迷宮產生器副本 | JavaScript 程式專案

{"id":145510,"student_id":1874,"content":"\n// 挖洞機的 x, y 位置\nvar x = 0;\nvar y = 0;\n\n// 預設起始點被挖掘過\nmaze[0][0].color = 'lightblue';\n\nforever(function(){\n    pen.fillColor = 'red';\n    pen.drawRect(x*width + 1, y*width + 1, width - 2, width - 2);\n    var next=getNeighbors(x,y);\n    if (next.length\u003e0) {\n        var random=Math.floor(Math.random()*next.length);\n        var nextstep=next[random];\n        \n        if (nextstep=='top') {\n            maze[x][y].top=true;\n            maze[x][y-1].bottom=true;\n            y=y-1;\n        }\n        if (nextstep=='bottom') {\n            maze[x][y].bottom=true;\n            maze[x][y+1].top=true;\n            y=y+1;\n        }\n        if (nextstep=='right') {\n            maze[x][y].right=true;\n            maze[x+1][y].left=true;\n            x=x+1;\n        }\n        if (nextstep=='left') {\n            maze[x][y].left=true;\n            maze[x-1][y].right=true;\n            x=x-1;\n        }\n        maze[x][y].color='lightblue';\n    } else {\n        maze[x][y].color='yellow';\n        if (maze[x][y].top==true\u0026\u0026maze[x][y-1].color=='lightblue') {\n            y=y-1;\n        }else if(maze[x][y].bottom\u0026\u0026maze[x][y+1].color=='lightblue'){\n            y=y+1;\n        }else if(maze[x][y].right\u0026\u0026maze[x+1][y].color=='lightblue'){\n            x=x+1;\n        }else if(maze[x][y].left\u0026\u0026maze[x-1][y].color=='lightblue'){\n            x=x-1;\n        }\n    }\n});\n\n// 取得四個方向中可以挖掘的方向\nfunction getNeighbors (x, y) {\n    var arr=[];\n    if (x\u003c31\u0026\u0026maze[x+1][y].color=='white') {\n        arr.push('right');\n    }\n    if (x\u003e0\u0026\u0026maze[x-1][y].color=='white') {\n        arr.push('left');\n    }\n    if (y\u003c23\u0026\u0026maze[x][y+1].color=='white') {\n        arr.push('bottom');\n    }\n    if (y\u003e0\u0026\u0026maze[x][y-1].color=='white') {\n        arr.push('top');\n    }\n    return arr;\n}\n","created_at":"2020-05-02T16:14:02.452+08:00","updated_at":"2021-01-27T09:51:00.565+08:00","name":"迷宮產生器 副本","language":"javascript","screenshot":{"url":"https://cdn0.koding.school/uploads/project/screenshot/145510/ab0a2a6acd89045a68f6a26f8d22a4e3.jpg"},"parent_id":31658,"plugin":"var maze = [];\nvar width = 20;\nvar row = 640/width;\nvar col = 480/width;\n\nfor (var x = 0; x \u003c row; x++) {\n    maze[x] = [];\n    for (var y = 0; y \u003c col; y++) {\n        maze[x][y] = {\n            color: 'white',\n            top: false,\n            right: false,\n            bottom: false,\n            left: false\n        };\n    }\n}\n\nforever(function() {\n    for (var cx = 0; cx \u003c row; cx++) {\n        for (var cy = 0; cy \u003c col; cy++) {\n            \n            var cell = maze[cx][cy];\n            pen.size = 0.001;\n            pen.fillColor = cell.color;\n            pen.drawRect(cx*width, cy*width, width, width);\n            \n            pen.size = 1;\n            var x = cx*width;\n            var y = cy*width;\n            if (!cell.top) pen.drawLine(x, y, x + width, y);\n            if (!cell.right) pen.drawLine(x + width, y, x + width, y + width);\n            if (!cell.bottom) pen.drawLine(x, y + width, x + width, y + width);\n            if (!cell.left) pen.drawLine(x, y + width, x, y);\n        }\n    }\n});","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":114,"hashid":"4y3s8yjg","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}