artificial intelligence - AI in javascript -

i'm developping simple game , i'm trying program ai using javascript.

function ai() { ammotrue = 0; ammofalse = 0;  if (round == 1) {   aiammunition(); }  if (aiammo == "true" && round > 1) {   //or gun or shield   ammotrue = math.floor((math.random() * 2) + 1);    if (ammotrue == 1) {     aishoot();   }   if (ammotrue == 2) {     aiprotect();   } }  if (aiammo == "false" && round > 1) {   //or ammo or shield   ammofalse = math.floor((math.random() * 2) + 1);    if (ammofalse == 1) {     aiammunition();   }   if (ammofalse == 2) {     aiprotect();   } } } 

explanation :
in first round, want function aiammunition() executed. works.
after rounds after first one, want test if aiammo true or false.

if aiammo true, want randomly execute aishoot or aiprotect.

if aiammo false, want randomly execute aiammunition or aiprotect.

i later have reset function resetting aishoot , aiprotect after each round, there can 1 of being true.

in first rounds (like 1 3), code seems work, after that, aishoot , aiprotect seem both true, can read in console (i made clear debug).

here link codepen, can check out : http://codepen.io/ninivert/pen/vlmjql

thanks.