火箭降落 | JavaScript 程式專案

{"id":26932,"student_id":267,"content":"\nsetBackdrop('bg.jpg');\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\",\"bomb.png\"]);\nvar vx =0 ;\nvar vy =0 ;\nvar fuel = 500;\n\nforever(function() {\n    rocket.y = rocket.y+1;\n    rocket.x = rocket.x +vx\n    rocket.y = rocket.y + vy\n    vy =vy + 0.06\n});\n\nrocket.x = 50;\nrocket.y = 50;\nplatform.x=500;\nplatform.y=400;\nforever(function(){\nprint(fuel,30,30,\"red\",30);\nif (fuel\u003e0){\nif (key.up){\n    vy =vy -1 ;\n    fuel = fuel-1;\n};\n\nif (key.left){\n    vx =vx -1 ;\n    fuel = fuel-1;\n};\nif (key.right){\n    vx =vx +1 ;\n    fuel = fuel-1;\n};\n\n}\n\n});\nforever(function(){\nif(rocket.touched(platform)){\n    stop()\n};\n});\n","created_at":"2018-04-21T13:49:40.809+08:00","updated_at":"2019-06-02T04:14:52.137+08:00","name":"火箭降落","language":"javascript","screenshot":{"url":"https://cdn4.koding.school/uploads/project/screenshot/26932/4dacef229453f008d2ec8e450697f21c.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":177,"hashid":"2pdsrg9q","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}