git.sesse.net Git - pkanalytics/blob - ultimate.js

   1 'use strict';
   2
   3 // No frameworks, no compilers, no npm, just JavaScript. :-)
   4
   5 let global_json;
   6
   7 addEventListener('hashchange', () => { process_matches(global_json); });
   8 fetch('ultimate.json')
   9    .then(response => response.json())
  10    .then(response => { global_json = response; process_matches(global_json); });
  11
  12 function attribute_player_time(player, to, from) {
  13         if (player.on_field_since > from) {
  14                 // Player came in while play happened (without a stoppage!?).
  15                 player.playing_time_ms += to - player.on_field_since;
  16         } else {
  17                 player.playing_time_ms += to - from;
  18         }
  19 }
  20
  21 function take_off_field(player, t, live_since) {
  22         if (live_since === null) {
  23                 // Play isn't live, so nothing to do.
  24         } else {
  25                 attribute_player_time(player, t, live_since);
  26         }
  27         if (player.on_field_since !== null) {  // Just a safeguard; out without in should never happen.
  28                 player.field_time_ms += t - player.on_field_since;
  29         }
  30         player.on_field_since = null;
  31 }
  32
  33 function add_cell(tr, element_type, text) {
  34         let element = document.createElement(element_type);
  35         element.textContent = text;
  36         tr.appendChild(element);
  37 }
  38
  39 function process_matches(json) {
  40         let players = {};
  41         for (const player of json['players']) {
  42                 players[player['player_id']] = {
  43                         'name': player['name'],
  44                         'number': player['number'],
  45
  46                         'goals': 0,
  47                         'assists': 0,
  48                         'hockey_assists': 0,
  49                         'catches': 0,
  50                         'touches': 0,
  51                         'num_throws': 0,
  52                         'throwaways': 0,
  53                         'drops': 0,
  54
  55                         'defenses': 0,
  56                         'interceptions': 0,
  57                         'points_played': 0,
  58                         'playing_time_ms': 0,
  59                         'field_time_ms': 0,
  60
  61                         // For efficiency.
  62                         'offensive_points_completed': 0,
  63                         'offensive_points_won': 0,
  64                         'defensive_points_completed': 0,
  65                         'defensive_points_won': 0,
  66
  67                         'offensive_soft_plus': 0,
  68                         'offensive_soft_minus': 0,
  69                         'defensive_soft_plus': 0,
  70                         'defensive_soft_minus': 0,
  71
  72                         'pulls': 0,
  73                         'pull_times': [],
  74                         'oob_pulls': 0,
  75
  76                         // Internal.
  77                         'last_point_seen': null,
  78                         'on_field_since': null,
  79                 };
  80         }
  81
  82         for (const match of json['matches']) {
  83                 let handler = null;
  84                 let prev_handler = null;
  85                 let live_since = null;
  86                 let offense = null;
  87                 let puller = null;
  88                 let pull_started = null;
  89                 let last_pull_was_ours = null;  // Effectively whether we're playing an O or D point (not affected by turnovers).
  90                 let point_num = 0;
  91                 let last_goal = null;
  92                 for (const [q,p] of Object.entries(players)) {
  93                         p.on_field_since = null;
  94                         p.last_point_seen = null;
  95                 }
  96                 for (const e of match['events']) {
  97                         let t = e['t'];
  98                         let type = e['type'];
  99                         let p = players[e['player']];
 100
 101                         // Sub management
 102                         if (type === 'in' && p.on_field_since === null) {
 103                                 p.on_field_since = t;
 104                         } else if (type === 'out') {
 105                                 take_off_field(p, t, live_since);
 106                         }
 107
 108                         // Liveness management
 109                         if (type === 'pull' || type === 'their_pull' || type === 'restart') {
 110                                 live_since = t;
 111                         } else if (type === 'goal' || type === 'their_goal' || type === 'stoppage') {
 112                                 for (const [q,p] of Object.entries(players)) {
 113                                         if (p.on_field_since === null) {
 114                                                 continue;
 115                                         }
 116                                         if (p.last_point_seen !== point_num) {
 117                                                 // In case the player did nothing this point,
 118                                                 // not even subbing in.
 119                                                 p.last_point_seen = point_num;
 120                                                 ++p.points_played;
 121                                         }
 122                                         attribute_player_time(p, t, live_since);
 123
 124                                         if (last_pull_was_ours === true) {  // D point.
 125                                                 ++p.defensive_points_completed;
 126                                                 if (type === 'goal') {
 127                                                         ++p.defensive_points_won;
 128                                                 }
 129                                         } else if (last_pull_was_ours === false) {  // O point.
 130                                                 ++p.offensive_points_completed;
 131                                                 if (type === 'goal') {
 132                                                         ++p.offensive_points_won;
 133                                                 }
 134                                         }
 135                                 }
 136                                 live_since = null;
 137                         }
 138
 139                         // Point count management
 140                         if (p !== undefined && type !== 'out' && p.last_point_seen !== point_num) {
 141                                 p.last_point_seen = point_num;
 142                                 ++p.points_played;
 143                         }
 144                         if (type === 'goal' || type === 'their_goal') {
 145                                 ++point_num;
 146                                 last_goal = t;
 147                         }
 148
 149                         // Pull management
 150                         if (type === 'pull') {
 151                                 puller = e['player'];
 152                                 pull_started = t;
 153                                 ++p.pulls;
 154                         } else if (type === 'in' || type === 'out' || type === 'stoppage' || type === 'restart' || type === 'unknown' || type === 'set_defense' || type === 'set_offense') {
 155                                 // No effect on pull.
 156                         } else if (type === 'pull_landed' && puller !== null) {
 157                                 players[puller].pull_times.push(t - pull_started);
 158                         } else if (type === 'pull_oob' && puller !== null) {
 159                                 ++players[puller].oob_pulls;
 160                         } else {
 161                                 // Not pulling (if there was one, we never recorded its outcome, but still count it).
 162                                 puller = pull_started = null;
 163                         }
 164
 165                         // Offense/defense management (TODO: use it for actual counting)
 166                         if (type === 'set_defense' || type === 'goal' || type === 'throwaway' || type === 'drop') {
 167                                 offense = false;
 168                         } else if (type === 'set_offense' || type === 'their_goal' || type === 'their_throwaway' || type === 'defense' || type === 'interception') {
 169                                 offense = true;
 170                         }
 171                         if (type === 'pull') {
 172                                 last_pull_was_ours = true;
 173                         } else if (type === 'their_pull') {
 174                                 last_pull_was_ours = false;
 175                         } else if (type === 'set_offense' && last_pull_was_ours === null) {
 176                                 // set_offense could either be “changed to offense for some reason
 177                                 // we could not express”, or “we started in the middle of a point,
 178                                 // and we are offense”. We assume that if we already saw the pull,
 179                                 // it's the former, and if not, it's the latter; thus, the === null
 180                                 // test above. (It could also be “we set offense before the pull,
 181                                 // so that we get the right button enabled”, in which case it will
 182                                 // be overwritten by the next pull/their_pull event anyway.)
 183                                 last_pull_was_ours = false;
 184                         } else if (type === 'set_defense' && last_pull_was_ours === null) {
 185                                 // Similar.
 186                                 last_pull_was_ours = true;
 187                         } else if (type === 'goal' || type === 'their_goal') {
 188                                 last_pull_was_ours = null;
 189                         }
 190
 191                         // Event management
 192                         if (type === 'catch' || type === 'goal') {
 193                                 if (handler !== null) {
 194                                         ++players[handler].num_throws;
 195                                         ++p.catches;
 196                                 }
 197
 198                                 ++p.touches;
 199                                 if (type === 'goal') {
 200                                         if (prev_handler !== null) {
 201                                                 ++players[prev_handler].hockey_assists;
 202                                         }
 203                                         if (handler !== null) {
 204                                                 ++players[handler].assists;
 205                                         }
 206                                         ++p.goals;
 207                                         handler = prev_handler = null;
 208                                 } else {
 209                                         // Update hold history.
 210                                         prev_handler = handler;
 211                                         handler = e['player'];
 212                                 }
 213                         } else if (type === 'throwaway') {
 214                                 ++p.num_throws;
 215                                 ++p.throwaways;
 216                                 handler = prev_handler = null;
 217                         } else if (type === 'drop') {
 218                                 ++p.drops;
 219                                 handler = prev_handler = null;
 220                         } else if (type === 'defense') {
 221                                 ++p.defenses;
 222                         } else if (type === 'interception') {
 223                                 ++p.interceptions;
 224                                 ++p.defenses;
 225                                 ++p.touches;
 226                                 prev_handler = null;
 227                                 handler = e['player'];
 228                         } else if (type === 'offensive_soft_plus' || type === 'offensive_soft_minus' || type === 'defensive_soft_plus' || type === 'defensive_soft_minus') {
 229                                 ++p[type];
 230                         } else if (type !== 'in' && type !== 'out' && type !== 'pull' &&
 231                                    type !== 'their_goal' && type !== 'stoppage' && type !== 'unknown' &&
 232                                    type !== 'set_defense' && type !== 'goal' && type !== 'throwaway' &&
 233                                    type !== 'drop' && type !== 'set_offense' && type !== 'their_goal' &&
 234                                    type !== 'pull' && type !== 'pull_landed' && type !== 'pull_oob' &&
 235                                    type !== 'their_throwaway' && type !== 'defense' && type !== 'interception') {
 236                                 console.log("Unknown event:", e);
 237                         }
 238                 }
 239
 240                 // Add field time for all players still left at match end.
 241                 for (const [q,p] of Object.entries(players)) {
 242                         if (p.on_field_since !== null && last_goal !== null) {
 243                                 p.field_time_ms += last_goal - p.on_field_since;
 244                         }
 245                 }
 246         }
 247
 248         let chosen_category = get_chosen_category();
 249         write_main_menu(chosen_category);
 250
 251         let rows = [];
 252         if (chosen_category === 'general') {
 253                 rows = make_table_general(players);
 254         } else if (chosen_category === 'offense') {
 255                 rows = make_table_offense(players);
 256         } else if (chosen_category === 'defense') {
 257                 rows = make_table_defense(players);
 258         } else if (chosen_category === 'playing_time') {
 259                 rows = make_table_playing_time(players);
 260         }
 261         document.getElementById('stats').replaceChildren(...rows);
 262 }
 263
 264 function get_chosen_category() {
 265         if (window.location.hash === '#offense') {
 266                 return 'offense';
 267         } else if (window.location.hash === '#defense') {
 268                 return 'defense';
 269         } else if (window.location.hash === '#playing_time') {
 270                 return 'playing_time';
 271         } else {
 272                 return 'general';
 273         }
 274 }
 275
 276 function write_main_menu(chosen_category) {
 277         let elems = [];
 278         if (chosen_category === 'general') {
 279                 elems.push(document.createTextNode('General'));
 280         } else {
 281                 let a = document.createElement('a');
 282                 a.appendChild(document.createTextNode('General'));
 283                 a.setAttribute('href', '#general');
 284                 elems.push(a);
 285         }
 286
 287         elems.push(document.createTextNode(' | '));
 288         if (chosen_category === 'offense') {
 289                 elems.push(document.createTextNode('Offense'));
 290         } else {
 291                 let a = document.createElement('a');
 292                 a.appendChild(document.createTextNode('Offense'));
 293                 a.setAttribute('href', '#offense');
 294                 elems.push(a);
 295         }
 296
 297         elems.push(document.createTextNode(' | '));
 298         if (chosen_category === 'defense') {
 299                 elems.push(document.createTextNode('Defense'));
 300         } else {
 301                 let a = document.createElement('a');
 302                 a.appendChild(document.createTextNode('Defense'));
 303                 a.setAttribute('href', '#defense');
 304                 elems.push(a);
 305         }
 306
 307         elems.push(document.createTextNode(' | '));
 308         if (chosen_category === 'playing_time') {
 309                 elems.push(document.createTextNode('Playing time'));
 310         } else {
 311                 let a = document.createElement('a');
 312                 a.appendChild(document.createTextNode('Playing time'));
 313                 a.setAttribute('href', '#playing_time');
 314                 elems.push(a);
 315         }
 316
 317         document.getElementById('mainmenu').replaceChildren(...elems);
 318 }
 319
 320 function make_table_general(players) {
 321         let rows = [];
 322         {
 323                 let header = document.createElement('tr');
 324                 add_cell(header, 'th', 'Player');
 325                 add_cell(header, 'th', '+/-');
 326                 add_cell(header, 'th', 'Soft +/-');
 327                 add_cell(header, 'th', 'O efficiency');
 328                 add_cell(header, 'th', 'D efficiency');
 329                 add_cell(header, 'th', 'Points played');
 330                 rows.push(header);
 331         }
 332
 333         for (const [q,p] of Object.entries(players)) {
 334                 let row = document.createElement('tr');
 335                 let pm = p.goals + p.assists + p.hockey_assists + p.defenses - p.throwaways - p.drops;
 336                 let soft_pm = p.offensive_soft_plus + p.defensive_soft_plus - p.offensive_soft_minus - p.defensive_soft_minus;
 337                 let o_efficiency = (p.offensive_points_won / p.offensive_points_completed) * 2 - 1;
 338                 let d_efficiency = (p.defensive_points_won / p.defensive_points_completed) * 2 - 1;
 339                 add_cell(row, 'td', p.name);  // TODO: number?
 340                 add_cell(row, 'td', pm > 0 ? ('+' + pm) : pm);
 341                 add_cell(row, 'td', soft_pm > 0 ? ('+' + soft_pm) : soft_pm);
 342                 add_cell(row, 'td', p.offensive_points_completed > 0 ? o_efficiency.toFixed(2) : 'N/A');
 343                 add_cell(row, 'td', p.defensive_points_completed > 0 ? d_efficiency.toFixed(2) : 'N/A');
 344                 add_cell(row, 'td', p.points_played);
 345                 rows.push(row);
 346         }
 347         return rows;
 348 }
 349
 350 function make_table_offense(players) {
 351         let rows = [];
 352         {
 353                 let header = document.createElement('tr');
 354                 add_cell(header, 'th', 'Player');
 355                 add_cell(header, 'th', 'Goals');
 356                 add_cell(header, 'th', 'Assists');
 357                 add_cell(header, 'th', 'Hockey assists');
 358                 add_cell(header, 'th', 'Throws');
 359                 add_cell(header, 'th', 'Throwaways');
 360                 add_cell(header, 'th', '%OK');
 361                 add_cell(header, 'th', 'Catches');
 362                 add_cell(header, 'th', 'Drops');
 363                 add_cell(header, 'th', '%OK');
 364                 add_cell(header, 'th', 'Soft +/-');
 365                 rows.push(header);
 366         }
 367
 368         for (const [q,p] of Object.entries(players)) {
 369                 let throw_ok = 100 * (1 - p.throwaways / p.num_throws);
 370                 let catch_ok = 100 * (p.catches / (p.catches + p.drops));
 371
 372                 let row = document.createElement('tr');
 373                 add_cell(row, 'td', p.name);  // TODO: number?
 374                 add_cell(row, 'td', p.goals);
 375                 add_cell(row, 'td', p.assists);
 376                 add_cell(row, 'td', p.hockey_assists);
 377                 add_cell(row, 'td', p.num_throws);
 378                 add_cell(row, 'td', p.throwaways);
 379                 add_cell(row, 'td', throw_ok.toFixed(0) + '%');
 380                 add_cell(row, 'td', p.catches);
 381                 add_cell(row, 'td', p.drops);
 382                 add_cell(row, 'td', catch_ok.toFixed(0) + '%');
 383                 add_cell(row, 'td', '+' + p.offensive_soft_plus);
 384                 add_cell(row, 'td', '-' + p.offensive_soft_minus);
 385                 rows.push(row);
 386         }
 387         return rows;
 388 }
 389
 390 function make_table_defense(players) {
 391         let rows = [];
 392         {
 393                 let header = document.createElement('tr');
 394                 add_cell(header, 'th', 'Player');
 395                 add_cell(header, 'th', 'Ds');
 396                 add_cell(header, 'th', 'Pulls');
 397                 add_cell(header, 'th', 'OOB pulls');
 398                 add_cell(header, 'th', 'Avg. hang time (IB)');
 399                 add_cell(header, 'th', 'Soft +/-');
 400                 rows.push(header);
 401         }
 402         for (const [q,p] of Object.entries(players)) {
 403                 let sum_time = 0;
 404                 for (const t of p.pull_times) {
 405                         sum_time += t;
 406                 }
 407                 let avg_time = 1e-3 * sum_time / p.pulls;
 408                 let oob_pct = 100 * p.oob_pulls / p.pulls;
 409
 410                 let row = document.createElement('tr');
 411                 add_cell(row, 'td', p.name);  // TODO: number?
 412                 add_cell(row, 'td', p.defenses);
 413                 add_cell(row, 'td', p.pulls);
 414                 if (p.pulls === 0) {
 415                         add_cell(row, 'td', 'N/A');
 416                 } else {
 417                         add_cell(row, 'td', p.oob_pulls + ' (' + oob_pct.toFixed(0) + '%)');
 418                 }
 419                 if (p.pulls > p.oob_pulls) {
 420                         add_cell(row, 'td', avg_time.toFixed(1) + ' sec');
 421                 } else {
 422                         add_cell(row, 'td', 'N/A');
 423                 }
 424                 add_cell(row, 'td', '+' + p.defensive_soft_plus);
 425                 add_cell(row, 'td', '-' + p.defensive_soft_minus);
 426                 rows.push(row);
 427         }
 428         return rows;
 429 }
 430
 431 function make_table_playing_time(players) {
 432         let rows = [];
 433         {
 434                 let header = document.createElement('tr');
 435                 add_cell(header, 'th', 'Player');
 436                 add_cell(header, 'th', 'Points played');
 437                 add_cell(header, 'th', 'Time played');
 438                 add_cell(header, 'th', 'Time on field');
 439                 add_cell(header, 'th', 'O points');
 440                 add_cell(header, 'th', 'D points');
 441                 rows.push(header);
 442         }
 443
 444         for (const [q,p] of Object.entries(players)) {
 445                 let row = document.createElement('tr');
 446                 add_cell(row, 'td', p.name);  // TODO: number?
 447                 add_cell(row, 'td', p.points_played);
 448                 add_cell(row, 'td', Math.floor(p.playing_time_ms / 60000) + ' min');
 449                 add_cell(row, 'td', Math.floor(p.field_time_ms / 60000) + ' min');
 450                 add_cell(row, 'td', p.offensive_points_completed);
 451                 add_cell(row, 'td', p.defensive_points_completed);
 452                 rows.push(row);
 453         }
 454         return rows;
 455 }