蒙地卡羅求 PI 副本副本 | JavaScript 程式專案

{"id":133456,"student_id":1404,"content":"Game.set({\n    autoRendering: false\n});\npen.size = 0;\npen.fillColor = 'white';\npen.drawRect(0, 0, 420, 380);\n\nvar insideCircle = 0; //圈內米的數量\nvar total = 0 //全部米的數輛（正方形裡米的數量）\nvar pi = 0;\nforever(function() {\n    for (var i = 0; i \u003c 100; i++) {\n        var x = Math.random() * 380;\n        var y = Math.random() * 380;\n        var a = x - 190;\n        var b = y - 190;\n        var c = Math.sqrt(a*a+b*b);\n        if (c \u003c= 190) {\n            pen.fillColor = 'orange';\n            insideCircle++;\n        } else {\n            pen.fillColor = 'blue';\n        }\n        pen.drawRect(x, y, 1, 1);\n        total ++;\n    }\n    pen.fillColor = 'white';\n    pen.drawRect(0, 0, 200, 30);\n    pi = insideCircle * 4 / total;\n    print(\"pi = \"+pi, 10, 20, \"black\", 10);\n})\n\n\n\n\n\n\n\n// var a = 0;\n// var b = 0;\n\n// forever(function(){\n//     for(var i=0; i\u003c100; i++) {\n//         var x = Math.random()*480;\n//         var y = Math.random()*480;\n//         var d = Math.sqrt((x - 240)*(x - 240) + (y - 240)*(y - 240));\n\n//         a++;\n//         if (d \u003c 240) {\n//             pen.fillColor = 'orange';\n//             b++;\n//         } else {\n//             pen.fillColor = 'red';\n//         }\n//         pen.drawRect(x, y, 1, 1);\n//     }\n\n//     pen.fillColor = 'white';\n//     pen.drawRect(0, 0, 200, 35);\n//     print('PI: ' + b*4/a, 10, 10);\n// });","created_at":"2020-03-14T15:59:23.297+08:00","updated_at":"2020-03-14T17:54:56.854+08:00","name":"蒙地卡羅求 PI 副本 副本","language":"javascript","screenshot":{"url":"https://cdn1.koding.school/uploads/project/screenshot/133456/4fb12a42deebd31c1ee9464e394d5ea5.jpg"},"parent_id":122131,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":123,"hashid":"5j3sw4d9","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}