Phyllotaxis | JavaScript 程式專案

{"id":32590,"student_id":888,"content":"","created_at":"2018-06-29T18:43:14.465+08:00","updated_at":"2019-11-10T23:29:07.212+08:00","name":"Phyllotaxis","language":"javascript","screenshot":{"url":null},"parent_id":32589,"plugin":"setBackdrop(\"black\");\n\nvar n = 0; // 計數器\nvar s = 10; // 點與點之間的距離\nvar size = 4; // 球體的大小\nvar deg = 137.1; // 旋轉的角度\nvar points = [];\npen.size = 0;\n\nfunction draw(){\n    var a = n * deg;\n    var r = s * Math.sqrt(n);\n    var x = r * Math.cos(a) + 320;\n    var y = r * Math.sin(a) + 240;\n    points.push({n: n, a: a, x: x, y: y});\n    n++;\n}\n\nforever(function(){\n    for(let point of points) {\n        pen.fillColor = `rgb(${point.a%255},${point.a%255},${point.n%255})`;\n        pen.drawCircle(point.x, point.y, size);\n    }\n    draw();\n});","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":297,"hashid":"882sn386","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}