火箭降落 | JavaScript 程式專案

{"id":14340,"student_id":227,"content":"setBackdrop('bg.jpg');\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\",\"bomb.png\"]);\n\nrocket.direction = 0;\nrocket.x = 50;\n\nrocket.y = 50;\n\nplatform.x = 320;\n\nplatform.y = 470;\n\nvar vy = 0;\n\nvar vx = 0;\n\nvar fuel = 500\nforever(function() {\n    rocket.x = rocket.x + vx;\n\n    rocket.y = rocket.y +vy;\n    \n    vy = vy +0.06;\n    if (fuel \u003e 0){\n          if (key.up) {\n        vy = vy -0.5;\n        fuel = fuel -1\n    }\n    if (key.right) {\n        vx = vx + 0.5\n        fuel = fuel -1\n        rocket.direction = rocket.direction +5\n    }\n    if (key.left) {\n        vx = vx -0.5\n        fuel = fuel -1\n        rocket.direction = rocket.direction-5\n    }\n    }\n  \n    if ( rocket.touched(platform)){\n        if (vx \u003e 0.6 || vy \u003e 0.6 || vy \u003c -0.6) {\n            rocket.costumeId = 1\n        }\n        stop();\n    }\n    \n\n    print(fuel,40)\n\n    print(\"fuel\")\n});\n\n\n\n\n\n\n\n","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-11-08T16:44:13.067+08:00","name":"火箭降落","language":"javascript","screenshot":{"url":"https://cdn3.koding.school/uploads/project/screenshot/14340/1092d61fc9ce362ef5612f5978a95e6f.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":97,"hashid":"36ysmk3q","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}