Phyllotaxis | JavaScript 程式專案

{"id":27199,"student_id":2591,"content":"function componentToHex(c) {\n    var hex = c.toString(16);\n    return hex.length == 1 ? \"0\" + hex : hex;\n}\n\nfunction rgbToHex(r, g, b) {\n    return \"#\" + componentToHex(r) + componentToHex(g) + componentToHex(b);\n}\n\nsetBackdrop(\"black\");\nvar n = 0; \nvar c = 8;\nvar pen = pen;\npen.color = \"white\";\n\nvar points = [];\nfunction draw(){\n    var a = n * 137.5;\n    var r = c * Math.sqrt(n);\n    var x = r * Math.cos(a) + 320;\n    var y = r * Math.sin(a) + 240;\n    points.push({n, a, x, y});\n    n++;\n}\n\nforever(function(){\n    for(let point of points) {\n        pen.fillColor = rgbToHex(point.n % 255, point.a % 255, point.n % 255);\n        pen.drawCircle(point.x, point.y, 4);\n    }\n});\n\nsetInterval(function() {\n    draw();\n}, 10);","created_at":"2018-04-27T11:10:40.887+08:00","updated_at":"2019-11-06T18:31:46.649+08:00","name":"Phyllotaxis","language":"javascript","screenshot":{"url":"https://cdn4.koding.school/uploads/project/screenshot/27199/5bac264554e0c5c86e4918e1be4c35e4.jpg"},"parent_id":2,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":101,"hashid":"zpesr9p8","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}