貪食蛇_S 副本 | JavaScript 程式專案

{"id":153313,"student_id":3544,"content":"// 將背景設定為黑色\nsetBackdrop(\"#000000\");\nvar speed=100\nvar head = createSprite(\"head.gif\");\nvar food = createSprite(\"food.gif\");\nfood.x = Math.random()*640;\nfood.y = Math.random() *480;\nvar bodies = [];\nvar clock = 0;\nvar score = 0;\nvar alive = true;\nforever(function() {\n    if (alive == false) {\n        print(\"game over\", 160, 200, \"white\", 60);\n    }\n    clock = clock+1;\n    if (clock%6 == 0 \u0026\u0026 alive == true) {\n        playercontrol();\n        eat();\n        move();\n        die();\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\n    head.stepForward(16+speed;\n}\nfunction playercontrol() {\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    if (key.left \u0026\u0026 head.direction != 90) {\n        head.direction = 270;\n    }\n    if (key.right \u0026\u0026 head.direction != 270) {\n        head.direction = 90;\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        var body = createSprite(\"body.gif\");\n        bodies.push(body);\n        if (score \u003e 3) {\n            head.stepForward += speed\n        }\n    }\n}\nfunction die() {\n    if (head.touched(bodies) || head.x \u003c 0 || head.x \u003e 640 || head.y \u003e 480 || head.y \u003c 0) {\n        alive = false;\n\n    }\n\n\n}","created_at":"2020-05-30T13:31:10.934+08:00","updated_at":"2021-01-16T15:03:42.988+08:00","name":"貪食蛇_S 副本","language":"javascript","screenshot":{"url":"https://cdn3.koding.school/uploads/project/screenshot/153313/89edcce60b8890776f43b51e69f48ea4.jpg"},"parent_id":54317,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":71,"hashid":"d5msek44","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}