貪食蛇_S 副本 | JavaScript 程式專案

{"id":90339,"student_id":1780,"content":"// 將背景設定為黑色\r\nsetBackdrop(\"#000000\");\r\n// 用 \"head.gif\" 創造一個角色\r\nvar head = createSprite( \"head.gif\" );\r\nhead.x=320;\r\nhead.y-240;\r\nvar food= createSprite( \"food.gif\" );\r\nfood.x=Math.random()*640;\r\nfood.y=Math.random()*480;\r\nvar clock=0;\r\nvar score=0;\r\nvar alive =true;\r\nvar bodies=[];\r\nvar SPEED=6;\r\n\r\nforever(function(){\r\n    // 在這裡的程式碼會不斷執行\r\n   print(bodies.length,10,10,'white')\r\n    clock=clock+1;\r\n    if(clock %6==0 \u0026\u0026alive==true){\r\n    playerControl();\r\n    eat();\r\n    move();\r\n    die();\r\n    }\r\n});\r\n\r\n\r\nfunction eat (){\r\n    if(head.touched(food)){\r\n      food.x=Math.random()*640;\r\n      food.y=Math.random()*480;  \r\n      score=score+1;\r\n      var body =createSprite( \"body.gif\" );\r\n        bodies.push(body);\r\n    }\r\n    \r\n}\r\n\r\n\r\nfunction move (){\r\n    \r\n   if(bodies.length\u003e0){\r\n       \r\n      var lastBody=bodies.pop();\r\n      lastBody.x=head.x;\r\n      lastBody.y=head.y;\r\n      bodies.unshift(lastBody);\r\n   }\r\n\r\n\r\n    head.stepForward(16);\r\n    \r\n}\r\n\r\nfunction   playerControl(){\r\n    \r\n    if(key.up\u0026\u0026 head.direction !=180){\r\n        head.direction=0;\r\n    }\r\n    \r\n    \r\n    if(key.down\u0026\u0026 head.direction !=0){\r\n        head.direction=180;\r\n    }\r\n    \r\n    \r\n    if(key.right \u0026\u0026 head.direction !=270){\r\n        head.direction=90;\r\n    }\r\n    \r\n    \r\n    if(key.left\u0026\u0026 head.direction !=90){\r\n        head.direction=270;\r\n    }\r\n    \r\n    \r\n    \r\n}\r\n\r\nfunction die(){\r\n    \r\n    if(head.touched(bodies)||head.x\u003c0 ||head.x\u003e640 ||head.y\u003e480 ||head.y\u003c0){\r\n        alive=false;\r\n        \r\n    }\r\n}\r\n\r\n// 當按下鍵盤的「右方向鍵」時\r\n//when(\"keydown\", \"right\", function(){\r\n//\thead.direction = 90;\r\n//});","created_at":"2019-08-22T21:26:58.930+08:00","updated_at":"2020-04-11T10:47:00.210+08:00","name":"貪食蛇_S 副本","language":"javascript","screenshot":{"url":"https://cdn1.koding.school/uploads/project/screenshot/90339/3ed67469f569ea216ea05b191d09def1.jpg"},"parent_id":54317,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":127,"hashid":"2pdsw6nk","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}