Add toggle-able setting for shuffling the back row

Add gear icon for settings. Add some framework for easier addition of
toggle-able settings. Might be good to make it more generic across other
(not purely toggle) types of settings.

public/gear.svg

@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   id="svg2995"
+   sodipodi:docname="gearYellow.svg"
+   inkscape:export-filename="/home/aztlek/Documentos/IDU/TOGAF IDU/TOGAF IDU V2.0/aplicacionEnDesuso-16x16.png"
+   viewBox="0 0 48 48"
+   inkscape:export-xdpi="30.18"
+   version="1.1"
+   inkscape:export-ydpi="30.18"
+   inkscape:version="1.0.1 (3bc2e813f5, 2020-09-07)">
+  <defs
+     id="defs60" />
+  <sodipodi:namedview
+     id="base"
+     bordercolor="#666666"
+     inkscape:pageshadow="2"
+     inkscape:window-y="0"
+     pagecolor="#ffffff"
+     inkscape:window-height="1016"
+     inkscape:grid-bbox="true"
+     inkscape:window-maximized="1"
+     inkscape:zoom="11.291667"
+     inkscape:window-x="0"
+     showgrid="true"
+     borderopacity="1.0"
+     inkscape:current-layer="layer1"
+     inkscape:cx="7.8376389"
+     inkscape:cy="24"
+     inkscape:window-width="1920"
+     inkscape:pageopacity="0.0"
+     inkscape:document-units="px"
+     inkscape:document-rotation="0" />
+  <g
+     id="layer1"
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer">
+    <path
+       id="path2989"
+       style="fill:#7f7f7f;fill-opacity:1"
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+     id="metadata57">
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+      <cc:Work>
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <cc:license
+           rdf:resource="http://creativecommons.org/licenses/publicdomain/" />
+        <dc:publisher>
+          <cc:Agent
+             rdf:about="http://openclipart.org/">
+            <dc:title>Openclipart</dc:title>
+          </cc:Agent>
+        </dc:publisher>
+      </cc:Work>
+      <cc:License
+         rdf:about="http://creativecommons.org/licenses/publicdomain/">
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#Reproduction" />
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#Distribution" />
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#DerivativeWorks" />
+      </cc:License>
+    </rdf:RDF>
+  </metadata>
+</svg>

src/index.css

@@ -77,3 +77,11 @@ ol, ul {
   justify-content: center;
   align-items: center;
 }
+
+.icon {
+  opacity: 0.4;
+}
+
+.icon:hover {
+  opacity: 0.6;
+}

src/index.js

@@ -32,6 +32,21 @@ const Images = [
     './black_king.svg',
 ];
 
+const SHUFFLING_ENABLED = 0;
+
+function getAllSettings() {
+  return [SHUFFLING_ENABLED];
+}
+
+function settingText(setting) {
+  switch(setting) {
+    case SHUFFLING_ENABLED:
+      return "Shuffle Back Row";
+    default:
+      return "";
+  }
+}
+
 function range(n) {
   return Array.from(Array(n).keys());
 }
@@ -123,6 +138,7 @@ class Board extends React.Component {
         hand: {
           heldPiece: null,
         },
+        settings: {},
       } : this.originalState();
   }
 
@@ -177,12 +193,12 @@ class Board extends React.Component {
     return "rnbqkbnr".split('').sort(() => Math.random() - 0.5).join('');
   }
 
-  resetWithShuffledBackRow() {
+  shuffledBackRowState() {
     const backRow = this.shuffledBackRow();
     const text = ["B", backRow, "pppppppp",
       "________", "________", "________", "________",
       "PPPPPPPP", backRow.toUpperCase()].join('');
-    this.setState(this.stateFromText(text));
+    return this.stateFromText(text);
   }
 
   textFromState() {
@@ -214,7 +230,12 @@ class Board extends React.Component {
   }
 
   doReset() {
-    this.setState(this.originalState());
+    this.setState(this.getSetting(SHUFFLING_ENABLED) ?
+      this.shuffledBackRowState() :
+      this.originalState());
+    this.setState({
+      showPopup: false,
+    });
   }
 
   originalState() {
@@ -243,6 +264,7 @@ class Board extends React.Component {
         heldPiece: null,
       },
       showPopup: false,
+      settings: {},
     });
   }
 
@@ -614,6 +636,28 @@ class Board extends React.Component {
     });
   }
 
+  setSetting(name, value) {
+    let settings = this.state.settings;
+    settings[name] = value;
+    this.setState({
+      settings
+    });
+  }
+
+  getSetting(name) {
+    return this.state.settings[name];
+  }
+
+  toggleSetting(name) {
+    console.log("toggle " + settingText(name));
+    let settings = this.state.settings;
+    settings[name] = !settings[name];
+    console.log(settings[name]);
+    this.setState({
+      settings: settings,
+    });
+  }
+
   renderPopup() {
     return (this.state.showPopup ?
      <Popup
@@ -621,13 +665,25 @@ class Board extends React.Component {
       closePopup={this.togglePopup.bind(this)}
       body={<div>
 
-         <p>This is a simple implementation of the classic board game. It
+        <p>This is a simple implementation of the classic board game,
-         supports all possible moves, including castling, and <em>en
+        implemented in React. It supports all possible moves, including
-         passant</em>.</p>
+        castling, and <em>en passant</em>.</p>
+
+        {
+          getAllSettings().map(setting => {
+            return (
+              <div>
+              <button onClick={this.toggleSetting.bind(this, setting)}>
+                {
+                  settingText(setting) +
+                  (this.getSetting(setting) ? " On" : " Off")
+                }
+              </button>
+              </div>
+            );
+          })
+        }
 
-         <button onClick={
-           this.resetWithShuffledBackRow.bind(this)
-         }>Shuffled Back Row</button>
         <button onClick={this.doReset.bind(this)}>Reset Game</button>
 
       </div>}
@@ -651,10 +707,12 @@ class Board extends React.Component {
       <div style={{textAlign: `center`,}}>
         <div className="status">
           <h1 style={{display: "inline-block"}}>{status}</h1>
-          <button
+          <img
-            onClick={this.togglePopup.bind(this)}>
+            className="icon"
-            Settings
+            alt="Settings icon: a gear"
-          </button>
+            style={{height: "5vh", float: "right"}}
+            src="./gear.svg" onClick={this.togglePopup.bind(this)}>
+          </img>
         </div>
         {range(8).map(n => this.row(n))}
         {this.renderPopup()}