From: Daniel Karbach <daniel.karbach@localhorst.tv>
Date: Mon, 23 Nov 2015 13:47:30 +0000 (+0100)
Subject: make command output visible to player(s)
X-Git-Url: https://git.localhorst.tv/?a=commitdiff_plain;h=fa3c4a14546d73ddc2671cd5cc58208839bf7173;p=blank.git

make command output visible to player(s)
---

diff --git a/doc/todo b/doc/todo
index bbf432c..9df0ec4 100644
--- a/doc/todo
+++ b/doc/todo
@@ -20,7 +20,6 @@ font rendering
 command line
 
 	more commands pls
-	and show me their output
 
 persistence
 
diff --git a/src/server/ClientConnection.hpp b/src/server/ClientConnection.hpp
index 57a34e4..3ab0453 100644
--- a/src/server/ClientConnection.hpp
+++ b/src/server/ClientConnection.hpp
@@ -2,6 +2,7 @@
 #define BLANK_SERVER_CLIENTCONNECTION_HPP_
 
 #include "ChunkTransmitter.hpp"
+#include "NetworkCLIFeedback.hpp"
 #include "Server.hpp"
 #include "../app/IntervalTimer.hpp"
 #include "../ui/DirectInput.hpp"
@@ -10,6 +11,7 @@
 #include "../world/EntityState.hpp"
 #include "../world/Player.hpp"
 
+#include <cstdint>
 #include <deque>
 #include <list>
 #include <memory>
@@ -39,6 +41,8 @@ public:
 	Connection &GetConnection() noexcept { return conn; }
 	bool Disconnected() const noexcept { return conn.Closed(); }
 
+	Server &GetServer() noexcept { return server; }
+
 	/// prepare a packet of given type
 	template<class Type>
 	Type Prepare() const noexcept {
@@ -63,6 +67,8 @@ public:
 
 	bool ChunkInRange(const glm::ivec3 &) const noexcept;
 
+	std::uint16_t SendMessage(std::uint8_t type, std::uint32_t from, const std::string &msg);
+
 private:
 	struct SpawnStatus {
 		// the entity in question
@@ -105,6 +111,7 @@ private:
 	Server &server;
 	Connection conn;
 	std::unique_ptr<DirectInput> input;
+	std::unique_ptr<NetworkCLIFeedback> cli_ctx;
 	const Model *player_model;
 	std::list<SpawnStatus> spawns;
 	unsigned int confirm_wait;
diff --git a/src/server/NetworkCLIFeedback.hpp b/src/server/NetworkCLIFeedback.hpp
new file mode 100644
index 0000000..25a8781
--- /dev/null
+++ b/src/server/NetworkCLIFeedback.hpp
@@ -0,0 +1,31 @@
+#ifndef BLANK_SERVER_NETWORKCLIFEEDBACK_HPP_
+#define BLANK_SERVER_NETWORKCLIFEEDBACK_HPP_
+
+#include "../shared/CLIContext.hpp"
+
+
+namespace blank {
+
+namespace server {
+
+class ClientConnection;
+
+class NetworkCLIFeedback
+: public CLIContext {
+
+public:
+	NetworkCLIFeedback(Player &, ClientConnection &);
+
+	void Error(const std::string &) override;
+	void Message(const std::string &) override;
+	void Broadcast(const std::string &) override;
+
+private:
+	ClientConnection &conn;
+
+};
+
+}
+}
+
+#endif
diff --git a/src/server/Server.hpp b/src/server/Server.hpp
index 40905c8..9b89ab1 100644
--- a/src/server/Server.hpp
+++ b/src/server/Server.hpp
@@ -14,6 +14,7 @@
 namespace blank {
 
 class ChunkIndex;
+class CLIContext;
 class Model;
 class Player;
 class WorldSave;
@@ -52,7 +53,7 @@ public:
 	void SetBlock(Chunk &, int, const Block &) override;
 
 	/// for use by client connections when they receive a line from the player
-	void DispatchMessage(Player &, const std::string &);
+	void DispatchMessage(CLIContext &, const std::string &);
 
 	/// send message to all connected clients
 	void DistributeMessage(std::uint8_t type, std::uint32_t ref, const std::string &msg);
diff --git a/src/server/net.cpp b/src/server/net.cpp
index d160889..e8325da 100644
--- a/src/server/net.cpp
+++ b/src/server/net.cpp
@@ -439,6 +439,8 @@ void ClientConnection::AttachPlayer(Player &player) {
 	input.reset(new DirectInput(server.GetWorld(), player, server));
 	PlayerEntity().Ref();
 
+	cli_ctx.reset(new NetworkCLIFeedback(player, *this));
+
 	old_base = PlayerChunks().Base();
 	ExactLocation::Coarse begin = PlayerChunks().CoordsBegin();
 	ExactLocation::Coarse end = PlayerChunks().CoordsEnd();
@@ -469,6 +471,7 @@ void ClientConnection::DetachPlayer() {
 	server.GetWorldSave().Write(input->GetPlayer());
 	PlayerEntity().Kill();
 	PlayerEntity().UnRef();
+	cli_ctx.reset();
 	input.reset();
 	transmitter.Abort();
 	chunk_queue.clear();
@@ -629,11 +632,38 @@ void ClientConnection::On(const Packet::Message &pack) {
 	pack.ReadReferral(ref);
 	pack.ReadMessage(msg);
 
-	if (type == 1 && HasPlayer()) {
-		server.DispatchMessage(input->GetPlayer(), msg);
+	if (type == 1 && cli_ctx) {
+		server.DispatchMessage(*cli_ctx, msg);
 	}
 }
 
+uint16_t ClientConnection::SendMessage(uint8_t type, uint32_t from, const string &msg) {
+	auto pack = Prepare<Packet::Message>();
+	pack.WriteType(type);
+	pack.WriteReferral(from);
+	pack.WriteMessage(msg);
+	return Send(Packet::Message::GetSize(msg));
+}
+
+
+NetworkCLIFeedback::NetworkCLIFeedback(Player &p, ClientConnection &c)
+: CLIContext(p)
+, conn(c) {
+
+}
+
+void NetworkCLIFeedback::Error(const string &msg) {
+	conn.SendMessage(0, 0, msg);
+}
+
+void NetworkCLIFeedback::Message(const string &msg) {
+	conn.SendMessage(0, 0, msg);
+}
+
+void NetworkCLIFeedback::Broadcast(const string &msg) {
+	conn.GetServer().DistributeMessage(0, GetPlayer().GetEntity().ID(), msg);
+}
+
 
 Server::Server(
 	const Config::Network &conf,
@@ -788,14 +818,14 @@ void Server::SetBlock(Chunk &chunk, int index, const Block &block) {
 	}
 }
 
-void Server::DispatchMessage(Player &player, const string &msg) {
+void Server::DispatchMessage(CLIContext &ctx, const string &msg) {
 	if (msg.empty()) {
 		return;
 	}
 	if (msg[0] == '/' && msg.size() > 1 && msg[1] != '/') {
-		cli.Execute(player, msg.substr(1));
+		cli.Execute(ctx, msg.substr(1));
 	} else {
-		DistributeMessage(1, player.GetEntity().ID(), msg);
+		DistributeMessage(1, ctx.GetPlayer().GetEntity().ID(), msg);
 	}
 }
 
diff --git a/src/shared/CLI.hpp b/src/shared/CLI.hpp
index b601e57..ab1e3ee 100644
--- a/src/shared/CLI.hpp
+++ b/src/shared/CLI.hpp
@@ -7,7 +7,7 @@
 
 namespace blank {
 
-class Player;
+class CLIContext;
 class TokenStreamReader;
 class World;
 
@@ -16,7 +16,7 @@ class CLI {
 public:
 	struct Command {
 		virtual ~Command();
-		virtual void Execute(CLI &, Player &, TokenStreamReader &) = 0;
+		virtual void Execute(CLI &, CLIContext &, TokenStreamReader &) = 0;
 	};
 
 public:
@@ -25,10 +25,7 @@ public:
 
 	void AddCommand(const std::string &name, Command *);
 
-	void Execute(Player &, const std::string &);
-
-	void Message(const std::string &msg);
-	void Error(const std::string &msg);
+	void Execute(CLIContext &, const std::string &);
 
 private:
 	World &world;
diff --git a/src/shared/CLIContext.hpp b/src/shared/CLIContext.hpp
new file mode 100644
index 0000000..8de432b
--- /dev/null
+++ b/src/shared/CLIContext.hpp
@@ -0,0 +1,38 @@
+#ifndef BLANK_SHARED_CLICONTEXT_HPP_
+#define BLANK_SHARED_CLICONTEXT_HPP_
+
+#include <string>
+
+
+namespace blank {
+
+class Player;
+
+class CLIContext {
+
+public:
+	explicit CLIContext(Player &p)
+	: player(p) { }
+
+	/// get the player responsible for all this
+	Player &GetPlayer() { return player; }
+
+	/// an error has happened and the player should be notified
+	virtual void Error(const std::string &) = 0;
+
+	/// return to sender
+	/// use this for output concerning the originator of a command
+	virtual void Message(const std::string &) = 0;
+
+	/// send a status message to all players
+	/// use this to announce stuff which may be interesting to anyone
+	virtual void Broadcast(const std::string &) = 0;
+
+private:
+	Player &player;
+
+};
+
+}
+
+#endif
diff --git a/src/shared/cli.cpp b/src/shared/cli.cpp
index 6942f78..d4cf525 100644
--- a/src/shared/cli.cpp
+++ b/src/shared/cli.cpp
@@ -1,4 +1,5 @@
 #include "CLI.hpp"
+#include "CLIContext.hpp"
 #include "commands.hpp"
 
 #include "../io/TokenStreamReader.hpp"
@@ -7,6 +8,7 @@
 
 #include <iostream>
 #include <sstream>
+#include <glm/gtx/io.hpp>
 
 using namespace std;
 
@@ -29,7 +31,7 @@ void CLI::AddCommand(const string &name, Command *cmd) {
 	commands[name] = cmd;
 }
 
-void CLI::Execute(Player &player, const string &line) {
+void CLI::Execute(CLIContext &ctx, const string &line) {
 	stringstream s(line);
 	TokenStreamReader args(s);
 	if (!args.HasMore()) {
@@ -37,44 +39,39 @@ void CLI::Execute(Player &player, const string &line) {
 		return;
 	}
 	if (args.Peek().type != Token::IDENTIFIER) {
-		Error("I don't understand");
+		ctx.Error("I don't understand");
 		return;
 	}
 	string name;
 	args.ReadIdentifier(name);
 	auto entry = commands.find(name);
 	if (entry == commands.end()) {
-		Error(name + ": command not found");
+		ctx.Error(name + ": command not found");
 		return;
 	}
 	try {
-		entry->second->Execute(*this, player, args);
+		entry->second->Execute(*this, ctx, args);
 	} catch (exception &e) {
-		Error(name + ": " + e.what());
+		ctx.Error(name + ": " + e.what());
 	} catch (...) {
-		Error(name + ": unknown execution error");
+		ctx.Error(name + ": unknown execution error");
 	}
 }
 
-void CLI::Message(const string &msg) {
-	// TODO: display message to player
-	cout << msg << endl;
-}
-
-void CLI::Error(const string &msg) {
-	Message("CLI error: " + msg);
-}
-
 CLI::Command::~Command() {
 
 }
 
 
-void TeleportCommand::Execute(CLI &cli, Player &player, TokenStreamReader &args) {
+void TeleportCommand::Execute(CLI &cli, CLIContext &ctx, TokenStreamReader &args) {
 	glm::vec3 pos(args.GetFloat(), args.GetFloat(), args.GetFloat());
-	EntityState state = player.GetEntity().GetState();
+	EntityState state = ctx.GetPlayer().GetEntity().GetState();
 	state.pos = ExactLocation(pos).Sanitize();
-	player.GetEntity().SetState(state);
+	ctx.GetPlayer().GetEntity().SetState(state);
+
+	stringstream msg;
+	msg << ctx.GetPlayer().Name() << " teleported to " << pos;
+	ctx.Broadcast(msg.str());
 }
 
 }
diff --git a/src/shared/commands.hpp b/src/shared/commands.hpp
index 53ab697..1c00241 100644
--- a/src/shared/commands.hpp
+++ b/src/shared/commands.hpp
@@ -9,7 +9,7 @@ namespace blank {
 class TeleportCommand
 : public CLI::Command {
 
-	void Execute(CLI &, Player &, TokenStreamReader &) override;
+	void Execute(CLI &, CLIContext &, TokenStreamReader &) override;
 
 };
 
diff --git a/src/standalone/DirectCLIFeedback.hpp b/src/standalone/DirectCLIFeedback.hpp
new file mode 100644
index 0000000..06f2038
--- /dev/null
+++ b/src/standalone/DirectCLIFeedback.hpp
@@ -0,0 +1,31 @@
+#ifndef BLANK_STANDALONE_DIRECTCLIFEEDBACK_HPP_
+#define BLANK_STANDALONE_DIRECTCLIFEEDBACK_HPP_
+
+#include "../shared/CLIContext.hpp"
+
+
+namespace blank {
+
+class HUD;
+
+namespace standalone {
+
+class DirectCLIFeedback
+: public CLIContext {
+
+public:
+	DirectCLIFeedback(Player &, HUD &);
+
+	void Error(const std::string &) override;
+	void Message(const std::string &) override;
+	void Broadcast(const std::string &) override;
+
+private:
+	HUD &hud;
+
+};
+
+}
+}
+
+#endif
diff --git a/src/standalone/MasterState.cpp b/src/standalone/MasterState.cpp
deleted file mode 100644
index 6d45738..0000000
--- a/src/standalone/MasterState.cpp
+++ /dev/null
@@ -1,234 +0,0 @@
-#include "MasterState.hpp"
-
-#include "../app/Config.hpp"
-#include "../app/Environment.hpp"
-#include "../app/init.hpp"
-#include "../geometry/distance.hpp"
-#include "../io/WorldSave.hpp"
-
-#include <SDL.h>
-
-
-namespace blank {
-namespace standalone {
-
-MasterState::MasterState(
-	Environment &env,
-	Config &config,
-	const Generator::Config &gc,
-	const World::Config &wc,
-	const WorldSave &save
-)
-: config(config)
-, env(env)
-, res()
-, sounds()
-, save(save)
-, world(res.block_types, wc)
-, spawn_index(world.Chunks().MakeIndex(wc.spawn, 3))
-, player(*world.AddPlayer(config.player.name))
-, spawn_player(false)
-, hud(env, config, player)
-, manip(env.audio, sounds, player.GetEntity())
-, input(world, player, manip)
-, interface(config, env.keymap, input, *this)
-, generator(gc)
-, chunk_loader(world.Chunks(), generator, save)
-, chunk_renderer(player.GetChunks())
-, spawner(world, res.models, env.rng)
-, sky(env.loader.LoadCubeMap("skybox"))
-, cli(world)
-, preload(env, chunk_loader, chunk_renderer)
-, unload(env, world.Chunks(), save)
-, chat(env, *this, *this) {
-	res.Load(env.loader, "default");
-	if (res.models.size() < 2) {
-		throw std::runtime_error("need at least two models to run");
-	}
-	res.models[0].Instantiate(player.GetEntity().GetModel());
-	sounds.Load(env.loader, res.snd_index);
-	spawner.LimitModels(1, res.models.size());
-	interface.SetInventorySlots(res.block_types.size() - 1);
-	generator.LoadTypes(res.block_types);
-	chunk_renderer.LoadTextures(env.loader, res.tex_index);
-	chunk_renderer.FogDensity(wc.fog_density);
-	if (save.Exists(player)) {
-		save.Read(player);
-	} else {
-		spawn_player = true;
-	}
-}
-
-MasterState::~MasterState() {
-	world.Chunks().UnregisterIndex(spawn_index);
-}
-
-
-void MasterState::OnResume() {
-	if (spawn_index.MissingChunks() > 0) {
-		env.state.Push(&preload);
-		return;
-	}
-	if (spawn_player) {
-		// TODO: spawn
-		spawn_player = false;
-	}
-	hud.KeepMessages(false);
-	OnFocus();
-}
-
-void MasterState::OnPause() {
-	OnBlur();
-}
-
-void MasterState::OnFocus() {
-	if (config.input.mouse) {
-		env.window.GrabMouse();
-	}
-	interface.Unlock();
-}
-
-void MasterState::OnBlur() {
-	env.window.ReleaseMouse();
-	interface.Lock();
-}
-
-
-void MasterState::Handle(const SDL_Event &event) {
-	switch (event.type) {
-		case SDL_KEYDOWN:
-			// TODO: move to interface
-			if (event.key.keysym.sym == SDLK_RETURN) {
-				chat.Clear();
-				env.state.Push(&chat);
-				hud.KeepMessages(true);
-			} else if (event.key.keysym.sym == SDLK_SLASH) {
-				chat.Preset("/");
-				env.state.Push(&chat);
-				hud.KeepMessages(true);
-			} else {
-				interface.HandlePress(event.key);
-			}
-			break;
-		case SDL_KEYUP:
-			interface.HandleRelease(event.key);
-			break;
-		case SDL_MOUSEBUTTONDOWN:
-			interface.HandlePress(event.button);
-			break;
-		case SDL_MOUSEBUTTONUP:
-			interface.HandleRelease(event.button);
-			break;
-		case SDL_MOUSEMOTION:
-			interface.Handle(event.motion);
-			break;
-		case SDL_MOUSEWHEEL:
-			interface.Handle(event.wheel);
-			break;
-		case SDL_QUIT:
-			Exit();
-			break;
-		default:
-			break;
-	}
-}
-
-void MasterState::Update(int dt) {
-	spawner.Update(dt);
-	world.Update(dt);
-	if (input.BlockFocus()) {
-		hud.FocusBlock(input.BlockFocus().GetChunk(), input.BlockFocus().block);
-	} else if (input.EntityFocus()) {
-		hud.FocusEntity(*input.EntityFocus().entity);
-	} else {
-		hud.FocusNone();
-	}
-	hud.Display(res.block_types[player.GetInventorySlot() + 1]);
-	hud.Update(dt);
-	chunk_loader.Update(dt);
-	chunk_renderer.Update(dt);
-
-	glm::mat4 trans = player.GetEntity().Transform(player.GetEntity().ChunkCoords());
-	glm::vec3 dir(trans * glm::vec4(0.0f, 0.0f, -1.0f, 0.0f));
-	glm::vec3 up(trans * glm::vec4(0.0f, 1.0f, 0.0f, 0.0f));
-	env.audio.Position(player.GetEntity().Position());
-	env.audio.Velocity(player.GetEntity().Velocity());
-	env.audio.Orientation(dir, up);
-}
-
-void MasterState::Render(Viewport &viewport) {
-	viewport.WorldPosition(player.GetEntity().ViewTransform(player.GetEntity().ChunkCoords()));
-	if (config.video.world) {
-		chunk_renderer.Render(viewport);
-		world.Render(viewport);
-		if (config.video.debug) {
-			world.RenderDebug(viewport);
-		}
-		sky.Render(viewport);
-	}
-	hud.Render(viewport);
-}
-
-
-void MasterState::SetAudio(bool b) {
-	config.audio.enabled = b;
-	if (b) {
-		hud.PostMessage("Audio enabled");
-	} else {
-		hud.PostMessage("Audio disabled");
-	}
-}
-
-void MasterState::SetVideo(bool b) {
-	config.video.world = b;
-	if (b) {
-		hud.PostMessage("World rendering enabled");
-	} else {
-		hud.PostMessage("World rendering disabled");
-	}
-}
-
-void MasterState::SetHUD(bool b) {
-	config.video.hud = b;
-	if (b) {
-		hud.PostMessage("HUD rendering enabled");
-	} else {
-		hud.PostMessage("HUD rendering disabled");
-	}
-}
-
-void MasterState::SetDebug(bool b) {
-	config.video.debug = b;
-	if (b) {
-		hud.PostMessage("Debug rendering enabled");
-	} else {
-		hud.PostMessage("Debug rendering disabled");
-	}
-}
-
-void MasterState::NextCamera() {
-	if (iszero(env.viewport.CameraOffset())) {
-		env.viewport.OffsetCamera(glm::vec3(0.0f, 0.0f, -5.0f));
-	} else {
-		env.viewport.OffsetCamera(glm::vec3(0.0f, 0.0f, 0.0f));
-	}
-}
-
-void MasterState::Exit() {
-	save.Write(player);
-	env.state.Switch(&unload);
-}
-
-void MasterState::OnLineSubmit(const std::string &line) {
-	if (line.empty()) {
-		return;
-	}
-	if (line[0] == '/' && line.size() > 1 && line[1] != '/') {
-		cli.Execute(player, line.substr(1));
-	} else {
-		hud.PostMessage(line);
-	}
-}
-
-}
-}
diff --git a/src/standalone/MasterState.hpp b/src/standalone/MasterState.hpp
index 610f13a..04234e5 100644
--- a/src/standalone/MasterState.hpp
+++ b/src/standalone/MasterState.hpp
@@ -4,6 +4,7 @@
 #include "../app/State.hpp"
 #include "../ui/ClientController.hpp"
 
+#include "DirectCLIFeedback.hpp"
 #include "PreloadState.hpp"
 #include "UnloadState.hpp"
 #include "../ai/Spawner.hpp"
@@ -90,6 +91,7 @@ private:
 	SkyBox sky;
 
 	CLI cli;
+	DirectCLIFeedback cli_ctx;
 
 	PreloadState preload;
 	UnloadState unload;
diff --git a/src/standalone/PreloadState.cpp b/src/standalone/PreloadState.cpp
deleted file mode 100644
index 554a458..0000000
--- a/src/standalone/PreloadState.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-#include "PreloadState.hpp"
-
-#include "../app/Environment.hpp"
-#include "../world/ChunkLoader.hpp"
-#include "../world/ChunkRenderer.hpp"
-
-
-namespace blank {
-namespace standalone {
-
-PreloadState::PreloadState(Environment &env, ChunkLoader &loader, ChunkRenderer &render)
-: ProgressState(env, "Preloading chunks: %d/%d (%d%%)")
-, env(env)
-, loader(loader)
-, render(render)
-, total(loader.ToLoad())
-, per_update(64) {
-
-}
-
-void PreloadState::Update(int dt) {
-	loader.LoadN(per_update);
-	if (loader.ToLoad() <= 0) {
-		env.state.Pop();
-		render.Update(render.MissingChunks());
-	} else {
-		SetProgress(total - loader.ToLoad(), total);
-	}
-}
-
-}
-}
diff --git a/src/standalone/UnloadState.cpp b/src/standalone/UnloadState.cpp
deleted file mode 100644
index 0b48904..0000000
--- a/src/standalone/UnloadState.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-#include "UnloadState.hpp"
-
-#include "../app/Environment.hpp"
-#include "../io/WorldSave.hpp"
-#include "../world/ChunkLoader.hpp"
-
-
-namespace blank {
-namespace standalone {
-
-UnloadState::UnloadState(
-	Environment &env,
-	ChunkStore &chunks,
-	const WorldSave &save)
-: ProgressState(env, "Unloading chunks: %d/%d (%d%%)")
-, env(env)
-, chunks(chunks)
-, save(save)
-, cur(chunks.begin())
-, end(chunks.end())
-, done(0)
-, total(chunks.NumLoaded())
-, per_update(64) {
-
-}
-
-
-void UnloadState::OnResume() {
-	cur = chunks.begin();
-	end = chunks.end();
-	done = 0;
-	total = chunks.NumLoaded();
-}
-
-
-void UnloadState::Handle(const SDL_Event &) {
-	// ignore everything
-}
-
-void UnloadState::Update(int dt) {
-	for (std::size_t i = 0; i < per_update && cur != end; ++i, ++cur, ++done) {
-		if (cur->ShouldUpdateSave()) {
-			save.Write(*cur);
-		}
-	}
-	if (cur == end) {
-		env.state.Pop();
-	} else {
-		SetProgress(done, total);
-	}
-}
-
-}
-}
diff --git a/src/standalone/standalone.cpp b/src/standalone/standalone.cpp
new file mode 100644
index 0000000..ad6450d
--- /dev/null
+++ b/src/standalone/standalone.cpp
@@ -0,0 +1,323 @@
+#include "DirectCLIFeedback.hpp"
+#include "MasterState.hpp"
+#include "PreloadState.hpp"
+#include "UnloadState.hpp"
+
+#include "../app/Config.hpp"
+#include "../app/Environment.hpp"
+#include "../app/init.hpp"
+#include "../geometry/distance.hpp"
+#include "../io/WorldSave.hpp"
+#include "../world/ChunkLoader.hpp"
+#include "../world/ChunkRenderer.hpp"
+
+#include <SDL.h>
+
+
+namespace blank {
+namespace standalone {
+
+DirectCLIFeedback::DirectCLIFeedback(Player &p, HUD &h)
+: CLIContext(p)
+, hud(h) {
+
+}
+
+void DirectCLIFeedback::Error(const std::string &msg) {
+	hud.PostMessage(msg);
+}
+
+void DirectCLIFeedback::Message(const std::string &msg) {
+	hud.PostMessage(msg);
+}
+
+void DirectCLIFeedback::Broadcast(const std::string &msg) {
+	hud.PostMessage(msg);
+}
+
+
+MasterState::MasterState(
+	Environment &env,
+	Config &config,
+	const Generator::Config &gc,
+	const World::Config &wc,
+	const WorldSave &save
+)
+: config(config)
+, env(env)
+, res()
+, sounds()
+, save(save)
+, world(res.block_types, wc)
+, spawn_index(world.Chunks().MakeIndex(wc.spawn, 3))
+, player(*world.AddPlayer(config.player.name))
+, spawn_player(false)
+, hud(env, config, player)
+, manip(env.audio, sounds, player.GetEntity())
+, input(world, player, manip)
+, interface(config, env.keymap, input, *this)
+, generator(gc)
+, chunk_loader(world.Chunks(), generator, save)
+, chunk_renderer(player.GetChunks())
+, spawner(world, res.models, env.rng)
+, sky(env.loader.LoadCubeMap("skybox"))
+, cli(world)
+, cli_ctx(player, hud)
+, preload(env, chunk_loader, chunk_renderer)
+, unload(env, world.Chunks(), save)
+, chat(env, *this, *this) {
+	res.Load(env.loader, "default");
+	if (res.models.size() < 2) {
+		throw std::runtime_error("need at least two models to run");
+	}
+	res.models[0].Instantiate(player.GetEntity().GetModel());
+	sounds.Load(env.loader, res.snd_index);
+	spawner.LimitModels(1, res.models.size());
+	interface.SetInventorySlots(res.block_types.size() - 1);
+	generator.LoadTypes(res.block_types);
+	chunk_renderer.LoadTextures(env.loader, res.tex_index);
+	chunk_renderer.FogDensity(wc.fog_density);
+	if (save.Exists(player)) {
+		save.Read(player);
+	} else {
+		spawn_player = true;
+	}
+}
+
+MasterState::~MasterState() {
+	world.Chunks().UnregisterIndex(spawn_index);
+}
+
+
+void MasterState::OnResume() {
+	if (spawn_index.MissingChunks() > 0) {
+		env.state.Push(&preload);
+		return;
+	}
+	if (spawn_player) {
+		// TODO: spawn
+		spawn_player = false;
+	}
+	hud.KeepMessages(false);
+	OnFocus();
+}
+
+void MasterState::OnPause() {
+	OnBlur();
+}
+
+void MasterState::OnFocus() {
+	if (config.input.mouse) {
+		env.window.GrabMouse();
+	}
+	interface.Unlock();
+}
+
+void MasterState::OnBlur() {
+	env.window.ReleaseMouse();
+	interface.Lock();
+}
+
+
+void MasterState::Handle(const SDL_Event &event) {
+	switch (event.type) {
+		case SDL_KEYDOWN:
+			// TODO: move to interface
+			if (event.key.keysym.sym == SDLK_RETURN) {
+				chat.Clear();
+				env.state.Push(&chat);
+				hud.KeepMessages(true);
+			} else if (event.key.keysym.sym == SDLK_SLASH) {
+				chat.Preset("/");
+				env.state.Push(&chat);
+				hud.KeepMessages(true);
+			} else {
+				interface.HandlePress(event.key);
+			}
+			break;
+		case SDL_KEYUP:
+			interface.HandleRelease(event.key);
+			break;
+		case SDL_MOUSEBUTTONDOWN:
+			interface.HandlePress(event.button);
+			break;
+		case SDL_MOUSEBUTTONUP:
+			interface.HandleRelease(event.button);
+			break;
+		case SDL_MOUSEMOTION:
+			interface.Handle(event.motion);
+			break;
+		case SDL_MOUSEWHEEL:
+			interface.Handle(event.wheel);
+			break;
+		case SDL_QUIT:
+			Exit();
+			break;
+		default:
+			break;
+	}
+}
+
+void MasterState::Update(int dt) {
+	spawner.Update(dt);
+	world.Update(dt);
+	if (input.BlockFocus()) {
+		hud.FocusBlock(input.BlockFocus().GetChunk(), input.BlockFocus().block);
+	} else if (input.EntityFocus()) {
+		hud.FocusEntity(*input.EntityFocus().entity);
+	} else {
+		hud.FocusNone();
+	}
+	hud.Display(res.block_types[player.GetInventorySlot() + 1]);
+	hud.Update(dt);
+	chunk_loader.Update(dt);
+	chunk_renderer.Update(dt);
+
+	glm::mat4 trans = player.GetEntity().Transform(player.GetEntity().ChunkCoords());
+	glm::vec3 dir(trans * glm::vec4(0.0f, 0.0f, -1.0f, 0.0f));
+	glm::vec3 up(trans * glm::vec4(0.0f, 1.0f, 0.0f, 0.0f));
+	env.audio.Position(player.GetEntity().Position());
+	env.audio.Velocity(player.GetEntity().Velocity());
+	env.audio.Orientation(dir, up);
+}
+
+void MasterState::Render(Viewport &viewport) {
+	viewport.WorldPosition(player.GetEntity().ViewTransform(player.GetEntity().ChunkCoords()));
+	if (config.video.world) {
+		chunk_renderer.Render(viewport);
+		world.Render(viewport);
+		if (config.video.debug) {
+			world.RenderDebug(viewport);
+		}
+		sky.Render(viewport);
+	}
+	hud.Render(viewport);
+}
+
+
+void MasterState::SetAudio(bool b) {
+	config.audio.enabled = b;
+	if (b) {
+		hud.PostMessage("Audio enabled");
+	} else {
+		hud.PostMessage("Audio disabled");
+	}
+}
+
+void MasterState::SetVideo(bool b) {
+	config.video.world = b;
+	if (b) {
+		hud.PostMessage("World rendering enabled");
+	} else {
+		hud.PostMessage("World rendering disabled");
+	}
+}
+
+void MasterState::SetHUD(bool b) {
+	config.video.hud = b;
+	if (b) {
+		hud.PostMessage("HUD rendering enabled");
+	} else {
+		hud.PostMessage("HUD rendering disabled");
+	}
+}
+
+void MasterState::SetDebug(bool b) {
+	config.video.debug = b;
+	if (b) {
+		hud.PostMessage("Debug rendering enabled");
+	} else {
+		hud.PostMessage("Debug rendering disabled");
+	}
+}
+
+void MasterState::NextCamera() {
+	if (iszero(env.viewport.CameraOffset())) {
+		env.viewport.OffsetCamera(glm::vec3(0.0f, 0.0f, -5.0f));
+	} else {
+		env.viewport.OffsetCamera(glm::vec3(0.0f, 0.0f, 0.0f));
+	}
+}
+
+void MasterState::Exit() {
+	save.Write(player);
+	env.state.Switch(&unload);
+}
+
+void MasterState::OnLineSubmit(const std::string &line) {
+	if (line.empty()) {
+		return;
+	}
+	if (line[0] == '/' && line.size() > 1 && line[1] != '/') {
+		cli.Execute(cli_ctx, line.substr(1));
+	} else {
+		hud.PostMessage(line);
+	}
+}
+
+
+PreloadState::PreloadState(Environment &env, ChunkLoader &loader, ChunkRenderer &render)
+: ProgressState(env, "Preloading chunks: %d/%d (%d%%)")
+, env(env)
+, loader(loader)
+, render(render)
+, total(loader.ToLoad())
+, per_update(64) {
+
+}
+
+void PreloadState::Update(int dt) {
+	loader.LoadN(per_update);
+	if (loader.ToLoad() <= 0) {
+		env.state.Pop();
+		render.Update(render.MissingChunks());
+	} else {
+		SetProgress(total - loader.ToLoad(), total);
+	}
+}
+
+
+UnloadState::UnloadState(
+	Environment &env,
+	ChunkStore &chunks,
+	const WorldSave &save)
+: ProgressState(env, "Unloading chunks: %d/%d (%d%%)")
+, env(env)
+, chunks(chunks)
+, save(save)
+, cur(chunks.begin())
+, end(chunks.end())
+, done(0)
+, total(chunks.NumLoaded())
+, per_update(64) {
+
+}
+
+
+void UnloadState::OnResume() {
+	cur = chunks.begin();
+	end = chunks.end();
+	done = 0;
+	total = chunks.NumLoaded();
+}
+
+
+void UnloadState::Handle(const SDL_Event &) {
+	// ignore everything
+}
+
+void UnloadState::Update(int dt) {
+	for (std::size_t i = 0; i < per_update && cur != end; ++i, ++cur, ++done) {
+		if (cur->ShouldUpdateSave()) {
+			save.Write(*cur);
+		}
+	}
+	if (cur == end) {
+		env.state.Pop();
+	} else {
+		SetProgress(done, total);
+	}
+}
+
+}
+}