_texture->get_flag_country_name();
+}
+
+String GUIMaskedFlag::get_flag_type() const {
+	ERR_FAIL_NULL_V(gfx_masked_flag_texture, {});
+
+	return gfx_masked_flag_texture->get_flag_type();
+}
diff --git a/extension/src/openvic-extension/classes/GUIMaskedFlag.hpp b/extension/src/openvic-extension/classes/GUIMaskedFlag.hpp
new file mode 100644
index 0000000..4bdc6c1
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIMaskedFlag.hpp
@@ -0,0 +1,34 @@
+#pragma once
+
+#include "openvic-extension/classes/GFXMaskedFlagTexture.hpp"
+#include "openvic-extension/classes/GUITextureRect.hpp"
+
+namespace OpenVic {
+	class GUIMaskedFlag : public GUITextureRect {
+		GDCLASS(GUIMaskedFlag, GUITextureRect)
+
+		godot::Ref<GFXMaskedFlagTexture> gfx_masked_flag_texture;
+
+	protected:
+		static void _bind_methods();
+
+	public:
+		godot::Error set_gfx_masked_flag(GFX::MaskedFlag const* gfx_masked_flag);
+
+		godot::Ref<GFXMaskedFlagTexture> get_gfx_masked_flag_texture() const;
+
+		godot::Error set_gfx_masked_flag_name(godot::String const& gfx_masked_flag_name);
+
+		godot::String get_gfx_masked_flag_name() const;
+
+		godot::Error set_flag_country_name_and_type(
+			godot::String const& flag_country_name, godot::StringName const& flag_type
+		) const;
+
+		godot::Error set_flag_country_name(godot::String const& flag_country_name) const;
+
+		godot::String get_flag_country_name() const;
+
+		godot::String get_flag_type() const;
+	};
+}
diff --git a/extension/src/openvic-extension/classes/GUIMaskedFlagButton.cpp b/extension/src/openvic-extension/classes/GUIMaskedFlagButton.cpp
new file mode 100644
index 0000000..8c3c1f8
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIMaskedFlagButton.cpp
@@ -0,0 +1,88 @@
+#include "GUIMaskedFlagButton.hpp"
+
+#include "openvic-extension/utility/ClassBindings.hpp"
+
+using namespace godot;
+using namespace OpenVic;
+
+void GUIMaskedFlagButton::_bind_methods() {
+	OV_BIND_METHOD(GUIMaskedFlagButton::get_gfx_masked_flag_texture);
+
+	OV_BIND_METHOD(GUIMaskedFlagButton::set_gfx_masked_flag_name, { "gfx_masked_flag_name" });
+	OV_BIND_METHOD(GUIMaskedFlagButton::get_gfx_masked_flag_name);
+
+	OV_BIND_METHOD(GUIMaskedFlagButton::set_flag_country_name_and_type, { "flag_country_name", "flag_type" });
+	OV_BIND_METHOD(GUIMaskedFlagButton::set_flag_country_name, { "flag_country_name" });
+	OV_BIND_METHOD(GUIMaskedFlagButton::get_flag_country_name);
+	OV_BIND_METHOD(GUIMaskedFlagButton::get_flag_type);
+}
+
+Error GUIMaskedFlagButton::set_gfx_masked_flag(GFX::MaskedFlag const* gfx_masked_flag) {
+	const bool needs_setting = gfx_masked_flag_texture.is_null();
+
+	if (needs_setting) {
+		gfx_masked_flag_texture.instantiate();
+		ERR_FAIL_NULL_V(gfx_masked_flag_texture, FAILED);
+	}
+
+	Error err = gfx_masked_flag_texture->set_gfx_masked_flag(gfx_masked_flag);
+
+	if (needs_setting && set_gfx_button_state_having_texture(gfx_masked_flag_texture) != OK) {
+		err = FAILED;
+	}
+
+	return err;
+}
+
+Ref<GFXMaskedFlagTexture> GUIMaskedFlagButton::get_gfx_masked_flag_texture() const {
+	ERR_FAIL_NULL_V(gfx_masked_flag_texture, nullptr);
+
+	return gfx_masked_flag_texture;
+}
+
+Error GUIMaskedFlagButton::set_gfx_masked_flag_name(String const& gfx_masked_flag_name) {
+	const bool needs_setting = gfx_masked_flag_texture.is_null();
+
+	if (needs_setting) {
+		gfx_masked_flag_texture.instantiate();
+		ERR_FAIL_NULL_V(gfx_masked_flag_texture, FAILED);
+	}
+
+	Error err = gfx_masked_flag_texture->set_gfx_masked_flag_name(gfx_masked_flag_name);
+
+	if (needs_setting && set_gfx_button_state_having_texture(gfx_masked_flag_texture) != OK) {
+		err = FAILED;
+	}
+
+	return err;
+}
+
+String GUIMaskedFlagButton::get_gfx_masked_flag_name() const {
+	ERR_FAIL_NULL_V(gfx_masked_flag_texture, {});
+
+	return gfx_masked_flag_texture->get_gfx_masked_flag_name();
+}
+
+Error GUIMaskedFlagButton::set_flag_country_name_and_type(String const& flag_country_name, StringName const& flag_type) const {
+	ERR_FAIL_NULL_V(gfx_masked_flag_texture, FAILED);
+
+	return gfx_masked_flag_texture->set_flag_country_name_and_type(flag_country_name, flag_type);
+}
+
+Error GUIMaskedFlagButton::set_flag_country_name(String const& flag_country_name) const {
+	ERR_FAIL_NULL_V(gfx_masked_flag_texture, FAILED);
+
+	return gfx_masked_flag_texture->set_flag_country_name(flag_country_name);
+}
+
+String GUIMaskedFlagButton::get_flag_country_name() const {
+	ERR_FAIL_NULL_V(gfx_masked_flag_texture, {});
+
+	return gfx_masked_flag_texture->get_flag_country_name();
+}
+
+String GUIMaskedFlagButton::get_flag_type() const {
+	ERR_FAIL_NULL_V(gfx_masked_flag_texture, {});
+
+	return gfx_masked_flag_texture->get_flag_type();
+}
diff --git a/extension/src/openvic-extension/classes/GUIMaskedFlagButton.hpp b/extension/src/openvic-extension/classes/GUIMaskedFlagButton.hpp
new file mode 100644
index 0000000..131c93d
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIMaskedFlagButton.hpp
@@ -0,0 +1,34 @@
+#pragma once
+
+#include "openvic-extension/classes/GFXMaskedFlagTexture.hpp"
+#include "openvic-extension/classes/GUIButton.hpp"
+
+namespace OpenVic {
+	class GUIMaskedFlagButton : public GUIButton {
+		GDCLASS(GUIMaskedFlagButton, GUIButton)
+
+		godot::Ref<GFXMaskedFlagTexture> gfx_masked_flag_texture;
+
+	protected:
+		static void _bind_methods();
+
+	public:
+		godot::Error set_gfx_masked_flag(GFX::MaskedFlag const* gfx_masked_flag);
+
+		godot::Ref<GFXMaskedFlagTexture> get_gfx_masked_flag_texture() const;
+
+		godot::Error set_gfx_masked_flag_name(godot::String const& gfx_masked_flag_name);
+
+		godot::String get_gfx_masked_flag_name() const;
+
+		godot::Error set_flag_country_name_and_type(
+			godot::String const& flag_country_name, godot::StringName const& flag_type
+		) const;
+
+		godot::Error set_flag_country_name(godot::String const& flag_country_name) const;
+
+		godot::String get_flag_country_name() const;
+
+		godot::String get_flag_type() const;
+	};
+}
diff --git a/extension/src/openvic-extension/classes/GUINode.cpp b/extension/src/openvic-extension/classes/GUINode.cpp
index 25ef821..59bad92 100644
--- a/extension/src/openvic-extension/classes/GUINode.cpp
+++ b/extension/src/openvic-extension/classes/GUINode.cpp
@@ -3,7 +3,6 @@
 #include <limits>
 
 #include <godot_cpp/classes/bit_map.hpp>
-#include <godot_cpp/classes/button.hpp>
 #include <godot_cpp/classes/canvas_item.hpp>
 #include <godot_cpp/classes/check_box.hpp>
 #include <godot_cpp/classes/control.hpp>
@@ -17,7 +16,6 @@
 #include <godot_cpp/classes/style_box_texture.hpp>
 #include <godot_cpp/classes/texture2d.hpp>
 #include <godot_cpp/classes/texture_progress_bar.hpp>
-#include <godot_cpp/classes/texture_rect.hpp>
 #include <godot_cpp/core/defs.hpp>
 #include <godot_cpp/core/error_macros.hpp>
 #include <godot_cpp/core/object.hpp>
@@ -39,21 +37,19 @@ using namespace godot;
 using namespace OpenVic;
 
 #define APPLY_TO_CHILD_TYPES(F) \
-	F(Button, button) \
+	F(GUIIconButton, gui_icon_button) \
+	F(GUIMaskedFlagButton, gui_masked_flag_button) \
 	F(GUILabel, gui_label) \
 	F(Panel, panel) \
-	F(TextureProgressBar, progress_bar) \
-	F(TextureRect, texture_rect) \
+	F(GUIProgressBar, gui_progress_bar) \
+	F(GUIIcon, gui_icon) \
+	F(GUIMaskedFlag, gui_masked_flag) \
+	F(GUIPieChart, gui_pie_chart) \
 	F(GUIOverlappingElementsBox, gui_overlapping_elements_box) \
 	F(GUIScrollbar, gui_scrollbar) \
 	F(GUIListBox, gui_listbox) \
 	F(LineEdit, line_edit)
 
-#define APPLY_TO_TEXTURE_TYPES(F) \
-	F(GFXSpriteTexture, gfx_sprite_texture) \
-	F(GFXMaskedFlagTexture, gfx_masked_flag_texture) \
-	F(GFXPieChartTexture, gfx_pie_chart_texture)
-
 void GUINode::_bind_methods() {
 	OV_BIND_SMETHOD(generate_gui_element, { "gui_scene", "gui_element", "name" }, DEFVAL(String {}));
 	OV_BIND_METHOD(GUINode::add_gui_element, { "gui_scene", "gui_element", "name" }, DEFVAL(String {}));
@@ -74,13 +70,11 @@ void GUINode::_bind_methods() {
 
 	APPLY_TO_CHILD_TYPES(GET_BINDINGS)
 
+#undef GET_BINDINGS
+
 	OV_BIND_SMETHOD(get_texture_from_node, { "node" });
 	OV_BIND_METHOD(GUINode::get_texture_from_nodepath, { "path" });
 
-	APPLY_TO_TEXTURE_TYPES(GET_BINDINGS)
-
-#undef GET_BINDINGS
-
 	OV_BIND_METHOD(GUINode::hide_node, { "path" });
 	OV_BIND_METHOD(GUINode::hide_nodes, { "paths" });
 
@@ -151,33 +145,37 @@ APPLY_TO_CHILD_TYPES(CHILD_GET_FUNCTIONS)
 
 #undef CHILD_GET_FUNCTIONS
 
+#undef APPLY_TO_CHILD_TYPES
+
 Ref<Texture2D> GUINode::get_texture_from_node(Node* node) {
 	ERR_FAIL_NULL_V(node, nullptr);
 	if (TextureRect const* texture_rect = Object::cast_to<TextureRect>(node); texture_rect != nullptr) {
 		const Ref<Texture2D> texture = texture_rect->get_texture();
 		ERR_FAIL_NULL_V_MSG(texture, nullptr, vformat("Failed to get Texture2D from TextureRect %s", node->get_name()));
 		return texture;
-	} else if (Button const* button = Object::cast_to<Button>(node); button != nullptr) {
+	} else if (GUIButton const* button = Object::cast_to<GUIButton>(node); button != nullptr) {
 		static const StringName theme_name_normal = "normal";
 		const Ref<StyleBox> stylebox = button->get_theme_stylebox(theme_name_normal);
 		ERR_FAIL_NULL_V_MSG(
-			stylebox, nullptr, vformat("Failed to get StyleBox %s from Button %s", theme_name_normal, node->get_name())
+			stylebox, nullptr, vformat("Failed to get StyleBox %s from GUIButton %s", theme_name_normal, node->get_name())
 		);
 		const Ref<StyleBoxTexture> stylebox_texture = stylebox;
 		ERR_FAIL_NULL_V_MSG(
 			stylebox_texture, nullptr, vformat(
-				"Failed to cast StyleBox %s from Button %s to type StyleBoxTexture", theme_name_normal, node->get_name()
+				"Failed to cast StyleBox %s from GUIButton %s to type StyleBoxTexture", theme_name_normal, node->get_name()
 			)
 		);
 		const Ref<Texture2D> result = stylebox_texture->get_texture();
 		ERR_FAIL_NULL_V_MSG(
 			result, nullptr,
-			vformat("Failed to get Texture2D from StyleBoxTexture %s from Button %s", theme_name_normal, node->get_name())
+			vformat("Failed to get Texture2D from StyleBoxTexture %s from GUIButton %s", theme_name_normal, node->get_name())
 		);
 		return result;
 	}
 	ERR_FAIL_V_MSG(
-		nullptr, vformat("Failed to cast node %s from type %s to TextureRect or Button", node->get_name(), node->get_class())
+		nullptr, vformat(
+			"Failed to cast node %s from type %s to TextureRect or GUIButton", node->get_name(), node->get_class()
+		)
 	);
 }
 
@@ -185,30 +183,6 @@ Ref<Texture2D> GUINode::get_texture_from_nodepath(NodePath const& path) const {
 	return get_texture_from_node(get_node_internal(path));
 }
 
-template<std::derived_from<Texture2D> T>
-static Ref<T> _cast_texture(Ref<Texture2D> const& texture) {
-	ERR_FAIL_NULL_V(texture, nullptr);
-	const Ref<T> result = texture;
-	ERR_FAIL_NULL_V_MSG(
-		result, nullptr, vformat("Failed to cast Texture2D from type %s to %s", texture->get_class(), T::get_class_static())
-	);
-	return result;
-}
-
-#define TEXTURE_GET_FUNCTIONS(type, name) \
-	Ref<type> GUINode::get_##name##_from_node(Node* node) { \
-		return _cast_texture<type>(get_texture_from_node(node)); \
-	} \
-	Ref<type> GUINode::get_##name##_from_nodepath(NodePath const& path) const { \
-		return _cast_texture<type>(get_texture_from_nodepath(path)); \
-	}
-
-APPLY_TO_TEXTURE_TYPES(TEXTURE_GET_FUNCTIONS)
-
-#undef TEXTURE_GET_FUNCTIONS
-
-#undef APPLY_TO_CHILD_TYPES
-
 Error GUINode::hide_node(NodePath const& path) const {
 	CanvasItem* node = _cast_node<CanvasItem>(get_node_internal(path));
 	ERR_FAIL_NULL_V(node, FAILED);
diff --git a/extension/src/openvic-extension/classes/GUINode.hpp b/extension/src/openvic-extension/classes/GUINode.hpp
index 73ca92b..453263a 100644
--- a/extension/src/openvic-extension/classes/GUINode.hpp
+++ b/extension/src/openvic-extension/classes/GUINode.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include <godot_cpp/classes/bit_map.hpp>
-#include <godot_cpp/classes/button.hpp>
 #include <godot_cpp/classes/control.hpp>
 #include <godot_cpp/classes/image.hpp>
 #include <godot_cpp/classes/input_event.hpp>
@@ -10,20 +9,21 @@
 #include <godot_cpp/classes/panel.hpp>
 #include <godot_cpp/classes/ref.hpp>
 #include <godot_cpp/classes/texture2d.hpp>
-#include <godot_cpp/classes/texture_progress_bar.hpp>
-#include <godot_cpp/classes/texture_rect.hpp>
 #include <godot_cpp/templates/vector.hpp>
 #include <godot_cpp/variant/node_path.hpp>
 #include <godot_cpp/variant/rect2.hpp>
 #include <godot_cpp/variant/string.hpp>
 #include <godot_cpp/variant/vector2.hpp>
 
-#include "openvic-extension/classes/GFXMaskedFlagTexture.hpp"
-#include "openvic-extension/classes/GFXPieChartTexture.hpp"
-#include "openvic-extension/classes/GFXSpriteTexture.hpp"
+#include "openvic-extension/classes/GUIIcon.hpp"
+#include "openvic-extension/classes/GUIIconButton.hpp"
 #include "openvic-extension/classes/GUILabel.hpp"
 #include "openvic-extension/classes/GUIListBox.hpp"
+#include "openvic-extension/classes/GUIMaskedFlag.hpp"
+#include "openvic-extension/classes/GUIMaskedFlagButton.hpp"
 #include "openvic-extension/classes/GUIOverlappingElementsBox.hpp"
+#include "openvic-extension/classes/GUIPieChart.hpp"
+#include "openvic-extension/classes/GUIProgressBar.hpp"
 #include "openvic-extension/classes/GUIScrollbar.hpp"
 
 namespace OpenVic {
@@ -51,36 +51,35 @@ namespace OpenVic {
 
 		static godot::Vector2 get_gui_position(godot::String const& gui_scene, godot::String const& gui_position);
 
-		static godot::Button* get_button_from_node(godot::Node* node);
+		static GUIIconButton* get_gui_icon_button_from_node(godot::Node* node);
+		static GUIMaskedFlagButton* get_gui_masked_flag_button_from_node(godot::Node* node);
 		static GUILabel* get_gui_label_from_node(godot::Node* node);
 		static godot::Panel* get_panel_from_node(godot::Node* node);
-		static godot::TextureProgressBar* get_progress_bar_from_node(godot::Node* node);
-		static godot::TextureRect* get_texture_rect_from_node(godot::Node* node);
+		static GUIProgressBar* get_gui_progress_bar_from_node(godot::Node* node);
+		static GUIIcon* get_gui_icon_from_node(godot::Node* node);
+		static GUIMaskedFlag* get_gui_masked_flag_from_node(godot::Node* node);
+		static GUIPieChart* get_gui_pie_chart_from_node(godot::Node* node);
 		static GUIOverlappingElementsBox* get_gui_overlapping_elements_box_from_node(godot::Node* node);
 		static GUIScrollbar* get_gui_scrollbar_from_node(godot::Node* node);
 		static GUIListBox* get_gui_listbox_from_node(godot::Node* node);
 		static godot::LineEdit* get_line_edit_from_node(godot::Node* node);
 
-		godot::Button* get_button_from_nodepath(godot::NodePath const& path) const;
+		GUIIconButton* get_gui_icon_button_from_nodepath(godot::NodePath const& path) const;
+		GUIMaskedFlagButton* get_gui_masked_flag_button_from_nodepath(godot::NodePath const& path) const;
 		GUILabel* get_gui_label_from_nodepath(godot::NodePath const& path) const;
 		godot::Panel* get_panel_from_nodepath(godot::NodePath const& path) const;
-		godot::TextureProgressBar* get_progress_bar_from_nodepath(godot::NodePath const& path) const;
-		godot::TextureRect* get_texture_rect_from_nodepath(godot::NodePath const& path) const;
+		GUIProgressBar* get_gui_progress_bar_from_nodepath(godot::NodePath const& path) const;
+		GUIIcon* get_gui_icon_from_nodepath(godot::NodePath const& path) const;
+		GUIMaskedFlag* get_gui_masked_flag_from_nodepath(godot::NodePath const& path) const;
+		GUIPieChart* get_gui_pie_chart_from_nodepath(godot::NodePath const& path) const;
 		GUIOverlappingElementsBox* get_gui_overlapping_elements_box_from_nodepath(godot::NodePath const& path) const;
 		GUIScrollbar* get_gui_scrollbar_from_nodepath(godot::NodePath const& path) const;
 		GUIListBox* get_gui_listbox_from_nodepath(godot::NodePath const& path) const;
 		godot::LineEdit* get_line_edit_from_nodepath(godot::NodePath const& path) const;
 
-		/* Helper functions to get textures from TextureRects and Buttons. */
+		/* Helper functions to get textures from TextureRects and GUIButtons. */
 		static godot::Ref<godot::Texture2D> get_texture_from_node(godot::Node* node);
-		static godot::Ref<GFXSpriteTexture> get_gfx_sprite_texture_from_node(godot::Node* node);
-		static godot::Ref<GFXMaskedFlagTexture> get_gfx_masked_flag_texture_from_node(godot::Node* node);
-		static godot::Ref<GFXPieChartTexture> get_gfx_pie_chart_texture_from_node(godot::Node* node);
-
 		godot::Ref<godot::Texture2D> get_texture_from_nodepath(godot::NodePath const& path) const;
-		godot::Ref<GFXSpriteTexture> get_gfx_sprite_texture_from_nodepath(godot::NodePath const& path) const;
-		godot::Ref<GFXMaskedFlagTexture> get_gfx_masked_flag_texture_from_nodepath(godot::NodePath const& path) const;
-		godot::Ref<GFXPieChartTexture> get_gfx_pie_chart_texture_from_nodepath(godot::NodePath const& path) const;
 
 		godot::Error hide_node(godot::NodePath const& path) const;
 		godot::Error hide_nodes(godot::TypedArray<godot::NodePath> const& paths) const;
diff --git a/extension/src/openvic-extension/classes/GUIPieChart.cpp b/extension/src/openvic-extension/classes/GUIPieChart.cpp
new file mode 100644
index 0000000..a8ed087
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIPieChart.cpp
@@ -0,0 +1,66 @@
+#include "GUIPieChart.hpp"
+
+#include "openvic-extension/utility/ClassBindings.hpp"
+
+using namespace godot;
+using namespace OpenVic;
+using namespace OpenVic::Utilities::literals;
+
+void GUIPieChart::_bind_methods() {
+	OV_BIND_METHOD(GUIPieChart::get_gfx_pie_chart_texture);
+	OV_BIND_METHOD(GUIPieChart::set_gfx_pie_chart_name, { "gfx_pie_chart_name" });
+	OV_BIND_METHOD(GUIPieChart::get_gfx_pie_chart_name);
+	OV_BIND_METHOD(GUIPieChart::set_slices_array, { "new_slices" });
+}
+
+Error GUIPieChart::set_gfx_pie_chart(GFX::PieChart const* gfx_pie_chart) {
+	const bool needs_setting = gfx_pie_chart_texture.is_null();
+
+	if (needs_setting) {
+		gfx_pie_chart_texture.instantiate();
+		ERR_FAIL_NULL_V(gfx_pie_chart_texture, FAILED);
+	}
+
+	const Error err = gfx_pie_chart_texture->set_gfx_pie_chart(gfx_pie_chart);
+
+	if (needs_setting) {
+		set_texture(gfx_pie_chart_texture);
+	}
+
+	return err;
+}
+
+Ref<GFXPieChartTexture> GUIPieChart::get_gfx_pie_chart_texture() const {
+	ERR_FAIL_NULL_V(gfx_pie_chart_texture, nullptr);
+
+	return gfx_pie_chart_texture;
+}
+
+Error GUIPieChart::set_gfx_pie_chart_name(String const& gfx_pie_chart_name) {
+	const bool needs_setting = gfx_pie_chart_texture.is_null();
+
+	if (needs_setting) {
+		gfx_pie_chart_texture.instantiate();
+		ERR_FAIL_NULL_V(gfx_pie_chart_texture, FAILED);
+	}
+
+	const Error err = gfx_pie_chart_texture->set_gfx_pie_chart_name(gfx_pie_chart_name);
+
+	if (needs_setting) {
+		set_texture(gfx_pie_chart_texture);
+	}
+
+	return err;
+}
+
+String GUIPieChart::get_gfx_pie_chart_name() const {
+	ERR_FAIL_NULL_V(gfx_pie_chart_texture, {});
+
+	return gfx_pie_chart_texture->get_gfx_pie_chart_name();
+}
+
+Error GUIPieChart::set_slices_array(GFXPieChartTexture::godot_pie_chart_data_t const& new_slices) const {
+	ERR_FAIL_NULL_V(gfx_pie_chart_texture, FAILED);
+
+	return gfx_pie_chart_texture->set_slices_array(new_slices);
+}
diff --git a/extension/src/openvic-extension/classes/GUIPieChart.hpp b/extension/src/openvic-extension/classes/GUIPieChart.hpp
new file mode 100644
index 0000000..6b4ac87
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIPieChart.hpp
@@ -0,0 +1,29 @@
+#pragma once
+
+#include <godot_cpp/classes/texture_rect.hpp>
+
+#include <openvic-simulation/interface/GFXSprite.hpp>
+
+#include "openvic-extension/classes/GFXPieChartTexture.hpp"
+
+namespace OpenVic {
+	class GUIPieChart : public godot::TextureRect {
+		GDCLASS(GUIPieChart, godot::TextureRect)
+
+		godot::Ref<GFXPieChartTexture> gfx_pie_chart_texture;
+
+	protected:
+		static void _bind_methods();
+
+	public:
+		godot::Error set_gfx_pie_chart(GFX::PieChart const* gfx_pie_chart);
+
+		godot::Ref<GFXPieChartTexture> get_gfx_pie_chart_texture() const;
+
+		godot::Error set_gfx_pie_chart_name(godot::String const& gfx_pie_chart_name);
+
+		godot::String get_gfx_pie_chart_name() const;
+
+		godot::Error set_slices_array(GFXPieChartTexture::godot_pie_chart_data_t const& new_slices) const;
+	};
+}
diff --git a/extension/src/openvic-extension/classes/GUIProgressBar.cpp b/extension/src/openvic-extension/classes/GUIProgressBar.cpp
new file mode 100644
index 0000000..6021746
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIProgressBar.cpp
@@ -0,0 +1,104 @@
+#include "GUIProgressBar.hpp"
+
+#include <godot_cpp/variant/utility_functions.hpp>
+
+#include "openvic-extension/singletons/AssetManager.hpp"
+#include "openvic-extension/utility/Utilities.hpp"
+
+using namespace godot;
+using namespace OpenVic;
+
+void GUIProgressBar::_bind_methods() {}
+
+Error GUIProgressBar::set_gfx_progress_bar(GFX::ProgressBar const* progress_bar) {
+	ERR_FAIL_NULL_V(progress_bar, FAILED);
+
+	AssetManager* asset_manager = AssetManager::get_singleton();
+	ERR_FAIL_NULL_V(asset_manager, FAILED);
+
+	Error err = OK;
+
+	static constexpr double MIN_VALUE = 0.0, MAX_VALUE = 1.0;
+	static constexpr uint32_t STEPS = 100;
+
+	set_nine_patch_stretch(true);
+	set_step((MAX_VALUE - MIN_VALUE) / STEPS);
+	set_min(MIN_VALUE);
+	set_max(MAX_VALUE);
+
+	using enum AssetManager::LoadFlags;
+
+	Ref<ImageTexture> back_texture;
+	if (!progress_bar->get_back_texture_file().empty()) {
+		const StringName back_texture_file = Utilities::std_to_godot_string(progress_bar->get_back_texture_file());
+		back_texture = asset_manager->get_texture(back_texture_file, LOAD_FLAG_CACHE_TEXTURE | LOAD_FLAG_FLIP_Y);
+		if (back_texture.is_null()) {
+			UtilityFunctions::push_error(
+				"Failed to load sprite back texture ", back_texture_file, " for GUIProgressBar ", get_name()
+			);
+			err = FAILED;
+		}
+	}
+	if (back_texture.is_null()) {
+		const Color back_colour = Utilities::to_godot_color(progress_bar->get_back_colour());
+		back_texture = Utilities::make_solid_colour_texture(
+			back_colour, progress_bar->get_size().x, progress_bar->get_size().y
+		);
+		if (back_texture.is_null()) {
+			UtilityFunctions::push_error(
+				"Failed to generate sprite ", back_colour, " back texture for GUIProgressBar ", get_name()
+			);
+			err = FAILED;
+		}
+	}
+	if (back_texture.is_valid()) {
+		set_under_texture(back_texture);
+	} else {
+		UtilityFunctions::push_error(
+			"Failed to create and set sprite back texture for GUIProgressBar ", get_name()
+		);
+		err = FAILED;
+	}
+
+	Ref<ImageTexture> progress_texture;
+	if (!progress_bar->get_progress_texture_file().empty()) {
+		const StringName progress_texture_file =
+			Utilities::std_to_godot_string(progress_bar->get_progress_texture_file());
+		progress_texture = asset_manager->get_texture(progress_texture_file, LOAD_FLAG_CACHE_TEXTURE | LOAD_FLAG_FLIP_Y);
+		if (progress_texture.is_null()) {
+			UtilityFunctions::push_error(
+				"Failed to load sprite progress texture ", progress_texture_file, " for GUIProgressBar ",
+				get_name()
+			);
+			err = FAILED;
+		}
+	}
+	if (progress_texture.is_null()) {
+		const Color progress_colour = Utilities::to_godot_color(progress_bar->get_progress_colour());
+		progress_texture = Utilities::make_solid_colour_texture(
+			progress_colour, progress_bar->get_size().x, progress_bar->get_size().y
+		);
+		if (progress_texture.is_null()) {
+			UtilityFunctions::push_error(
+				"Failed to generate sprite ", progress_colour, " progress texture for GUIProgressBar ",
+				get_name()
+			);
+			err = FAILED;
+		}
+	}
+	if (progress_texture.is_valid()) {
+		set_progress_texture(progress_texture);
+	} else {
+		UtilityFunctions::push_error(
+			"Failed to create and set sprite progress texture for GUIProgressBar ", get_name()
+		);
+		err = FAILED;
+	}
+
+	// TODO - work out why progress bar is missing bottom border pixel (e.g. province building expansion bar)
+	set_custom_minimum_size(
+		Utilities::to_godot_fvec2(static_cast<fvec2_t>(progress_bar->get_size()))
+	);
+
+	return err;
+}
diff --git a/extension/src/openvic-extension/classes/GUIProgressBar.hpp b/extension/src/openvic-extension/classes/GUIProgressBar.hpp
new file mode 100644
index 0000000..130ac91
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUIProgressBar.hpp
@@ -0,0 +1,17 @@
+#pragma once
+
+#include <godot_cpp/classes/texture_progress_bar.hpp>
+
+#include "openvic-simulation/interface/GFXSprite.hpp"
+
+namespace OpenVic {
+	class GUIProgressBar : public godot::TextureProgressBar {
+		GDCLASS(GUIProgressBar, godot::TextureProgressBar)
+
+	protected:
+		static void _bind_methods();
+
+	public:
+		godot::Error set_gfx_progress_bar(GFX::ProgressBar const* progress_bar);
+	};
+}
diff --git a/extension/src/openvic-extension/classes/GUITextureRect.cpp b/extension/src/openvic-extension/classes/GUITextureRect.cpp
new file mode 100644
index 0000000..13fd3bb
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUITextureRect.cpp
@@ -0,0 +1,6 @@
+#include "GUITextureRect.hpp"
+
+using namespace godot;
+using namespace OpenVic;
+
+void GUITextureRect::_bind_methods() {}
diff --git a/extension/src/openvic-extension/classes/GUITextureRect.hpp b/extension/src/openvic-extension/classes/GUITextureRect.hpp
new file mode 100644
index 0000000..afcf4da
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GUITextureRect.hpp
@@ -0,0 +1,12 @@
+#pragma once
+
+#include <godot_cpp/classes/texture_rect.hpp>
+
+namespace OpenVic {
+	class GUITextureRect : public godot::TextureRect {
+		GDCLASS(GUITextureRect, godot::TextureRect)
+
+	protected:
+		static void _bind_methods();
+	};
+}