貪食蛇_S 副本 | JavaScript 程式專案

{"id":64917,"student_id":1860,"content":"setBackdrop(\"#000000\");\nvar head = createSprite(\"head.gif\");\nhead.x = 320;\nhead.y = 240;\nvar food = createSprite(\"food.gif\");\nfood.x = Math.random()*640;\nfood.y = Math.random()*480;\n\nvar bodies = [];\nvar score = 0;\nvar clock = 0;\nvar speed = 6;\nvar alive = true;\n\nforever(function(){\n    clock = clock + 1;\n    if(clock % 6 == 0 \u0026\u0026 alive == true){\n        playerControl();\n        eat();\n        move();\n        die();\n    }\n    print(score,20,20,\"white\");\n    print(speed,40,40,\"white\");\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}\nfunction playerControl(){\n    if(key.up \u0026\u0026 head.direction != 180){\n        head.direction = 0;  \n    }\n    if(key.right \u0026\u0026 head.direction != 270){\n        head.direction = 90;  \n    }\n    if(key.down \u0026\u0026 head.direction != 0){\n        head.direction = 180;   \n    }\n    if(key.left\u0026\u0026 head.direction != 90){\n        head.direction = -90;   \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        var body = createSprite(\"body.gif\")\n        bodies.push(body);\n        if(score % 3 == 0 \u0026\u0026 speed\u003e0){\n            speed -= 1\n        }\n    }\n}\nfunction die(){\n    if(head.touched(bodies) || head.x \u003c 0 || head.x\u003e640 || head.y\u003c0 || head.y \u003e 480){\n        alive = false\n    }\n}","created_at":"2019-04-28T13:34:39.457+08:00","updated_at":"2019-10-31T01:17:15.864+08:00","name":"貪食蛇_S  副本","language":"javascript","screenshot":{"url":"https://cdn7.koding.school/uploads/project/screenshot/64917/8ba3f136bd046be15b0facaf0c75fe75.jpg"},"parent_id":62770,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":67,"hashid":"d5msgw96","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}