火箭降落 | JavaScript 程式專案

{"id":14349,"student_id":139,"content":"setBackdrop('bg.jpg');\nvar platform = createSprite({\n    x: 295,\n    y: 414,\n    scale: 1.2, // 1.2倍大\n    costumes: [\"platform.png\"]\n});\nvar rocket = createSprite({\n    x: 35,\n    y: 43,\n    direction: 0,\n    scale: 1.2, // 1.2倍大\n    costumes: [\"rocket.png\",\"bomb.png\"]\n});\nvar vx = 0\nvar fuel= 10000000000000\nvar vy = 0\nforever(function() {\nrocket.x = rocket.x + vx\nrocket.y = rocket.y + vy\nvy = vy + 0.1\nprint(fuel, 30, 30, 'red', 30);\nif (key.up){\nvy = vy - 0.18;\nfuel = fuel - 1\n}\nif (key.right)\nvx = vx + 0.2\n\nif (key.left)\n\nvx = vx -0.2\nrocket.direction = vx*\n\n\nif (rocket.touched(platform)){\nif (vy){\nvy \u003e 0.000001\nrocket.costumeId=1\n}\n\n\n\nstop()\n}\n\n});\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-07-19T12:15:21.860+08:00","name":"火箭降落","language":"javascript","screenshot":{"url":"https://cdn3.koding.school/uploads/project/screenshot/14349/10db3f574d4bdc09b0b33b7832c3d15f.jpg"},"parent_id":10697,"plugin":"var fire = createSprite(\"fire.png\");\nfire.scale = 0.7;\nforever(function() {\n    if(window.rocket \u0026\u0026 window.platform) {\n        fire.x = rocket.x;\n        fire.y = rocket.y;\n        fire.direction = rocket.direction - 180;\n        fire.stepForward(65);\n        fire.direction = rocket.direction;\n        if(window.rocket \u0026\u0026 (key.up || key.left || key.right) \u0026\u0026 window.fuel\u003e0) {\n            fire.hidden = false;\n        } else {\n            fire.hidden = true;\n        }\n        if(rocket.touched(platform)) {\n            // fire.hidden = true;\n        }\n    }\n});","description":"上、左、右推進火箭\n在料用盡前成功火箭降落在平台上。","note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":104,"hashid":"4y3sg55r","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}