1-49 in 60 sec | JavaScript 程式專案

{"id":16627,"student_id":10,"content":"setBackdrop(\"DodgerBlue\");\nvar startTime = Date.now();\nvar btns = [];\nvar index = 1;\nfor (var x=0; x\u003c7; x++) {\n    for (var y=0; y\u003c7; y++) {\n        var btn = createSprite([\"white.png\", \"gold.png\"]);\n        btn.scale = 60/400\n        btn.x = x*60 + 140;\n        btn.y = y*60 + 60;\n        btn.number = x + y*7 + 1;\n        btn.on('click', function () {\n            if (this.number == index) {\n                this.costumeId = 1;\n                index++;\n            }\n        });\n        btns.push(btn);\n    }\n}\n\n// 洗牌\nfor (var i=0; i\u003c100; i++) {\n    var a = Math.floor(Math.random()*49);\n    var b = Math.floor(Math.random()*49);\n    var tmp = btns[a].number;\n    btns[a].number = btns[b].number;\n    btns[b].number = tmp;\n}\n\nforever(function(){\n    for(var i=0; i\u003cbtns.length; i++) {\n        var btn = btns[i];\n        if (btn.number \u003e 9) {\n            print(btn.number, btn.x-10, btn.y-8, '#222', 18);\n        } else {\n            print(btn.number, btn.x-5,  btn.y- 8, '#222', 18);\n        }\n    }\n    var countDown = 60 - Math.floor((Date.now() - startTime)/1000);\n    print(countDown + 's', 10, 10, '#fff', 30);\n    if (countDown \u003c 1) {\n        stop();\n    }\n});","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-11-07T09:39:10.097+08:00","name":"1-49 in 60 sec","language":"javascript","screenshot":{"url":"https://cdn6.koding.school/uploads/project/screenshot/16627/ddba7321072c149178b5f8a063de1c74.jpg"},"parent_id":16085,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[1836],"is_featured":false,"views":391,"hashid":"jzmse8m8","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}