火箭降落 | JavaScript 程式專案

{"id":14337,"student_id":1806,"content":"setBackdrop('bg.jpg');\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\",\"bomb.png\"]);\nvar vy = 0.5;\nvar vx = 1.8;\nvar fuel=500\n\nrocket.x= 50;\nrocket.y= 60;\nplatform.x=550;\nplatform.y=450;\nrocket.direction= 0;\n\nforever(function() {\n    print(fuel,30,30,\"red\",30);\n\n    rockets.y=rockets.y+vy;\n    rockets.x=rockets.x+vx;\n    vy=vy+0.05;\n    if(fuel\u003e0){\n        if(key.up){\n            vy=vy-0.1;\n            fuel=fuel-1;            \n        }\n        if(key.right){\n            vx=vx+0.05;\n            fuel=fuel-1;\n            rocket.direction= rocket.direction+5;\n        }\n        if(key.left){\n            vx=vx-0.05;\n            fuel=fuel-1;\n            rocket.direction= rocket.direction-5;\n        }\n    }\n\n    if(rocket.touched(platform)){\n        if(vy\u003e0.6||vx\u003e 0.6 || vy \u003c -0.6){\n            rocket.costumeId=1;\n        }\n        \n        stop();\n    }\n    if(vx\u003e640){\n            stop();\n        }\n        if(vy\u003e480){\n            stop();\n        }\n})\n\n\n\n\n\n\n\n\n\n","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2022-10-22T11:22:37.211+08:00","name":"火箭降落","language":"javascript","screenshot":{"url":"https://cdn5.koding.school/uploads/project/screenshot/14337/b230fa3bcc0fafe3f75ee57f07ce202f.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":198,"hashid":"d5msvk8j","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}