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#pragma once
#include <array>
#include <cstdint>
#include <cstdio>
#include <cstring>
#include <string>
#include <unistd.h>
#include <vector>
#include "util/io.hpp"
#include "util/bitset.hpp"
namespace net {
namespace packet {
using packet_flag = struct { };
template <class T>
concept packet = requires(T x) { x.packet_id; };
template <class T>
concept compressed_packet = packet<T> && requires(T x) { x.compressed; };
template <class T>
concept netmodule = requires(T x) { x.module_id; };
struct nstring {
enum ns_type : uint8_t {
Literal,
Formattable,
LocalizationKey,
} type;
std::string text;
std::vector<std::string> substitutions;
template <class T>
ssize_t read(io::serialized_io<T>& io) {
uint8_t t;
auto offset = io.read(t);
type = (ns_type(t));
offset += io.read(text);
uint8_t subs_len;
offset += io.read(subs_len);
if (subs_len > 0) {
substitutions.resize(subs_len);
io.read(substitutions);
}
return offset;
}
template <class T>
ssize_t write(io::serialized_io<T>& io) {
auto offset = io.write(uint8_t(type));
offset += io.write(text);
offset += io.write(uint8_t(substitutions.size()));
offset += io.write(substitutions);
return offset;
}
};
struct rgb {
uint8_t r;
uint8_t g;
uint8_t b;
};
template<class T>
struct vec2 {
T x;
T y;
};
template<class T>
struct plist {
std::vector<T> v;
template <class K>
ssize_t read(io::serialized_io<K>& io) {
uint8_t len;
auto offset = io.read(len);
v.resize(len);
offset += io.read(v);
return offset;
}
template <class K>
ssize_t write(io::serialized_io<K>& io) {
auto offset = io.write(uint8_t(v.size()));
offset += io.write(v);
return offset;
}
};
// NetMessages
struct connect {
static constexpr uint8_t packet_id = 1;
std::string version;
};
struct disconnect {
static constexpr uint8_t packet_id = 2;
nstring reason;
};
struct accept {
static constexpr uint8_t packet_id = 3;
uint8_t slot;
uint8_t server_flags = 0;
};
struct player_info {
static constexpr uint8_t packet_id = 4;
uint8_t slot;
uint8_t skin_variant;
uint8_t voice_variant;
float voice_offset;
uint8_t hair;
std::string name;
uint8_t hair_dye;
bitset<16> hidden_accessories; // FIXME: this is rounded number of flags. Terraria may use less than 16
bitset<8> hide_misc; // same here
rgb hair_color;
rgb skin_color;
rgb eye_color;
rgb shirt_color;
rgb undershirt_color;
rgb pants_color;
rgb shoe_color;
bitset<4> player_difficulty;
bitset<5> permanent_buffs;
bitset<7> permanent_buffs_shimmer;
};
struct player_inventory_slot {
static constexpr uint8_t packet_id = 5;
enum class slot_flags : int {
Favourite = 0,
BlockTransfer = 1,
};
uint8_t slot;
uint16_t item_slot_id;
uint16_t stack;
uint8_t prefix;
uint16_t type;
bitset<2> flags;
};
struct request_world_info {
static constexpr uint8_t packet_id = 6;
};
struct world_info {
static constexpr uint8_t packet_id = 7;
int32_t time;
bitset<3> time_flags; // day? blood moon? eclipse?
uint8_t moon_phase;
vec2<uint16_t> tiles_limit;
vec2<uint16_t> spawn_tile;
uint16_t surface_level;
uint16_t rock_level;
int32_t worldid;
std::string worldname;
uint8_t gamemode;
std::array<uint8_t, 16> uuid;
uint64_t worldgen_version;
uint8_t moon_type;
std::array<uint8_t, 13> backgrounds;
std::array<uint8_t, 3> bg_styles;
float wind_speed_target;
uint8_t num_clouds;
std::array<int32_t, 3> trees;
std::array<uint8_t, 4> trees_styles;
std::array<int32_t, 3> cave_bg;
std::array<uint8_t, 4> cave_bg_styles;
std::array<uint8_t, 13> tree_tops;
float max_raining;
bitset<81> flags; // TODO: document them
uint8_t sundial_cooldown;
uint8_t moondial_cooldown;
std::array<uint16_t, 7> world_ores;
int8_t invasion_type;
uint64_t lobby_id = 0;
float sandstorm_severity;
plist<vec2<uint16_t>> extra_spawn_points;
};
struct request_spawn {
static constexpr uint8_t packet_id = 8;
vec2<int32_t> tile;
uint8_t team;
};
struct set_loading_message {
static constexpr uint8_t packet_id = 9;
int32_t sections;
nstring message;
uint8_t flags = 0;
};
inline nstring operator""_ns(const char* str, std::size_t)
{
return nstring{nstring::Literal, str};
}
}
}
using net::packet::operator""_ns;
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