Caveman Bot
by SuperJedi224
JavaScript
//CavemanBotWithAPointyStick
var input=prompt("").split(",");
function what_me_do(){
if(input.length<2)return "S";
var me=input[0];
var otherguy=input[1];
var mesharp=(me.match(/S/g)||[]).length-(me.match(/P/g)||[]).length;
var othersharp=(otherguy.match(/S/g)||[]).length-(otherguy.match(/P/g)||[]).length;
if(mesharp>=5)return "P";
if(othersharp==0&&mesharp>0)return "P";
if(Math.random()>0.4||othersharp==0)return "S";
if(Math.random()>0.5&&othersharp>0)return "B";
if(mesharp==0)return "S";
return "P"
}
alert(what_me_do());