Merge pull request #169 from OpenVicProject/guinode

Big UI commit - GUINode, MaskedFlag, PieChart, etc

1 files changed, 183 insertions, 0 deletions

diff --git a/extension/src/openvic-extension/classes/GFXMaskedFlagTexture.cpp b/extension/src/openvic-extension/classes/GFXMaskedFlagTexture.cpp
new file mode 100644
index 0000000..3636855
--- /dev/null
+++ b/extension/src/openvic-extension/classes/GFXMaskedFlagTexture.cpp
@@ -0,0 +1,183 @@
+#include "GFXMaskedFlagTexture.hpp"
+
+#include <godot_cpp/variant/utility_functions.hpp>
+
+#include "openvic-extension/singletons/AssetManager.hpp"
+#include "openvic-extension/singletons/GameSingleton.hpp"
+#include "openvic-extension/utility/ClassBindings.hpp"
+#include "openvic-extension/utility/Utilities.hpp"
+
+using namespace godot;
+using namespace OpenVic;
+
+using OpenVic::Utilities::godot_to_std_string;
+using OpenVic::Utilities::std_view_to_godot_string;
+using OpenVic::Utilities::std_view_to_godot_string_name;
+
+Error GFXMaskedFlagTexture::_generate_combined_image() {
+	ERR_FAIL_NULL_V(overlay_image, FAILED);
+	bool can_update = true;
+	if (combined_image.is_null() || combined_image->get_size() != overlay_image->get_size()) {
+		combined_image = Image::create(
+			overlay_image->get_width(), overlay_image->get_height(), false, overlay_image->get_format()
+		);
+		ERR_FAIL_NULL_V(combined_image, FAILED);
+		can_update = false;
+	}
+
+	if (mask_image.is_valid() && flag_image.is_valid()) {
+		const Vector2i centre_translation = (mask_image->get_size() - combined_image->get_size()) / 2;
+		for (Vector2i combined_image_point { 0, 0 }; combined_image_point.y < combined_image->get_height(); ++combined_image_point.y) {
+			for (combined_image_point.x = 0; combined_image_point.x < combined_image->get_width(); ++combined_image_point.x) {
+				const Color overlay_image_colour = overlay_image->get_pixelv(combined_image_point);
+				// Translate to mask_image coordinates, keeping the centres of each image aligned.
+				const Vector2i mask_image_point = combined_image_point + centre_translation;
+				if (
+					0 <= mask_image_point.x && mask_image_point.x < mask_image->get_width() &&
+					0 <= mask_image_point.y && mask_image_point.y < mask_image->get_height()
+				) {
+					const Color mask_image_colour = mask_image->get_pixelv(mask_image_point);
+					// Rescale from mask_image to flag_image coordinates.
+					const Vector2i flag_image_point = mask_image_point * flag_image->get_size() / mask_image->get_size();
+					Color flag_image_colour = flag_image->get_pixelv(flag_image_point);
+					flag_image_colour.a = mask_image_colour.a;
+					combined_image->set_pixelv(combined_image_point, flag_image_colour.blend(overlay_image_colour));
+				} else {
+					combined_image->set_pixelv(combined_image_point, overlay_image_colour);
+				}
+			}
+		}
+	} else {
+		combined_image->blit_rect(overlay_image, overlay_image->get_used_rect(), {});
+	}
+
+	if (can_update) {
+		update(combined_image);
+	} else {
+		set_image(combined_image);
+	}
+	return OK;
+}
+
+void GFXMaskedFlagTexture::_bind_methods() {
+	OV_BIND_METHOD(GFXMaskedFlagTexture::clear);
+
+	OV_BIND_METHOD(GFXMaskedFlagTexture::set_gfx_masked_flag_name, { "gfx_masked_flag_name" });
+	OV_BIND_METHOD(GFXMaskedFlagTexture::get_gfx_masked_flag_name);
+
+	OV_BIND_METHOD(GFXMaskedFlagTexture::set_flag_country_name_and_type, { "new_flag_country_name", "new_flag_type" });
+	OV_BIND_METHOD(GFXMaskedFlagTexture::get_flag_country_name);
+	OV_BIND_METHOD(GFXMaskedFlagTexture::get_flag_type);
+}
+
+GFXMaskedFlagTexture::GFXMaskedFlagTexture() : gfx_masked_flag { nullptr }, flag_country { nullptr } {}
+
+Ref<GFXMaskedFlagTexture> GFXMaskedFlagTexture::make_gfx_masked_flag_texture(GFX::MaskedFlag const* gfx_masked_flag) {
+	Ref<GFXMaskedFlagTexture> masked_flag_texture;
+	masked_flag_texture.instantiate();
+	ERR_FAIL_NULL_V(masked_flag_texture, nullptr);
+	if (masked_flag_texture->set_gfx_masked_flag(gfx_masked_flag) == OK) {
+		return masked_flag_texture;
+	} else {
+		return nullptr;
+	}
+}
+
+void GFXMaskedFlagTexture::clear() {
+	gfx_masked_flag = nullptr;
+	flag_country = nullptr;
+	flag_type = String {};
+
+	overlay_image.unref();
+	mask_image.unref();
+	flag_image.unref();
+}
+
+Error GFXMaskedFlagTexture::set_gfx_masked_flag(GFX::MaskedFlag const* new_gfx_masked_flag) {
+	if (gfx_masked_flag == new_gfx_masked_flag) {
+		return OK;
+	}
+	if (new_gfx_masked_flag == nullptr) {
+		clear();
+		return OK;
+	}
+	AssetManager* asset_manager = AssetManager::get_singleton();
+	ERR_FAIL_NULL_V(asset_manager, FAILED);
+
+	const StringName overlay_file = std_view_to_godot_string_name(new_gfx_masked_flag->get_overlay_file());
+	const Ref<Image> new_overlay_image = asset_manager->get_image(overlay_file);
+	ERR_FAIL_NULL_V_MSG(new_overlay_image, FAILED, vformat("Failed to load flag overlay image: %s", overlay_file));
+
+	const StringName mask_file = std_view_to_godot_string_name(new_gfx_masked_flag->get_mask_file());
+	const Ref<Image> new_mask_image = asset_manager->get_image(mask_file);
+	ERR_FAIL_NULL_V_MSG(new_mask_image, FAILED, vformat("Failed to load flag mask image: %s", mask_file));
+
+	gfx_masked_flag = new_gfx_masked_flag;
+	overlay_image = new_overlay_image;
+	mask_image = new_mask_image;
+
+	return _generate_combined_image();
+}
+
+Error GFXMaskedFlagTexture::set_gfx_masked_flag_name(String const& gfx_masked_flag_name) {
+	if (gfx_masked_flag_name.is_empty()) {
+		return set_gfx_masked_flag(nullptr);
+	}
+	GameSingleton* game_singleton = GameSingleton::get_singleton();
+	ERR_FAIL_NULL_V(game_singleton, FAILED);
+	GFX::Sprite const* sprite = game_singleton->get_game_manager().get_ui_manager().get_sprite_by_identifier(
+		godot_to_std_string(gfx_masked_flag_name)
+	);
+	ERR_FAIL_NULL_V_MSG(sprite, FAILED, vformat("GFX sprite not found: %s", gfx_masked_flag_name));
+	GFX::MaskedFlag const* new_masked_flag = sprite->cast_to<GFX::MaskedFlag>();
+	ERR_FAIL_NULL_V_MSG(
+		new_masked_flag, FAILED, vformat(
+			"Invalid type for GFX sprite %s: %s (expected %s)", gfx_masked_flag_name,
+			std_view_to_godot_string(sprite->get_type()), std_view_to_godot_string(GFX::MaskedFlag::get_type_static())
+		)
+	);
+	return set_gfx_masked_flag(new_masked_flag);
+}
+
+String GFXMaskedFlagTexture::get_gfx_masked_flag_name() const {
+	return gfx_masked_flag != nullptr ? std_view_to_godot_string(gfx_masked_flag->get_name()) : String {};
+}
+
+Error GFXMaskedFlagTexture::set_flag_country_and_type(Country const* new_flag_country, StringName const& new_flag_type) {
+	if (flag_country == new_flag_country && flag_type == new_flag_type) {
+		return OK;
+	}
+	if (new_flag_country != nullptr) {
+		GameSingleton* game_singleton = GameSingleton::get_singleton();
+		ERR_FAIL_NULL_V(game_singleton, FAILED);
+
+		const Ref<Image> new_flag_image = game_singleton->get_flag_image(new_flag_country, new_flag_type);
+		ERR_FAIL_NULL_V(new_flag_image, FAILED);
+
+		flag_country = new_flag_country;
+		flag_type = new_flag_type;
+		flag_image = new_flag_image;
+	} else {
+		flag_country = nullptr;
+		flag_type = String {};
+		flag_image.unref();
+	}
+	return _generate_combined_image();
+}
+
+Error GFXMaskedFlagTexture::set_flag_country_name_and_type(String const& new_flag_country_name, StringName const& new_flag_type) {
+	if (new_flag_country_name.is_empty()) {
+		return set_flag_country_and_type(nullptr, {});
+	}
+	GameSingleton* game_singleton = GameSingleton::get_singleton();
+	ERR_FAIL_NULL_V(game_singleton, FAILED);
+	Country const* new_flag_country = game_singleton->get_game_manager().get_country_manager().get_country_by_identifier(
+		godot_to_std_string(new_flag_country_name)
+	);
+	ERR_FAIL_NULL_V_MSG(new_flag_country, FAILED, vformat("Country not found: %s", new_flag_country_name));
+	return set_flag_country_and_type(new_flag_country, new_flag_type);
+}
+
+String GFXMaskedFlagTexture::get_flag_country_name() const {
+	return flag_country != nullptr ? std_view_to_godot_string(flag_country->get_identifier()) : String {};
+}