Brandling Safari: LAN safari-zone creature catching on the HD-2D engine
- Authoritative 30 Hz server (ENet, SQLite): accounts, characters, wild AI, tall grass / water / wandering spawns, fishing, captures, follower chains, clock + weather, LAN beacon - Client: title / join / character creator / play screens, prediction + reconciliation, interpolated players and parties, HD-2D UI (dialogue with Professor Henry, HUD, collection) - Shared deterministic zone generator, movement, protocol, roster, appearance - Paper-doll character art pipeline (PixelLab base walk + per-item animation edits) - Brandling roster from the company list (logo colors, jev types), Blender safari props - Headless test bot
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Gabe
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server/Game.h
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server/Game.h
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#pragma once
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// Authoritative game simulation: sessions/accounts, player movement, wild
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// creatures, fishing, catching, followers, Professor Henry, chat, world clock.
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#include "Appearance.h"
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#include "Database.h"
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#include "Movement.h"
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#include "Net.h"
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#include "Protocol.h"
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#include "Rng.h"
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#include "Roster.h"
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#include "Spawns.h"
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#include "Zone.h"
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#include <cstdint>
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#include <deque>
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#include <map>
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#include <memory>
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#include <set>
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#include <string>
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#include <vector>
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namespace bs {
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struct GameConfig {
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std::string serverName = "Brandling Safari";
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uint32_t seed = 1;
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std::string zoneId = "meadow";
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float dayMinutes = 30.0f;
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float hour = -1.0f; // < 0: resume the saved clock (default 9:00)
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int weather = -1; // < 0: resume the saved weather
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};
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// Professor Henry always has this entity id; dynamic entities start above it.
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constexpr uint32_t kHenryEntityId = 1;
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enum class LineState { None, Waiting, Biting };
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struct Player {
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uint32_t peer = 0;
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uint32_t entity = 0; // 0 until the character is spawned
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bool helloDone = false;
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bool hasCharacter = false;
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bool spawned = false;
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PlayerRow row; // persistent fields (id, token, name, look, capsules, intro)
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MoveState move;
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uint32_t lastSeq = 0;
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float inputBudget = 2.0f;
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int idleTicks = 0; // ticks without an applied input (stops the walk anim)
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std::vector<OwnedCreature> creatures;
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std::set<uint16_t> seen, caught;
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float throwTimer = 0.0f;
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LineState line = LineState::None;
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glm::vec2 bobber{0.0f}, castPos{0.0f};
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float lineTimer = 0.0f, fishCooldown = 0.0f;
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float grassDist = 0.0f;
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float rustleCooldown = 0.0f; // misses shake the grass at most about once a second
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std::deque<glm::vec2> trail; // newest first
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float introTimer = -1.0f; // > 0: henry_intro dialogue pending
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bool introOffered = false; // henry_intro was sent and not answered yet
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double lastChat = -10.0;
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bool posDirty = false;
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};
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enum class CMode { Wander, Emerge, Alert, Capturing, Flee, Hooked, Swim, Follow };
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enum class COrigin { Wanderer, Grass, Swimmer, Fished, Console, Caught };
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struct Creature {
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uint32_t id = 0;
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uint16_t species = 0;
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EntityKind kind = EntityKind::Wild;
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COrigin origin = COrigin::Wanderer;
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CMode mode = CMode::Wander;
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Anim anim = Anim::Idle;
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glm::vec2 pos{0.0f};
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float y = 0.0f;
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float yaw = 0.0f;
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uint32_t owner = 0; // follower owner / player hooking, capturing or scaring it
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uint8_t order = 0;
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uint32_t uid = 0; // follower: owned creature uid
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bool dead = false; // removed at the end of the tick
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uint32_t emergedFor = 0; // grass spawn: player entity it popped up for (per-player cap)
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float timer = 0.0f; // time left in the current mode / pause
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bool walking = false;
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glm::vec2 target{0.0f};
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float lifetime = 120.0f; // despawn once this runs out and nobody is within 12 units
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bool hookBonus = false; // Alert after being fished out
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int failedThrows = 0;
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std::set<uint32_t> seenBy; // player entities that already had it registered as seen
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// capture in flight
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float captureTimer = 0.0f;
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bool captureSuccess = false;
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int wobbles = 0;
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CMode resumeMode = CMode::Wander;
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// hook arc
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glm::vec2 arcFrom{0.0f}, arcTo{0.0f};
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float arcFromY = 0.0f;
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};
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class Game {
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public:
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Game(net::Host& host, Database& db, Zone& zone, const Roster& roster, const CharacterManifest& manifest,
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GameConfig cfg);
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void onConnect(uint32_t peer);
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void onDisconnect(uint32_t peer);
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void onReceive(uint32_t peer, const std::vector<uint8_t>& data);
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void tick();
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void saveAll();
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// Console command; returns false for "quit".
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bool console(const std::string& line);
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int playerCount() const;
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const std::string& serverName() const { return cfg_.serverName; }
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private:
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// --- sessions
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Player* byPeer(uint32_t peer);
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Player* byEntity(uint32_t entity);
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void handleHello(Player& p, Reader& r);
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void handleCreate(Player& p, Reader& r);
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void handleInput(Player& p, Reader& r);
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void handleAction(Player& p, Reader& r);
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void handleChat(Player& p, Reader& r);
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void handleDialogueDone(Player& p, Reader& r);
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void spawnPlayer(Player& p);
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void despawnPlayer(Player& p); // save + PlayerLeft + remove followers
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void reject(uint32_t peer, const std::string& reason);
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// --- messaging
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void send(const Player& p, const Writer& w, bool reliable = true);
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void broadcast(const Writer& w, bool reliable = true);
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void sendProfile(Player& p);
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void sendEvent(const GameEvent& e);
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void sendToast(Player& p, const std::string& text);
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void sendDialogue(Player& p, const std::string& id);
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PlayerInfoMsg playerInfo(const Player& p) const;
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void sendSnapshots();
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// --- persistence
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void savePlayer(Player& p);
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void saveWorld();
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// --- players
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void applyInput(Player& p, const InputCmd& c);
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void updatePlayer(Player& p, float dt);
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void cancelLine(Player& p);
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void noteSeen(Player& p, uint16_t species);
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glm::vec3 pos3(glm::vec2 p) const { return {p.x, zone_.groundHeight(p), p.y}; }
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Anim playerAnim(const Player& p) const;
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// --- creatures
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Creature& addCreature(uint16_t species, glm::vec2 pos, COrigin origin);
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void removeCreature(uint32_t id);
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void announceAppeared(const Creature& c);
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void updateCreatures(float dt);
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void updateWild(Creature& c, float dt);
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void updateFollowers(Player& p, float dt);
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void wander(Creature& c, float dt, float speed);
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bool pickWanderTarget(Creature& c);
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void faceNearestPlayer(Creature& c);
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float nearestPlayerDist(glm::vec2 p, Player** who = nullptr);
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int emergedCount(const Player& p) const;
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void maintainPopulation(float dt);
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bool spawnWanderer();
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bool spawnSwimmer(bool announce);
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void grassEncounters(Player& p);
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void resolveCapture(Creature& c);
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void syncFollowers(Player& p);
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Creature* spawnForConsole(uint16_t species);
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// --- actions
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void actionThrow(Player& p, uint32_t target);
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void actionCast(Player& p, glm::vec2 dir);
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void actionReel(Player& p);
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void actionInteract(Player& p, uint32_t target);
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void actionToggleParty(Player& p, uint32_t uid);
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void finishIntro(Player& p);
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bool landingSpot(glm::vec2 bobber, glm::vec2 player, glm::vec2& out) const;
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// --- world
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void updateWorld(float dt);
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void updateHenry(float dt);
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void setWeather(Weather w);
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net::Host& host_;
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Database& db_;
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Zone& zone_;
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const Roster& roster_;
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const CharacterManifest& manifest_;
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GameConfig cfg_;
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Rng rng_;
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SpawnTables tables_;
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std::map<uint32_t, std::unique_ptr<Player>> players_; // by peer
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std::map<uint32_t, Creature> creatures_; // wild + followers by entity id
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uint32_t nextEntity_ = kHenryEntityId + 1;
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uint32_t tick_ = 0;
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double time_ = 0.0; // seconds since start
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float hour_ = 9.0f;
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Weather weather_ = Weather::Clear;
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float weatherTimer_ = 300.0f;
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float weatherBlend_ = 1.0f;
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float saveTimer_ = 10.0f;
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float henryYaw_ = 0.0f;
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float wanderSpawnTimer_ = 0.0f;
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float swimmerTimer_ = 10.0f; // next surface/dive
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float swimmerRespawn_ = -1.0f; // > 0: a dived swimmer resurfaces elsewhere
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};
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} // namespace bs
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