Created
December 31, 2014 08:02
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jQuery(function($) { | |
var WIDTH = 80; | |
var HEIGHT = WIDTH; | |
var SIZE = 5; | |
var timer = null; | |
var field; | |
var canvas; | |
var generation; | |
var speed; | |
var Generation = function(){ | |
this.$e = $("#generation"); | |
this.g = 0; | |
this.show(); | |
}; | |
Generation.prototype = { | |
increment: function(){ | |
this.g++; | |
}, | |
reset: function(){ | |
this.g = 0; | |
}, | |
show: function() { | |
this.$e.text(this.g); | |
} | |
}; | |
var Speed = function(){ | |
this.$e = $("#speed"); | |
this.s = this.val(); | |
this.show(); | |
}; | |
Speed.prototype = { | |
change: function(){ | |
var s = this.val(); | |
if (this.s === s) { | |
return; | |
} | |
this.s = s; | |
this.show(); | |
if (timer === null) { | |
return; | |
} | |
start(); | |
}, | |
show: function(){ | |
$("#speed_txt").text(this.speed() + "ms"); | |
}, | |
val: function(){ | |
return this.$e.val(); | |
}, | |
speed: function(){ | |
return 25 * this.val(); | |
} | |
}; | |
var Field = function(width, height){ | |
this.width = width; | |
this.height = height; | |
this.field; | |
this.active; | |
this.init(); | |
}; | |
Field.prototype = { | |
init: function(){ | |
this.active = 0; | |
this.field = []; | |
for (var y = 0; y < this.height; y++) { | |
this.field[y] = []; | |
for (var x = 0; x < this.width; x++) { | |
this.set(x, y, null); | |
} | |
} | |
}, | |
randomize: function(){ | |
for (var y = 0; y < this.height; y++) { | |
for (var x = 0; x < this.width; x++) { | |
var val = random(1, 10) == 1 ? 1 : 0; | |
this.set(x, y, val); | |
this.active += this.val(x, y); | |
} | |
} | |
}, | |
reset: function(){ | |
this.active = 0; | |
for (var y = 0; y < this.height; y++) { | |
for (var x = 0; x < this.width; x++) { | |
this.set(x, y, 0); | |
} | |
} | |
}, | |
next: function(){ | |
this.active = 0; | |
var tempField = $.extend(true, {}, this.field); | |
for (var y = 0; y < this.height; y++) { | |
for (var x = 0; x < this.width; x++) { | |
var n = this.neighbor(x, y, tempField); | |
var val = this.fate(tempField[y][x], n); | |
this.set(x, y, val); | |
this.active += this.val(x, y); | |
} | |
} | |
}, | |
neighbor: function(x, y, field) { | |
var n = 0; | |
for (var s = -1; s < 2; s++) { | |
if (y + s < 0 || y + s > this.height - 1) { | |
continue; | |
} | |
for (var t = -1; t < 2; t++) { | |
if (s == 0 && t == 0) { | |
continue; | |
} | |
if (x + t < 0 || x + t > this.width - 1) { | |
continue; | |
} | |
if (field[y + s][x + t] == 1) { | |
n++; | |
} | |
} | |
} | |
return n; | |
}, | |
fate: function(mine, neighbor){ | |
// 生存 | |
if (mine == 1 && (neighbor == 2 || neighbor == 3)) { | |
return 1; | |
} | |
// 誕生 | |
if (mine == 0 && neighbor == 3) { | |
return 1; | |
} | |
// 過疎, 過密 | |
return 0; | |
}, | |
val: function(x, y){ | |
return this.field[y][x]; | |
}, | |
set: function(x, y, v){ | |
this.field[y][x] = v; | |
} | |
}; | |
var Canvas = function(ctx, field, size) { | |
this.ctx = ctx; | |
this.field = field; | |
this.size = size; | |
}; | |
Canvas.prototype = { | |
clear: function(){ | |
this.ctx.clearRect(0, 0, this.field.width * this.size, this.field.height * this.size); | |
}, | |
draw: function() { | |
this.clear(); | |
this.ctx.fillStyle = 'rgb(0, 0, 0)'; | |
for (var y = 0; y < this.field.height; y++) { | |
for (var x = 0; x < this.field.width; x++) { | |
if (this.field.val(x, y) == 0) { | |
continue; | |
} | |
this.ctx.fillRect(x * this.size, y * this.size, this.size, this.size); | |
} | |
} | |
} | |
}; | |
var init = function() { | |
var $canvas = $("#canvas"); | |
var ctx = $canvas.get(0).getContext('2d'); | |
field = new Field(WIDTH, HEIGHT); | |
field.randomize(); | |
canvas = new Canvas(ctx, field, SIZE); | |
generation = new Generation(); | |
speed = new Speed(); | |
bind(); | |
}; | |
var bind = function() { | |
var $e = $("#speed"); | |
$e.mousemove(function(){ | |
speed.change(); | |
}); | |
$e.change(function(){ | |
speed.change(); | |
}); | |
$("#reset").click(reset); | |
$("#start").click(start); | |
$("#stop").click(stop); | |
$("#step").click(step); | |
}; | |
var draw = function() { | |
canvas.draw(); | |
generation.show(); | |
$("#active").text(field.active); | |
}; | |
var lifegame = function() { | |
generation.increment(); | |
field.next(); | |
draw(); | |
} | |
var reset = function() { | |
generation.reset(); | |
field.randomize(); | |
draw(); | |
}; | |
var start = function(){ | |
$("#start").prop("disabled", true); | |
$("#stop").prop("disabled", false); | |
$("#step").prop("disabled", true); | |
if (timer !== null) { | |
clearInterval(timer); | |
} | |
timer = setInterval(lifegame, speed.speed()); | |
}; | |
var stop = function() { | |
$("#start").prop("disabled", false); | |
$("#stop").prop("disabled", true); | |
$("#step").prop("disabled", false); | |
clearInterval(timer); | |
timer = null; | |
}; | |
var step = function() { | |
if (timer !== null) { | |
return; | |
} | |
lifegame(); | |
}; | |
var random = function(min, max) { | |
return min + Math.floor(Math.random() * (max + 1)); | |
}; | |
init(); | |
draw(); | |
}); |
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