彩色火花-L3 | JavaScript 程式專案

{"id":10754,"student_id":13,"content":"setBackdrop(\"black\");\n\n// Step 1\nvar lights = [];\n\nforever(function () {\n    // Step 3\n    for (var i = 0; i \u003c 15; i++) {\n        var light = {\n            x: cursor.x,\n            y: cursor.y,\n            color: 'rgb(' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ',' + Math.floor(Math.random() * 255) + ')',\n            vx: Math.random() * 8 - 4,\n            vy: Math.random() * 8 - 4,\n            life: Math.random() * 6\n        }\n        lights.push(light);\n    }\n\n    // Step 2\n    for (var i = 0; i \u003c lights.length; i++) {\n        var light = lights[i];\n        light.x += light.vx;\n        light.y += light.vy;\n        light.vy += 0.1;\n        light.life *= 0.99;\n\n        pen.size = 0;\n        pen.fillColor = light.color;\n        if (light.life \u003e 1) {\n            pen.drawCircle(light.x, light.y, light.life);\n        }\n    }\n\n});\n\n","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-10-16T20:04:03.641+08:00","name":"彩色火花-L3","language":"javascript","screenshot":{"url":"https://cdn3.koding.school/uploads/project/screenshot/10754/89edcce60b8890776f43b51e69f48ea4.jpg"},"parent_id":2,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":240,"hashid":"p93skrw4","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}