彩色火花 | JavaScript 程式專案

{"id":16946,"student_id":168,"content":"setBackdrop(\"black\");\r\n\r\nvar lights = []\r\n\r\nforever(function(){\r\n    for(var i = 0;i \u003c 5; i++){\r\n        var light = {\r\n            x: cursor.x,\r\n            y: cursor.y,\r\n            color: \"rgb(\"+Math.floor(Math.random()*255)+\",\"+Math.floor(Math.random()*255)+\",\"+Math.floor(Math.random()*255)+\")\",\r\n            vx: Math.random() * 10 - 5,   //移動速度(水平)\r\n            vy: Math.random() * 10 - 10,   //移動速度(垂直)\r\n            r: Math.random() * 12   //點點大小\r\n        }\r\n        lights.push(light)\r\n    }\r\n    for(var i = 0; i \u003c lights.length; i++){\r\n\r\n        var light = lights[i]\r\n        light.x +=  light.vx\r\n        light.y +=  light.vy\r\n        light.vy +=  0.5   //落下速度\r\n        light.r *=  0.99   //縮小速率(持續時間)\r\n\r\n        pen.size = 0\r\n        pen.fillColor = light.color\r\n        if (light.r \u003e 1) {\r\n            pen.drawCircle(light.x,light.y,light.r)\r\n        }\r\n    }\r\n});","created_at":"2017-09-26T12:30:04.593+08:00","updated_at":"2020-07-17T20:33:59.123+08:00","name":"彩色火花","language":"javascript","screenshot":{"url":"https://cdn0.koding.school/uploads/project/screenshot/16946/c6659cd1ccb0a975ca9baab4385ffbc1.jpg"},"parent_id":12399,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":115,"hashid":"6rps94nm","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}