火箭降落 | JavaScript 程式專案

{"id":32151,"student_id":1658,"content":"setBackdrop('bg.jpg');\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\",\"bomb.png\"]);\nrocket .x =50 \n rocket .y =50  \nplatform.x=536    \nplatform.y=422 \nrocket.direction=rocket.direction=0\nvar vx=1\nvar vy=1\nvar fuel=500\n\n\nforever(function() {\n if(fuel\u003e0) {  \n  if (key.up) {\nvy=vy-1\nfuel-=1\nprint(fuel,30,30,'red',30)\n\n}    \n\n\n\nif (key.right) {\n    \nvx=vx+1\nfuel-=1\nprint(fuel,30,30,'red',30)\n\n}    \n\n\nif (key.left) {\nvx=vx-1\nfuel-=1\nprint(+fuel,30,30,'red',30)\n\n}  \n    \n    \n }    \n    \n    \n    \nrocket.y += vy; //rocket.y = rocket.y + vy;\nrocket.x+=vx  \n rocket.y+rocket.y+vy   \n vy=vy+0.06\n\n\n\n\n\n\n\n\n\n  if(rocket.to||vx.0.6||vx,-0.6)  \n      \n      \n    stop() \n    \n    \n    \n  }    \n    \n    \n    \n    \n    \n    \n    \n    \n    \n    \n    \n    \n    \n});\n","created_at":"2018-06-23T14:24:15.421+08:00","updated_at":"2019-10-29T12:41:33.994+08:00","name":"火箭降落","language":"javascript","screenshot":{"url":"https://cdn9.koding.school/uploads/project/screenshot/32151/89edcce60b8890776f43b51e69f48ea4.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":102,"hashid":"d5msn35w","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}