生命遊戲（預設版） | JavaScript Programming Project

{"id":165480,"student_id":10,"content":"var active = false; //是否活躍\nvar clock = 0; //計數器\nvar grid = [];  //存放細胞狀態\n\n//初始化二維陣列\nfor (var x = -1; x \u003c 32; x++) {\n    grid[x] = [];\n    for (var y = -1; y \u003c 24; y++) {\n        grid[x][y] = false;\n        grid[x][y] = Math.random() \u003e 0.5; //隨機產生細胞\n    }\n}\n\n//點擊格子設定顏色\non('click', function () {\n    var x = Math.floor(cursor.x/20);\n    var y = Math.floor(cursor.y/20);\n    grid[x][y] = !grid[x][y];\n});\n\n//「按一次」空白鍵更新一回合\n//「按住」空白按鍵不斷更新回合\non('keydown', 'space', update);\n\n//將二維陣列繪製在遊戲場景上\nforever(function () {\n    for (var x = 0; x \u003c 32; x++) {\n        for (var y = 0; y \u003c 24; y++) {\n            pen.color = '#555';\n            pen.fillColor = grid[x][y] ? 'white': 'black';\n            pen.drawRect(x*20, y*20, 20, 20);\n            // var c = countCells(x, y);\n            // drawText(c, x*20, y*20, '#555');\n        }\n    }\n});\n\n//更新細胞狀態\nfunction update () {\n    var newGrid = [];\n    for (var x = 0; x \u003c 32; x++) {\n        newGrid[x] = [];\n        for (var y = 0; y \u003c 24; y++) {\n            newGrid[x][y] = grid[x][y];\n            \n            var c = countCells(x, y);\n            if (grid[x][y] == true) { //如果此格子細胞是活著\n                if (c \u003c 2 || c \u003e 3) newGrid[x][y] = false;\n            } else {\n                if (c == 3) newGrid[x][y] = true;\n            }\n        }\n    }\n    grid = newGrid;\n};\n\n//計算 x, y 格子周圍存活的細胞個數\nfunction countCells (x, y) {\n    var count = 0;\n    if (grid[x-1] \u0026\u0026 grid[x-1][y-1]) count++;\n    if (grid[x+0] \u0026\u0026 grid[x+0][y-1]) count++;\n    if (grid[x+1] \u0026\u0026 grid[x+1][y-1]) count++;\n    if (grid[x-1] \u0026\u0026 grid[x-1][y+0]) count++;\n    if (grid[x+1] \u0026\u0026 grid[x+1][y+0]) count++;\n    if (grid[x-1] \u0026\u0026 grid[x-1][y+1]) count++;\n    if (grid[x+0] \u0026\u0026 grid[x+0][y+1]) count++;\n    if (grid[x+1] \u0026\u0026 grid[x+1][y+1]) count++;\n    return count;\n}\n","created_at":"2020-07-16T10:29:07.803+08:00","updated_at":"2020-08-04T11:56:03.999+08:00","name":"生命遊戲（預設版）","language":"javascript","screenshot":{"url":"/uploads/project/screenshot/165480/21e6626c27f35d2e4691bf8cdc301638.jpg"},"parent_id":2,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":491,"hashid":"jzms52ry","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}