Commit | Line | Data |
---|---|---|
053b0711 BA |
1 | const nChoice = 5,; //fixed for this game\r |
2 | \r | |
3 | // Rewards matrix. Order: rock, lizard, Spock, scissors, paper\r | |
4 | const rewards = Array.from(Array(nChoice)).map( i => { //lines\r | |
5 | return Array.from(Array(nChoice)).map( j => { //columns\r | |
6 | // i against j: gain from i viewpoint\r | |
7 | if (j == (i+1) % nChoice || j == (i+3) % nChoice)\r | |
8 | return 1; //I win :)\r | |
9 | else if ((i+1) % nChoice == j || j == (i+2) % nChoice)\r | |
10 | return -1; //I lose :(\r | |
11 | else\r | |
12 | return 0;\r | |
13 | });\r | |
14 | });\r | |
15 | \r | |
16 | const symbols = [ "Rock", "Lizard", "Spock", "Scissors", "Paper" ];\r | |
17 | \r | |
18 | new Vue({\r | |
19 | el: "#rpsls",\r | |
20 | data: {\r | |
21 | humanMove: -1, //integer in 0...nChoice-1\r | |
22 | nInput: 5, //default\r | |
23 | humanHistory: [ ], //your nInput last moves, stored (oldest first)\r | |
24 | gameState: 0, //total points of the computer\r | |
25 | drawIsLost: false, //normal (or true: draw is considered loss)\r | |
26 | rewards: [ ], //initialized at first human move with new nInput\r | |
27 | weights: [ ], //same as above\r | |
28 | },\r | |
29 | methods: {\r | |
30 | // Called on nInput change\r | |
31 | reinitialize: function() {\r | |
32 | // weights[i][j][k]: output i -- input j/choice k\r | |
33 | this.weights = Array.from(Array(nChoice)).map( i => {\r | |
34 | return Array.from(Array(this.nInput)).map( j => {\r | |
35 | return Array.from(Array(nChoice)).map( k => {\r | |
36 | return 0;\r | |
37 | });\r | |
38 | })\r | |
39 | });\r | |
40 | if (this.humanHistory.length > this.nInput)\r | |
41 | this.humanHistory.splice(this.nInput);\r | |
42 | },\r | |
43 | // Play a move given current data (*after* human move: trigger onChange)\r | |
44 | play: function() {\r | |
45 | let candidates = [ ];\r | |
46 | Array.from(Array(nChoice)).forEach( i => {\r | |
47 | // Sum all weights from an activated input to this output\r | |
48 | let sumWeights = this.weights[i].reduce( (acc,input,j) => {\r | |
49 | if (this.humanHistory.length <= j)\r | |
50 | return 0;\r | |
51 | return input[ this.humanHistory[j] ];\r | |
52 | }, 0 );\r | |
53 | let currentValue = {\r | |
54 | val: sumWeights,\r | |
55 | index: i\r | |
56 | };\r | |
57 | if (candidates.length == 0 || sumWeights > candidates[0].val)\r | |
58 | candidates = [ currentValue ];\r | |
59 | else if (sumWeights == candidates[0].val)\r | |
60 | candidates.push(currentValue);\r | |
61 | });\r | |
62 | // Pick a choice at random in maxValue (total random for first move)\r | |
63 | let randIdx = Math.floor((Math.random() * candidates.length) + 1);\r | |
64 | this.updateGameState(candidates[randIdx]);\r | |
65 | },\r | |
66 | updateGameState: function(move) {\r | |
67 | let reward = rewards[move.val][this.humanMove]; //viewpoint of computer\r | |
68 | this.gameState += reward;\r | |
69 | this.updateWeights(reward, move.index);\r | |
70 | },\r | |
71 | updateWeights: function(reward, index) {\r | |
72 | let delta = Math.sign(reward);\r | |
73 | if (this.drawIsLost && reward == 0)\r | |
74 | delta = -1;\r | |
75 | this.weights[index].forEach( (input,i) => {\r | |
76 | if (i < this.humanHistory.length)\r | |
77 | input[ this.humanHistory[i] ] += delta;\r | |
78 | });\r | |
79 | this.postUpdate();\r | |
80 | },\r | |
81 | // Finalize weights update\r | |
82 | postUpdate: function() {\r | |
83 | // Re-center the weights\r | |
84 | let sumAllWeights = this.weights.reduce( (a,output) => {\r | |
85 | return a + output.reduce( (b,input) => {\r | |
86 | return b + input.reduce( (c,choiceWeight) => {\r | |
87 | return c + choiceWeight;\r | |
88 | }, 0);\r | |
89 | }, 0);\r | |
90 | }, 0);\r | |
91 | let meanWeight = sumAllWeights / (this.nInput * nChoice * nChoice);\r | |
92 | this.weights.forEach( output => {\r | |
93 | output.forEach( input => {\r | |
94 | for (let i=0; i<input.length; i++)\r | |
95 | input[i] -= meanWeight;\r | |
96 | });\r | |
97 | });\r | |
98 | // Update human moves history\r | |
99 | this.humanHistory.push(coup_adversaire);\r | |
100 | this.humanHistory.shift();\r | |
101 | },\r | |
102 | },\r | |
103 | };\r |