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  1.  
  2. function LifeGame(){}
  3. LifeGame.prototype.init = function(w,h){
  4. 	this.w=w;
  5. 	this.h=h;
  6. 	this.buf1 = new Array(h);
  7. 	this.buf2 = new Array(h);
  8. 	this.bufS = true;
  9. 	for(var y=0;y<h;y++){
  10. 		this.buf1[y]=new Array(w);
  11. 		this.buf2[y]=new Array(w);
  12. 	}
  13. 	return this;
  14. }
  15. LifeGame.prototype.set = function(a){
  16. 	this.w=0;
  17. 	this.h=a.length;
  18. 	this.buf1 = a;
  19. 	this.buf2 = new Array(a.length);
  20. 	for(var y=0;y<this.h;y++){
  21. 		this.buf2[y] = new Array(a[y].length);
  22. 		this.w = Math.max(this.w, a[y].length);
  23. 	}
  24. 	this.bufS = true;
  25. 	return this;
  26. }
  27. LifeGame.prototype.sum = function(a,x,y){
  28. 	var n=0;
  29. 	for(var y2=-1;y2<=1;y2++){
  30. 		for(var x2=-1;x2<=1;x2++){
  31. 			var ay=(y+y2+a.length)%a.length;
  32. 			var ax=(x+x2+a[ay].length)%a[ay].length;
  33. 			if(!(y2==0 && x2==0) && a[ay][ax]){n++;}
  34. 		}
  35. 	}
  36. 	return n;
  37. };
  38. LifeGame.prototype.upd = function(a,b,x,y){
  39. 	var s = this.sum(a,x,y);
  40. 	var r;
  41. 	if(s<=1){r=0;}
  42. 	else if(s==2){r=a[y][x];}
  43. 	else if(s==3){r=1;}
  44. 	else {r=0;}
  45. 	b[y][x]=r;
  46. };
  47. LifeGame.prototype.life = function(n){
  48. 	if(n){ for(var i=0;i<n;i++){this.life1();} }
  49. 	else{ this.life1(); }
  50. 	return this;
  51. }
  52. LifeGame.prototype.life1 = function(){
  53. 	var a = this.bufS ? this.buf1 : this.buf2;
  54. 	var b = this.bufS ? this.buf2 : this.buf1;
  55. 	this.bufS = !this.bufS;
  56. 	var h=this.h;
  57. 	var w=this.w;
  58. 	for(var y=0;y<h;y++){
  59. 		for(var x=0;x<w;x++){
  60. 			this.upd(a,b,x,y);
  61. 		}
  62. 	}
  63. 	return this;
  64. };
  65. LifeGame.prototype.buf = function(){
  66. 	return this.bufS ? this.buf1 : this.buf2;
  67. };
  68. LifeGame.prototype.rnd = function(){
  69. 	var a = this.buf();
  70. 	for(var y=0;y<this.h;y++){
  71. 		for(var x=0;x<this.w;x++){
  72. 			a[y][x]=Math.random()<0.5?0:1;
  73. 		}
  74. 	}
  75. 	return this;
  76. };
  77. LifeGame.prototype.toString = function(){
  78. 	return this.buf().join("\n");
  79. }
  80.  
  81. if(typeof(console)=="undefined" && typeof(print)!="undefined"){
  82. 	console = new Object();
  83. 	console.log = function(o){print(o);};
  84. 	console.log("use print");
  85. }
  86.  
  87. function test(){
  88. 	var lg = new LifeGame().set([
  89. 		[0,1,1,1,0],
  90. 		[0,1,0,0,0],
  91. 		[0,0,1,0,0],
  92. 		[0,0,0,0,0],
  93. 		[0,0,0,0,0]
  94. 	]);
  95. 	console.log(""+lg);
  96. 	console.log("---------------");
  97. 	lg.life();
  98. 	console.log(""+lg);
  99. 	console.log("---------------");
  100.  
  101. 	var st = new Date();
  102. 	lg.init(500,500).rnd();
  103. 	console.log("create :" + (new Date()-st) + " msec");
  104. 	lg.life(1);
  105. 	console.log("life1:" + (new Date()-st) + " msec");
  106. }
  107.  
  108. test();
  109.  
Success #stdin #stdout 4.11s 5084KB
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stdin
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Standard input is empty
stdout
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use print
0,1,1,1,0
0,1,0,0,0
0,0,1,0,0
0,0,0,0,0
0,0,0,0,0
---------------
0,1,1,0,0
0,1,0,1,0
0,0,0,0,0
0,0,0,0,0
0,0,1,0,0
---------------
create :270 msec
life1:4104 msec
https://ideone.com/xNY9J
language:
JavaScript (SMonkey 60.2.3)
created:
12 years ago
visibility:
secret

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