EnglishishNameGenerator.ts

interface INameSource{
	getName():string;
}

class EnglishisNameSource implements INameSource
{
	private prefix:string[]=[];
	private suffix:string[]=[];
	
	private recent:string[] = [];
	private recentSuffix:string[] = [];
	
	private recentNo = 10;
	
	constructor(){
		const both = (s:string) => {
			let a = s.split(' ');
			[].push.apply(this.prefix, a);
			[].push.apply(this.suffix, a);
			};
		const start = (s:string)=>[].push.apply(this.prefix, s.split(' '));
		const end = (s:string)=>[].push.apply(this.suffix, s.split(' '));

		start('saint red green wet dry old white black dark silver gold golden shady hot cold yellow crystal clear')			
		both('church cliff heap tor rise range ridge down up nock port gate mound cross hill castle valley marsh park grove copse timber slough mire moss fen forest sand sea lake river creek rock stone wood field cove')
		end('fell fall town ton landing warf refuge shelter road yard')
		
		this.recentNo = Math.min(this.prefix.length, this.suffix.length)/2 | 0;			
	}
	
	private isCool(pref:string, suff:string):boolean{
		let nomatch = [
			'keco', 'ckco', 'shs', /[b-df-hj-np-tv-z]{4,}/i, /([abcd])(?:\1+)/i
		];
				
		return pref != suff 
			&& this.recent.indexOf(pref)==-1
			&& this.recent.indexOf(suff)==-1
			&& nomatch.every(nm=>(nm instanceof RegExp
				?(pref+suff).search(nm) 
				:(pref+suff).indexOf(nm) )==-1);
	}
		
	getName(){
		const rnd = <T>(a:T[]) => a[(Math.random()*a.length)|0];
		const push = (item:string)=>{
			let a = this.recent;
			if(a.indexOf(item)==-1)
				a.push(item);
				
			if(a.length > this.recentNo)
				a.splice(a.length-this.recentNo, this.recentNo);
		};
		
		while(true){
			let pref = rnd(this.prefix);
			let suff = rnd(this.suffix);
			
			if(this.isCool(pref, suff)){
				
				this.recent.push(pref);
				push(pref)
				push(suff)				
				
				let str = pref + suff;
				return str.charAt(0).toUpperCase() + str.substr(1);
			}
		}
	}
}

function repeat(n:number, callback:()=>any){
	while(n-->0)
		callback();
}

var ns = new EnglishisNameSource();
repeat(40, ()=>document.write(ns.getName() + '<br/>'));