engine/mainmenu.js

   1 /*
   2  * mainmenu.js
   3  *
   4  * Copyright 2020 Elias Fleckenstein <eliasfleckenstein@web.de>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  19  * MA 02110-1301, USA.
  20  *
  21  *
  22  */
  23
  24 {
  25         document.title = dragonblocks.version.string;
  26
  27         let mainmenu = document.body.insertBefore(document.createElement("div"), document.body.firstChild);
  28         mainmenu.style.visibility = "hidden";
  29
  30         let center = mainmenu.appendChild(document.createElement("center"));
  31
  32         let logo = center.appendChild(document.createElement("img"));
  33         logo.src = "textures/logo-mainmenu.png";
  34
  35         let splash = mainmenu.appendChild(document.createElement("div"));
  36         splash.style.position = "absolute";
  37         splash.style.transform = "rotate(-15deg)";
  38         splash.style.color = "yellow";
  39         splash.style.fontSize = "30px";
  40
  41         let splashes = $.getJSON("splashes.json").responseJSON;
  42
  43         let status = center.appendChild(document.createElement("h1"));
  44         status.style.fontSize = "50px";
  45         status.style.display = "none";
  46
  47         let content = center.appendChild(document.createElement("div"));
  48         content.id = "dragonblocks.mainmenu.content";
  49         content.style.position = "relative";
  50         content.style.top = "50px";
  51
  52         let buttons = [];
  53         let onReload = [];
  54
  55         let clearChildren = parent => {
  56                 while (elem = parent.firstChild)
  57                         elem.remove();
  58         };
  59
  60         // Load World Button
  61
  62         {
  63                 let loadWorldGUI, worldlistDisplay, noWorldsNotice;
  64
  65                 if (dragonblocks.loggedin) {
  66                         onReload.push(_ => {
  67                                 if (loadWorldGUI) {
  68                                         clearChildren(worldlistDisplay);
  69                                 } else {
  70                                         loadWorldGUI = new dragonblocks.gui.Box();
  71
  72                                         let headline = loadWorldGUI.create("h1");
  73                                         headline.innerHTML = "Select World";
  74                                         headline.align = "center";
  75
  76                                         noWorldsNotice = loadWorldGUI.create("center").appendChild(document.createElement("b"));
  77
  78                                         worldlistDisplay = loadWorldGUI.create("ul");
  79                                 }
  80
  81                                 noWorldsNotice.innerHTML = dragonblocks.worlds.length == 0 ? "No Worlds" : "";
  82
  83                                 for (let worldname in dragonblocks.worlds) {
  84                                         let world = dragonblocks.worlds[worldname];
  85
  86                                         if (world.owned) {
  87                                                 let worldDisplay = worldlistDisplay.appendChild(document.createElement("li"));
  88                                                 worldDisplay.style.fontSize = "20px";
  89                                                 worldDisplay.textContent = world.name;
  90                                                 worldDisplay.style.postion = "relative";
  91
  92                                                 let button = worldDisplay.appendChild(document.createElement("button"));
  93                                                 button.textContent = "Play";
  94                                                 button.style.position = "absolute";
  95                                                 button.style.right = "5px";
  96                                                 button.style.fontSize = "12px";
  97                                                 button.addEventListener("click", event => {
  98                                                         event.srcElement.blur();
  99                                                         loadWorldGUI.close();
 100
 101                                                         dragonblocks.worldIsLoaded = true;
 102                                                         dragonblocks.worldname = world.name;
 103                                                         dragonblocks.world = $.getJSON("worlds/" + worldname + "/world.json").responseJSON;
 104
 105                                                         dragonblocks.mods = dragonblocks.world.mods;
 106
 107                                                         dragonblocks.start();
 108                                                 });
 109                                         }
 110                                 }
 111                         });
 112                 }
 113
 114                 buttons.push({
 115                         text: "Load Saved World",
 116                         action: _ => {
 117                                 loadWorldGUI.open()
 118                         },
 119                         disabled: ! dragonblocks.loggedin,
 120                 })
 121         }
 122
 123         // Create World Button
 124
 125         {
 126                 let createWorldGUI = new dragonblocks.gui.Box();
 127                 let createButton;
 128
 129                 let worldProperties = {};
 130
 131                 let headline = createWorldGUI.create("h1");
 132                 headline.innerHTML = "New World";
 133                 headline.align = "center";
 134
 135                 // Worldname
 136                 createWorldGUI.create("h2").innerHTML = "&ensp;World Name";
 137
 138                 let worldnameInput = createWorldGUI.create("input");
 139                 worldnameInput.type = "text";
 140                 worldnameInput.style.position = "relative";
 141                 worldnameInput.style.left = "40px";
 142
 143                 let worldnameAlert = createWorldGUI.create("b");
 144                 worldnameAlert.style.position = "relative";
 145                 worldnameAlert.style.left = "50px";
 146
 147                 worldnameInput.addEventListener("input", _ => {
 148                         let worldname = worldnameInput.value;
 149
 150                         if(! dragonblocks.loggedin) {
 151                                 worldnameAlert.textContent = "Warning: You are not logged in and cannot save worlds.";
 152                                 worldnameAlert.style.color = "#FF7D00";
 153                                 createButton.disabled = false;
 154                         } else if (worldname == "") {
 155                                 worldnameAlert.textContent = "";
 156                                 createButton.disabled = true;
 157                         } else if (! dragonblocks.checkWorldnameSpelling(worldname)) {
 158                                 worldnameAlert.textContent = "The world name contains forbidden characters";
 159                                 worldnameAlert.style.color = "#FF001F";
 160                                 createButton.disabled = true;
 161                         } else if (dragonblocks.worlds[worldname]) {
 162                                 if (dragonblocks.worlds[worldname].owned) {
 163                                         worldnameAlert.textContent = "Warning: This will overwrite an existing world";
 164                                         worldnameAlert.style.color = "#FF7D00";
 165                                         createButton.disabled = false;
 166                                 } else {
 167                                         worldnameAlert.textContent = "This Worldname is taken";
 168                                         worldnameAlert.style.color = "#FF001F";
 169                                         createButton.disabled = true;
 170                                 }
 171                         } else {
 172                                 worldnameAlert.textContent = "";
 173                                 createButton.disabled = false;
 174                         }
 175
 176                         worldProperties.worldname = worldname;
 177                 });
 178
 179                 // Mods
 180                 worldProperties.mods = {};
 181
 182                 createWorldGUI.create("h2").innerHTML = "&ensp;Mods";
 183
 184                 let modlistDisplay;
 185
 186                 let updateModlist = _ => {
 187                         if (modlistDisplay)
 188                                 clearChildren(modlistDisplay);
 189                         else
 190                                 modlistDisplay = createWorldGUI.create("ul");
 191
 192                         let oldSelectedMods = worldProperties.mods;
 193                         worldProperties.mods = {};
 194
 195                         for (let modname in dragonblocks.mods) {
 196                                 let modinfo = dragonblocks.mods[modname];
 197
 198                                 let modDisplay = modlistDisplay.appendChild(document.createElement("li"));
 199                                 modDisplay.style.fontSize = "20px";
 200                                 modDisplay.innerHTML = mod;
 201                                 modDisplay.style.postion = "relative";
 202                                 modDisplay.title = modinfo.description;
 203
 204                                 let checkbox = modDisplay.appendChild(document.createElement("input"));
 205                                 checkbox.type = "checkbox";
 206                                 checkbox.style.position = "absolute";
 207                                 checkbox.style.right = "5px";
 208
 209                                 checkbox.addEventListener("input", _ => {
 210                                         worldProperties.mods[mod] = checkbox.checked;
 211                                 });
 212
 213                                 worldProperties.mods[mod] = checkbox.checked = oldSelectedMods[mod];
 214                         }
 215                 };
 216
 217                 // Gamemode
 218                 worldProperties.gamemode = "survival";
 219
 220                 createWorldGUI.create("h2").innerHTML = "&ensp;Gamemode";
 221
 222                 for (let gamemode of ["survival", "creative"]){
 223                         let radiobox = createWorldGUI.create("input");
 224                         radiobox.name = "dragonblocks.mainmenu.createWorldGUI.gamemode";
 225                         radiobox.type = "radio";
 226                         radiobox.checked = gamemode == worldProperties.gamemode;
 227                         radiobox.style.position = "relative";
 228                         radiobox.style.left = "40px";
 229
 230                         radiobox.addEventListener("input", _ => {
 231                                 if (radiobox.checked)
 232                                         worldProperties.gamemode = gamemode;
 233                         });
 234
 235                         let label = createWorldGUI.create("label");
 236                         label.innerHTML = dblib.humanFormat(gamemode);
 237                         label.style.position = "relative";
 238                         label.style.left = "40px";
 239                 }
 240
 241                 // Mapgen
 242                 createWorldGUI.create("h2").innerHTML = "&ensp;Mapgen";
 243
 244                 let selectMapgen = createWorldGUI.create("select");
 245                 selectMapgen.style.position = "relative";
 246                 selectMapgen.style.left = "40px";
 247
 248                 selectMapgen.addEventListener("input", _ => {
 249                         worldProperties.mapgen = selectMapgen.value;
 250                 });
 251
 252                 for (let mapgen in dragonblocks.mapgen.list)
 253                         selectMapgen.appendChild(document.createElement("option")).innerHTML = mapgen;
 254
 255                 worldProperties.mapgen = selectMapgen.value;
 256
 257                 createWorldGUI.create("br");
 258                 createWorldGUI.create("br");
 259
 260                 // Create Button
 261                 createButton = createWorldGUI.create("button");
 262                 createButton.style.position = "absolute";
 263                 createButton.style.left = "1%";
 264                 createButton.style.bottom = "5px";
 265                 createButton.style.width = "98%";
 266                 createButton.style.fontSize = "20px";
 267                 createButton.innerHTML = "Create World";
 268
 269                 createButton.addEventListener("click", event => {
 270                         event.srcElement.blur();
 271                         createWorldGUI.close();
 272
 273                         dragonblocks.worldIsLoaded = false;
 274                         dragonblocks.worldname = worldProperties.worldname;
 275                         dragonblocks.world = dragonblocks.getEmptyWorld();
 276
 277                         dragonblocks.entities["dragonblocks:player"].meta.creative = (worldProperties.gamemode == "creative");
 278
 279                         dragonblocks.mapgen.selected = worldProperties.mapgen;
 280
 281                         dragonblocks.start(worldProperties.mods);
 282                 });
 283
 284                 createWorldGUI.create("br");
 285                 createWorldGUI.create("br");
 286
 287                 onReload.push(_ => {
 288                         worldnameInput.value = "";
 289                         worldnameAlert.textContent = "";
 290                         createButton.disabled = dragonblocks.loggedin;
 291
 292                         updateModlist();
 293                 });
 294
 295                 buttons.push({
 296                         text: "Create New World",
 297                         action: _ => {
 298                                 createWorldGUI.open();
 299                         },
 300                 });
 301         }
 302
 303         // Credits Button
 304
 305         {
 306                 let creditsGUI = new dragonblocks.gui.Box();
 307
 308                 let pages = $.getJSON("credits.json").responseJSON;
 309                 let page = 0;
 310
 311                 for (let dir of ["left", "right"]) {
 312                         let arrow = creditsGUI.create("div");
 313                         arrow.style.position = "absolute";
 314                         arrow.style.width = "80px";
 315                         arrow.style.height = "80px";
 316                         arrow.style.position = "absolute";
 317                         arrow.style[dir] = "3px";
 318                         arrow.style.background = dragonblocks.getTexture("arrow.png");
 319                         arrow.style.backgroundSize = "cover";
 320                         arrow.style.cursor = "pointer";
 321
 322                         if (dir == "right")
 323                                 arrow.style.transform = "rotate(180deg)";
 324
 325                         arrow.addEventListener("click", _ => {
 326                                 if (dir == "right")
 327                                         page++;
 328                                 else
 329                                         page--;
 330
 331                                 creditsGUI.open();
 332                         });
 333
 334                         dblib.centerVertical(arrow);
 335                 }
 336
 337                 let creditsContent = creditsGUI.create("center");
 338
 339                 creditsGUI.addEventListener("open", _ => {
 340                         if (page < 0)
 341                                 page = pages.length - 1;
 342                         else if (page >= pages.length)
 343                                 page = 0;
 344
 345                         creditsContent.innerHTML = pages[page];
 346                         dragonblocks.resolveTextures(creditsContent);
 347
 348                         // fix to center the dots of the li elements in chromium as well
 349
 350                         let lis = creditsContent.getElementsByTagName("li");
 351
 352                         for (let li of lis)
 353                                 li.style.width = "max-content";
 354                 });
 355
 356                 buttons.push({
 357                         text: "Credits",
 358                         action: _ => {
 359                                 creditsGUI.open();
 360                         },
 361                 });
 362         }
 363
 364         // Quit Button
 365
 366         {
 367                 buttons.push({
 368                         text: "Quit",
 369                         action: _ => {
 370                                 if (dragonblocks.isChromeApp)
 371                                         window.close();
 372                                 else
 373                                         history.back();
 374                         },
 375                 });
 376         }
 377
 378         for (let {text, action, disabled} of buttons) {
 379                 let button = content.appendChild(document.createElement("button"));
 380                 button.style.fontSize = "40px";
 381                 button.style.width = "100%";
 382                 button.innerHTML = text;
 383                 button.disabled = disabled;
 384                 button.addEventListener("click", action);
 385
 386                 content.appendChild(document.createElement("br"));
 387                 content.appendChild(document.createElement("br"));
 388         }
 389
 390         for (let [side, text] of [["left", dragonblocks.version.string], ["right", dragonblocks.version.copyright]]) {
 391                 let notice = content.appendChild(document.createElement("span"));
 392                 notice.style.position = "fixed";
 393                 notice.style.bottom = "5px";
 394                 notice.style[side] = "5px";
 395                 notice.innerHTML = text;
 396         }
 397
 398         dragonblocks.enterMainMenu = _ => {
 399                 dragonblocks.loadModList();
 400                 dragonblocks.loadWorldList();
 401
 402                 content.style.display = "inherit";
 403                 status.style.display = "none";
 404
 405                 for (let func of onReload)
 406                         func();
 407         };
 408
 409         dragonblocks.registerOnStart(_ => {
 410                 content.style.display = "none";
 411                 status.style.display = "inherit";
 412
 413                 status.innerHTML = "Loading...";
 414         });
 415
 416         dragonblocks.registerOnStarted(_ => {
 417                 mainmenu.style.visibility = "hidden";
 418         });
 419
 420         dragonblocks.registerOnQuit(_ => {
 421                 mainmenu.style.visibility = "visible";
 422                 status.innerHTML = "Saving...";
 423         });
 424
 425         let updateSplash = _ => {
 426                 splash.style.left = (logo.x + logo.width - splash.clientWidth / 2) + "px";
 427                 splash.style.top = (logo.y + logo.height / 3 * 2 - splash.clientHeight / 2) + "px";
 428         };
 429
 430         let initMainMenu = _ => {
 431                 document.body.style.backgroundColor = "skyblue";
 432                 document.getElementById("elidragon").remove();
 433                 content.style.width = logo.offsetWidth + "px";
 434                 mainmenu.style.visibility = "visible";
 435
 436                 splash.innerHTML = splashes[Math.floor(Math.random() * splashes.length)];
 437                 updateSplash();
 438
 439                 let counter = 0;
 440                 setInterval(_ => {
 441                         splash.style.fontSize = Math.sin(counter++ / 100 * Math.PI) * 5 + 30 + "px";
 442                         updateSplash();
 443                 });
 444
 445                 dragonblocks.enterMainMenu();
 446         };
 447
 448         if (logo.complete)
 449                 initMainMenu();
 450         else
 451                 logo.addEventListener("load", initMainMenu);
 452 }