火箭降落 | JavaScript 程式專案

{"id":23510,"student_id":71,"content":"setBackdrop('bg.jpg');\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\",\"bomb.png\"]);\n var vy = 0;\n var vx = 0;\nrocket.x = 50;\nrocket.y = 50;\nrocket.direction = 0;\nplatform,x = 500;\nplatform.y = 450;\nvar fuel = 500;\nforever(function() {\n        if(rocket.touched(platform)){\n         stop()   ;\n        }\n    if(fuel\u003e0){\n    if\n    print(fuel,30,30,'red',30);   \n    rocket.x += vx;\n    rocket.y += vy;  \n    vy += 0.06;\n    if(key.up){\n   vy -= 0.1;\n   fuel -= 1;\n}\nif(key.right){\n   vx += 0.1;\n    fuel -= 1;\n}\nif(key.left){\n   vx -= 0.1;\n    fuel -= 1;\n}}\n});\n","created_at":"2018-03-03T18:51:30.676+08:00","updated_at":"2019-11-10T23:41:41.900+08:00","name":"火箭降落","language":"javascript","screenshot":{"url":"https://cdn2.koding.school/uploads/project/screenshot/23510/86b10c2e707c5b6eb2db7872f8b08a17.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":98,"hashid":"36ysdkwk","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}