遺傳演算法副本 | JavaScript 程式專案

{"id":149619,"student_id":1998,"content":"// 可以修改預設密碼來測試\n// setPassword('password');\n\n// 不斷嘗試密碼並將分數高的排在前面，產生下一代的密碼\nvar pwd = \"gummygummy\";\nsetPassword(pwd);\nvar chars = ' abcdefghijklmnopqrstuwvxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';\nvar pops = [];\nfor (var i = 0; i \u003c 20; i++) {\n    var gene = \"\";\n    for (var j = 0; j \u003c pwd.length; j++) {\n        var char = chars[Math.floor(Math.random()*chars.length)];\n        gene += char;\n    }\n    pops.push(gene);\n}\n\nforever(function() {\n    var children = [];\n    pops.sort(function(a, b) {\n        return password(b) - password(a);\n    });\n    for (var i = 0; i \u003c 20; i++) {\n        var child = crossover(pops[0], pops[1]);\n        children.push(child);\n    }\n    pops = children;\n\n});\n// 將兩組密碼進行組合\nfunction crossover (parentA, parentB) {\n    var child = \"\";\n    for (var i = 0; i \u003c parentA.length; i++) {\n        if (Math.random() \u003c 0.6) {\n            child += parentA[i];\n        } else {\n\n            child += parentA[i];\n        }\n    }\n    return child;\n}\n","created_at":"2020-05-16T16:12:19.559+08:00","updated_at":"2020-05-23T16:25:09.387+08:00","name":"遺傳演算法 副本","language":"javascript","screenshot":{"url":"https://cdn9.koding.school/uploads/project/screenshot/149619/89edcce60b8890776f43b51e69f48ea4.jpg"},"parent_id":33940,"plugin":"setBackdrop('hacker1.jpg', 0, 0, 640, 480);\n\nvar game = (function () {\n    \n    var log = [];\n    var key = 'I love Koding very much';\n    var gameOver = false;\n    \n    when('click', function () {\n       if (prompt('請輸入密碼？') == key) {\n            setBackdrop('hacker2.jpg', 0, 0, 640, 480);\n            setTimeout(function() {\n                setBackdrop('hacker3.jpg', 0, 0, 640, 480);\n                stop();\n            }, 1000);\n       }\n    });\n    \n    function password (passwd) {\n        if (gameOver) return;\n        if (passwd == key) gameOver = true;\n        \n        log.unshift(passwd);\n        var count = 0;\n        for (var i = 0; i \u003c key.length; i++) {\n            if (key[i] == passwd[i]) count++;\n        }\n        return count;\n    }\n    \n    function setPassword (passwd) {\n        key = passwd;\n    }\n    \n    forever(function(){\n        for (var i=0; i\u003c14 \u0026\u0026 i\u003clog.length; i++) {\n            print(log[i], 50, 35 + 20*i, log[i] == key ? 'gold' : 'white');\n        }\n    });\n\n    return {\n        password: password,\n        setPassword: setPassword\n    }\n})();\n\nvar password = game.password;\nvar setPassword = game.setPassword;\n","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":36,"hashid":"ej9sze5m","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}