彈力球大賽 | JavaScript 程式專案

{"id":28552,"student_id":265,"content":"// 設定背景圖\nsetBackdrop('bg.jpg');\n\n// 創造角色\nvar ball = createSprite(\"ball.png\");\nvar p1 = createSprite(\"orange.jpg\");\nvar p2 = createSprite(\"blue.jpg\");\n\n// 初始化位置\np1.x = 631;\np2.x = 10;\n\nvar score1 = 0;\nvar score2 = 0;\nvar speed = 5;\nball.direction = 45;\nforever(function() {\n\n    ball.stepForward(speed);\n    \n     if (ball.x \u003e 640 || ball.x \u003c 0) {\n            ball.direction=-ball.direction\n    \n    }\n\n    \n    if (ball.touched(p1) || ball.touched(p2)) {\n        ball.direction=-ball.direction;\n\n    }\n\n    if (ball.y \u003c 0 || ball.y \u003e 480) {\n        ball.direction=-ball.direction+180;\n\n    }\n\n    // 讓球反彈\n    if (ball.x \u003e 640) {\n        score2 += 1;\n        ball.x = 320;\n        ball.y = 240;\n        ball.direction = Math.random()*90 + 45;\n    }\n\n    if (ball.x \u003c 0) {\n        //  print(ball.x, 320, 100, '#157df9', 40);\n        score1 += 1;\n        ball.x = 320;\n        ball.y = 240;\n        ball.direction = Math.random()*90 +225;\n    }\n    \n    if (ball.y \u003c 0 || ball.y \u003e 480) {\n        ball.direction =-ball.direction + 180;\n    }\n\n\n    if (key.down) {\n        p1.y = p1.y + 10\n    }\n\n    if (key.up) {\n        p1.y = p1.y - 10\n    }\n\n    if (key.s) {\n        p2.y = p2.y +10\n    }\n\n    if (key.w) {\n        p2.y = p2.y -10\n    }\n\n    if (ball.touched(p1) || ball.touched(p2)) {\n        ball.direction =-ball.direction + Math.random() * 15;\n    }\n    print(score2, 30, 20, '#157df9', 40);\n    print(score1, 580, 20, '#fd7e24', 40);\n});","created_at":"2018-05-12T13:31:32.661+08:00","updated_at":"2019-11-11T19:51:16.839+08:00","name":"彈力球大賽","language":"javascript","screenshot":{"url":"https://cdn7.koding.school/uploads/project/screenshot/28552/231129b046fedf68cf2c10d567ac3196.jpg"},"parent_id":8219,"plugin":"\n","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":164,"hashid":"4y3skg8q","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}