6 <pre id="terminal" style="display: inline-block; color: white; background-color: black;"></pre>
9 let websocket_location = "ws://localhost:8000";
16 initialize: function() {
17 this.pre_el = document.getElementById("terminal");
18 this.pre_el.style.color = this.foreground;
19 this.pre_el.style.backgroundColor = this.background;
22 for (let y = 0, x = 0; y <= this.rows; x++) {
26 this.content.push(line);
35 blink_screen: function() {
36 this.pre_el.style.color = this.background;
37 this.pre_el.style.backgroundColor = this.foreground;
39 this.pre_el.style.color = this.foreground;
40 this.pre_el.style.backgroundColor = this.background;
45 for (let y = 0; y < this.rows; y++) {
46 let line = this.content[y].join('');
47 pre_string += line + '\n';
49 this.pre_el.textContent = pre_string;
51 write: function(start_y, start_x, msg) {
52 for (let x = start_x, i = 0; x < this.cols && i < msg.length; x++, i++) {
53 this.content[start_y][x] = msg[i];
56 drawBox: function(start_y, start_x, height, width) {
57 let end_y = start_y + height;
58 let end_x = start_x + width;
59 for (let y = start_y, x = start_x; y < this.rows; x++) {
67 this.content[y][x] = ' ';
73 tokenize: function(str) {
79 for (let i = 0; i < str.length; i++) {
85 } else if (c == '\\') {
87 } else if (c == '"') {
92 } else if (c == '"') {
94 } else if (c === ' ') {
95 if (token.length > 0) {
104 if (token.length > 0) {
107 let token_starts = [];
108 for (let i = 0; i < token_ends.length; i++) {
109 token_starts.push(token_ends[i] - tokens[i].length);
111 return [tokens, token_starts];
113 parse_yx: function(position_string) {
114 let coordinate_strings = position_string.split(',')
115 let position = [0, 0];
116 position[0] = parseInt(coordinate_strings[0].slice(2));
117 position[1] = parseInt(coordinate_strings[1].slice(2));
123 init: function(url) {
124 this.websocket = new WebSocket(url);
125 this.websocket.onopen = function(event) {
126 window.setInterval(function() { server.send(['PING']) }, 30000);
127 server.send(['GET_GAMESTATE']);
130 send: function(tokens) {
131 this.websocket.send(unparser.untokenize(tokens));
136 quote: function(str) {
138 for (let i = 0; i < str.length; i++) {
140 if (c in ['"', '\\']) {
146 return quoted.join('');
148 to_yx: function(yx_coordinate) {
149 return "Y:" + yx_coordinate[0] + ",X:" + yx_coordinate[1];
151 untokenize: function(tokens) {
152 let quoted_tokens = [];
153 for (let token of tokens) {
154 quoted_tokens.push(this.quote(token));
156 return quoted_tokens.join(" ");
161 constructor(name, has_input_prompt=false, shows_annotations=false) {
163 this.has_input_prompt = has_input_prompt;
164 this.shows_annotations = shows_annotations;
167 let mode_login = new Mode('login', true, false);
168 let mode_chat = new Mode('chat', true, false);
169 let mode_annotate = new Mode('annotate', true, true);
170 let mode_play = new Mode('play', false, false);
171 let mode_study = new Mode('study', false, true);
172 let mode_edit = new Mode('edit', false, false);
180 window_width: terminal.cols / 2,
185 this.recalc_input_lines();
186 this.height_header = this.height_turn_line + this.height_mode_line;
187 this.log_msg("Please enter your username:");
189 switch_mode: function(mode, keep_pos=false) {
190 if (mode == mode_study && !keep_pos) {
191 explorer.position = game.things[game.player_id];
195 if (mode == mode_annotate && explorer.position in explorer.info_db) {
196 let info = explorer.info_db[explorer.position];
197 if (info != "(none)") {
198 this.add_to_input(explorer.info_db[explorer.position]);
203 draw_mode_line: function() {
204 terminal.drawBox(1, this.window_width, this.height_mode_line, this.window_width);
205 terminal.write(1, this.window_width, 'MODE ' + this.mode.name);
207 draw_history: function() {
208 if (terminal.rows <= this.height_header + this.height_input) {
211 terminal.drawBox(this.height_header, this.window_width, terminal.rows - this.height_header - this.height_input, this.window_width);
212 for (let y = terminal.rows - 1 - this.height_input,
213 i = this.log.length - 1;
214 y >= this.height_header && i >= 0;
216 terminal.write(y, this.window_width, this.log[i]);
219 draw_map: function() {
220 terminal.drawBox(0, 0, terminal.rows, this.window_width);
223 for (let i = 0, j = 0; i < game.map.length; i++, j++) {
224 if (j == game.map_size[1]) {
225 map_lines.push(line);
229 line.push(game.map[i]);
231 map_lines.push(line);
232 let player_position = [0,0];
233 let center_pos = [Math.floor(game.map_size[0] / 2),
234 Math.floor(game.map_size[1] / 2)];
235 for (const thing_id in game.things) {
236 let t = game.things[thing_id];
237 map_lines[t[0]][t[1]] = '@';
238 if (game.player_id == thing_id) {
242 if (tui.mode.shows_annotations) {
243 map_lines[explorer.position[0]][explorer.position[1]] = '?';
244 center_pos = explorer.position;
246 let offset = [(terminal.rows / 2) - center_pos[0],
247 this.window_width / 2 - center_pos[1]];
248 for (let term_y = offset[0], map_y = 0;
249 term_y < terminal.rows && map_y < game.map_size[0];
252 let to_draw = map_lines[map_y].join('').slice(0, this.window_width - offset[1]);
253 terminal.write(term_y, offset[1], to_draw);
257 draw_turn_line: function(n) {
258 terminal.drawBox(0, this.window_width, 1, this.window_width);
259 terminal.write(0, this.window_width, 'turn: ' + game.turn);
261 empty_input: function(str) {
263 if (this.mode.has_input_prompt) {
264 this.recalc_input_lines();
266 this.height_input = 0;
269 add_to_input: function(str) {
270 if (this.input_prompt.length + this.input.length + str.length > this.window_width * terminal.rows) {
274 this.recalc_input_lines();
276 recalc_input_lines: function() {
277 this.input_lines = this.msg_into_lines_of_width(this.input_prompt + this.input, this.window_width);
278 this.height_input = this.input_lines.length;
280 shorten_input: function() {
281 if (this.input.length == 0) {
282 terminal.blink_screen();
284 this.input = tui.input.slice(0, -1);
285 this.recalc_input_lines();
288 draw_input: function() {
289 terminal.drawBox(terminal.rows - this.height_input, this.window_width, this.height_input, this.window_width);
290 if (this.mode.has_input_prompt) {
291 for (let y = terminal.rows - this.height_input, i = 0; y < terminal.rows && i < this.input_lines.length; y++, i++) {
292 terminal.write(y, this.window_width, this.input_lines[i]);
296 msg_into_lines_of_width: function(msg, width) {
299 for (let i = 0, x = 0; i < msg.length; i++, x++) {
310 log_msg: function(msg) {
311 let lines = this.msg_into_lines_of_width(msg, this.window_width);
312 this.log = this.log.concat(lines);
313 while (this.log.length > terminal.rows) {
318 refresh: function() {
321 log_help: function() {
323 this.log_msg("HELP");
325 this.log_msg("chat mode commands:");
326 this.log_msg(":nick NAME - re-name yourself to NAME");
327 this.log_msg(":msg USER TEXT - send TEXT to USER");
328 this.log_msg(":help - show this help");
329 this.log_msg(":play or :p - switch to play mode");
330 this.log_msg(":study or :s - switch to study mode");
332 this.log_msg("play mode commands:");
333 this.log_msg("w, a, s, d - move avatar");
334 this.log_msg("f - flatten surroundings");
335 this.log_msg("e - write following ASCII character");
336 this.log_msg("c - switch to chat mode");
337 this.log_msg("? - switch to study mode");
339 this.log_msg("study mode commands:");
340 this.log_msg("w, a, s, d - move question mark");
341 this.log_msg("A - annotate terrain");
342 this.log_msg("c - switch to chat mode");
343 this.log_msg("p - switch to play mode");
346 draw_info: function() {
347 terminal.drawBox(this.height_header, this.window_width, terminal.rows - this.height_header - this.height_input, this.window_width);
348 let lines = this.msg_into_lines_of_width(explorer.get_info(), this.window_width);
349 for (let y = this.height_header, i = 0; y < terminal.rows && i < lines.length; y++, i++) {
350 terminal.write(y, this.window_width, lines[i]);
353 full_refresh: function() {
355 this.draw_turn_line();
356 this.draw_mode_line();
357 if (this.mode.shows_annotations) {
375 terminal.initialize();
379 server.init(websocket_location);
380 server.websocket.onmessage = function (event) {
381 let tokens = parser.tokenize(event.data)[0];
382 if (tokens[0] === 'TURN') {
384 game.turn = parseInt(tokens[1]);
385 } else if (tokens[0] === 'THING_POS') {
386 game.things[tokens[1]] = parser.parse_yx(tokens[2]);
387 } else if (tokens[0] === 'MAP') {
388 game.map_size = parser.parse_yx(tokens[1]);
390 } else if (tokens[0] === 'GAME_STATE_COMPLETE') {
391 explorer.empty_info_db();
392 if (tui.mode == mode_study) {
393 explorer.query_info();
395 tui.draw_turn_line();
398 } else if (tokens[0] === 'CHAT') {
399 tui.log_msg('# ' + tokens[1], 1);
401 } else if (tokens[0] === 'PLAYER_ID') {
402 game.player_id = parseInt(tokens[1]);
403 } else if (tokens[0] === 'META') {
404 tui.log_msg('@ ' + tokens[1]);
406 } else if (tokens[0] === 'LOGIN_OK') {
407 tui.log_msg('@ ' + tokens[1]);
409 tui.switch_mode(mode_chat);
410 } else if (tokens[0] === 'ANNOTATION') {
411 let position = parser.parse_yx(tokens[1]);
412 explorer.update_info_db(position, tokens[2]);
413 } else if (tokens[0] === 'UNHANDLED_INPUT') {
414 tui.log_msg('? unknown command');
416 } else if (tokens[0] === 'PLAY_ERROR') {
417 terminal.blink_screen();
418 } else if (tokens[0] === 'ARGUMENT_ERROR') {
419 tui.log_msg('? syntax error: ' + tokens[1]);
421 } else if (tokens[0] === 'GAME_ERROR') {
422 tui.log_msg('? game error: ' + tokens[1]);
424 } else if (tokens[0] === 'PONG') {
427 tui.log_msg('? unhandled input: ' + event.data);
435 move: function(direction) {
437 try_pos[0] = this.position[0];
438 try_pos[1] = this.position[1];
439 if (direction == 'left') {
441 } else if (direction == 'right') {
443 } else if (direction == 'up') {
445 } else if (direction == 'down') {
448 if (!(try_pos[0] < 0) &&
450 !(try_pos[0] >= game.map_size[0])
451 && !(try_pos[1] >= game.map_size[1])) {
452 this.position = try_pos;
459 update_info_db: function(yx, str) {
460 this.info_db[yx] = str;
461 if (tui.mode == mode_study) {
466 empty_info_db: function() {
468 if (tui.mode == mode_study) {
473 query_info: function() {
474 server.send(["GET_ANNOTATION", unparser.to_yx(explorer.position)]);
476 get_info: function() {
477 if (this.position in this.info_db) {
478 return this.info_db[this.position];
483 annotate: function(msg) {
484 if (msg.length == 0) {
485 msg = " "; // triggers annotation deletion
487 server.send(["ANNOTATE", unparser.to_yx(explorer.position), msg]);
491 document.addEventListener('keydown', (event) => {
492 if (tui.mode.has_input_prompt && event.key.length === 1) {
493 tui.add_to_input(event.key);
495 } else if (tui.mode.has_input_prompt && event.key == 'Backspace') {
498 } else if (tui.mode == mode_login && event.key == 'Enter') {
499 server.send(['LOGIN', tui.input]);
500 tui.switch_mode(mode_login);
501 } else if (tui.mode == mode_annotate && event.key == 'Enter') {
502 explorer.annotate(tui.input);
503 tui.switch_mode(mode_study, true);
504 } else if (tui.mode == mode_chat && event.key == 'Enter') {
505 let [tokens, token_starts] = parser.tokenize(tui.input);
506 if (tokens.length > 0 && tokens[0].length > 0) {
507 if (tokens[0][0] == ':') {
508 if (tokens[0] == ':play' || tokens[0] == ':p') {
509 tui.switch_mode(mode_play);
510 } else if (tokens[0] == ':study' || tokens[0] == ':s') {
511 tui.switch_mode(mode_study);
512 } else if (tokens[0] == ':help') {
515 } else if (tokens[0] == ':nick') {
516 if (tokens.length > 1) {
517 server.send(['LOGIN', tokens[1]]);
519 tui.log_msg('? need login name');
521 } else if (tokens[0] == ':msg') {
522 if (tokens.length > 2) {
523 let msg = tui.input.slice(token_starts[2]);
524 server.send(['QUERY', tokens[1], msg]);
526 tui.log_msg('? need message target and message');
529 tui.log_msg('? unknown command');
532 server.send(['ALL', tui.input]);
537 } else if (tui.mode == mode_play) {
538 if (event.key === 'c') {
539 tui.switch_mode(mode_chat);
540 } else if (event.key === 'e') {
541 tui.switch_mode(mode_edit);
542 } else if (event.key === '?') {
543 tui.switch_mode(mode_study);
544 } else if (event.key === 'F1') {
547 } else if (event.key === 'f') {
548 server.send(["TASK:FLATTEN_SURROUNDINGS"]);
549 } else if (event.key === 'a') {
550 server.send(['TASK:MOVE', 'LEFT']);
551 } else if (event.key === 'd') {
552 server.send(['TASK:MOVE', 'RIGHT']);
553 } else if (event.key === 'w') {
554 server.send(['TASK:MOVE', 'UP']);
555 } else if (event.key === 's') {
556 server.send(['TASK:MOVE', 'DOWN']);
558 } else if (tui.mode == mode_edit) {
559 if (event.key != "Shift" && event.key.length == 1) {
560 server.send(["TASK:WRITE", event.key]);
561 tui.switch_mode(mode_play);
563 } else if (tui.mode == mode_study) {
564 if (event.key === 'c') {
565 tui.switch_mode(mode_chat);
566 } else if (event.key == 'p') {
567 tui.switch_mode(mode_play);
568 } else if (event.key === 'a') {
569 explorer.move('left');
570 } else if (event.key === 'd') {
571 explorer.move('right');
572 } else if (event.key === 'w') {
574 } else if (event.key === 's') {
575 explorer.move('down');
576 } else if (event.key === 'A') {
577 tui.switch_mode(mode_annotate);