火箭降落副本 | JavaScript 程式專案

{"id":59727,"student_id":1860,"content":"setBackdrop('bg.jpg');\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\",\"bomb.png\"]);\n    platform.x = 500;\n    platform.y = 450;\n    rocket.x = 100;\n    rocket.y = 100 ;\n    rocket.direction = 0;\nvar fuel=500;\nvar vy=0;\nvar vx=0;\nforever(function() {\n    rocket.x+=vx;\n    rocket.y+=vy;\n    rocket.direction = vx*10;\n    vy += 0.06;\n    rocket.y += vy ;\n    if(fuel\u003e0){\n        if(key.up){\n            vy-=0.1;\n            fuel-=1\n        }\n        if(key.right){\n            vx+=0.1;\n            fuel-=1\n        }\n        if(key.left){\n            vx-=0.1;\n            fuel-=1\n        }\n    }\n    if(rocket.touched(platform)){\n        if(vy\u003e5 || vx\u003e0.6||vx\u003c-0.6){\n            rocket.costumeId=1\n        }\n        stop();\n    }\n    if(rocket.y \u003c 0 || rocket.y \u003e 480 || rocket.x\u003c0 || rocket.x\u003e640){\n        rocket.costumeId=1\n        stop();   \n    }\n    print(\"fuel:\"+fuel,10,10,\"red\",20);\n});\n","created_at":"2019-03-17T13:32:07.646+08:00","updated_at":"2019-11-03T08:34:45.283+08:00","name":"火箭降落 副本","language":"javascript","screenshot":{"url":"https://cdn0.koding.school/uploads/project/screenshot/59727/16463e84961e8abcdf68cc8c571ba9f6.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":90,"hashid":"36ysw44y","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}