mtgodot-poc/extension/src/python_host_node.cpp

#include "python_host_node.h"

#include <godot_cpp/core/class_db.hpp>
#include <godot_cpp/variant/utility_functions.hpp>

#include "python_stdlib.h"

#ifdef MTGODOT_HAVE_PYTHON
// Standard types only — PythonBoot.h keeps <Python-2.7/*> and the Win32 shims out of this translation
// unit, which has to stay compilable next to godot-cpp.
#include "platform/ScriptLib/PythonBoot.h"
#include "platform/EterLib/UIRenderCommands.h"
#include "platform/EterLib/RenderCommands3D.h"
#include "platform/MilesLib/AudioCommands.h"
#include "platform/PackBackend.h"
#include "../../native_render/draw_capture.h"
#include <cstdlib>
#include <cstring>
#include <string>
#include <type_traits>
#include <unordered_map>
#endif

#include <godot_cpp/classes/image.hpp>
#include <godot_cpp/variant/dictionary.hpp>
#include <godot_cpp/variant/packed_byte_array.hpp>
#include <godot_cpp/variant/packed_color_array.hpp>
#include <godot_cpp/variant/packed_float32_array.hpp>
#include <godot_cpp/variant/packed_int32_array.hpp>
#include <godot_cpp/variant/packed_vector2_array.hpp>
#include <godot_cpp/variant/packed_vector3_array.hpp>
#include <godot_cpp/variant/string_name.hpp>


using namespace godot;

namespace mtgodot {

#ifdef MTGODOT_HAVE_PYTHON

String Metin2PythonHost::start(const String &stdlib_path) {
	String path = stdlib_path;
	if (path.is_empty()) {
		path = Metin2Python::stdlib_path(false);
		if (path.is_empty()) {
			return String("python27.zip unavailable: ") + Metin2Python::last_error();
		}
	}
	std::string error;
	if (!PythonBoot::Start(path.utf8().get_data(), &error)) {
		return String::utf8(error.c_str());
	}
	return String();
}

bool Metin2PythonHost::is_running() {
	return PythonBoot::IsRunning();
}

String Metin2PythonHost::run_main_script(const String &command_line) {
	std::string error;
	if (!PythonBoot::RunMainScript(command_line.utf8().get_data(), &error)) {
		return String::utf8(error.c_str());
	}
	return String();
}

String Metin2PythonHost::run_line(const String &source) {
	std::string error;
	if (!PythonBoot::RunLine(source.utf8().get_data(), &error)) {
		return String::utf8(error.c_str());
	}
	return String();
}

// str(expression) from __main__, or "" when it raised (the error goes to the log like run_line's).
String Metin2PythonHost::evaluate(const String &expression) {
	std::string result, error;
	if (!PythonBoot::Evaluate(expression.utf8().get_data(), &result, &error)) {
		UtilityFunctions::push_error(String::utf8(error.c_str()));
		return String();
	}
	return String::utf8(result.c_str());
}

bool Metin2PythonHost::is_app_looping() { return PythonBoot::IsAppLooping(); }

void Metin2PythonHost::set_ui_size(int width, int height) { PythonBoot::SetUISize(width, height); }
void Metin2PythonHost::ui_mouse_move(int x, int y) { PythonBoot::UIMouseMove(x, y); }
void Metin2PythonHost::ui_mouse_button(int button, bool pressed, int x, int y) {
	PythonBoot::UIMouseButton(button, pressed, x, y);
}
void Metin2PythonHost::ui_mouse_wheel(int delta) { PythonBoot::UIMouseWheel(delta); }
void Metin2PythonHost::ui_key(int key, bool pressed) { PythonBoot::UIKey(key, pressed); }
void Metin2PythonHost::ui_char(int codepoint) { PythonBoot::UIChar(unsigned(codepoint)); }
void Metin2PythonHost::ui_ime_key(int vkey) { PythonBoot::UIIMEKeyDown(vkey); }
void Metin2PythonHost::ui_update() { PythonBoot::UIUpdate(); }
namespace {
Dictionary ui_command_item(const UIRenderCommand &command) {
	static const StringName s_kind("kind");
	static const StringName s_x1("x1");
	static const StringName s_y1("y1");
	static const StringName s_x2("x2");
	static const StringName s_y2("y2");
	static const StringName s_argb("argb");
	static const StringName s_end_argb("end_argb");
	static const StringName s_clip_x1("clip_x1");
	static const StringName s_clip_y1("clip_y1");
	static const StringName s_clip_x2("clip_x2");
	static const StringName s_clip_y2("clip_y2");
	static const StringName s_text("text");
	static const StringName s_quad("quad");
	static const StringName s_uv("uv");
	static const StringName s_blend("blend");
	static const StringName s_mask("mask");
	static const StringName s_mask_uv("mask_uv");
	static const StringName s_behind_3d("behind_3d");

	static const StringName s_val_bar("bar");
	static const StringName s_val_gradient_bar("gradient_bar");
	static const StringName s_val_line("line");
	static const StringName s_val_image("image");
	static const StringName s_val_text("text");
	Dictionary item;
	item[s_kind] = command.kind == UIRenderCommand::GradientBar ? s_val_gradient_bar :
		(command.kind == UIRenderCommand::Bar ? s_val_bar :
		(command.kind == UIRenderCommand::Line ? s_val_line :
			(command.kind == UIRenderCommand::Image ? s_val_image : s_val_text)));
	item[s_x1] = command.x1;
	item[s_y1] = command.y1;
	item[s_x2] = command.x2;
	item[s_y2] = command.y2;
	item[s_argb] = static_cast<int64_t>(command.argb);
	if (command.kind == UIRenderCommand::GradientBar)
		item[s_end_argb] = static_cast<int64_t>(command.end_argb);
	item[s_clip_x1] = command.clip_x1;
	item[s_clip_y1] = command.clip_y1;
	item[s_clip_x2] = command.clip_x2;
	item[s_clip_y2] = command.clip_y2;
	if (command.kind == UIRenderCommand::Text || command.kind == UIRenderCommand::Image)
		item[s_text] = String::utf8(command.text.c_str());
	if (command.quad) {
		PackedVector2Array quad;
		quad.resize(4);
		Vector2 *qptr = quad.ptrw();
		for (int i = 0; i < 4; ++i)
			qptr[i] = Vector2(command.qx[i], command.qy[i]);
		item[s_quad] = quad;

		PackedVector2Array uv;
		uv.resize(4);
		Vector2 *uvptr = uv.ptrw();
		uvptr[0] = Vector2(command.su, command.sv);
		uvptr[1] = Vector2(command.eu, command.sv);
		uvptr[2] = Vector2(command.su, command.ev);
		uvptr[3] = Vector2(command.eu, command.ev);
		item[s_uv] = uv;
		item[s_blend] = command.blend;
		if (!command.mask.empty()) {
			item[s_mask] = String::utf8(command.mask.c_str());
			PackedVector2Array mask_uv;
			mask_uv.resize(4);
			Vector2 *mptr = mask_uv.ptrw();
			for (int i = 0; i < 4; ++i)
				mptr[i] = Vector2(command.mu[i], command.mv[i]);
			item[s_mask_uv] = mask_uv;
		}
	}
	item[s_behind_3d] = command.behind_3d;
	return item;
}
} // namespace

Array Metin2PythonHost::ui_render_commands() {
	PythonBoot::UIRender();
	static std::uint64_t cached_frame_id = UINT64_MAX;
	static Array cached_commands;
	const std::uint64_t frame_id = UIRenderFrameId();
	if (cached_frame_id == frame_id)
		return cached_commands;
	const auto &commands = UIRenderCommands();
	Array out;
	out.resize(static_cast<int64_t>(commands.size()));
	for (size_t idx = 0; idx < commands.size(); ++idx)
		out[static_cast<int64_t>(idx)] = ui_command_item(commands[idx]);
	cached_frame_id = frame_id;
	cached_commands = out;
	return out;
}

Array Metin2PythonHost::ui_render_commands_batched() {
	PythonBoot::UIRender();
	static std::uint64_t cached_frame_id = UINT64_MAX;
	static Array cached_commands;
	const std::uint64_t frame_id = UIRenderFrameId();
	if (cached_frame_id == frame_id)
		return cached_commands;

	const auto &commands = UIRenderCommands();
	const auto batchable = [](const UIRenderCommand &c) {
		return c.kind == UIRenderCommand::Image && c.quad && c.text.rfind("mem:", 0) == 0 &&
			c.mask.empty() && c.blend == 0 && c.x1 >= c.clip_x1 && c.y1 >= c.clip_y1 &&
			c.x2 <= c.clip_x2 && c.y2 <= c.clip_y2;
	};
	Array out;
	for (size_t i = 0; i < commands.size();) {
		const UIRenderCommand &first = commands[i];
		if (!batchable(first)) {
			out.push_back(ui_command_item(first));
			++i;
			continue;
		}
		size_t end = i + 1;
		while (end < commands.size() && batchable(commands[end]) &&
				commands[end].text == first.text && commands[end].behind_3d == first.behind_3d)
			++end;
		if (end == i + 1) {
			out.push_back(ui_command_item(first));
			i = end;
			continue;
		}
		const int64_t count = static_cast<int64_t>(end - i);
		PackedVector2Array points, uvs;
		PackedColorArray colors;
		PackedInt32Array indices;
		points.resize(count * 4);
		uvs.resize(count * 4);
		colors.resize(count * 4);
		indices.resize(count * 6);
		Vector2 *point_data = points.ptrw(), *uv_data = uvs.ptrw();
		Color *color_data = colors.ptrw();
		int32_t *index_data = indices.ptrw();
		for (int64_t j = 0; j < count; ++j) {
			const UIRenderCommand &c = commands[i + static_cast<size_t>(j)];
			const int64_t v = j * 4, t = j * 6;
			point_data[v] = Vector2(c.qx[0], c.qy[0]);
			point_data[v + 1] = Vector2(c.qx[1], c.qy[1]);
			point_data[v + 2] = Vector2(c.qx[3], c.qy[3]);
			point_data[v + 3] = Vector2(c.qx[2], c.qy[2]);
			uv_data[v] = Vector2(c.su, c.sv);
			uv_data[v + 1] = Vector2(c.eu, c.sv);
			uv_data[v + 2] = Vector2(c.eu, c.ev);
			uv_data[v + 3] = Vector2(c.su, c.ev);
			const Color color(((c.argb >> 16) & 255) / 255.0f, ((c.argb >> 8) & 255) / 255.0f,
					(c.argb & 255) / 255.0f, ((c.argb >> 24) & 255) / 255.0f);
			for (int k = 0; k < 4; ++k)
				color_data[v + k] = color;
			const int32_t base = static_cast<int32_t>(v);
			index_data[t] = base;
			index_data[t + 1] = base + 1;
			index_data[t + 2] = base + 2;
			index_data[t + 3] = base;
			index_data[t + 4] = base + 2;
			index_data[t + 5] = base + 3;
		}
		Dictionary item;
		item["kind"] = StringName("glyph_batch");
		item["text"] = String::utf8(first.text.c_str());
		item["behind_3d"] = first.behind_3d;
		item["points"] = points;
		item["uvs"] = uvs;
		item["colors"] = colors;
		item["indices"] = indices;
		item["glyph_count"] = count;
		out.push_back(item);
		i = end;
	}
	cached_frame_id = frame_id;
	cached_commands = out;
	return out;
}

bool Metin2PythonHost::has_3d_draws() { return !Render3DDraws().empty(); }

Ref<Image> Metin2PythonHost::memory_texture(const String &name, int64_t known_revision) {
	UIMemoryTexture texture;
	if (!UIRenderMemoryTexture(name.utf8().get_data(), &texture) || texture.width <= 0 || texture.height <= 0)
		return Ref<Image>();
	if (known_revision >= 0 && texture.revision == static_cast<std::uint32_t>(known_revision))
		return Ref<Image>();
	PackedByteArray rgba;
	rgba.resize(static_cast<int64_t>(texture.argb.size()) * 4);
	uint8_t *out = rgba.ptrw();
	for (std::uint32_t argb : texture.argb) {
		*out++ = static_cast<uint8_t>(argb >> 16);
		*out++ = static_cast<uint8_t>(argb >> 8);
		*out++ = static_cast<uint8_t>(argb);
		*out++ = static_cast<uint8_t>(argb >> 24);
	}
	return Image::create_from_data(texture.width, texture.height, false, Image::FORMAT_RGBA8, rgba);
}

namespace {

PackedFloat32Array floats(const float *values, int count) {
	PackedFloat32Array out;
	out.resize(count);
	for (int i = 0; i < count; ++i)
		out[i] = values[i];
	return out;
}

Color argb_color(std::uint32_t argb) {
	return Color(((argb >> 16) & 255) / 255.0f, ((argb >> 8) & 255) / 255.0f, (argb & 255) / 255.0f,
		((argb >> 24) & 255) / 255.0f);
}

bool read_pack_texture(const std::string &vpath, std::vector<std::uint8_t> &bytes) {
	if (vpath.empty() || !mtpack40250::ready())
		return false;
	std::string norm = vpath;
	for (char &ch : norm)
		if (ch == '\\')
			ch = '/';
	std::string stripped = norm;
	if (stripped.size() >= 2 && stripped[1] == ':')
		stripped = stripped.substr(2);
	while (!stripped.empty() && stripped.front() == '/')
		stripped.erase(stripped.begin());
	auto lower = [](std::string s) {
		for (char &ch : s)
			if (ch >= 'A' && ch <= 'Z')
				ch = static_cast<char>(ch - 'A' + 'a');
		return s;
	};
	for (const std::string &candidate : {
			norm, stripped, "d:/" + stripped,
			lower(norm), lower(stripped), lower("d:/" + stripped)}) {
		if (mtpack40250::read(candidate, bytes) && !bytes.empty())
			return true;
	}
	return false;
}

} // namespace

Array Metin2PythonHost::render3d_draws() {
	struct CachedGeometry {
		std::uint64_t revision;
		std::uint64_t last_used;
		Dictionary arrays;
	};
	static std::unordered_map<std::uint64_t, CachedGeometry> geometry_cache;
	static std::uint64_t extraction = 0;
	++extraction;
	const auto &draws = Render3DDraws();
	static bool capture_written = false;
	if (!capture_written) {
		const char *capture_path = std::getenv("MT_NATIVE_CAPTURE_PATH");
		const char *minimum_text = std::getenv("MT_NATIVE_CAPTURE_MIN_DRAWS");
		const unsigned long minimum = minimum_text ? std::strtoul(minimum_text, nullptr, 10) : 100UL;
		if (capture_path && *capture_path && draws.size() >= minimum) {
			capture_written = true;
			try {
				std::unordered_map<std::string, std::vector<std::uint8_t>> textures;
				auto add_texture = [&](const std::string &name) {
					if (name.empty() || textures.count(name))
						return;
					if (name.rfind("mem:", 0) == 0) {
						UIMemoryTexture mem_tex;
						if (UIRenderMemoryTexture(name, &mem_tex) && mem_tex.width > 0 && mem_tex.height > 0) {
							auto mtra = native_draw_capture::encode_raw_argb_as_mtra(
								static_cast<std::uint32_t>(mem_tex.width),
								static_cast<std::uint32_t>(mem_tex.height),
								mem_tex.argb.data());
							if (!mtra.empty())
								textures.emplace(name, std::move(mtra));
						}
						return;
					}
					std::vector<std::uint8_t> bytes;
					if (read_pack_texture(name, bytes))
						textures.emplace(name, std::move(bytes));
				};
				for (const Render3DDraw &draw : draws) {
					add_texture(draw.texture0);
					add_texture(draw.texture1);
				}
				const auto &ui_commands = UIRenderCommands();
				for (const UIRenderCommand &cmd : ui_commands) {
					if (cmd.kind == UIRenderCommand::Image) {
						add_texture(cmd.text);
						add_texture(cmd.mask);
					}
				}
				unsigned ui_w = 0, ui_h = 0;
				UIRenderGetSize(&ui_w, &ui_h);
				native_draw_capture::write(
					capture_path, draws, textures,
					ui_w ? ui_w : 960u, ui_h ? ui_h : 640u, ui_commands);
				UtilityFunctions::print(
					"native draw capture: ", capture_path,
					" draws=", static_cast<int64_t>(draws.size()),
					" ui_commands=", static_cast<int64_t>(ui_commands.size()),
					" textures=", static_cast<int64_t>(textures.size()));
			} catch (const std::exception &error) {
				UtilityFunctions::printerr("native draw capture failed: ", error.what());
			}
		}
	}

	Array out;
	out.resize(static_cast<int64_t>(draws.size()));
	int64_t draw_index = 0;
	for (const Render3DDraw &draw : draws) {
		if (draw.clear_flags)
			continue; // back-buffer clears are consumed by the native renderer only
		Dictionary item;
		item["geometry_key"] = static_cast<int64_t>(draw.geometry_key);
		item["geometry_revision"] = static_cast<int64_t>(draw.geometry_revision);
		item["world"] = floats(draw.world, 16);
		item["view"] = floats(draw.view, 16);
		item["proj"] = floats(draw.proj, 16);
		item["texture0"] = String::utf8(draw.texture0.c_str());
		item["texture1"] = String::utf8(draw.texture1.c_str());
		item["pretransformed"] = draw.pretransformed;
		item["lines"] = draw.lines;

		// Stage-0 coordinates the D3D8 pipeline generates or transforms depend on per-draw matrices,
		// so such draws carry them outside the geometry cache.
		const bool stage0_texgen = (draw.texcoord_index[0] & 0xFFFF0000u) != 0 ||
			(draw.texcoord_index[0] & 0xFFFFu) != 0 || draw.texture_transform_flags[0] != 0;
		if (stage0_texgen)
			item["geometry_key"] = static_cast<int64_t>(0);
		Dictionary geometry;
		if (draw.geometry_key != 0 && !stage0_texgen) {
			auto cached = geometry_cache.find(draw.geometry_key);
			if (cached != geometry_cache.end() && cached->second.revision == draw.geometry_revision) {
				cached->second.last_used = extraction;
				geometry = cached->second.arrays;
			}
		}
		if (geometry.is_empty()) {
			PackedVector3Array positions;
			positions.resize(static_cast<int64_t>(draw.positions.size() / 3));
			if constexpr (sizeof(Vector3) == sizeof(float) * 3 && std::is_trivially_copyable_v<Vector3>) {
				if (!draw.positions.empty())
					std::memcpy(positions.ptrw(), draw.positions.data(), draw.positions.size() * sizeof(float));
			} else {
				Vector3 *dst = positions.ptrw();
				for (int64_t i = 0; i < positions.size(); ++i)
					dst[i] = Vector3(draw.positions[i * 3], draw.positions[i * 3 + 1], draw.positions[i * 3 + 2]);
			}
			geometry["positions"] = positions;
			if (!draw.rhw.empty())
				geometry["rhw"] = floats(draw.rhw.data(), static_cast<int>(draw.rhw.size()));
			if (!draw.normals.empty()) {
				PackedVector3Array normals;
				normals.resize(static_cast<int64_t>(draw.normals.size() / 3));
				if constexpr (sizeof(Vector3) == sizeof(float) * 3 && std::is_trivially_copyable_v<Vector3>) {
					std::memcpy(normals.ptrw(), draw.normals.data(), draw.normals.size() * sizeof(float));
				} else {
					Vector3 *dst = normals.ptrw();
					for (int64_t i = 0; i < normals.size(); ++i)
						dst[i] = Vector3(draw.normals[i * 3], draw.normals[i * 3 + 1], draw.normals[i * 3 + 2]);
				}
				geometry["normals"] = normals;
			}
			auto uvs = [](const std::vector<float> &values) {
			PackedVector2Array out;
			out.resize(static_cast<int64_t>(values.size() / 2));
			if constexpr (sizeof(Vector2) == sizeof(float) * 2 && std::is_trivially_copyable_v<Vector2>) {
				if (!values.empty())
					std::memcpy(out.ptrw(), values.data(), values.size() * sizeof(float));
			} else {
				Vector2 *dst = out.ptrw();
				for (int64_t i = 0; i < out.size(); ++i)
					dst[i] = Vector2(values[i * 2], values[i * 2 + 1]);
			}
			return out;
		};
			if (stage0_texgen) {
				std::vector<float> stage_uv;
				Render3DStageTexcoords(draw, 0, stage_uv);
				geometry["uv0"] = uvs(stage_uv);
			} else if (!draw.uv0.empty())
				geometry["uv0"] = uvs(draw.uv0);
			if (!draw.uv1.empty())
				geometry["uv1"] = uvs(draw.uv1);
			if (!draw.diffuse.empty()) {
				PackedColorArray colors;
				colors.resize(static_cast<int64_t>(draw.diffuse.size()));
				for (int64_t i = 0; i < colors.size(); ++i)
					colors[i] = argb_color(draw.diffuse[i]);
				geometry["diffuse"] = colors;
			}
			PackedInt32Array indices;
			indices.resize(static_cast<int64_t>(draw.indices.size()));
			for (int64_t i = 0; i < indices.size(); ++i)
				indices[i] = static_cast<int32_t>(draw.indices[i]);
			geometry["indices"] = indices;
			if (draw.geometry_key != 0 && !stage0_texgen)
				geometry_cache[draw.geometry_key] = {draw.geometry_revision, extraction, geometry};
		}
		item.merge(geometry);

		item["alpha_blend"] = static_cast<int64_t>(draw.alpha_blend);
		item["src_blend"] = static_cast<int64_t>(draw.src_blend);
		item["dest_blend"] = static_cast<int64_t>(draw.dest_blend);
		item["alpha_test"] = static_cast<int64_t>(draw.alpha_test);
		item["alpha_ref"] = static_cast<int64_t>(draw.alpha_ref);
		item["alpha_func"] = static_cast<int64_t>(draw.alpha_func);
		item["cull_mode"] = static_cast<int64_t>(draw.cull_mode);
		item["z_enable"] = static_cast<int64_t>(draw.z_enable);
		item["z_write"] = static_cast<int64_t>(draw.z_write);
		item["z_func"] = static_cast<int64_t>(draw.z_func);
		item["lighting"] = static_cast<int64_t>(draw.lighting);
		item["texture_factor"] = static_cast<int64_t>(draw.texture_factor);
		bool uses_tf = false;
		for (int s = 0; s < 2; ++s) {
			if (draw.color_op[s] > 1 &&
				(((draw.color_arg1[s] & 0xF) == 3) || ((draw.color_arg2[s] & 0xF) == 3)))
				uses_tf = true;
			if (draw.alpha_op[s] > 1 &&
				(((draw.alpha_arg1[s] & 0xF) == 3) || ((draw.alpha_arg2[s] & 0xF) == 3)))
				uses_tf = true;
		}
		item["uses_tf"] = uses_tf;
		item["fog_enable"] = static_cast<int64_t>(draw.fog_enable);
		item["color_op"] = static_cast<int64_t>(draw.color_op[0]);
		item["alpha_op"] = static_cast<int64_t>(draw.alpha_op[0]);
		item["material_diffuse"] = Color(draw.material_diffuse[0], draw.material_diffuse[1],
			draw.material_diffuse[2], draw.material_diffuse[3]);
		item["material_ambient"] = Color(draw.material_ambient[0], draw.material_ambient[1],
			draw.material_ambient[2], draw.material_ambient[3]);
		item["material_emissive"] = Color(draw.material_emissive[0], draw.material_emissive[1],
			draw.material_emissive[2], draw.material_emissive[3]);
		item["light0"] = draw.light0;
		item["light0_direction"] = Vector3(draw.light0_direction[0], draw.light0_direction[1],
			draw.light0_direction[2]);
		item["light0_diffuse"] = Color(draw.light0_diffuse[0], draw.light0_diffuse[1], draw.light0_diffuse[2],
			draw.light0_diffuse[3]);
		item["light0_ambient"] = Color(draw.light0_ambient[0], draw.light0_ambient[1], draw.light0_ambient[2],
			draw.light0_ambient[3]);
		item["ambient"] = argb_color(draw.ambient);
		PackedFloat32Array vp;
		vp.resize(4);
		vp[0] = draw.viewport[0];
		vp[1] = draw.viewport[1];
		vp[2] = draw.viewport[2];
		vp[3] = draw.viewport[3];
		item["viewport"] = vp;
		out[draw_index++] = item;
	}
	out.resize(draw_index);
	if (extraction % 120 == 0) {
		for (auto it = geometry_cache.begin(); it != geometry_cache.end();) {
			if (extraction - it->second.last_used > 120)
				it = geometry_cache.erase(it);
			else
				++it;
		}
	}
	return out;
}

Array Metin2PythonHost::audio_commands() {
	Array out;
	for (const auto &cmd : DrainAudioCommands()) {
		Dictionary item;
		switch (cmd.type) {
		case AudioCommand::PlaySound2D: item["type"] = "play_sound_2d"; break;
		case AudioCommand::PlaySound3D: item["type"] = "play_sound_3d"; break;
		case AudioCommand::StopSound3D: item["type"] = "stop_sound_3d"; break;
		case AudioCommand::StopAllSound3D: item["type"] = "stop_all_sound_3d"; break;
		case AudioCommand::PlayMusic: item["type"] = "play_music"; break;
		case AudioCommand::FadeOutMusic: item["type"] = "fade_out_music"; break;
		case AudioCommand::FadeOutAllMusic: item["type"] = "fade_out_all_music"; break;
		case AudioCommand::SetSoundVolume: item["type"] = "set_sound_volume"; break;
		case AudioCommand::SetMusicVolume: item["type"] = "set_music_volume"; break;
		case AudioCommand::FadeInMusic: item["type"] = "fade_in_music"; break;
		case AudioCommand::FadeLimitOutMusic: item["type"] = "fade_limit_out_music"; break;
		case AudioCommand::SetSoundVolume3D: item["type"] = "set_sound_volume_3d"; break;
		default: continue;
		}
		item["filename"] = String::utf8(cmd.filename.c_str());
		item["x"] = cmd.x;
		item["y"] = cmd.y;
		item["z"] = cmd.z;
		item["volume"] = cmd.volume;
		item["speed"] = cmd.speed;
		item["play_count"] = cmd.play_count;
		item["id"] = cmd.id;
		out.append(item);
	}
	return out;
}

String Metin2PythonHost::current_map_name() {
	return String::utf8(PythonBoot::CurrentMapName().c_str());
}

void Metin2PythonHost::stop() {
	PythonBoot::Stop();
}

#else

// Built without -DMTGODOT_EMBED_PYTHON=ON: the class is still registered so GDScript can tell "no
// interpreter in this build" apart from "the interpreter failed to start".
String Metin2PythonHost::start(const String &) {
	return String("this build has no embedded Python (-DMTGODOT_EMBED_PYTHON=ON)");
}

bool Metin2PythonHost::is_running() {
	return false;
}

String Metin2PythonHost::run_main_script(const String &) {
	return String("this build has no embedded Python (-DMTGODOT_EMBED_PYTHON=ON)");
}

String Metin2PythonHost::run_line(const String &) {
	return String("this build has no embedded Python (-DMTGODOT_EMBED_PYTHON=ON)");
}

String Metin2PythonHost::evaluate(const String &) { return String(); }

bool Metin2PythonHost::is_app_looping() { return false; }
void Metin2PythonHost::set_ui_size(int, int) {}
void Metin2PythonHost::ui_mouse_move(int, int) {}
void Metin2PythonHost::ui_mouse_button(int, bool, int, int) {}
void Metin2PythonHost::ui_mouse_wheel(int) {}
void Metin2PythonHost::ui_key(int, bool) {}
void Metin2PythonHost::ui_char(int) {}
void Metin2PythonHost::ui_ime_key(int) {}
void Metin2PythonHost::ui_update() {}
Array Metin2PythonHost::ui_render_commands() { return Array(); }
Array Metin2PythonHost::ui_render_commands_batched() { return Array(); }
bool Metin2PythonHost::has_3d_draws() { return false; }
Ref<Image> Metin2PythonHost::memory_texture(const String &, int64_t) { return Ref<Image>(); }
Array Metin2PythonHost::render3d_draws() { return Array(); }
Array Metin2PythonHost::audio_commands() { return Array(); }
String Metin2PythonHost::current_map_name() { return String(); }

void Metin2PythonHost::stop() {
}

#endif

void Metin2PythonHost::_bind_methods() {
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("start", "stdlib_path"),
							   &Metin2PythonHost::start, DEFVAL(String()));
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("is_running"), &Metin2PythonHost::is_running);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("evaluate", "expression"), &Metin2PythonHost::evaluate);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("run_main_script", "command_line"),
							   &Metin2PythonHost::run_main_script, DEFVAL(String()));
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("run_line", "source"), &Metin2PythonHost::run_line);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("is_app_looping"), &Metin2PythonHost::is_app_looping);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("set_ui_size", "width", "height"), &Metin2PythonHost::set_ui_size);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("ui_mouse_move", "x", "y"), &Metin2PythonHost::ui_mouse_move);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("ui_mouse_button", "button", "pressed", "x", "y"), &Metin2PythonHost::ui_mouse_button);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("ui_mouse_wheel", "delta"), &Metin2PythonHost::ui_mouse_wheel);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("ui_key", "key", "pressed"), &Metin2PythonHost::ui_key);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("ui_char", "codepoint"), &Metin2PythonHost::ui_char);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("ui_ime_key", "vkey"), &Metin2PythonHost::ui_ime_key);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("ui_update"), &Metin2PythonHost::ui_update);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("ui_render_commands"), &Metin2PythonHost::ui_render_commands);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("ui_render_commands_batched"), &Metin2PythonHost::ui_render_commands_batched);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("has_3d_draws"), &Metin2PythonHost::has_3d_draws);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("memory_texture", "name", "known_revision"),
							   &Metin2PythonHost::memory_texture, DEFVAL(-1));
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("render3d_draws"), &Metin2PythonHost::render3d_draws);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("audio_commands"), &Metin2PythonHost::audio_commands);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("current_map_name"), &Metin2PythonHost::current_map_name);
	ClassDB::bind_static_method("Metin2PythonHost", D_METHOD("stop"), &Metin2PythonHost::stop);
}

} // namespace mtgodot