var Game = Class.create();
Game.prototype = {
  
  initialize: function(url) {
    this.commandPrefix=null;
    this.textConsole = new TextConsole($('textconsole'));
    this.textConsole.print("Loading gameboard...");
    new Ajax.Request(url, {
      method: 'get',
      onSuccess: function(response) {
        $('gameboard').innerHTML=' ';
        game.gameboard = new Gameboard(game, response.responseText);
        game.start();
      }
    });
  },

  activeRender: function() {
    this.render();
    this.fluidClicks++;
    if(this.fluidClicks > 16) this.fluidClicks=1;
    window.setTimeout('game.activeRender()', 300);
  },
  
  bindKeyboardEvents: function() {
    Keyboard.bind(document);
    Keyboard.observe('keydown','up',function(){game.playerCommand('up')});
    Keyboard.observe('keydown','down',function(){game.playerCommand('down')});
    Keyboard.observe('keydown','left',function(){game.playerCommand('left')});
    Keyboard.observe('keydown','right',function(){game.playerCommand('right')});
    Keyboard.observe('keydown','a',function(){game.playerCommand('attack')});
    Keyboard.observe('keydown','space',function(){game.playerCommand('pass')});
  },
  
  bringOutYourDead: function() {
    for(c=0;c<this.characters.length;c++) {
      var character=this.characters[c];
      if(character.dead) {
        this.gameboard.unionMatrix[character.y][character.x]=
            this.gameboard.tileMatrix[character.y][character.x];
        this.characters.splice(c,1);
        c--;
      }
    }
  },

  createCharacter: function(type, x, y) {
    var character = new Character();
    character.gameboard=this.gameboard;
    this.gameboard.unionMatrix[y][x]=character;
    character.x=x;
    character.y=y;
    this.characters.push(character);
    character.type=type;
    switch(type) {
      case 'squid':
      case 'nixie':
      case 'seahorse':
      case 'seaserpent': character.walks=false; character.swims=true; break;
    }
    return character;
  },
  
  generateNpc: function(x, y) {
    
    switch(this.gameboard.tileMatrix[y][x]) {
      case 'deepwater':
      case 'shallowwater':
      case 'water': var environment='water'; break;
      default: var environment='land';
    }

    if(this.characters.length < 50) {
      switch(environment) {
        case 'land':
          var type  = 'orc';
          var tiles = 4;
          switch(Dice.roll(1,14)) {
            case 1: type = 'spider'; break;
            case 2: type = 'troll';  break;
            case 3: type = 'beholder'; break;
            case 4: type = 'ogre'; break; 
            case 5: type = 'headless'; break;
            case 6: type = 'ettin'; break;
            case 7: type = 'dragon'; break;
            case 8: type = 'wizard'; break;
            case 9: type = 'skeleton'; break;
            case 10: type = 'balrog'; break;
            case 11: type = 'phantom'; break;
          }
          break;
        case 'water':
          var type  = 'squid';
          var tiles = 2;
          switch(Dice.roll(1,8)) {
            case 1: type = 'nixie'; break;
            case 2: type = 'squid'; break;
            case 3: type = 'seaserpent'; break;
            case 4: type = 'seahorse'; break;
          }
          break;
      }
      var character = this.createCharacter(type, x, y);
      character.mood = 'aggressive';
      character.tiles = [];
      for(var t=1;t<=tiles;t++) {
        character.tiles.push(type+t);
      }
    }
  },
  
  generateNpcs: function() {
    if(Dice.roll(1,10)==1) {
      var xy=this.npcGenerators[Dice.roll(1,this.npcGenerators.length)-1];
      var x=xy[0];
      var y=xy[1];
      if(typeof(this.gameboard.unionMatrix[y][x])=='string') {
        this.generateNpc(x,y);
      }
    }
  },

  generatePlayer: function() {
    this.player = this.createCharacter('player',60,20);
    player = this.player;
    player.hp = 200;
    player.die = function() {
      player.tiles=['corpse'];
      game.flashCount = 666; // hack because of crappy flash algorithm
      game.enabled = false;
      game.textConsole.print("Player DIES!");
    };
    this.player.tiles=['paladin1','paladin2'];
  },
  
  generateWhirlpool: function() {
    whirlpool = this.createCharacter('whirlpool',24,35);
    whirlpool.tiles=['whirlpool1','whirlpool2'];
    whirlpool.swims=true;
    whirlpool.walks=false;
  },
  
  registerNpcGenerators: function() {
    this.npcGenerators = [];
    for(r=0;r<this.gameboard.tileMatrix.length;r++) {
      for(c=0;c<this.gameboard.tileMatrix.length;c++) {
        switch(this.gameboard.tileMatrix[r][c]) {
          case 'dungeon'   : this.npcGenerators.push([c,r]); break;
          case 'deepwater' : if(Dice.roll(1,10)==1){this.npcGenerators.push([c,r])} break;
        }
      }
    }
  },
  
  renderStatus: function() {
    if(this.player.hp > 0) {
      var statusMessage = "Player Health: "+this.player.hp.toString();
    } else {
      var statusMessage = "YOU ARE DEAD - GAME OVER";
      this.gameboard.unionMatrix[this.player.y][this.player.x]='corpse';
      this.gameboard.tileMatrix[this.player.y][this.player.x]='corpse';
    }
    $('header').innerHTML="<h1><a href=\"http://www.brendanbaldwin.com\">Brendan's</a> ULTIMAte DHTML Demo</h1><h2>" + statusMessage + "</h2>";
  },
  
  start: function() {
    this.enabled = true;
    this.queuedCommand = null;
    this.characters = [];
    this.fluidClicks = 0;
    this.flashCount = 0;
    this.generatePlayer();
    this.renderStatus();
    this.generateWhirlpool();
    this.registerNpcGenerators();
    this.bindKeyboardEvents();
    this.activeRender();
    this.textConsole.print("Welcome to Brendan's DHTML Demo, version 0.Alpha");
    this.textConsole.print("You might need to click inside this page for the");
    this.textConsole.print("scripts to pick up on key-presses.  Use your arrow");
    this.textConsole.print("keys to move.  Use the 'A' key, followed by arrow for attack.");
  },

  render: function() {
    if(this.player && this.player.dead) this.gameboard.unionMatrix[this.player.y][this.player.x]='corpse';
    this.gameboard.render(this.player.x-10, this.player.y-6, 21, 13);
  },

  move: function(direction) {
    switch(direction) {
      case 'up'   : this.player.move(0,-1); break;
      case 'down' : this.player.move(0, 1); break;
      case 'left' : this.player.move(-1,0); break;
      case 'right': this.player.move( 1,0); break;
    }
    this.turn();
    this.render();
  },
  
  playerCommand: function(command) {
    if(this.enabled) {
      switch(this.commandPrefix) {
        case 'attack': this.commandPrefix = null;
                       switch(command) {
                         case 'up'   : this.player.attack(0,-1); break;
                         case 'down' : this.player.attack(0, 1); break;
                         case 'left' : this.player.attack(-1,0); break;
                         case 'right': this.player.attack( 1,0); break;
                         default:
                          this.textConsole.print('Nothing');
                       }
                       this.turn();
                       break;
        default: this.commandPrefix = null;
                 switch(command) {
                   case 'pass': this.commandPrefix = null;
                                this.textConsole.print('Pass...');
                                this.turn();
                                break;
                   case 'attack': this.commandPrefix = 'attack'; 
                                  this.textConsole.print('Attack - Direction?');
                                  break;
                   case 'up':     this.textConsole.print('North');
                                  this.move('up');
                                  break;
                   case 'down':   this.textConsole.print('South');
                                  this.move('down');
                                  break;
                   case 'left':   this.textConsole.print('West');
                                  this.move('left');
                                  break;
                   case 'right':  this.textConsole.print('East');
                                  this.move('right');
                                  break;
                 }
      }
    }
    else {
      this.queuedCommand = command;
    }
  },
  
  turn: function() {
    this.gameboard.unionMatrix[player.y][player.x]=this.player;
    for(var c=0;c<this.characters.length;c++) {
      var character=this.characters[c];
      if(character.type != 'player') {
        character[character.mood+'Action']();
      }
    }
    this.generateNpcs();
    this.bringOutYourDead();
    this.renderStatus();
  }

};

var game = new Game('gameboards/world.txt?13');