2 files changed, 30 insertions, 101 deletions

diff --git a/extension/src/openvic-extension/utility/Utilities.cpp b/extension/src/openvic-extension/utility/Utilities.cpp
index 5940373..e3bcce6 100644
--- a/extension/src/openvic-extension/utility/Utilities.cpp
+++ b/extension/src/openvic-extension/utility/Utilities.cpp
@@ -4,6 +4,7 @@
 
 #include <godot_cpp/classes/file_access.hpp>
 #include <godot_cpp/classes/resource_loader.hpp>
+#include <godot_cpp/classes/translation_server.hpp>
 #include <godot_cpp/variant/utility_functions.hpp>
 
 #include <gli/convert.hpp>
@@ -12,6 +13,24 @@
 using namespace godot;
 using namespace OpenVic;
 
+/* Date formatted like this: "January 1, 1836" (with the month localised, if possible). */
+String Utilities::date_to_formatted_string(Date date) {
+	std::string const& month_name = date.get_month_name();
+	const String day_and_year = " " + String::num_int64(date.get_day()) + ", " + String::num_int64(date.get_year());
+	TranslationServer const* server = TranslationServer::get_singleton();
+	if (server != nullptr) {
+		return server->translate(std_to_godot_string_name(month_name)) + day_and_year;
+	} else {
+		return std_to_godot_string(month_name) + day_and_year;
+	}
+}
+
+Ref<Resource> Utilities::load_resource(String const& path, String const& type_hint) {
+	ResourceLoader* loader = ResourceLoader::get_singleton();
+	ERR_FAIL_NULL_V(loader, nullptr);
+	return loader->load(path, type_hint);
+}
+
 static Ref<Image> load_dds_image(String const& path) {
 	gli::texture2d texture { gli::load_dds(Utilities::godot_to_std_string(path)) };
 	if (texture.empty()) {
@@ -42,7 +61,7 @@ static Ref<Image> load_dds_image(String const& path) {
 
 	PackedByteArray pixels;
 	pixels.resize(size);
-	/* Index offset used to control whether we are reading  */
+	/* Index offset used to control whether we are reading */
 	const size_t rb_idx = 2 * needs_bgr_to_rgb;
 	uint8_t const* ptr = static_cast<uint8_t const*>(texture.data());
 	for (size_t i = 0; i < size; i += 4) {
@@ -72,96 +91,3 @@ Ref<FontFile> Utilities::load_godot_font(String const& fnt_path, Ref<Image> cons
 	}
 	return font;
 }
-
-// Get the polar coordinates of a pixel relative to the center
-static Vector2 getPolar(Vector2 UVin, Vector2 center) {
-	Vector2 relcoord = (UVin - center);
-	float dist = relcoord.length();
-	float theta = std::numbers::pi / 2 + atan2(relcoord.y, relcoord.x);
-	if (theta < 0.0f) {
-		theta += std::numbers::pi * 2;
-	}
-	return { dist, theta };
-}
-
-// From thebookofshaders, returns a gradient falloff
-static inline float parabola(float base, float x, float k) {
-	return powf(base * x * (1.0 - x), k);
-}
-
-static inline float parabola_shadow(float base, float x) {
-	return base * x * x;
-}
-
-static Color pie_chart_fragment(
-	Vector2 UV, float radius, Array const& stopAngles, Array const& colours, Vector2 shadow_displacement,
-	float shadow_tightness, float shadow_radius, float shadow_thickness, Color trim_colour, float trim_size,
-	float gradient_falloff, float gradient_base, bool donut, bool donut_inner_trim, float donut_inner_radius
-) {
-
-	Vector2 coords = getPolar(UV, { 0.5, 0.5 });
-	float dist = coords.x;
-	float theta = coords.y;
-
-	Vector2 shadow_polar = getPolar(UV, shadow_displacement);
-	float shadow_peak = radius + (radius - donut_inner_radius) / 2.0;
-	float shadow_gradient =
-		shadow_thickness + parabola_shadow(shadow_tightness * -10.0, shadow_polar.x + shadow_peak - shadow_radius);
-
-	// Inner hole of the donut => make it transparent
-	if (donut && dist <= donut_inner_radius) {
-		return { 0.1, 0.1, 0.1, shadow_gradient };
-	}
-	// Inner trim
-	else if (donut && donut_inner_trim && dist <= donut_inner_radius + trim_size) {
-		return { trim_colour, 1.0 };
-	}
-	// Interior
-	else if (dist <= radius - trim_size) {
-		Color col { 1.0f, 0.0f, 0.0f };
-		for (int i = 0; i < stopAngles.size(); i++) {
-			if (theta <= float(stopAngles[i])) {
-				col = colours[i];
-				break;
-			}
-		}
-		float gradient = parabola(gradient_base, dist, gradient_falloff);
-		return { col * (1.0 - gradient), 1.0 };
-	}
-	// Outer trim
-	else if (dist <= radius) {
-		return { trim_colour, 1.0 };
-	}
-	// Outside the circle
-	else {
-		return { 0.1, 0.1, 0.1, shadow_gradient };
-	}
-}
-
-void Utilities::draw_pie_chart(
-	Ref<Image> image, Array const& stopAngles, Array const& colours, float radius, Vector2 shadow_displacement,
-	float shadow_tightness, float shadow_radius, float shadow_thickness, Color trim_colour, float trim_size,
-	float gradient_falloff, float gradient_base, bool donut, bool donut_inner_trim, float donut_inner_radius
-) {
-
-	ERR_FAIL_NULL_EDMSG(image, "Cannot draw pie chart to null image.");
-	const int32_t width = image->get_width();
-	const int32_t height = image->get_height();
-	ERR_FAIL_COND_EDMSG(width <= 0 || height <= 0, "Cannot draw pie chart to empty image.");
-	if (width != height) {
-		UtilityFunctions::push_warning("Drawing pie chart to non-square image: ", width, "x", height);
-	}
-	const int32_t size = std::min(width, height);
-	for (int32_t y = 0; y < size; ++y) {
-		for (int32_t x = 0; x < size; ++x) {
-			image->set_pixel(
-				x, y,
-				pie_chart_fragment(
-					Vector2 { static_cast<float>(x), static_cast<float>(y) } / size, radius, stopAngles, colours,
-					shadow_displacement, shadow_tightness, shadow_radius, shadow_thickness, trim_colour, trim_size,
-					gradient_falloff, gradient_base, donut, donut_inner_trim, donut_inner_radius
-				)
-			);
-		}
-	}
-}
diff --git a/extension/src/openvic-extension/utility/Utilities.hpp b/extension/src/openvic-extension/utility/Utilities.hpp
index 752f495..9537dda 100644
--- a/extension/src/openvic-extension/utility/Utilities.hpp
+++ b/extension/src/openvic-extension/utility/Utilities.hpp
@@ -4,6 +4,7 @@
 #include <godot_cpp/classes/image.hpp>
 
 #include <openvic-simulation/types/Colour.hpp>
+#include <openvic-simulation/types/Date.hpp>
 #include <openvic-simulation/types/Vector.hpp>
 
 #define ERR(x) ((x) ? OK : FAILED)
@@ -30,6 +31,8 @@ namespace OpenVic::Utilities {
 		return std_to_godot_string_name(static_cast<std::string>(str));
 	}
 
+	godot::String date_to_formatted_string(Date date);
+
 	inline godot::Color to_godot_color(colour_t colour) {
 		return {
 			colour_byte_to_float((colour >> 16) & 0xFF),
@@ -46,14 +49,14 @@ namespace OpenVic::Utilities {
 		return { vec.x, vec.y };
 	}
 
+	/* Loads a Resource from a file in the Godot project directory given by a path beginning with "res://". */
+	godot::Ref<godot::Resource> load_resource(godot::String const& path, godot::String const& type_hint = {});
+
+	/* Load an Image from anywhere on the machine, using Godot's image-loading function or, in the case of
+	 * ".dds" image files which Godot is unable to load at runtime, GLI's DDS loading function. */
 	godot::Ref<godot::Image> load_godot_image(godot::String const& path);
 
+	/* Load a Font from anywhere on the machine, combining the ".fnt" file loaded from the given path with the
+	 * already-loaded image file containing the actual characters. */
 	godot::Ref<godot::FontFile> load_godot_font(godot::String const& fnt_path, godot::Ref<godot::Image> const& image);
-
-	void draw_pie_chart(
-		godot::Ref<godot::Image> image, godot::Array const& stopAngles, godot::Array const& colours, float radius,
-		godot::Vector2 shadow_displacement, float shadow_tightness, float shadow_radius, float shadow_thickness,
-		godot::Color trim_colour, float trim_size, float gradient_falloff, float gradient_base, bool donut,
-		bool donut_inner_trim, float donut_inner_radius
-	);
 }