彈力球大賽解答 | JavaScript 程式專案

{"id":8261,"student_id":10,"content":"var score_left = 0;\nvar score_right = 0;\nvar speed = 5;\n\nforever(function() {\n    ball.stepForward(speed);\n    if (ball.y \u003c 0 || ball.y \u003e 480) {\n        ball.direction = -ball.direction - 180;\n    }\n    if (ball.touched(p2) || ball.touched(p1)) {\n        ball.direction = -ball.direction + Math.random()*15;\n        speed = speed + 0.5;\n        sound.play('BonusCube.mp3');\n    }\n    if (key.up) {\n        p1.y = p1.y - 10;\n    }\n    if (key.down) {\n        p1.y = p1.y + 10;\n    }\n    if (key.w) {\n        p2.y = p2.y - 10;\n    }\n    if (key.s) {\n        p2.y = p2.y + 10;\n    }\n\n    if (ball.x \u003c 0) {\n        score_right = score_right + 1;\n        ball.direction = 270;\n        ball.x = 320;\n        ball.y = 240;\n        speed = 5;\n    }\n\n    print(score_left, 30, 20, '#157df9', 40);\n    print(score_right, 580, 20, '#fd7e24', 40);\n});\n\n\n\nif (ball.x \u003e 640) {\n    score_left = score_left + 1;\n    ball.direction = 90;\n    ball.x = 320;\n    ball.y = 240;\n    speed = 5;\n}","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2021-04-06T19:34:35.170+08:00","name":"彈力球大賽解答","language":"javascript","screenshot":{"url":"https://cdn8.koding.school/uploads/project/screenshot/8261/e2c06ab00ae065a5a776438f415dcc9c.jpg"},"parent_id":2,"plugin":"setBackdrop('bg.jpg');\nvar ball = createSprite(\"ball.png\");\nvar p2 = createSprite({\n    costumes: \"blue.jpg\",\n    x: 10,\n    y: 250\n});\nvar p1 = createSprite({\n    costumes: \"orange.jpg\",\n    x: 631,\n    y: 250\n});\n// =================================//\n","description":null,"note":null,"status":"public","like_student_ids":[1635],"is_featured":false,"views":414,"hashid":"ej9s3mk","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}