貪食蛇學生版 | JavaScript 程式專案

{"id":5755,"student_id":98,"content":"// 將背景設定為黑色\nsetBackdrop(\"#000000\");\n// 用 \"head.gif\" 創造一個角色\nvar head = createSprite( \"head.gif\" );\nvar food = createSprite( \"food.gif\" );\nvar bodies =[];\nvar score = 0;\nvar time = 0;\n\n\nforever(function(){\n    // 在這裡的程式碼會不斷執行\n    if ( time%8==0){\n        var lastBody = bodies.pop();  // 將body最後的身體拿出來\n        if (lastBody){              //確定有lastbody\n        \tlastBody.x = head.x;\n            lastBody.y = head.y;\n            bodies.unshift(lastBody);  //把lastbody放到陣列最前面\n        }\n    \thead.stepForward(16);\n        if (head.touched(food) ){\n            score= score +1;\n            food.x = Math.random()*640;\n            food.y = Math.random()*480;\n            var body = createSprite(\"body.gif\");\n            body.x = head.x;\n            body.y = head.y;\n            bodies.push( body );\n        }\n\n        if (head.x\u003c0 || head.x\u003e640 || head.y\u003c0 || head.y\u003e480){\n            print(\"Game Over!\", 160 , 200,\"white\",50);\n            stop();\n        }\n    }\n    time = time+1;\n\tprint(score,20,20,\"white\");\n});\n\n// 當按下鍵盤的「右方向鍵」時\nwhen(\"keydown\",\"left\",function(){\n    head.direction = 270;\n});\nwhen(\"keydown\", \"right\", function(){\n\thead.direction = 90;\n});\nwhen(\"keydown\", \"up\", function(){\n\thead.direction = 0;\n});\nwhen(\"keydown\", \"down\", function(){\n\thead.direction = 180;\n});","created_at":"2017-05-14T23:09:29.975+08:00","updated_at":"2019-09-28T11:31:11.792+08:00","name":"貪食蛇 學生版","language":"javascript","screenshot":{"url":"https://cdn1.koding.school/uploads/project/screenshot/5755/65ad8768e59500dfa0bca0d2b6254004.jpg"},"parent_id":4697,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":121,"hashid":"36ys9mm","is_content_changed":null,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}