function TournamentSim(config){

	var self = this;
	self.id = config.id;
	
	// APP
	var app = new PIXI.Application(500, 500, {transparent:true, resolution:2});
	self.dom = app.view;

	// DOM
	self.dom.className = "object";
	self.dom.style.width = 500;
	self.dom.style.height = 500;
	//self.dom.classList.add("fader");
	self.dom.style.left = config.x+"px";
	self.dom.style.top = config.y+"px";
	//self.dom.style.border = "1px solid rgba(0,0,0,0.2)";

	// CREATE A RING OF AGENTS
	var AGENTS = [
		{strategy:"all_c", count:15},
		{strategy:"all_d", count:5},
		{strategy:"grim", count:0},
		{strategy:"tft", count:5},
	];

	var _convertCountToArray = function(countList){
		var array = [];
		for(var i=0; i<AGENTS.length; i++){
			var A = AGENTS[i];
			var strategy = A.strategy;
			var count = A.count;
			for(var j=0; j<count; j++){
				array.push(strategy);
			}
		}
		return array;
	};

	self.agents = [];
	self.connections = [];

	self.networkContainer = new PIXI.Container();
	self.agentsContainer = new PIXI.Container();
	app.stage.addChild(self.networkContainer);
	app.stage.addChild(self.agentsContainer);

	self.populateAgents = function(){

		// Clear EVERYTHING
		self.agentsContainer.removeChildren();
		
		// Convert to an array
		self.agents = _convertCountToArray(AGENTS);

		// Put 'em in a ring
		var count = 0;
		for(var i=0; i<self.agents.length; i++){

			// Angle
			var angle = (i/self.agents.length)*Math.TAU - Math.TAU/4;

			// What kind of agent?
			var strategy = self.agents[i];
			var agent = new TournamentAgent({angle:angle, strategy:strategy, tournament:self});
			self.agentsContainer.addChild(agent.graphics);

			// Remember me!
			self.agents[i] = agent;

		}

		// (sort agents by depth)
		self.sortAgentsByDepth();

	};
	self.sortAgentsByDepth = function(){
		self.agentsContainer.children.sort(function(a,b){
			return a.y - b.y;
		});
	};
	self.populateAgents();

	self.createNetwork = function(){

		// Clear EVERYTHING
		self.connections = [];
		self.networkContainer.removeChildren();
		for(var i=0; i<self.agents.length; i++){
			self.agents[i].clearConnections();
		}
		
		// Connect all of 'em
		for(var i=0; i<self.agents.length; i++){
			var playerA = self.agents[i];
			for(var j=i+1; j<self.agents.length; j++){
				var playerB = self.agents[j];
				var connection = new TournamentConnection({
					from:playerA,
					to:playerB
				});
				self.networkContainer.addChild(connection.graphics);
				self.connections.push(connection);
			}
		}

	};
	self.createNetwork();

	////////////////////////////////////
	// EVOLUTION ///////////////////////
	////////////////////////////////////

	// Play one tournament
	self.agentsSorted = null;
	self.playOneTournament = function(){
		PD.playOneTournament(self.agents, 10);
		self.agentsSorted = self.agents.slice();
		self.agentsSorted.sort(function(a,b){
			if(a.coins==b.coins) return (Math.random()<0.5); // if equal, random
			return a.coins-b.coins; // otherwise, sort as per usual
		});
	};

	// Get rid of X worst
	self.eliminateBottom = function(X){

		// The worst X
		var worst = self.agentsSorted.slice(0,X);

		// For each one, subtract from AGENTS count, and KILL.
		for(var i=0; i<worst.length; i++){
			var badAgent = worst[i];
			var config = AGENTS.find(function(config){
				return config.strategy==badAgent.strategyName;
			});
			config.count--; // remove one
			badAgent.kill(); // KILL
		}

	};
	self.actuallyRemoveAgent = function(agent){
		var index = self.agents.indexOf(agent);
		self.agents.splice(index,1);
	};

	// Reproduce the top X
	self.reproduceTop = function(X){

		// The top X
		var best = self.agentsSorted.slice(self.agentsSorted.length-X, self.agentsSorted.length);

		// For each one, add to AGENTS count
		for(var i=0; i<best.length; i++){
			var goodAgent = best[i];
			var config = AGENTS.find(function(config){
				return config.strategy==goodAgent.strategyName;
			});
			config.count++; // ADD one
		}

		// ADD agents, splicing right AFTER
		for(var i=0; i<best.length; i++){

			// Properties...
			var goodAgent = best[i];
			var angle = goodAgent.angle + 0.1;
			var strategy = goodAgent.strategyName;

			// Create agent!
			var agent = new TournamentAgent({angle:angle, strategy:strategy, tournament:self});
			self.agentsContainer.addChild(agent.graphics);

			// Splice RIGHT AFTER
			var index = self.agents.indexOf(goodAgent);
			self.agents.splice(index, 0, agent);

		}

		// What are the agents' GO-TO angles?
		for(var i=0; i<self.agents.length; i++){
			var agent = self.agents[i];
			var angle = (i/self.agents.length)*Math.TAU - Math.TAU/4;
			agent.gotoAngle = angle;
		}

		// ADD connections
		self.createNetwork();

	};

	// ANIMATE the PLAYING, ELIMINATING, or REPRODUCING
	var STAGE_REST = 0;
	var STAGE_PLAY = 1;
	var STAGE_ELIMINATE = 2;
	var STAGE_REPRODUCE = 3;
	self.STAGE = STAGE_REST;

	self.ALL_AT_ONCE = function(){
		publish("tournament/play");
		setTimeout(function(){ publish("tournament/eliminate"); },500);
		setTimeout(function(){ publish("tournament/reproduce"); },1000);
		setTimeout(self.ALL_AT_ONCE, 1500);
	};
	setTimeout(self.ALL_AT_ONCE, 100);

	// ANIMATE
	var _playIndex = 0;
	var _tweenTimer = 0;
	app.ticker.add(function(delta) {

		// PLAY!
		if(self.STAGE == STAGE_PLAY){
			if(_playIndex>0) self.agents[_playIndex-1].dehighlightConnections();
			if(_playIndex<self.agents.length){
				self.agents[_playIndex].highlightConnections();
				_playIndex++;
			}else{
				self.playOneTournament(); // FOR REAL, NOW.
				_playIndex = 0;
				self.STAGE = STAGE_REST;
			}
		}

		// ELIMINATE!
		if(self.STAGE == STAGE_ELIMINATE){
			self.eliminateBottom(5);
			self.STAGE = STAGE_REST;
		}

		// REPRODUCE!
		if(self.STAGE == STAGE_REPRODUCE){

			// Start
			if(_tweenTimer==0){
				self.reproduceTop(5);
			}

			// Middle...
			for(var i=0;i<self.agents.length;i++){
				var a = self.agents[i];
				a.tweenAngle(_tweenTimer);
				a.updatePosition();
			}
			self.sortAgentsByDepth();
			for(var i=0;i<self.connections.length;i++) self.connections[i].updateGraphics();
			_tweenTimer += 0.05;

			// End
			if(_tweenTimer>=1){
				_tweenTimer = 0;
				self.STAGE = STAGE_REST;
			}

		}

	});

	// PLAY A TOURNAMENT
	self._startPlay = function(){ self.STAGE=STAGE_PLAY; };
	subscribe("tournament/play", self._startPlay);
	self._startEliminate = function(){ self.STAGE=STAGE_ELIMINATE; };
	subscribe("tournament/eliminate", self._startEliminate);
	self._startReproduce = function(){ self.STAGE=STAGE_REPRODUCE; };
	subscribe("tournament/reproduce", self._startReproduce);

	// Add...
	self.add = function(INSTANT){
		return _add(self);
	};

	// Remove...
	self.remove = function(INSTANT){
		return _remove(self);
	};

}

///////////////////////////////////////////////////////
///////////////////////////////////////////////////////
///////////////////////////////////////////////////////

function TournamentConnection(config){

	var self = this;

	// Connect from & to
	self.from = config.from;
	self.to = config.to;
	self.from.connections.push(self);
	self.to.connections.push(self);

	// Graphics!
	var g = new PIXI.Container();
	var gray = PIXI.Sprite.fromImage("assets/connection.png");
	var gold = PIXI.Sprite.fromImage("assets/connection_gold.png");
	gray.height = 1;
	gold.height = 2;
	gray.anchor.y = gold.anchor.y = 0.5;
	g.addChild(gray);
	g.addChild(gold);
	self.graphics = g;

	// Highlight or no?
	self.highlight = function(){
		gray.visible = false;
		gold.visible = true;
	};
	self.dehighlight = function(){
		gray.visible = true;
		gold.visible = false;
	};
	self.dehighlight();

	// Stretch dat bad boy
	self.updateGraphics = function(){
		
		var f = self.from.graphics;
		var t = self.to.graphics;
		var dx = t.x-f.x;
		var dy = t.y-f.y;
		var a = Math.atan2(dy,dx);
		var dist = Math.sqrt(dx*dx+dy*dy);

		g.x = f.x; 
		g.y = f.y;
		g.rotation = a;

		gray.width = gold.width = dist;

	};
	self.updateGraphics();

	// KILL
	self.IS_DEAD = false;
	self.kill = function(){
		if(self.IS_DEAD) return;
		self.IS_DEAD = true;
		self.graphics.parent.removeChild(self.graphics); // remove self's graphics
	};

};

///////////////////////////////////////////////////////
///////////////////////////////////////////////////////
///////////////////////////////////////////////////////

function TournamentAgent(config){

	var self = this;
	self.strategyName = config.strategy;
	self.tournament = config.tournament;
	self.angle = config.angle;
	self.gotoAngle = self.angle;

	// Connections
	self.connections = [];
	self.highlightConnections = function(){
		for(var i=0;i<self.connections.length;i++) self.connections[i].highlight();
	};
	self.dehighlightConnections = function(){
		for(var i=0;i<self.connections.length;i++) self.connections[i].dehighlight();
	};
	self.clearConnections = function(){
		self.connections = [];
	};

	// Number of coins
	self.coins = 0;
	self.addPayoff = function(payoff){
		self.coins += payoff;
		self.updateScore();
	};

	// What's the image?
	var g = new PIXI.Container();
	self.graphics = g;

	// Body!
	var body = PIXI.Sprite.fromImage("assets/"+self.strategyName+".png");
	body.scale.set(0.5);
	if(g.x>250) body.scale.x*=-1;
	body.anchor.x = 0.5;
	body.anchor.y = 0.75;
	g.addChild(body);

	// Score!
	var textStyle = new PIXI.TextStyle({
	    fontFamily: "FuturaHandwritten",
	    fontSize: 16,
	    fill: "#444"
	});
	var scoreText = new PIXI.Text("", textStyle);
	scoreText.anchor.x = 0.5;
	g.addChild(scoreText);
	self.updateScore = function(){
		scoreText.visible = true;
		scoreText.text = self.coins;
	};
	self.updateScore();
	scoreText.visible = false;
	/*subscribe("tournament/play",function(){
		scoreText.visible = false;
	});*/
	subscribe("tournament/reproduce",function(){
		scoreText.visible = false;
	});

	// What's the play logic?
	var LogicClass = window["Logic_"+self.strategyName];
	self.logic = new LogicClass();
	self.play = function(){
		return self.logic.play();
	};
	self.remember = function(other){
		self.logic.remember(other);
	};

	// Reset!
	self.resetCoins = function(){
		self.coins = 0; // reset coins;
		self.updateScore();
	}
	self.resetLogic = function(){
		self.logic = new LogicClass(); // reset logic
	};

	// Tween angle...
	self.tweenAngle = function(t){
		self.angle = self.gotoAngle*t + self.angle*(1-t);
	};
	self.updatePosition = function(){
		g.x = Math.cos(self.angle)*200 + 250;
		g.y = Math.sin(self.angle)*200 + 250;
		scoreText.x = -Math.cos(self.angle)*40;
		scoreText.y = -Math.sin(self.angle)*48 - 22;
	};
	self.updatePosition();

	// KILL
	self.kill = function(){
		
		// KILL ALL CONNECTIONS
		for(var i=0;i<self.connections.length;i++){
			self.connections[i].kill();
		}

		// Tween -- DIE!
		scoreText.visible = false;
		Tween.get(g).to({
			alpha: 0,
			x: g.x+Math.random()*20-10,
			y: g.y+Math.random()*20-10,
			rotation: Math.random()*0.5-0.25
		}, 300, Ease.circOut).call(function(){
			
			// NOW remove graphics.
			self.graphics.parent.removeChild(self.graphics);

			// AND remove self from tournament
			self.tournament.actuallyRemoveAgent(self);

		});

	};

}