423 lines
11 KiB
C++
423 lines
11 KiB
C++
#include <STDInclude.hpp>
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#include "Bots.hpp"
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#include "GSC/Script.hpp"
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// From Quake-III
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#define ANGLE2SHORT(x) ((int)((x) * (USHRT_MAX + 1) / 360.0f) & USHRT_MAX)
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#define SHORT2ANGLE(x) ((x)* (360.0f / (USHRT_MAX + 1)))
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namespace Components
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{
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std::vector<Bots::botData> Bots::BotNames;
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Dvar::Var Bots::SVRandomBotNames;
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struct BotMovementInfo
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{
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std::int32_t buttons; // Actions
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std::int8_t forward;
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std::int8_t right;
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std::uint16_t weapon;
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bool active;
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};
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static BotMovementInfo g_botai[18];
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struct BotAction
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{
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std::string action;
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std::int32_t key;
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};
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static const BotAction BotActions[] =
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{
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{ "gostand", Game::CMD_BUTTON_UP },
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{ "gocrouch", Game::CMD_BUTTON_CROUCH },
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{ "goprone", Game::CMD_BUTTON_PRONE },
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{ "fire", Game::CMD_BUTTON_ATTACK },
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{ "melee", Game::CMD_BUTTON_MELEE },
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{ "frag", Game::CMD_BUTTON_FRAG },
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{ "smoke", Game::CMD_BUTTON_OFFHAND_SECONDARY },
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{ "reload", Game::CMD_BUTTON_RELOAD },
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{ "sprint", Game::CMD_BUTTON_SPRINT },
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{ "leanleft", Game::CMD_BUTTON_LEAN_LEFT },
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{ "leanright", Game::CMD_BUTTON_LEAN_RIGHT },
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{ "ads", Game::CMD_BUTTON_ADS },
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{ "holdbreath", Game::CMD_BUTTON_BREATH },
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{ "usereload", Game::CMD_BUTTON_USE_RELOAD },
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{ "activate", Game::CMD_BUTTON_ACTIVATE },
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};
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int Bots::BuildConnectString(char* buffer, const char* connectString, int num, int, int protocol, int checksum, int statVer, int statStuff, int port)
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{
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static size_t botId = 0; // Loop over the BotNames vector
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static bool loadedNames = false; // Load file only once
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const char* botName;
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const char* clanName;
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if (BotNames.empty() && !loadedNames)
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{
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FileSystem::File bots("bots.txt");
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loadedNames = true;
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if (bots.exists())
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{
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auto data = Utils::String::Split(bots.getBuffer(), '\n');
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if (SVRandomBotNames.get<bool>())
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{
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std::random_device rd;
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std::mt19937 gen(rd());
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std::ranges::shuffle(data, gen);
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}
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for (auto& entry : data)
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{
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// Take into account for CR line endings
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Utils::String::Replace(entry, "\r", "");
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// Remove whitespace
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Utils::String::Trim(entry);
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if (!entry.empty())
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{
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std::string clanAbbrev;
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// Check if there is a clan tag
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if (const auto pos = entry.find(','); pos != std::string::npos)
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{
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// Only start copying over from non-null characters (otherwise it can be "<=")
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if ((pos + 1) < entry.size())
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{
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clanAbbrev = entry.substr(pos + 1);
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}
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entry = entry.substr(0, pos);
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}
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BotNames.emplace_back(std::make_pair(entry, clanAbbrev));
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}
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}
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}
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}
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if (!BotNames.empty())
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{
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botId %= BotNames.size();
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const auto index = botId++;
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botName = BotNames[index].first.data();
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clanName = BotNames[index].second.data();
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}
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else
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{
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botName = Utils::String::VA("bot%d", ++botId);
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clanName = "BOT";
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}
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return _snprintf_s(buffer, 0x400, _TRUNCATE, connectString, num, botName, clanName, protocol, checksum, statVer, statStuff, port);
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}
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void Bots::Spawn(unsigned int count)
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{
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for (std::size_t i = 0; i < count; ++i)
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{
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Scheduler::Once([]
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{
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auto* ent = Game::SV_AddTestClient();
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if (ent == nullptr)
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return;
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Scheduler::Once([ent]
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{
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Game::Scr_AddString("autoassign");
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Game::Scr_AddString("team_marinesopfor");
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Game::Scr_Notify(ent, static_cast<std::uint16_t>(Game::SL_GetString("menuresponse", 0)), 2);
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Scheduler::Once([ent]
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{
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Game::Scr_AddString(Utils::String::VA("class%u", Utils::Cryptography::Rand::GenerateInt() % 5u));
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Game::Scr_AddString("changeclass");
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Game::Scr_Notify(ent, static_cast<std::uint16_t>(Game::SL_GetString("menuresponse", 0)), 2);
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}, Scheduler::Pipeline::SERVER, 1s);
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}, Scheduler::Pipeline::SERVER, 1s);
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}, Scheduler::Pipeline::SERVER, 500ms * (i + 1));
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}
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}
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void Bots::GScr_isTestClient(const Game::scr_entref_t entref)
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{
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const auto* ent = Game::GetEntity(entref);
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if (!ent->client)
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{
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Game::Scr_Error("isTestClient: entity must be a player entity");
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return;
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}
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Game::Scr_AddBool(Game::SV_IsTestClient(ent->s.number) != 0);
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}
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void Bots::AddMethods()
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{
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Script::AddMethMultiple(GScr_isTestClient, false, {"IsTestClient", "IsBot"}); // Usage: self IsTestClient();
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Script::AddMethod("BotStop", [](Game::scr_entref_t entref) // Usage: <bot> BotStop();
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{
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const auto* ent = Game::GetPlayerEntity(entref);
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if (Game::SV_IsTestClient(ent->s.number) == 0)
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{
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Game::Scr_Error("^1BotStop: Can only call on a bot!\n");
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return;
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}
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ZeroMemory(&g_botai[entref.entnum], sizeof(BotMovementInfo));
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g_botai[entref.entnum].weapon = 1;
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g_botai[entref.entnum].active = true;
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});
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Script::AddMethod("BotWeapon", [](Game::scr_entref_t entref) // Usage: <bot> BotWeapon(<str>);
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{
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const auto* ent = Game::GetPlayerEntity(entref);
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if (Game::SV_IsTestClient(ent->s.number) == 0)
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{
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Game::Scr_Error("^1BotWeapon: Can only call on a bot!\n");
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return;
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}
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const auto* weapon = Game::Scr_GetString(0);
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if (weapon == nullptr || weapon[0] == '\0')
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{
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g_botai[entref.entnum].weapon = 1;
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return;
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}
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const auto weapId = Game::G_GetWeaponIndexForName(weapon);
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g_botai[entref.entnum].weapon = static_cast<uint16_t>(weapId);
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g_botai[entref.entnum].active = true;
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});
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Script::AddMethod("BotAction", [](Game::scr_entref_t entref) // Usage: <bot> BotAction(<str action>);
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{
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const auto* ent = Game::GetPlayerEntity(entref);
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if (Game::SV_IsTestClient(ent->s.number) == 0)
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{
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Game::Scr_Error("^1BotAction: Can only call on a bot!\n");
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return;
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}
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const auto* action = Game::Scr_GetString(0);
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if (action == nullptr)
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{
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Game::Scr_ParamError(0, "^1BotAction: Illegal parameter!\n");
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return;
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}
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if (action[0] != '+' && action[0] != '-')
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{
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Game::Scr_ParamError(0, "^1BotAction: Sign for action must be '+' or '-'.\n");
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return;
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}
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for (std::size_t i = 0; i < std::extent_v<decltype(BotActions)>; ++i)
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{
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if (Utils::String::ToLower(&action[1]) != BotActions[i].action)
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continue;
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if (action[0] == '+')
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g_botai[entref.entnum].buttons |= BotActions[i].key;
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else
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g_botai[entref.entnum].buttons &= ~BotActions[i].key;
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g_botai[entref.entnum].active = true;
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return;
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}
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Game::Scr_ParamError(0, "^1BotAction: Unknown action.\n");
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});
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Script::AddMethod("BotMovement", [](Game::scr_entref_t entref) // Usage: <bot> BotMovement(<int>, <int>);
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{
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const auto* ent = Game::GetPlayerEntity(entref);
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if (Game::SV_IsTestClient(ent->s.number) == 0)
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{
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Game::Scr_Error("^1BotMovement: Can only call on a bot!\n");
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return;
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}
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const auto forwardInt = std::clamp<int>(Game::Scr_GetInt(0), std::numeric_limits<char>::min(), std::numeric_limits<char>::max());
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const auto rightInt = std::clamp<int>(Game::Scr_GetInt(1), std::numeric_limits<char>::min(), std::numeric_limits<char>::max());
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g_botai[entref.entnum].forward = static_cast<int8_t>(forwardInt);
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g_botai[entref.entnum].right = static_cast<int8_t>(rightInt);
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g_botai[entref.entnum].active = true;
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});
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}
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void Bots::BotAiAction(Game::client_t* cl)
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{
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if (cl->gentity == nullptr)
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return;
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const auto entnum = cl->gentity->s.number;
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// Keep test client functionality
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if (!g_botai[entnum].active)
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{
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Game::SV_BotUserMove(cl);
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return;
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}
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Game::usercmd_s userCmd;
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ZeroMemory(&userCmd, sizeof(Game::usercmd_s));
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userCmd.serverTime = *Game::svs_time;
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userCmd.buttons = g_botai[entnum].buttons;
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userCmd.forwardmove = g_botai[entnum].forward;
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userCmd.rightmove = g_botai[entnum].right;
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userCmd.weapon = g_botai[entnum].weapon;
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userCmd.angles[0] = ANGLE2SHORT((cl->gentity->client->ps.viewangles[0] - cl->gentity->client->ps.delta_angles[0]));
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userCmd.angles[1] = ANGLE2SHORT((cl->gentity->client->ps.viewangles[1] - cl->gentity->client->ps.delta_angles[1]));
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userCmd.angles[2] = ANGLE2SHORT((cl->gentity->client->ps.viewangles[2] - cl->gentity->client->ps.delta_angles[2]));
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Game::SV_ClientThink(cl, &userCmd);
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}
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__declspec(naked) void Bots::SV_BotUserMove_Hk()
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{
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__asm
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{
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pushad
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push edi
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call BotAiAction
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add esp, 4
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popad
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ret
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}
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}
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void Bots::G_SelectWeaponIndex(int clientNum, int iWeaponIndex)
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{
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if (g_botai[clientNum].active)
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{
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g_botai[clientNum].weapon = static_cast<uint16_t>(iWeaponIndex);
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}
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}
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__declspec(naked) void Bots::G_SelectWeaponIndex_Hk()
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{
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__asm
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{
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pushad
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push [esp + 0x20 + 0x8]
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push [esp + 0x20 + 0x8]
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call G_SelectWeaponIndex
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add esp, 0x8
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popad
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// Code skipped by hook
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mov eax, [esp + 0x8]
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push eax
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push 0x441B85
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retn
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}
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}
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Bots::Bots()
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{
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AssertOffset(Game::client_t, bIsTestClient, 0x41AF0);
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AssertOffset(Game::client_t, ping, 0x212C8);
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// Replace connect string
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Utils::Hook::Set<const char*>(0x48ADA6, "connect bot%d \"\\cg_predictItems\\1\\cl_anonymous\\0\\color\\4\\head\\default\\model\\multi\\snaps\\20\\rate\\5000\\name\\%s\\clanAbbrev\\%s\\protocol\\%d\\checksum\\%d\\statver\\%d %u\\qport\\%d\"");
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// Intercept sprintf for the connect string
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Utils::Hook(0x48ADAB, BuildConnectString, HOOK_CALL).install()->quick();
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Utils::Hook(0x627021, SV_BotUserMove_Hk, HOOK_CALL).install()->quick();
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Utils::Hook(0x627241, SV_BotUserMove_Hk, HOOK_CALL).install()->quick();
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Utils::Hook(0x441B80, G_SelectWeaponIndex_Hk, HOOK_JUMP).install()->quick();
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SVRandomBotNames = Dvar::Register<bool>("sv_randomBotNames", false, Game::DVAR_NONE, "Randomize the bots' names");
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// Reset BotMovementInfo.active when client is dropped
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Events::OnClientDisconnect([](const int clientNum)
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{
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g_botai[clientNum].active = false;
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});
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// Zero the bot command array
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for (std::size_t i = 0; i < std::extent_v<decltype(g_botai)>; ++i)
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{
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ZeroMemory(&g_botai[i], sizeof(BotMovementInfo));
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g_botai[i].weapon = 1; // Prevent the bots from defaulting to the 'none' weapon
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}
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Command::Add("spawnBot", [](Command::Params* params)
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{
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auto count = 1u;
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if (params->size() > 1)
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{
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if (params->get(1) == "all"s)
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{
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count = *Game::svs_clientCount;
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}
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else
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{
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char* end;
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const auto* input = params->get(1);
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count = std::strtoul(input, &end, 10);
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if (input == end)
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{
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Logger::Warning(Game::CON_CHANNEL_DONT_FILTER, "{} is not a valid input\nUsage: {} optional <number of bots> or optional <\"all\">\n",
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input, params->get(0));
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return;
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}
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}
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}
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count = std::min(static_cast<unsigned int>(*Game::svs_clientCount), count);
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// Check if ingame and host
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if (!Game::SV_Loaded())
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{
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Toast::Show("cardicon_headshot", "^1Error", "You need to be host to spawn bots!", 3000);
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Logger::Print("You need to be host to spawn bots!\n");
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return;
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}
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Toast::Show("cardicon_headshot", "^2Success", Utils::String::VA("Spawning %d %s...", count, (count == 1 ? "bot" : "bots")), 3000);
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Logger::Debug("Spawning {} {}", count, (count == 1 ? "bot" : "bots"));
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Spawn(count);
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});
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AddMethods();
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// In case a loaded mod didn't call "BotStop" before the VM shutdown
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Events::OnVMShutdown([]
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{
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for (std::size_t i = 0; i < std::extent_v<decltype(g_botai)>; ++i)
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{
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g_botai[i].active = false;
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}
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});
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}
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}
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