var G;
if (parseInt(navigator.appVersion)>3) 
{
	document.onmousedown = mouseDown;
	if (navigator.appName=="Netscape") document.captureEvents(Event.MOUSEDOWN);
}
function Game()
{
	this.gg_name='Сапёр';
	this.gg_version='1.0';
	this.gg_bgcolor='#919191';
	this.gg_field_bgcolor='#C8C8C8';
	this.gg_bgcolor_status='#FFFFA8';
	this.gg_mine_colors = new Array("", "#0000b3", "#00b300", "#b30000", "#f9f900", "#b300b3", "#00b3b3");
	this.gg_img_dir='/games/minesweeper/images/';
	this.gg_cell_size=40;
	this.gg_mines_num= 10;
	this.gg_field_size=9;
	var cur_url = new String(window.location);
	var url_re = /(16)\.html/i;
	if (cur_url.match(url_re)!=null)
	{
		this.gg_field_size = RegExp.$1
		this.gg_mines_num= 35;
		this.gg_img_dir='/games/minesweeper/images-small/';
		this.gg_cell_size=30;
	}
	this.gg_delay=300;
	this.gg_base_url='';
	this.gg_ajaxurl='/games/minesweeper/minesweeper.ajax.php';
	this.gg_ajaxmode = new String;
	this.gu_status='';
	this.gu_game_data='';
	this.gu_mines=0;
	this.gu_time= new String;
	this.gi_time_id = 0;
	this.gi_time_start;
	this.gi_time_int = 0;
	this.gi_x_pos_old=-1;
	this.gi_y_pos_old=-1;
	this.gi_x_pos_new=-1;
	this.gi_y_pos_new=-1;
	this.gi_rclick=false;
	this.gi_game_finished=false;
	this.gi_game_started=false;
	this.gi_around_cells = new Array();
	this.gi_opened = 0;
	this.gi_mines_orig = 0;
	//
	this.gd_btn_captions = new Array('Новая игра', 'Загрузить', 'Сохранить', 'Настройки', 'Правила');
	this.gd_btn_ids = new Array('_gamebuttonnew', '_gamebuttonload', '_gamebuttonsave', '_gamebuttonsettings', '_gamebuttonrules');
	this.gd_btn_act = new Array('newGame()', 'alert(\'отключено\')', 'alert(\'отключено\')', 'displayRadio(G.gg_field_size);winOpen(\'_gameparams\');', '#rules');
	for (var i=0;i<this.gg_field_size;i++)
	{
		for (var j=0;j<this.gg_field_size;j++)
		{
			eval("this.gu_field_"+i+"_"+j+"=0;");
			this.gi_around_cells[this.gg_field_size*i + j] = 0;
		}
	}
	this.gi_img_names = new Array("unknown", "mine", "bomb");
	this.gi_imgs = new Array();
	for (var i=0; i<this.gi_img_names.length; i++)
	{
		this.gi_imgs[i] = new Image(this.gg_cell_size,this.gg_cell_size);
		this.gi_imgs[i].src=this.gg_img_dir+"cell-"+this.gi_img_names[i]+".gif";
	}

	this.getMineNumbers = function getMineNumbers(id)
	{
		return this.mine_numbers[id];
	}

	this.getCell=function getCell(x_pos,y_pos)
	{
		var r;
		eval("r=this.gu_field_"+x_pos+"_"+y_pos+";");
		return Math.floor(r);
	}
	this.setCell=function setCell(x_pos,y_pos,v)
	{
		eval("this.gu_field_"+x_pos+"_"+y_pos+"=v;");
	}
	this.drawField=function drawField()
	{
		var w=this.gg_balls_per_turn+2;
		(this.gg_cell_size*this.gg_balls_per_turn)
		document.writeln('<table border=0 cellspacing=2 cellpadding=0>\n');
		document.writeln('<tr height=40>\n');
		document.writeln('<td colspan=2>');
		document.writeln('<table border=0 cellspacing=0 cellpadding=0 width=100%>\n');
		document.writeln('<td width=50% class=gameheader id=gamemines name=gamemines>Мины:&nbsp;</td>\n');
		document.writeln('<td width=50% class=gameheader id=gametime name=gametime>Время:&nbsp;00:00:00</td>\n');
		document.writeln('</table>\n');
		document.writeln('</td>');
		document.writeln('</tr>\n');
		document.writeln('<tr>\n');
		document.writeln('<td colspan=2 align=center valign=middle>\n');
		document.writeln('<table border=1 bordercolor="#beabbb" cellspacing=0 cellpadding=0 bgcolor='+this.gg_field_bgcolor+'>\n');
		for (var j=0;j<this.gg_field_size;j++)
		{
			document.writeln('<tr>\n');
			for (var i=0;i<this.gg_field_size;i++)
			{
				document.writeln('<td width='+this.gg_cell_size+ ' height='+this.gg_cell_size+ ' align="center" valign="middle"');
				document.writeln(' onClick="javascript:Click('+i+','+j+');" id=cell_'+i+'_'+j+' style="cursor:hand" class="gamefield"><img src="'+this.gg_img_dir+'cell-unknown.gif" width='+this.gg_cell_size+'px height='+this.gg_cell_size+'px border="0" alt=""></td>\n');
			}
			document.writeln('</tr>\n');	
		}
		document.writeln('</table>\n');
		document.writeln('</td>\n');
		document.writeln('</tr>\n');
		document.writeln('<tr>\n');
		document.writeln('<td colspan=2>');
		for (var i=0;i<this.gd_btn_captions.length;i++ )
		{
			if (i<1 || i>2)
			{
				var href='#';
				var onclk = 'javascript:return true';
				if (this.gd_btn_act[i] == "#rules")
				{
					href=this.gd_btn_act[i];
				}
				else
				{
					onclk ='javascript:' + this.gd_btn_act[i] + ';';
				}
				document.writeln('<div id="' + this.gd_btn_ids[i] +'" class="gamebutton"><a href="'+href+'" onClick="' + onclk + ';" onMouseDown="javascript:d_changeButtonState(\'' + this.gd_btn_ids[i] +'\', \'game_button_on\', 1);" onMouseUp="javascript:d_changeButtonState(\'' + this.gd_btn_ids[i] +'\', \'game_button_off\', 0);" onMouseOut="javascript:d_changeButtonState(\'' + this.gd_btn_ids[i] +'\', \'game_button_off\', 0);">' + this.gd_btn_captions[i] +'</a></div>\n');
			}
		}

		document.writeln('</td>\n');
		document.writeln('</tr>\n');
		document.writeln('</table>\n');	
		document.writeln('<table>\n');	
		document.writeln('</table>\n');	

	}
	this.setStatus=function setStatus(s)
	{
		if (document.getElementById('_gamestatus'))
		{
			document.getElementById('_gamestatus').innerHTML=s;
		}
	}
	this.showCell=function showCell(x_pos,y_pos)
	{
		var m=0;
		if (this.getCell(x_pos,y_pos) != 2)
		{
			this.gi_opened++;
			this.setCell(x_pos,y_pos,2);
			var x_start = x_pos - 1;
			if (x_start < 0)
			{
				x_start = 0;
			}
			var x_end = x_pos + 1;
			if (x_end == this.gg_field_size)
			{
				x_end = x_pos;
			}
			var y_start = y_pos - 1;
			if (y_start < 0)
			{
				y_start = 0;
			}
			var y_end = y_pos + 1;
			if (y_end == this.gg_field_size)
			{
				y_end = y_pos;
			}
			for (var j=y_start; j <= y_end; j++)
			{
				for (var i=x_start; i <= x_end; i++)
				{
					if (this.getCell(i, j) == 1 || this.getCell(i, j) == 11)
					{
						m++;
					}
				}
			}
			if (m > 0)
			{
				document.getElementById('cell_'+x_pos+'_'+y_pos).style.color=this.gg_mine_colors[m];
				document.getElementById('cell_'+x_pos+'_'+y_pos).innerHTML=m;
			}
			else
			{
				document.getElementById('cell_'+x_pos+'_'+y_pos).innerHTML='<img src="'+this.gg_img_dir+'cell-transparent.gif" width='+this.gg_cell_size+'px height='+this.gg_cell_size+'px border="0" alt="">';					
			}
		}
		return m;
	}
	this.showCells=function showCells(x_pos,y_pos, t)
	{
		if (this.showCell(x_pos,y_pos) == 0)
		{
			var x = x_pos;
			var y = y_pos;
			this.gi_around_cells[this.gg_field_size*y + x] = t;
			if (x>0 && y>0)
			{
				if (this.gi_around_cells[this.gg_field_size*(y-1) + (x-1)] == 0)
				{
					this.showCells(x-1,y-1,t);
				}
			}
			if (y>0)
			{
				if (this.gi_around_cells[this.gg_field_size*(y-1) + x] == 0)
				{
					this.showCells(x,y-1,t);
				}
			}
			if (y>0 && x < (this.gg_field_size-1))
			{
				if (this.gi_around_cells[this.gg_field_size*(y-1) + (x+1)] == 0)
				{
					this.showCells(x+1,y-1,t);
				}
			}
			if (x > 0)
			{
				if (this.gi_around_cells[this.gg_field_size*y + (x - 1)] == 0)
				{
					this.showCells(x-1,y,t);
				}
			}
			if (x < (this.gg_field_size-1))
			{
				if (this.gi_around_cells[this.gg_field_size*y + (x+1)] == 0)
				{
					this.showCells(x+1,y,t);
				}
			}
			if (x > 0 && y < (this.gg_field_size-1))
			{
				if (this.gi_around_cells[this.gg_field_size*(y+1) + (x-1)] == 0)
				{
					this.showCells(x-1,y+1,t);
				}
			}
			if (y < (this.gg_field_size-1))
			{
				if (this.gi_around_cells[this.gg_field_size*(y+1) + x] == 0)
				{
					this.showCells(x,y+1,t);
				}
			}
			if (x < (this.gg_field_size-1) && y < (this.gg_field_size-1))
			{
				if (this.gi_around_cells[this.gg_field_size*(y+1) + (x+1)] == 0)
				{
					this.showCells(x+1,y+1,t);
				}
			}	
		}
		return t;
	}
	this.openCell=function openCell(x_pos,y_pos)
	{
		var r = true;
		var v=this.getCell(x_pos,y_pos);
		if (v==2)
		{
			this.setStatus("Ячейка уже открыта");
		}
		if (v==1)
		{
				this.gi_game_finished=true;
				for (var i=0;i<this.gg_field_size;i++)
				{
					for (var j=0;j<this.gg_field_size;j++)
					{
						if (this.getCell(j,i) == 1)
						{
							document.getElementById('cell_'+j+'_'+i).innerHTML='<img src="'+this.gg_img_dir+'cell-bomb.gif" width='+this.gg_cell_size+'px height='+this.gg_cell_size+'px border="0" alt="">';
						}
					}
				}
				this.setStatus("В ячейке бомба. Игра завершена.");
		}
		if (v==0)
		{
			var t = new Date();
			t = t.getTime();
			this.showCells(x_pos,y_pos,t);
			for (var y=0;y<this.gg_field_size;y++)
			{
				for (var x=0;x<this.gg_field_size;x++)
				{	
					if (this.gi_around_cells[this.gg_field_size*y + x] == t)
					{
						if (x>0 && y>0)
						{
							if (this.gi_around_cells[this.gg_field_size*(y-1) + (x-1)] == 1)
							{
								this.showCell(x-1,y-1);
							}
						}
						if (y>0)
						{
							if (this.gi_around_cells[this.gg_field_size*(y-1) + x] == 1)
							{
								this.showCell(x,y-1);
							}
						}
						if (y>0 && x < (this.gg_field_size-1))
						{
							if (this.gi_around_cells[this.gg_field_size*(y-1) + (x+1)] == 1)
							{
								this.showCell(x+1,y-1);
							}	
						}
						if (x > 0)
						{
							if (this.gi_around_cells[this.gg_field_size*y + (x - 1)] == 1)
							{
								this.showCell(x-1,y);
							}
						}
						if (x < (this.gg_field_size-1))
						{
							if (this.gi_around_cells[this.gg_field_size*y + (x+1)] == 1)
							{
								this.showCell(x+1,y);
							}
						}
						if (x > 0 && y < (this.gg_field_size-1))
						{
							if (this.gi_around_cells[this.gg_field_size*(y+1) + (x-1)] == 1)
							{
								this.showCell(x-1,y+1);
							}
						}
						if (y < (this.gg_field_size-1))
						{
							if (this.gi_around_cells[this.gg_field_size*(y+1) + x] == 1)
							{
								this.showCell(x,y+1);
							}
						}
						if (x < (this.gg_field_size-1) && y < (this.gg_field_size-1))
						{
							if (this.gi_around_cells[this.gg_field_size*(y+1) + (x+1)] == 1)
							{
								this.showCell(x+1,y+1);
							}
						}	
					}
				}
			}			
		}
		return r;
	}
	this.processClick=function processClick(x_pos,y_pos)
	{
		if (this.gi_game_finished==false)
		{
			if (this.gi_game_started==false)
			{
				this.gi_game_started=true;
				this.setStartTime();
			}
			if (this.gi_rclick) 
			{
				var v = this.getCell(x_pos,y_pos);
				if (v>=10)
				{
					this.gu_mines++;
					this.setCell(x_pos,y_pos,(this.getCell(x_pos,y_pos)-10));
					document.getElementById('cell_'+x_pos+'_'+y_pos).innerHTML='<img src="'+this.gg_img_dir+'cell-unknown.gif" width='+this.gg_cell_size+'px height='+this.gg_cell_size+'px border="0" alt="">';
				}
				else
				{
					if (v != 2)
					{
						this.setCell(x_pos,y_pos,(this.getCell(x_pos,y_pos)+10));
						this.gu_mines--;
						document.getElementById('cell_'+x_pos+'_'+y_pos).innerHTML='<img src="'+this.gg_img_dir+'cell-mine.gif" width='+this.gg_cell_size+'px height='+this.gg_cell_size+'px border="0" alt="">';
					}
				}
				document.getElementById('gamemines').innerHTML='Мины:&nbsp;' + this.gu_mines;
			}
			else this.openCell(x_pos,y_pos);
			if (this.gu_mines == 0 && this.gi_opened == ((this.gg_field_size*this.gg_field_size) - this.gi_mines_orig))
			{
				this.gi_game_finished=true;
				this.gg_ajaxmode="check";
				var s = new String;
				for (var i=0;i<this.gg_field_size;i++)
				{
					for (var j=0;j<this.gg_field_size;j++)
					{
						var v=this.getCell(j,i);
						if (v >= 10)
						{
							v=1;
						}
						else
						{
							v=0;
						}
						s = s.concat(v);
					}
				}
				this.setStatus("Проверка игры...");
				callServer(null, this.gg_ajaxurl+'?check/'+this.gu_game_data+'/'+s, null, null, readData, G);
			}
		}
	}
	this.markAroundCells=function markAroundCells(x_pos,y_pos)
	{
		var v = this.getCell(x_pos, y_pos) ;
		var x_start = x_pos - 1;
		if (x_start < 0)
		{
			x_start = 0;
		}
		var x_end = x_pos + 1;
		if (x_end == this.gg_field_size)
		{
			x_end = x_pos;
		}
		var y_start = y_pos - 1;
		if (y_start < 0)
		{
			y_start = 0;
		}
		var y_end = y_pos + 1;
		if (y_end == this.gg_field_size)
		{
			y_end = y_pos;
		}
		var m=0;
		for (var j=y_start; j <= y_end; j++)
		{
			for (var i=x_start; i <= x_end; i++)
			{
				if (this.gi_around_cells[this.gg_field_size*j + i]==0)
				{
					this.gi_around_cells[this.gg_field_size*j + i] = 1;
				}
			}
		}
		this.gi_around_cells[this.gg_field_size*y_pos + x_pos] = 2;
	}
	this.getDebug=function getDebug()
	{
		var s = new String;
/*		for (var i=0;i<this.gg_field_size;i++)
		{
			for (var j=0;j<this.gg_field_size;j++)
			{
				s = s.concat(this.gi_around_cells[this.gg_field_size*i + j], ' ');
			}
			s = s.concat("\n");
		}*/
		alert(this.gu_mines + ', ' + this.gi_mines_orig + ', ' + this.gi_opened);
	}
	this.loadGame=function loadGame(in_data)
	{
		if (in_data != "")
		{
			var k=0;
			var rs='abcdefghi';
			var rs2='000000000';
			var s=in_data.replace(/j/g,"1");
			for (var i=0; i<(this.gg_field_size*this.gg_field_size); i++) this.gi_around_cells[i]=0;
			for (var i=0; i<rs.length; i++)
			{
				eval("s=s.replace(/"+rs.substr(i,1)+"/g, '"+rs2.substr(0,i+1)+"');");
			}
			for (var i=0;i<this.gg_field_size;i++)
			{
				for (var j=0;j<this.gg_field_size;j++)
				{
					eval("this.gu_field_"+j+"_"+i+"="+s.substr(i*this.gg_field_size+j,1)+";");
					if (s.substr(i*this.gg_field_size+j,1) != "1")
					{
						document.getElementById('cell_'+j+'_'+i).innerHTML='<img src="'+this.gg_img_dir+'cell-unknown.gif" width='+this.gg_cell_size+'px height='+this.gg_cell_size+'px border="0" alt="">';
					}
					else
					{
						document.getElementById('cell_'+j+'_'+i).innerHTML='<img src="'+this.gg_img_dir+'cell-unknown.gif" width='+this.gg_cell_size+'px height='+this.gg_cell_size+'px border="0" alt="">';
						this.markAroundCells(j, i);
						k++;
					}
				}
			}
			this.setStatus("Игра загружена.");
			this.gu_game_data=in_data;
			this.gi_game_started=false;
			this.gi_game_finished=false;
			this.gi_opened=0;
			document.getElementById('gametime').innerHTML="Время:&nbsp;00:00:00";
			this.gu_mines=k;
			this.gi_mines_orig=k;
			document.getElementById('gamemines').innerHTML="Мины:&nbsp;" + this.gu_mines;
		}
		else
		{
			this.setStatus("Ошибка данных.");
		}
	}
	this.updateTime=function updateTime()
	{
		if (this.gi_game_finished==false && this.gi_game_started==true)
		{		
			var st = new Array();
			var t = new Date();
			var d = Math.floor((t.getTime() - this.gi_time_start)/1000);
			if (d < 0)
			{
				d = Math.floor(this.gi_time_int/3);
			}
			var ta = new Array(0,0,0);
			var tac = new Array(3600,60,1);
			var time_out = new String;
			for (var i = 0; i < ta.length; i++)
			{
				ta[i] = Math.floor(d/tac[i]);
				d = d - tac[i]*ta[i];
				z = new String(":");
				if (i == 0)
				{
					z = "";
				}
				if (ta[i] < 10)
				{
					z = z.concat("0");
				}
				time_out = time_out.concat(z,ta[i]);
			}
			document.getElementById('gametime').innerHTML="Время:&nbsp;" +time_out;
			this.gu_time = time_out;
			this.gi_time_int++;
		}
	}
	this.setStartTime=function setStartTime()
	{
		this.gi_time_start = new Date();
		this.gi_time_start = this.gi_time_start.getTime();
		if (this.gi_time_id == 0)
		{
			this.gi_time_id = setInterval("G.updateTime()",300);
		}
	}
} 

function startGame()
{
	G=new Game();
	var win_width = (G.gg_field_size*G.gg_cell_size);
	document.getElementById('_gamearea').style.width = win_width + 'px' ;
	G.drawField();
	newGame();
}

function newGame()
{
	G.setStatus("Загружается новая игра...");
	G.gg_ajaxmode = "new";
	callServer(null, G.gg_ajaxurl+'?new/'+G.gg_field_size+'/'+G.gg_mines_num, null, null, readData, G);
}

function ConfigureGame(input_data)
{
	G.gg_mines_num = input_data;
}

function readData(obj, responseText, responseXML, statusCode, statusText) {
	if (statusCode==200 || statusCode==201) {
		response = responseXML.documentElement;  
		if (G.gg_ajaxmode == "new")
		{
			obj.loadGame(responseXML.getElementsByTagName('data')[0].firstChild.data);
		}
		if (G.gg_ajaxmode == "check")		{
			r = new String(responseXML.getElementsByTagName('data')[0].firstChild.data);
			if (r == '1')
			{
				alert('Поздравляем! Игра завершена за ' + G.gu_time + '.');
			}
			else
			{
				alert('Мины определены неверно.');		
			}
			G.setStatus("Игра завершена.");
		}
	}
	else {
		obj.setStatus("Загрузить информацию не удалось: "+statusText+'('+statusCode+')');
	}
}

function Click(x_pos,y_pos)
{
	G.processClick(x_pos,y_pos);
}

function mouseDown(e)
{
	var shiftPressed=0;
	G.gi_rclick=false;
	if (parseInt(navigator.appVersion)>3) 
	{
		var evt = navigator.appName=="Netscape" ? e:event;
		if (navigator.appName=="Netscape" && parseInt(navigator.appVersion)==4) 
		{
			var mString =(e.modifiers+32).toString(2).substring(3,6);
			shiftPressed=(mString.charAt(0)=="1");
		}
		else 
		{
			shiftPressed=evt.shiftKey;
		}
		if (shiftPressed) 
		{
			G.gi_rclick=true;
		}
	}
	return true;
}