1 | "use strict";
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2 |
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3 |
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4 |
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5 |
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6 |
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7 |
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8 | function Keyboard(keyMap) {
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9 | |
10 |
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11 |
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12 |
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13 |
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14 | this.keys = {};
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15 |
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16 | var self = this;
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17 | for (var kc in keyMap) {
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18 | if (keyMap.hasOwnProperty(kc)) {
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19 | this.keys[keyMap[kc]] = 0;
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20 | }
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21 | }
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22 | window.addEventListener("keydown", function(event) {
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23 | if (keyMap.hasOwnProperty(event.keyCode)) {
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24 | if (self.keys[keyMap[event.keyCode]] === 0) {
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25 | self.keys[keyMap[event.keyCode]] = 2;
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26 | }
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27 | return false;
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28 | }
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29 | });
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30 | window.addEventListener("keyup", function(event) {
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31 | if (keyMap.hasOwnProperty(event.keyCode)) {
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32 | self.keys[keyMap[event.keyCode]] = 0;
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33 | return false;
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34 | }
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35 | });
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36 | }
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37 |
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38 |
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39 |
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40 |
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41 |
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42 | Keyboard.prototype.isPressed = function(name) {
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43 | return this.keys[name] >= 1;
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44 | };
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45 |
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46 |
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47 |
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48 |
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49 |
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50 |
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51 | Keyboard.prototype.consumePressed = function(name) {
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52 | var p = this.keys[name] === 2;
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53 | if (p) {
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54 | this.keys[name] = 1;
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55 | }
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56 | return p;
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57 | };
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58 |
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59 | module.exports = Keyboard;
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