彈力球大賽 | JavaScript 程式專案

{"id":7930,"student_id":10,"content":"","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-11-07T22:46:38.203+08:00","name":"彈力球大賽","language":"javascript","screenshot":{"url":"https://cdn1.koding.school/uploads/project/screenshot/7930/24fce2e6335945e478a4a4154415d89a.jpg"},"parent_id":2,"plugin":"setBackdrop('bg.jpg');\nvar ball = createSprite(\"ball.png\");\nvar player_left = createSprite({\n    costumes: \"blue.jpg\",\n    x: 10,\n    y: 250\n});\nvar player_right = createSprite({\n    costumes: \"orange.jpg\",\n    x: 631,\n    y: 250\n});\nvar score_left = 0;\nvar score_right = 0;\nvar speed = 5;\n// ====\nforever(function() {\n \tball.stepForward(speed);\n    if(ball.y \u003c 0 || ball.y \u003e 480) {\n    \tball.direction = -ball.direction - 180;\n    } \n    if(ball.touched(player_left) || ball.touched(player_right)) {\n    \tball.direction = -ball.direction + Math.random()*15;\n        speed = speed + 0.5;\n        sound.play('BonusCube.mp3');\n    }\n    if(key.up) {\n        player_right.y = player_right.y - 10;\n    }\n    if(key.down) {\n        player_right.y = player_right.y + 10;\n    }\n    if(key.w) {\n        player_left.y = player_left.y - 10;\n    }\n    if(key.s) {\n        player_left.y = player_left.y + 10;\n    }\n    if(ball.x \u003c 0) {\n        score_right = score_right + 1;\n        ball.direction = 270;\n    }\n    if(ball.x \u003e 640) {\n        score_left = score_left + 1;\n        ball.direction = 90;\n    }\n    if(ball.x \u003c 0 || ball.x \u003e 640) {\n        ball.moveTo(320, 240);\n        speed = 5;\n    }\n    print(score_left, 30, 20, '#157df9', 40);\n    print(score_right, 580, 20, '#fd7e24', 40);\n});","description":"右邊玩家：上、下\n左邊玩家：w、s","note":null,"status":"public","like_student_ids":[120,873,109,2349,300,10,4688,1921,2004],"is_featured":false,"views":1483,"hashid":"9ygsm42","is_content_changed":null,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}