9x9 數獨產生器 | JavaScript 程式專案

{"id":49660,"student_id":10,"content":"// grid 儲存數獨的資料：\nfunction resolve (grid) {\n    for (var x = 0; x \u003c 9; x++) {\n        for (var y = 0; y \u003c 9; y++) {\n            if (grid[x][y] === 0) {\n                var arr = [];\n\n                for (var i = 0; i \u003c 9; i++) {\n                    arr.push(grid[x][i]);\n                    arr.push(grid[i][y]);\n                }\n\n                var offsetX = Math.floor(x/3);\n                var offsetY = Math.floor(y/3);\n                for (var xx = 0; xx \u003c 3; xx++) {\n                    for (var yy = 0; yy \u003c 3; yy++) {\n                        arr.push(grid[offsetX*3 + xx][offsetY*3 + yy]);\n                    }\n                }\n\n                for (var i = 1; i \u003c= 9; i++) {\n                    if (arr.indexOf(i) === -1) {\n                        grid[x][y] = i;\n                        if (resolve(grid)) return true;\n                        grid[x][y] = 0;\n                    }\n                }\n                return false;\n            }\n        }\n    }\n    return true;\n}\n\n// 重置數獨的資料：\nfunction reset (grid) {\n    for (var x=0; x\u003c9; x++) {\n        for (var y=0; y\u003c9; y++) {\n            grid[x][y] = 0;\n        }   \n    }\n}\n\n// grid 儲存數獨的資料：\nfunction generate (grid) {\n    for (var x = 0; x \u003c 9; x++) {\n        for (var y = 0; y \u003c 9; y++) {\n            if (grid[x][y] === 0) {\n                var arr = [];\n\n                for (var i = 0; i \u003c 9; i++) {\n                    arr.push(grid[x][i]);\n                    arr.push(grid[i][y]);\n                }\n\n                var offsetX = Math.floor(x/3);\n                var offsetY = Math.floor(y/3);\n                for (var xx = 0; xx \u003c 3; xx++) {\n                    for (var yy = 0; yy \u003c 3; yy++) {\n                        arr.push(grid[offsetX*3 + xx][offsetY*3 + yy]);\n                    }\n                }\n                \n                // 這裏不太一樣哦～！ 記得複製過來時遞迴名稱要改為 generate\n                var nums = shuffle();\n                for (var i = 1; i \u003c 9; i++) {\n                    if (arr.indexOf(nums[i]) === -1) {\n                        grid[x][y] = nums[i];\n                        if (generate(grid)) return true;\n                        grid[x][y] = 0;\n                    }\n                }\n                return false;\n            }\n        }\n    }\n    \n    // 執行到這裡時表示全部的格子已經填滿惹\n    // 那就可以來把格子隨機塗掉囉～！\n    var count=0;\n    while (count \u003c 81 - 17) {\n        let x = Math.floor(Math.random()*9)\n        let y = Math.floor(Math.random()*9)\n        if (grid[x][y] !== 0) {\n            grid[x][y] = 0;\n            count++;\n        }\n    }\n    \n    return true;\n}\n\n// 洗牌演算法\nfunction shuffle () {\n    var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9];\n    for (var i=0; i\u003c1000; i++) {\n        var rand1 = Math.floor(Math.random()*9);\n        var rand2 = Math.floor(Math.random()*9);\n        var tmp = arr[rand1];\n        arr[rand1] = arr[rand2];\n        arr[rand2] = tmp;\n    }\n    return arr;\n}\n","created_at":"2018-11-23T20:44:46.630+08:00","updated_at":"2019-11-07T14:30:40.577+08:00","name":"9x9 數獨產生器","language":"javascript","screenshot":{"url":"https://cdn8.koding.school/uploads/project/screenshot/49660/54a80a072cd46d54c20d133e20b640a9.jpg"},"parent_id":47896,"plugin":"setBackdrop('bg.jpg');\n\nlet width = 40;\nlet margin = 10;\nlet offsetX = (640 - 40*9)/2;\nlet offsetY = 20;\nlet solveBtn = createSprite(\"solve_btn.jpg\");\nlet generateBtn = createSprite(\"generate_btn.jpg\");\n\nsolveBtn.y = 440;\ngenerateBtn.y = 440;\n\nsolveBtn.x += 100;\ngenerateBtn.x -= 100;\n\nforever(function() {\n    solveBtn.scale = solveBtn.touched(cursor) ? 1.1: 1;\n    generateBtn.scale = generateBtn.touched(cursor) ? 1.1: 1;\n});\n\nsolveBtn.on('click', ()=\u003e resolve(grid));\ngenerateBtn.on('click', ()=\u003e {\n    reset(grid);\n    generate(grid);\n});\n\n\nlet grid = [\n    [8, 0, 0, 0, 0, 0, 0, 0, 0],\n    [0, 0, 7, 5, 0, 0, 0, 0, 9],\n    [0, 3, 0, 0, 0, 0, 1, 8, 0],\n    [0, 6, 0, 0, 0, 1, 0, 5, 0],\n    [0, 0, 9, 0, 3, 0, 0, 0, 0],\n    [0, 0, 0, 7, 5, 0, 0, 0, 0],\n    [0, 0, 2, 0, 7, 0, 0, 0, 4],\n    [0, 0, 0, 0, 0, 3, 6, 1, 0],\n    [0, 0, 0, 0, 0, 0, 8, 0, 0],\n];\n\n\nforever(function () {\n\n    let colors = [\n        ['', '', '', '', '', '', '', '', ''],\n        ['', '', '', '', '', '', '', '', ''],\n        ['', '', '', '', '', '', '', '', ''],\n        ['', '', '', '', '', '', '', '', ''],\n        ['', '', '', '', '', '', '', '', ''],\n        ['', '', '', '', '', '', '', '', ''],\n        ['', '', '', '', '', '', '', '', ''],\n        ['', '', '', '', '', '', '', '', ''],\n        ['', '', '', '', '', '', '', '', ''],\n    ];\n\n\n    let focusOnX = Math.floor((cursor.x - offsetX)/width);\n    let focusOnY = Math.floor((cursor.y - offsetY)/width);\n    if (focusOnX \u003e= 0 \u0026\u0026 focusOnY \u003e= 0 \u0026\u0026 focusOnX \u003c 9 \u0026\u0026 focusOnY \u003c 9) {\n        colors[focusOnX][focusOnY] = 'yellow';\n    }\n\n    for (var i = 0; i \u003c 9; i++) {\n        if (v_checker(i)) {\n            for (var z = 0; z \u003c 9; z++) colors[i][z] = 'red';\n        }\n        if (h_checker(i)) {\n            for (var z = 0; z \u003c 9; z++) colors[z][i] = 'red';\n        }\n        if (b_checker(i)) {\n            let offsetX = i%3;\n            let offsetY = (i - offsetX)/3;\n            for (let x = 0; x \u003c 3; x++) {\n                for (let y = 0; y \u003c 3; y++) {\n                    colors[offsetX*3 + x][offsetY*3 + y] = 'red';\n                }\n            }\n        }\n    }\n\n    for (let x = 0; x \u003c 9; x++) {\n        for (let y = 0; y \u003c 9; y++) {\n            pen.size = 0;\n            if (colors[x][y] !== '') {\n                pen.fillColor = colors[x][y];\n                pen.drawRect(offsetX + x*width + 2.5, offsetY + y*width + 2.5, width - 5, width - 5);\n            };\n            if (grid[x][y] !== 0) {\n                print(grid[x][y], offsetX + x*width + 2.5 + 8, offsetY + y*width + 2.5, 'black', 30);\n            }\n        }\n    }\n});\n\nwhen('keydown', () =\u003e {\n    let x = Math.floor((cursor.x - offsetX)/width);\n    let y = Math.floor((cursor.y - offsetY)/width);\n    if (x \u003e= 0 \u0026\u0026 y \u003e= 0 \u0026\u0026 x \u003c 9 \u0026\u0026 y \u003c 9) {\n        if (key['1']) grid[x][y] = 1;\n        else if (key['2']) grid[x][y] = 2;\n        else if (key['3']) grid[x][y] = 3;\n        else if (key['4']) grid[x][y] = 4;\n        else if (key['5']) grid[x][y] = 5;\n        else if (key['6']) grid[x][y] = 6;\n        else if (key['7']) grid[x][y] = 7;\n        else if (key['8']) grid[x][y] = 8;\n        else if (key['9']) grid[x][y] = 9;\n        else grid[x][y] = 0;\n    }\n});\n\nfunction v_checker (i) {\n    var arr = [];\n    for (var c = 0; c \u003c 9; c++) {\n        arr.push(grid[i][c]);\n    }\n    return !isValid(arr);\n}\n\nfunction h_checker (i) {\n    var arr = [];\n    for (var c = 0; c \u003c 9; c++) {\n        arr.push(grid[c][i]);\n    }\n    return !isValid(arr);\n}\n\nfunction b_checker (i) {\n    let offsetX = i%3;\n    let offsetY = (i - offsetX)/3;\n    var arr = [];\n    for (let x = 0; x \u003c 3; x++) {\n        for (let y = 0; y \u003c 3; y++) {\n            arr.push(grid[offsetX*3 + x][offsetY*3 + y]);\n        }\n    }\n    return !isValid(arr);\n}\n\n\nfunction isValid (arr) {\n    for (var a = 0; a \u003c arr.length - 1; a++) {\n        for (var b = a+1; b \u003c arr.length; b++) {\n            if (arr[a] == arr[b] \u0026\u0026 arr[a] != '') {\n                return false;\n            }\n        }\n    }\n    return true;\n}","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":305,"hashid":"p93semy2","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}