火箭降落 | JavaScript 程式專案

{"id":7319,"student_id":1407,"content":"var vx = 0;\nvar vy = 0;\nvar fuel = 1000;\nrocket.x = 50\nrocket.y = 50\nplatform.x = 500\nplatform.y = 400\nforever(function(){\n    print(fuel, 30, 30, 'red', 30);\n    if (fuel\u003e0){\n        if (key.up){\n            vy = vy - 0.3;\n            fuel = fuel - 1;\n        }\n        if (key.left){\n            vx = vx - 0.3;\n            fuel = fuel - 1;\n        }\n        if (key.right){\n            vx = vx + 0.3;\n            fuel = fuel - 1;\n        }\n    }\n        \n    \n    rocket.y = rocket.y + vy;\n    vy = vy +0.05;\n    rocket.x = rocket.x + vx;\n    vx = vx +0.01;\n    if (rocket.touched(platform)) {\n        if (vx\u003e-0.5||vy\u003e0.5||vy\u003e0.5){\n            rocket.costumeId = 1;\n            stop();\n        }\n    }\n});\n","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-11-10T01:55:00.639+08:00","name":"火箭降落","language":"javascript","screenshot":{"url":"https://cdn1.koding.school/uploads/project/screenshot/7319/b436f0b952e291ee15d4c154d8c8f226.jpg"},"parent_id":7216,"plugin":"setBackdrop('bg.jpg');\n\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\",\"bomb.png\"]);\nvar fire = createSprite(\"fire.png\");\nfire.scale = 0.7;\nrocket.direction = 0;\n\nforever(function() {\n\tfire.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((key.up || key.left || key.right) \u0026\u0026 fuel\u003e0) {\n    \tfire.hidden = false;\n    } else {\n        fire.hidden = true;\n    }\n    if(rocket.touched(platform)) {\n        fire.hidden = true;\n    }\n});\n\n\n","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":353,"hashid":"882sg92","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}