mirror of
https://github.com/Dingo-Shenanigans/ReSkate.git
synced 2026-10-23 21:05:58 +02:00
AyeZeeBB
8444553402
Plugins register modes (card, replaces, order, flag, players) and publish documents through reskate.throwdowns.ui: the setup page, the waiting card, HUD slots themed on the game's HUD_<theme>_* widgets, the match panel, flags and match restrictions. SmokeyDawg58's native plumbing (throwdown_menu.cpp and its .inl files) renders them and posts throwdown_ui events back. kit::flag is the one native flag registration. General services added for it: reskate.files, reskate.ui.dialog, reskate.skater push/hold/bone_cam, reskate.camera.pad_flight, reskate.physics competition, reskate.session.world, reskate.tricks feed/gesture, and world entities. His ten modes are now Lua in his plugin: the rules, referee and wire (td/rules, referee, wire), and every page and HUD document (td/ui*.lua). Extension/Modes and reskate.modes are gone, along with every race and 1-UP branch in the SDK. The plugin test drives each mode through kit events. A native setup page is never written to while it closes into flag placement: its rows are not republished, the stock page is put back once the exit is over, and the stock Players slider is left alone while a plugin flag is out. This fixes the crashes on the Deathrace button and on 1-UP's Confirm.
333 lines
16 KiB
C++
333 lines
16 KiB
C++
#include "throwdown_wire.h"
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#include <cmath>
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#include <bit>
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#include <algorithm>
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#include <stdexcept>
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namespace dingosdk::multiplayer {
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namespace {
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bool individual(std::uint64_t id) noexcept {
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return (id >> 56) == 1 && ((id >> 52) & 15) == 1 && (id & 0xffffffffULL);
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}
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bool valid_series(const std::string &series) noexcept {
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return !series.empty() && series.size() <= max_throwdown_series &&
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std::all_of(series.begin(), series.end(), [](char c) {
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return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_';
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});
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}
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// A plugin mode's key: the plugin's folder name, a /, and the mode's id.
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bool valid_mode_key(const std::string &key) noexcept {
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return key.size() >= 3 && key.size() <= max_challenge_id && key.find('/') != std::string::npos &&
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std::all_of(key.begin(), key.end(), [](char c) {
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return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_' || c == '-' ||
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c == '.' || c == '/' || c == ' ';
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});
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}
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bool valid_challenge_id(const std::string &id) noexcept {
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return !id.empty() && id.size() <= max_challenge_id && std::all_of(id.begin(), id.end(), [](char c) {
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return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_' || c == '-' || c == '.';
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});
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}
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struct Writer {
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std::vector<std::uint8_t> bytes;
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void integer(std::uint64_t value, unsigned size) {
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for (unsigned i = 0; i < size; ++i) bytes.push_back(static_cast<std::uint8_t>(value >> (8 * i)));
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}
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void blob(const std::vector<std::uint8_t> &value, unsigned size) {
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integer(value.size(), size);
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bytes.insert(bytes.end(), value.begin(), value.end());
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}
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};
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struct Reader {
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std::span<const std::uint8_t> bytes;
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std::size_t at{};
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bool ok = true;
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std::uint64_t integer(unsigned size) {
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if (!ok || size > bytes.size() - at) { ok = false; return 0; }
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std::uint64_t value{};
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for (unsigned i = 0; i < size; ++i) value |= std::uint64_t{bytes[at + i]} << (8 * i);
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at += size;
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return value;
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}
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std::vector<std::uint8_t> blob(unsigned size, std::size_t limit) {
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const auto length = integer(size);
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if (!ok || length > limit || length > bytes.size() - at) { ok = false; return {}; }
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std::vector<std::uint8_t> value(bytes.begin() + static_cast<std::ptrdiff_t>(at),
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bytes.begin() + static_cast<std::ptrdiff_t>(at + length));
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at += static_cast<std::size_t>(length);
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return value;
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}
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};
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} // namespace
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namespace {
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bool printable(const std::string &text, std::size_t limit, bool empty_ok) noexcept {
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return (empty_ok || !text.empty()) && text.size() <= limit &&
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std::all_of(text.begin(), text.end(), [](char c) { return static_cast<unsigned char>(c) >= 0x20 && c != 0x7f; });
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}
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bool valid_flag_body(const ThrowdownFlagBody &f) noexcept {
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return printable(f.id, max_flag_id, false) && f.stats.size() <= max_flag_stats &&
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std::all_of(f.stats.begin(), f.stats.end(), [](const auto &s) {
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return printable(s.first, max_flag_stat, true) && printable(s.second, max_flag_stat, true);
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}) &&
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std::isfinite(f.yaw) && std::abs(f.yaw) <= 3600.f && f.players <= 32 && f.capacity >= 1 && f.capacity <= 32 &&
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std::all_of(f.at.begin(), f.at.end(), [](float v) { return std::isfinite(v) && std::abs(v) < 100000.f; });
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}
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} // namespace
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std::vector<std::uint8_t> encode_flag_body(const ThrowdownFlagBody &f) {
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if (!valid_flag_body(f)) throw std::invalid_argument("Invalid throwdown flag");
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Writer w;
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const auto text = [&](const std::string &value) {
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w.integer(value.size(), 1);
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w.bytes.insert(w.bytes.end(), value.begin(), value.end());
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};
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text(f.id);
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for (const auto v : f.at) w.integer(std::bit_cast<std::uint32_t>(v), 4);
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w.integer(std::bit_cast<std::uint32_t>(f.yaw), 4);
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w.integer(f.players, 1);
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w.integer(f.capacity, 1);
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w.integer((f.open ? 1U : 0U) | (f.withdrawn ? 2U : 0U), 1);
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w.integer(f.stats.size(), 1);
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for (const auto &[title, value] : f.stats) { text(title); text(value); }
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return std::move(w.bytes);
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}
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std::optional<ThrowdownFlagBody> decode_flag_body(std::span<const std::uint8_t> bytes) noexcept {
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try {
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Reader r{bytes};
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ThrowdownFlagBody f;
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const auto text = [&](std::size_t limit, std::string &out) {
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const auto length = r.integer(1);
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if (!r.ok || length > limit || length > bytes.size() - r.at) return false;
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out.assign(reinterpret_cast<const char *>(bytes.data() + r.at), static_cast<std::size_t>(length));
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r.at += static_cast<std::size_t>(length);
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return true;
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};
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if (!text(max_flag_id, f.id)) return {};
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for (auto &v : f.at) v = std::bit_cast<float>(static_cast<std::uint32_t>(r.integer(4)));
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f.yaw = std::bit_cast<float>(static_cast<std::uint32_t>(r.integer(4)));
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f.players = static_cast<std::uint8_t>(r.integer(1));
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f.capacity = static_cast<std::uint8_t>(r.integer(1));
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const auto bits = r.integer(1);
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if (bits > 3) return {};
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f.open = (bits & 1) != 0;
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f.withdrawn = (bits & 2) != 0;
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const auto count = r.integer(1);
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if (!r.ok || count > max_flag_stats) return {};
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for (std::uint64_t i = 0; i < count; ++i) {
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std::pair<std::string, std::string> stat;
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if (!text(max_flag_stat, stat.first) || !text(max_flag_stat, stat.second)) return {};
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f.stats.push_back(std::move(stat));
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}
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if (!r.ok || r.at != bytes.size() || !valid_flag_body(f)) return {};
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return f;
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} catch (...) { return {}; }
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}
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bool valid_throwdown(const ThrowdownMessage &m) noexcept {
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if (!individual(m.leader) || !m.id) return false;
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switch (m.kind) {
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case ThrowdownMessage::Kind::offer:
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return valid_series(m.series) && !m.placement.empty() && m.placement.size() <= max_throwdown_params &&
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m.settings.size() <= max_throwdown_params && m.order.size() <= max_throwdown_order &&
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std::all_of(m.order.begin(), m.order.end(), individual);
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case ThrowdownMessage::Kind::start:
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case ThrowdownMessage::Kind::invite:
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return !m.order.empty() && m.order.size() <= max_throwdown_order &&
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std::all_of(m.order.begin(), m.order.end(), individual);
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case ThrowdownMessage::Kind::row: return m.board < max_throwdown_boards;
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case ThrowdownMessage::Kind::attempt:
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case ThrowdownMessage::Kind::turn_end: return m.value > 0;
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case ThrowdownMessage::Kind::close:
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case ThrowdownMessage::Kind::join:
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case ThrowdownMessage::Kind::leave:
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case ThrowdownMessage::Kind::score: return true;
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case ThrowdownMessage::Kind::challenge_start:
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return valid_series(m.series) && valid_challenge_id(m.challenge) && m.order.size() >= 2 &&
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m.order.size() <= max_challenge_players && m.order.front() == m.leader &&
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std::all_of(m.order.begin(), m.order.end(), individual);
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case ThrowdownMessage::Kind::challenge_attempt:
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return !m.criteria.empty() && m.criteria.size() % challenge_criteria_size == 0 &&
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m.criteria.size() <= max_challenge_criteria * challenge_criteria_size && m.indexes.size() % 4 == 0 &&
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m.indexes.size() <= max_challenge_criteria * 4;
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case ThrowdownMessage::Kind::challenge_optout:
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case ThrowdownMessage::Kind::challenge_slam:
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case ThrowdownMessage::Kind::challenge_leave: return true;
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case ThrowdownMessage::Kind::beacon:
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return m.leader && std::all_of(m.location.begin(), m.location.end(),
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[](float v) { return std::isfinite(v) && std::abs(v) < 1e6f; });
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case ThrowdownMessage::Kind::mode:
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return valid_mode_key(m.challenge) && (m.series.empty() || valid_series(m.series)) && m.value >= 1 && m.value <= 10;
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case ThrowdownMessage::Kind::flag:
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return valid_mode_key(m.challenge) && decode_flag_body(m.placement).has_value();
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}
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return false;
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}
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std::vector<std::uint8_t> encode_throwdown(const ThrowdownMessage &m) {
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if (!valid_throwdown(m)) throw std::invalid_argument("Invalid throwdown message");
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Writer w;
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w.integer(static_cast<std::uint8_t>(m.kind), 1);
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w.integer(m.leader, 8);
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w.integer(m.id, 4);
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switch (m.kind) {
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case ThrowdownMessage::Kind::offer:
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w.integer(m.series.size(), 1);
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w.bytes.insert(w.bytes.end(), m.series.begin(), m.series.end());
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w.blob(m.placement, 2);
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w.blob(m.settings, 2);
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[[fallthrough]];
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case ThrowdownMessage::Kind::start:
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case ThrowdownMessage::Kind::invite:
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w.integer(m.order.size(), 1);
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for (const auto id : m.order) w.integer(id, 8);
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break;
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case ThrowdownMessage::Kind::score:
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case ThrowdownMessage::Kind::turn_end: w.integer(static_cast<std::uint32_t>(m.value), 4); break;
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case ThrowdownMessage::Kind::row:
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w.integer(m.board, 1);
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w.integer(m.add ? 1 : 0, 1);
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w.integer(static_cast<std::uint32_t>(m.value), 4);
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break;
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case ThrowdownMessage::Kind::attempt:
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w.integer(static_cast<std::uint32_t>(m.value), 4);
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w.integer(m.add ? 1 : 0, 1);
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w.bytes.insert(w.bytes.end(), m.trick.begin(), m.trick.end());
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break;
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case ThrowdownMessage::Kind::challenge_start:
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w.integer(m.series.size(), 1);
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w.bytes.insert(w.bytes.end(), m.series.begin(), m.series.end());
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w.integer(m.challenge.size(), 1);
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w.bytes.insert(w.bytes.end(), m.challenge.begin(), m.challenge.end());
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w.integer(m.add ? 1 : 0, 1);
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w.integer(m.order.size(), 1);
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for (const auto id : m.order) w.integer(id, 8);
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break;
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case ThrowdownMessage::Kind::challenge_attempt:
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w.blob(m.criteria, 2);
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w.blob(m.indexes, 2);
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break;
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case ThrowdownMessage::Kind::challenge_slam: w.integer(static_cast<std::uint32_t>(m.value), 4); break;
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case ThrowdownMessage::Kind::beacon:
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w.integer(m.add ? 1 : 0, 1);
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if (m.add)
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for (const auto v : m.location) w.integer(std::bit_cast<std::uint32_t>(v), 4);
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break;
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case ThrowdownMessage::Kind::mode:
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w.integer(m.challenge.size(), 1);
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w.bytes.insert(w.bytes.end(), m.challenge.begin(), m.challenge.end());
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w.integer(m.series.size(), 1);
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w.bytes.insert(w.bytes.end(), m.series.begin(), m.series.end());
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w.integer(static_cast<std::uint32_t>(m.value), 1);
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break;
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case ThrowdownMessage::Kind::flag:
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w.integer(m.challenge.size(), 1);
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w.bytes.insert(w.bytes.end(), m.challenge.begin(), m.challenge.end());
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w.blob(m.placement, 2);
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break;
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default: break;
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}
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return std::move(w.bytes);
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}
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std::optional<ThrowdownMessage> decode_throwdown(std::span<const std::uint8_t> bytes) noexcept {
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try {
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Reader r{bytes};
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ThrowdownMessage m;
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const auto kind = r.integer(1);
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if (kind < 1 || kind > 18) return {};
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m.kind = static_cast<ThrowdownMessage::Kind>(kind);
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m.leader = r.integer(8);
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m.id = static_cast<std::uint32_t>(r.integer(4));
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switch (m.kind) {
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case ThrowdownMessage::Kind::offer: {
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const auto length = r.integer(1);
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if (!r.ok || length > max_throwdown_series || length > bytes.size() - r.at) return {};
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m.series.assign(reinterpret_cast<const char *>(bytes.data() + r.at), static_cast<std::size_t>(length));
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r.at += static_cast<std::size_t>(length);
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m.placement = r.blob(2, max_throwdown_params);
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m.settings = r.blob(2, max_throwdown_params);
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[[fallthrough]];
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}
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case ThrowdownMessage::Kind::start:
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case ThrowdownMessage::Kind::invite: {
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const auto count = r.integer(1);
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if (!r.ok || count > max_throwdown_order) return {};
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for (std::uint64_t i = 0; i < count; ++i) m.order.push_back(r.integer(8));
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break;
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}
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case ThrowdownMessage::Kind::score:
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case ThrowdownMessage::Kind::turn_end: m.value = static_cast<std::int32_t>(r.integer(4)); break;
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case ThrowdownMessage::Kind::row: {
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m.board = static_cast<std::uint8_t>(r.integer(1));
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const auto add = r.integer(1);
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if (add > 1) return {};
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m.add = add != 0;
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m.value = static_cast<std::int32_t>(r.integer(4));
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break;
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}
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case ThrowdownMessage::Kind::attempt: {
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m.value = static_cast<std::int32_t>(r.integer(4));
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const auto landed = r.integer(1);
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if (landed > 1) return {};
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m.add = landed != 0;
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for (auto &byte : m.trick) byte = static_cast<std::uint8_t>(r.integer(1));
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break;
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}
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case ThrowdownMessage::Kind::challenge_start: {
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const auto text = [&](std::size_t limit, std::string &out) {
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const auto length = r.integer(1);
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if (!r.ok || length > limit || length > bytes.size() - r.at) return false;
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out.assign(reinterpret_cast<const char *>(bytes.data() + r.at), static_cast<std::size_t>(length));
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r.at += static_cast<std::size_t>(length);
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return true;
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};
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if (!text(max_throwdown_series, m.series) || !text(max_challenge_id, m.challenge)) return {};
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const auto contest = r.integer(1);
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if (contest > 1) return {};
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m.add = contest != 0;
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const auto count = r.integer(1);
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if (!r.ok || count > max_challenge_players) return {};
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for (std::uint64_t i = 0; i < count; ++i) m.order.push_back(r.integer(8));
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break;
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}
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case ThrowdownMessage::Kind::challenge_attempt:
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m.criteria = r.blob(2, max_challenge_criteria * challenge_criteria_size);
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m.indexes = r.blob(2, max_challenge_criteria * 4);
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break;
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case ThrowdownMessage::Kind::challenge_slam: m.value = static_cast<std::int32_t>(r.integer(4)); break;
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case ThrowdownMessage::Kind::beacon: {
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const auto placed = r.integer(1);
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if (placed > 1) return {};
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m.add = placed != 0;
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if (m.add)
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for (auto &v : m.location) v = std::bit_cast<float>(static_cast<std::uint32_t>(r.integer(4)));
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break;
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}
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case ThrowdownMessage::Kind::mode: {
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const auto text = [&](std::size_t limit, std::string &out) {
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const auto length = r.integer(1);
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if (!r.ok || length > limit || length > bytes.size() - r.at) return false;
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out.assign(reinterpret_cast<const char *>(bytes.data() + r.at), static_cast<std::size_t>(length));
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r.at += static_cast<std::size_t>(length);
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return true;
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};
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if (!text(max_challenge_id, m.challenge) || !text(max_throwdown_series, m.series)) return {};
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m.value = static_cast<std::int32_t>(r.integer(1));
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break;
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}
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case ThrowdownMessage::Kind::flag: {
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const auto length = r.integer(1);
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if (!r.ok || length > max_challenge_id || length > bytes.size() - r.at) return {};
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m.challenge.assign(reinterpret_cast<const char *>(bytes.data() + r.at), static_cast<std::size_t>(length));
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r.at += static_cast<std::size_t>(length);
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m.placement = r.blob(2, max_throwdown_params);
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break;
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}
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default: break;
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}
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if (!r.ok || r.at != bytes.size() || !valid_throwdown(m)) return {};
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return m;
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} catch (...) { return {}; }
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}
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} // namespace dingosdk::multiplayer
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