貪食蛇_S 副本 | JavaScript 程式專案

{"id":55672,"student_id":1404,"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\");\n    head.x = 320;\n    head.y = 240;\n// 用 \"food.gif\" 創造一個角色\nvar food = createSprite(\"food.gif\");\n    food.x = Math.random()*640;\n    food.y = Math.random()*480;    \nvar clock = 0;\nvar score = 0;\nvar alive = true;\nvar bodies = [];\nvar speed = 6;\n\n\nforever(function(){\n    // 在這裡的程式碼會不斷執行\n    print(bodies.length, 10, 10, 'white')\n    \n    // 使用 clock 變數使迴圈每繞6圈貪食蛇的頭才向前一次\n    clock = clock + 1;\n    if(clock % speed == 0 \u0026\u0026 alive == true){\n        playerControl();\n        eat();\n        move();\n        die();\n    }\n});\n\n\nfunction eat() {\n    if (head.touched(food)) {\n        food.x = Math.random()*640;\n        food.y = Math.random()*480;\n        score = score + 1;\n\n        var body = createSprite(\"body.gif\");\n        bodies.push(body);\n    }\n}\n\nfunction move(){\n    if (bodies.length \u003e 0) {\n        var lastBody = bodies.pop();\n        lastBody.x = head.x;\n        lastBody.y = head.y;\n        bodies.unshift(lastBody);\n    }\n    head.stepForward(16);\n}\n\nfunction playerControl(){\n    if (key.right \u0026\u0026 head.direction != 270) {\n        head.direction = 90;\n    }\n    if (key.left \u0026\u0026 head.direction != 90) {\n        head.direction = 270;\n    }\n    if (key.up \u0026\u0026 head.direction != 180) {\n        head.direction = 0;\n    }\n    if (key.down \u0026\u0026 head.direction != 0) {\n        head.direction = 180;\n    }\n}\n\nfunction die() {\n    if (head.touched(bodies) || head.x \u003c 0 || head.x \u003e 640 || head.y \u003c 0 || head.y \u003e 480) {\n        alive = false;\n    }\n}\n\n\n\n// 當按下鍵盤的「右方向鍵」時\n// when(\"keydown\", \"right\", function(){\n// \thead.direction = 90;\n// });","created_at":"2019-01-28T18:16:40.989+08:00","updated_at":"2019-10-25T18:34:26.781+08:00","name":"貪食蛇_S 副本","language":"javascript","screenshot":{"url":"https://cdn5.koding.school/uploads/project/screenshot/55672/6e7ad3a4d3575e836f7958a8093156b6.jpg"},"parent_id":54317,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":101,"hashid":"jzms6yre","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}