3_A_F_排球之王_正課_【講解】地心引力和摩擦力副本 | 程式專案

{"id":1023718,"student_id":2589,"content":"import game\n\n\ngame.set_backdrop(\"bg.png\")\nball = game.create_sprite(\"ball.png\")\n\nvx = 10\nvy = 10\n\n\ndef loop():\n    global vx, vy\n\n    ball.x = ball.x + vx\n    ball.y = ball.y + vy\n    vy = vy + 0.33\n\n    if ball.x \u003c 100 and vx \u003c 0:\n        vx = -vx\n\n    if ball.x \u003e 1100 and vx \u003e 0:\n        vx = -vx\n\n    if ball.y \u003c 100 and vy \u003c 0:\n        vy = -vy\n\n    if ball.y \u003e 800 and vy \u003e 0:\n        vy = -vy * 0.7\n        vx = vx * 0.7\n\n\ngame.forever(loop)\n","created_at":"2025-05-29T09:51:20.069+08:00","updated_at":"2025-05-29T09:51:24.615+08:00","name":"3_A_F_排球之王_正課_【講解】地心引力和摩擦力 副本","language":"python","screenshot":{"url":null},"parent_id":1011513,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":49,"hashid":"kdmsww4vd","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}

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