貪食蛇_S 副本 | JavaScript Programming Project

{"id":199420,"student_id":12205,"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 score = 0;\nvar clock = 0;\nvar food = createSprite(\"food.gif\");\nfood.x = Math.random()*640;\nfood.y = Math.random()*480;\nvar bodies = [];\nvar alive = true;\nvar speed = 16;\nvar cloock = 0;\n\nforever(function() {\n    if (head.direction == 0 || head.direction == 180) {\n        if (key.right) {\n            head.direction = 90;\n        }\n        if (key.left) {\n            head.direction = -90;\n        }\n    }\n    if (head.direction == 270 || head.direction == 90) {\n        if (key.up) {\n            head.direction = 0;\n        }\n        if (key.down) {\n            head.direction = 180;\n        }\n    }\n    // 在這裡的程式碼會不斷執行\n    clock += 1;\n    if (clock %6 == 0) {\n        eat();\n        move();\n        die();\n\n\n    }\n    print(bodies.length, 10, 10, \"white\");\n    print(speed, 10, 50, );\n\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    }\n    head.stepForward(speed);\n\n}\nfunction eat() {\n    if (head.touched(food)) {\n        food.x = Math.random()*640;\n        food.y = Math.random()*480;\n        score += 1;\n        var body = createSprite(\"body.gif\");\n        bodies.push (body);\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        print(\"game over\", 100, 165, \"red\", 100);\n        stop();\n    }\n}\nfunction score(){\n    if (score\u003e3){\n        speed +=1;\n    }\n    \n    if (score %3 == 0) {\n       speed +=1;\n    }\n}\n// || alive == true\n// 當按下鍵盤的「右方向鍵」時\n//when(\"keydown\", \"right\", function() {\n//  head.direction = 90;\n//});\n//when(\"keydown\", \"left\", function() {\n//  head.direction = -90;\n//});\n//when(\"keydown\", \"up\", function() {\n//  head.direction = 0;\n//});\n//when(\"keydown\", \"down\", function() {\n//  head.direction = 180;\n//});","created_at":"2020-10-30T19:05:51.258+08:00","updated_at":"2020-11-27T20:26:23.208+08:00","name":"貪食蛇_S 副本","language":"javascript","screenshot":{"url":"/uploads/project/screenshot/199420/152538346c907585e59ff436877fdf0f.jpg"},"parent_id":54317,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":176,"hashid":"gk4skg288","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}