engine/hudbar.js

   1 /*
   2  * hudbar.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.Hudbar = class{
  24         constructor(inventory, slots){
  25                 this.id = dragonblocks.getToken();
  26                 this.inventory = inventory;
  27                 this.slots = slots;
  28                 this.selectedSlot = 0;
  29                 let display = document.createElement("div");
  30                 display.id = "dragonblocks.hudbar[" + this.id + "]";
  31                 display.style.position = "fixed";
  32                 display.style.bottom = "5px";
  33                 display.style.height = "60px";
  34                 display.style.width = "445px";
  35                 for(let i = 0; i < this.slots; i++){
  36                         let slotDisplay = document.createElement("div");
  37                         slotDisplay.id = "dragonblocks.hudbar[" + this.id + "].slot[" + i + "]";
  38                         slotDisplay.style.position = "absolute";
  39                         slotDisplay.style.top = "3px";
  40                         slotDisplay.style.left = i * 53 + "px";
  41                         slotDisplay.style.width = "50px";
  42                         slotDisplay.style.height = "50px";
  43                         slotDisplay.style.backgroundColor = "black";
  44                         slotDisplay.style.boxShadow = "0 0 0 3px #C5C5C5";
  45                         let slotCountDisplay = document.createElement("span");
  46                         slotCountDisplay.id = slotDisplay.id + ".count";
  47                         slotCountDisplay.style.position = "absolute";
  48                         slotCountDisplay.style.right = "5px";
  49                         slotCountDisplay.style.bottom = "5px";
  50                         slotCountDisplay.style.color = "white";
  51                         slotDisplay.appendChild(slotCountDisplay);
  52                         display.appendChild(slotDisplay);
  53                 }
  54                 let selectorDisplay = document.createElement("div");
  55                 selectorDisplay.id = "dragonblocks.hudbar[" + this.id + "].selector";
  56                 selectorDisplay.style.position = "absolute";
  57                 selectorDisplay.style.top = "3px";
  58                 selectorDisplay.style.width = "50px";
  59                 selectorDisplay.style.height = "50px";
  60                 selectorDisplay.style.boxShadow = "0 0 0 5px #999999";
  61                 display.appendChild(selectorDisplay);
  62                 let itemnameDisplay = document.createElement("span");
  63                 itemnameDisplay.id = "dragonblocks.hudbar[" + this.id + "].itemname";
  64                 itemnameDisplay.style.position = "absolute";
  65                 itemnameDisplay.style.bottom = "60px";
  66                 itemnameDisplay.style.color = "white";
  67                 itemnameDisplay.style.fontSize = "20px";
  68                 display.appendChild(itemnameDisplay);
  69                 display = document.body.insertBefore(display, document.getElementById("dragonblocks.map").nextSibling);
  70                 dblib.center(display);
  71                 this.update();
  72         }
  73         nextItem(){
  74                 (this.selectedSlot++ == 7) && (this.selectedSlot = 0);
  75                 this.update();
  76         }
  77         previousItem(){
  78                 (this.selectedSlot-- == 0) && (this.selectedSlot = 7);
  79                 this.update();
  80         }
  81         select(i){
  82                 this.selectedSlot = i;
  83                 this.update();
  84         }
  85         update(){
  86                 let display = document.getElementById("dragonblocks.hudbar[" + this.id + "]");
  87                 if(! display)
  88                         return;
  89                 for(let i = 0; i < this.slots; i++){
  90                         let itemstack = this.inventory.getSlot(i);
  91                         let slotDisplay = document.getElementById("dragonblocks.hudbar[" + this.id + "].slot[" + i + "]");
  92                         slotDisplay.style.background = itemstack.item ? dragonblocks.getTexture(itemstack.toItem().texture) : "black";
  93                         slotDisplay.style.backgroundSize = "cover";
  94                         slotDisplay.style.opacity = itemstack.item ? 1 : 0.3;
  95                         document.getElementById(slotDisplay.id + ".count").innerHTML = (itemstack.count <= 1) ? "" : itemstack.count;
  96                         if(i == this.selectedSlot){
  97                                 document.getElementById("dragonblocks.hudbar[" + this.id + "].selector").style.left = slotDisplay.style.left;
  98                                 document.getElementById("dragonblocks.hudbar[" + this.id + "].itemname").innerHTML = itemstack.item ? itemstack.toItem().desc : "";
  99                                 dblib.center(document.getElementById("dragonblocks.hudbar[" + this.id + "].itemname"));
 100                         }
 101                 }
 102         }
 103         getSelectedItem(){
 104                 return this.inventory.getSlot(this.selectedSlot);
 105         }
 106 }