local alert_range = nil
local already_seen = 0
local temp = 0
function security_guard_init(e)
	ai_soldier_state[e] = "patrol"
	ai_soldier_pathindex[e] = -1

end 


function security_guard_main(e)
	EntObjNo = g_Entity[e]['obj']
	if alert_range == nil then 
		alert_range = AIGetEntityViewRange(EntObjNo)/2
	end 
	
	if ai_soldier_state[e] == "patrol" then
		if ai_soldier_pathindex[e] == -1 then
		 ai_soldier_pathindex[e] = -2
		 CharacterControlUnarmed(e)
		 PathIndex = -1
		 PathPointIndex = -1
		 pClosest = 99999
		 for pa = 1, AIGetTotalPaths(), 1 do
			for po = 1 , AIGetPathCountPoints(pa), 1 do
			 pDX = g_Entity[e]['x'] - AIPathGetPointX(pa,po)
			 pDZ = g_Entity[e]['z'] - AIPathGetPointZ(pa,po)
			 pDist = math.sqrt(math.abs(pDX*pDX)+math.abs(pDZ*pDZ))
			 if pDist < pClosest and pDist < 200 then
				pClosest = pDist
				PathIndex = pa
				PathPointIndex = po
			 end
			end -- po
		 end -- pa
		 if PathIndex > -1 then
			ai_soldier_pathindex[e] = PathIndex
			ai_path_point_index[e] = PathPointIndex
			ModulateSpeed(e,1.0)
			SetCharacterToWalk(e)
			ai_path_point_direction[e] = 1
			ai_path_point_max[e] = AIGetPathCountPoints(ai_soldier_pathindex[e])
		 end   
		elseif ai_soldier_pathindex[e] > -1 then 
		 ai_patrol_x[e] = AIPathGetPointX(ai_soldier_pathindex[e],ai_path_point_index[e])
		 ai_patrol_z[e] = AIPathGetPointZ(ai_soldier_pathindex[e],ai_path_point_index[e])
		 AIEntityGoToPosition(EntObjNo,ai_patrol_x[e],ai_patrol_z[e])
		 tDistX = g_Entity[e]['x'] - ai_patrol_x[e]
		 tDistZ = g_Entity[e]['z'] - ai_patrol_z[e]
		 DistFromPath = math.sqrt(math.abs(tDistX*tDistX)+math.abs(tDistZ*tDistZ))	
		 if DistFromPath < 50 then
			if ai_path_point_direction[e] == 1 then
			 ai_path_point_index[e] = ai_path_point_index[e] + 1
			 if ( ai_path_point_index[e] > ai_path_point_max[e] ) then
				ai_path_point_index[e] = ai_path_point_max[e] - 1
				ai_path_point_direction[e] = 0
			 end
			else
			 ai_path_point_index[e] = ai_path_point_index[e] - 1
			 if ( ai_path_point_index[e] < 1 ) then
				ai_path_point_index[e] = 2
				ai_path_point_direction[e] = 1
			 end		
			end
		end
	 else 
		CharacterControlFidget(e)
	 end 
	 
		if (g_Entity[e]['plrvisible'] == 1 or GetPlayerDistance(e) < alert_range) and temp == 0 then
			oldx = g_Entity[e]['x']
			oldz = g_Entity[e]['z']
			FreezePlayer(e)
			ai_soldier_state[e] = "evict"
		elseif g_Entity[e]['plrvisible'] == 0 then 
			temp = 0
		end 
		
	elseif ai_soldier_state[e] == "evict" then 
		if GetPlayerDistance(e) > 120 then 
			AIEntityGoToPosition(EntObjNo,g_PlayerPosX,g_PlayerPosZ)
		else 
			UnFreezePlayer(e)
			if already_seen == 0 and temp == 0 then
				PromptDuration("I'm afraid you need an appointment sir",3000)
				PlaySound(e,0)
				TransportToIfUsed(e)
				already_seen = 1
				temp = 1 
			elseif already_seen == 1 and temp == 0 then 
				PromptDuration("You have been ejected from the building. You might want to try sneaking past the guard.",3000)
				PlaySound(e,0)
				TransportToIfUsed(e)
				temp = 1 
			end 
			AIEntityGoToPosition(EntObjNo,oldx,oldz)
			SetPosition(e,oldx,g_Entity[e]['y'],oldz)
			RotateToPoint(e,ai_patrol_x[e],ai_patrol_z[e])
			ai_soldier_state[e] = "patrol"
			g_Entity[e]['plrvisible'] = 0
		end 
	end 
end 

function RotateToPoint(e,x,z)
if g_Entity[e] ~= nil and x > 0 and z > 0 then
local destx = x - g_Entity[e]['x']
local destz = z - g_Entity[e]['z']
local angle = math.atan2(destx,destz)
angle = angle * (180.0 / math.pi)
if angle < 0 then
angle = 360 + angle
elseif angle > 360 then
angle = angle - 360
end
SetRotation(e,0,angle,0)
return angle
end
end