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annotate rlgterm.js @ 61:071ec6b1ec03

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RLG-Web client: initialize and restore the terminal when watching. Since watchers might not get the curses initialization and ending sequences, the terminal emulator needs to be set up for and restored after watching.
author John "Elwin" Edwards <elwin@sdf.org>
date Tue, 19 Jun 2012 20:08:05 -0700
parents 00b985b8ba6a
children a077f9f84052
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1 /* rlgterm.js: Roguelike Gallery's driver for termemu.js */
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2
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3 // A state machine that keeps track of polling the server.
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4 var ajaxstate = {
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5 state: 0,
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6 timerID: null,
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7 clear: function () {
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8 if (this.timerID != null) {
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9 window.clearTimeout(this.timerID);
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10 this.timerID = null;
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11 }
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12 },
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13 set: function (ms) {
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14 this.clear();
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15 this.timerID = window.setTimeout(getData, ms);
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16 },
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17 gotdata: function () {
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18 this.set(1000);
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19 this.state = 1;
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20 },
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21 gotnothing: function () {
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22 if (this.state == 0) {
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23 this.set(1000);
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24 this.state = 1;
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25 }
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26 else if (this.state < 4) {
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27 this.set(4000);
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28 this.state++;
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29 }
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30 else if (this.state < 8) {
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31 this.set(15000);
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32 this.state++;
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33 }
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34 else {
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35 /* It's been over a minute. Stop polling. */
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36 this.clear();
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37 }
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38 },
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39 posted: function (wasdata) {
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40 if (wasdata) {
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41 this.set(1000);
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42 this.state = 1;
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43 }
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44 else {
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45 this.set(200);
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46 this.state = 0;
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47 }
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48 }
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49 };
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51 /* Data on the available games. */
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52 var games = {
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53 "rogue3": {
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54 "name": "Rogue V3",
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55 "uname": "rogue3"
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56 },
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57 "rogue4": {
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58 "name": "Rogue V4",
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59 "uname": "rogue4"
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60 },
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61 "rogue5": {
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62 "name": "Rogue V5",
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63 "uname": "rogue5"
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64 },
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65 "srogue": {
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66 "name": "Super-Rogue",
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67 "uname": "srogue"
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68 }
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69 };
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70
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71 var session = {
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72 /* The session id assigned by the server. */
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73 id: null,
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74 /* Login name and key */
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75 lname: null,
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76 lcred: null,
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77 /* Whether the game is being played or just watched. */
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78 playing: false
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79 };
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80
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81 function writeData(hexstr) {
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82 var codenum;
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