彈力球大賽 | JavaScript 程式專案

{"id":8225,"student_id":104,"content":"var score2 = 0;\nvar score1 = 0;\nvar speed = 5;\n\nball.direction = 90;\n\nforever(function() {\n    ball.stepForward(speed);\n\n    if(key.up){\n        p1.y -= 10;\n    }\n    if(key.down){\n        p1.y += 10;\n    }\n    if(key.w){\n        p2.y -= 10;\n    }\n    if(key.s){\n        p2.y += 10;\n    }\n    //左右邊界\n    if(ball.x \u003e 640 || ball.x \u003c 0){\n        ball.direction = ball.direction * -1;\n    }\n    //上下邊界\n    if(ball.y \u003c 0 || ball.y \u003e 480){\n        ball.direction = ball.direction * -1 + 180;\n    }\n    //碰到 P1、P2 反彈\n    if(ball.touched(p1) || ball.touched(p2)){\n        ball.direction = ball.direction * -1 + Math.random()*15;\n        speed += 0.5;\n        sound.play(\"BonusCube.mp3\")\n    }\n\n    if(ball.x \u003c 0){\n        score1 += 1;\n        ball.x = 320;\n        ball.y = 240;\n        speed = 5;\n        ball.direction = 270;\n    }\n    if(ball.x \u003e 640){\n        score2 += 1;\n        ball.x = 320;\n        ball.y = 240;\n        speed = 5;\n        ball.direction = 90;\n    }\n\n    print(score2, 30, 20, '#157df9', 40);\n    print(score1, 580, 20, '#fd7e24', 40);\n});","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-09-22T07:51:41.233+08:00","name":"彈力球大賽","language":"javascript","screenshot":{"url":"https://cdn7.koding.school/uploads/project/screenshot/8225/b176565de1ace1d04768085c5db65192.jpg"},"parent_id":8219,"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":[],"is_featured":false,"views":334,"hashid":"wdksyj6","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}