Dijkstra | JavaScript 程式專案

{"id":28900,"student_id":10,"content":"setBackdrop(\"black\");\n\nvar dots = [];\n\nfunction randomDot () {\n    var d = createSprite([\"w.png\", \"o.png\", \"r.png\"]);\n    d.x = Math.random()*600 + 20;\n    d.y =  Math.random()*440 + 20;\n    d.connects = [];\n    dots.push(d);\n}\n\nfor (var i=0; i\u003c20; i++) randomDot();\n\nfunction randomConnect (dots) {\n    var clone = dots.slice(0);\n    while(clone.length \u003e 1) {\n        clone.sort((a, b) =\u003e {\n            return a.distanceTo(clone[0]) - b.distanceTo(clone[0]);\n        });\n        clone[0].connects.push(clone[1]);\n        clone[1].connects.push(clone[0]);\n        clone.shift();\n    }\n    dots.forEach((a) =\u003e {\n        dots.forEach((b) =\u003e {\n            if (a == b) return;\n            if (a.connects.indexOf(b) != -1) return;\n            if (a.distanceTo(b) \u003e 200) return;\n            if (Math.random() \u003c 0.3) {\n                a.connects.push(b);\n                b.connects.push(a);\n            }\n        });    \n    });\n}\n\nrandomConnect(dots);\n\nforever(()=\u003e{\n    dots.forEach((a) =\u003e {\n        a.connects.forEach((b) =\u003e {\n            pen.color = 'white';\n            pen.size = 2;\n            pen.drawLine(a.x, a.y, b.x, b.y);\n        });\n    });\n});","created_at":"2018-05-15T18:17:29.124+08:00","updated_at":"2019-10-26T10:26:53.655+08:00","name":"Dijkstra","language":"javascript","screenshot":{"url":"https://cdn5.koding.school/uploads/project/screenshot/28900/5c2177643ded1af84a7604b57fdb3026.jpg"},"parent_id":2,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":299,"hashid":"5j3sj3z8","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}