彩色火花 | JavaScript 程式專案

{"id":12411,"student_id":1407,"content":"setBackdrop(\"black\");\r\n\r\nvar lights = [];\r\nfor(var i = 0;i\u003c15;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() *8 - 4,\r\n        vy:Math.random() *8 - 4,\r\n        r:Math.random() * 6\r\n    };\r\n    lights.push(light);\r\n};\r\n\r\nforever(function(){\r\n    for(var i=0;i\u003clights.length;i++) {\r\n        var light = lights[i];\r\n        light.x +=light.vx;\r\n        light.y +=light.vy;\r\n        light.vy +=0.1\r\n        light.r *=0.99\r\n        pen.size = 0;\r\n        pen.fillColor = light.color;\r\n        if(light.r\u003e1) {\r\n            pen.drawCircle(light.x,light.y,light.r);\r\n        };\r\n    }\r\n    for(var i = 0;i\u003c15;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() *8 - 4,\r\n            vy:Math.random() *8 - 4,\r\n            r:Math.random() * 6\r\n        };\r\n        lights.push(light);\r\n    };\r\n    \r\n});\r\n\r\n\r\n","created_at":"2017-09-26T12:30:04.593+08:00","updated_at":"2019-11-11T01:36:33.123+08:00","name":"彩色火花","language":"javascript","screenshot":{"url":"https://cdn2.koding.school/uploads/project/screenshot/12411/7182189a6c80f028856545926253f54e.jpg"},"parent_id":12399,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":251,"hashid":"882sq5ny","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}