Gothic 2 Online Small AI monster

// Don't change variables if you don't know what you are doing
local wolf = null;
local warn = 0; // if get 3 warns monster attack hero
local test_npc = null;
local startPosition = null; // variable to calculate first position of monster spawned
local idTimer = null; // timer
local randomnumber = null; // generate random number
local nums = null; // generate random number
local randomObrot = null; // generate random number
local angle = null; // save vector of monster
local x = null; // another timer
local aggressive = false; // if we shot magic/crossbow/bow in high distance so monster are going to try kill us

function spawnWolf()
{
	spawnNpc(wolf);

	setPlayerInstance(wolf, "ZOMBIE01");
	setPlayerPosition(wolf, 180, -91, -1948);
	setPlayerColor(wolf, 255, 0, 0);
	setPlayerStrength(wolf, 200);
	setPlayerHealth(wolf, 1000);
	setPlayerMaxHealth(wolf, 1000);
}

local function Wolf_AI()
{
	if (isPlayerDead(wolf)) return;

	local hPos = getPlayerPosition(heroId);
	local wPos = getPlayerPosition(wolf);

	local dist = getDistance3d(hPos.x, hPos.y, hPos.z, wPos.x, wPos.y, wPos.z);
	local distWolf = getDistance3d(wPos.x, wPos.y, wPos.z, startPosition.x, startPosition.y, startPosition.z);
	nums=rand()%55;

	if ((dist <= 1100 || aggressive == true) && getPlayerHealth(heroId) > 0)
	{
	if(warn < 3 && aggressive == false){
	  setTimerInterval(idTimer,4000);
		angle = getVectorAngle(wPos.x, wPos.z, hPos.x, hPos.z);
		setPlayerAngle(wolf, angle);


	  playAni(wolf,"T_WARN");
	  setPlayerAngle(wolf, getPlayerAngle(wolf));
	  warn++;

     }else if(warn >= 3 || aggressive == true){
		setTimerInterval(idTimer,500);
	 	local angle = getVectorAngle(wPos.x, wPos.z, hPos.x, hPos.z);
		setPlayerAngle(wolf, angle);
		warn++;

		if (dist <= 250)
		{

		if(dist <= 100)playAni(wolf,"T_FISTJUMPB");
		else{

		randomObrot = rand()%10;
		if (randomObrot >= 4 && randomObrot <= 5){playAni(wolf,"T_FISTJUMPB");setTimerInterval(idTimer,800);}
		else if (randomObrot >= 6 && randomObrot <= 7){
		{playAni(wolf,"T_FISTRUNSTRAFEL");setTimerInterval(idTimer,800);}
		}else if (randomObrot >= 8){
		{playAni(wolf,"T_FISTRUNSTRAFEL");setTimerInterval(idTimer,800);}
		}else{

		if(getPlayerAni(heroId) == "S_1HATTACK" || getPlayerAni(heroId) == "T_1HATTACKL" || getPlayerAni(heroId) == "T_1HATTACKR"){
			playAni(wolf,"T_STUMBLEB");
			setTimerInterval(idTimer,3200);
		}else {
			setTimerInterval(idTimer,1800);
			playAni(wolf, "S_FISTATTACK");
			if(getPlayerAni(heroId) == "T_1HPARADEJUMPB" || getPlayerAni(heroId) == "T_1HJUMPB"){
			}else {setTimerInterval(idTimer,1200);hitPlayer(wolf, heroId);}
		}
	   }
	  }
}
		else{
			playAni(wolf, "S_FISTRUNL");}
	}

	if(dist >= 650 && nums == 19){playAni(wolf,"T_WARN");setTimerInterval(idTimer,4500);aggressive=false;}

	}else{
	setTimerInterval(idTimer,500);
	warn=0;
	if(distWolf >= 60){
	  local angles = getVectorAngle(wPos.x, wPos.z, startPosition.x, startPosition.z);
	  setPlayerAngle(wolf, angles);
	  playAni(wolf, "S_FISTRUNL");
	}else{
		setTimerInterval(idTimer,5500);
		playAni(wolf,"S_FISTRUN")
		randomnumber = rand()%3;
		if(randomnumber==0)playAni(wolf,"R_ROAM1");
		else if(randomnumber==1)playAni(wolf,"R_ROAM2");
		else if(randomnumber==2)playAni(wolf,"R_ROAM3");
	}
 }
}

local function hitHandler(kid, pid, dmg)
{
	print (kid + " " + pid + " -> " + dmg);
	if (pid == wolf){
		aggressive = true;
	}
}

addEventHandler("onPlayerHit", hitHandler);

// function delete and spawn monster if we kill it
function SpawnNpcs(){
	print("spawned npc!")
	unspawnNpc(wolf);
	spawnWolf();
	if (x != null){
	killTimer(x);
	}
}

local function deadHandler(pid)
{
	print ("Die: " + pid);

	if (pid == wolf)
	{
		warn = 0;
		playAni(pid,"T_DEADB");
		x = setTimer(SpawnNpcs,12000,0);
		aggressive = false;
	}
	if (pid == heroId){warn=0;aggressive=false;}
}

addEventHandler("onPlayerDead", deadHandler);

local function initHandler()
{
	enableEvent_Render(true);
	// Test NPC
	test_npc = createNpc("Graham");
	spawnNpc(test_npc);
	setPlayerPosition(test_npc, 1310, -90, 332);
	setPlayerAngle(test_npc, 270);
	setPlayerColor(test_npc, 0, 0, 200);
	setPlayerHealth(test_npc, 1000);
	setPlayerMaxHealth(test_npc, 1000);
	setPlayerVisual(test_npc, "Hum_Body_Naked0", 3, "Hum_Head_Psionic", 59);

	equipArmor(test_npc, Items.id("ITAR_VLK_H"));
	playAni(test_npc, "S_HGUARD");

	// Our pet
	wolf = createNpc("Soiref");
	print("Soiref id: " + wolf);
	spawnWolf();
	startPosition = getPlayerPosition(wolf);
	idTimer = setTimer(Wolf_AI, 500, 0);
}

addEventHandler("onInit", initHandler);