engine/item.js

   1 /*
   2  * item.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 dragonblocks.Item = class{
  24         constructor(obj){
  25                 if(! obj)
  26                         dragonblocks.error("Can not register item: Missing argument");
  27                 dblib.copy(this, obj);
  28                 if(! this.name)
  29                         dragonblocks.error("Can not register item: Missing name");
  30                 if(! this.texture)
  31                         dragonblocks.error("Can not register item: Missing texture");
  32                 if(dragonblocks.items[this.name])
  33                         dragonblocks.error("Can not register item '" + this.name + "': Item already exists");
  34                 if(this.desc != "" && this.description != "")
  35                         this.desc = this.description || this.desc || this.name;
  36                 this.stacksize = this.stacksize || dragonblocks.settings.item.defaultStacksize;
  37                 this.groups = this.groups || [];
  38                 this.groups.push("default");
  39                 dragonblocks.items[this.name] = this;
  40                 dragonblocks.registeredItems.push(this);
  41         }
  42         inGroup(name){
  43                 return (this.groups.indexOf(name) != -1);
  44         }
  45         playSound(s){
  46                 if(this.sounds && this.sounds[s]){
  47                         dragonblocks.playSound(this.sounds[s]);
  48                         return;
  49                 }
  50                 else if(this.sounds && this.sounds[s] == "")
  51                         return;
  52                 for(let groupname of this.groups){
  53                         let group = dragonblocks.groups[groupname];
  54                         if(group && group.sounds && group.sounds[s]){
  55                                 dragonblocks.playSound(group.sounds[s]);
  56                                 return;
  57                         }
  58                         else if(group && group.sounds && group.sounds[s] == "")
  59                                 return;
  60                 }
  61         }
  62 }
  63 dragonblocks.registeredItems = [];
  64 dragonblocks.items = {};
  65 dragonblocks.registerItem = function(obj){
  66         new dragonblocks.Item(obj);
  67 }
  68 dragonblocks.onUseItemFunctions = [];
  69 dragonblocks.registerOnUseItem = function(func){
  70         dragonblocks.onUseItemFunctions.push(func);
  71 };
  72 dragonblocks.itemMatch = function(item1, item2){
  73         if(dragonblocks.items[item1])
  74                 item1 = dragonblocks.items[item1];
  75         if(dragonblocks.items[item2])
  76                 item2 = dragonblocks.items[item2];
  77         if(dragonblocks.groups[item1])
  78                 item1 = dragonblocks.groups[item1];
  79         if(dragonblocks.groups[item2])
  80                 item2 = dragonblocks.groups[item2];
  81         return item1 == item2 || item1 && item2 && (item1.name == item2.name || item1.inGroup && item1.inGroup(item2.name) || item2.inGroup && item2.inGroup(item1.name));
  82 }