local hidden = {}

local hide_delay = 0.4 --how long until the character is fully invisible (effects flash)

local reappear_delay = 2 --how long you need to not be looking at the character for it to reappear

local view_angle = 50 -- if not within this angle of the player's vision then we can reappear?

local view_range = 1500 --maximum view of the player 

local move_speed = 1 --how fast the character will chase the player

local minimum_chase_range = 750 --how close the character can get to the player


hide_delay = hide_delay * 1000 
reappear_delay = reappear_delay * 1000 
function shadow_people_init(e)

hidden[e] = 1 
Hide(e)
CollisionOff(e)
end 


function shadow_people_main(e)
SetEntityHealth(e,100000)
CharacterControlUnarmed(e)
RotateToPoint(e,g_PlayerPosX,g_PlayerPosZ)
if GetPlayerDistance(e) > minimum_chase_range and GetEntityVisibility(e) == 0 then 
ModulateSpeed(e,move_speed)
AIEntityGoToPosition(g_Entity[e]['obj'],g_PlayerPosX,g_PlayerPosZ)
elseif GetPlayerDistance(e) < minimum_chase_range * 0.9 and GetEntityVisibility(e) == 0 then 
ModulateSpeed(e,move_speed*100)
AIEntityGoToPosition(g_Entity[e]['obj'],g_Entity[e]['x'] + (math.sin(AngleToPoint(e,g_PlayerPosX,g_PlayerPosZ)+180) * minimum_chase_range),g_Entity[e]['z'] + (math.cos(AngleToPoint(e,g_PlayerPosX,g_PlayerPosZ)+180) * minimum_chase_range))
else 
AIEntityStop(g_Entity[e]['obj'])
StopAnimation(e)
end
if hidden[e] == 1 then 
if PlayerLooking(e,view_range,view_angle) == 1 then 
StartTimer(e)
else 
if GetTimer(e) > reappear_delay then 
hidden[e] = 0 
Show(e)
end 
end 
elseif hidden[e] == 0 then 
StartTimer(e)
if PlayerLooking(e,view_range,view_angle) == 1 then 
hidden[e] = 2 
end 
elseif hidden[e] > 1 then 
if hide_delay > 0 and hidden[e] < 10 then 
if GetTimer(e) > hide_delay * 0.1 then 
StartTimer(e)
if GetEntityVisibility(e) == 0 then 
Show(e)
else 
Hide(e)
end
hidden[e] = hidden[e] + 1 
end 
else 
StartTimer(e)
Hide(e)
hidden[e] = 1
end 

end --hidden
--Prompt("visible = "..GetEntityVisibility(e).."  time til reappearance = "..(reappear_delay-GetTimer(e)))
if GetPlayerDistance(e) > 1400 then 
Hide(e)
hidden[e] = 1 
end 
end --main(e)


function shadow_people_exit(e)

end 

function AngleToPoint(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

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

function PlayerLooking(e,dis,v)
if g_Entity[e] ~= nil then
if dis == nil then
dis = 3000
end
if v == nil then
v = 0.5
end
if GetPlayerDistance(e) <= dis then
local destx = g_Entity[e]['x'] - g_PlayerPosX
local destz = g_Entity[e]['z'] - g_PlayerPosZ
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
while g_PlayerAngY < 0 or g_PlayerAngY > 360 do
if g_PlayerAngY <= 0 then
g_PlayerAngY = 360 + g_PlayerAngY
elseif g_PlayerAngY > 360 then
g_PlayerAngY = g_PlayerAngY - 360
end
end
local L = angle - v
local R = angle + v
if L <= 0 then
L = 360 + L 
elseif L > 360 then
L = L - 360
end
if R <= 0 then
R = 360 + R
elseif R > 360 then
R = R - 360
end

if (L < R and math.abs(g_PlayerAngY) > L and math.abs(g_PlayerAngY) < R) then
return 1
elseif (L > R and (math.abs(g_PlayerAngY) > L or math.abs(g_PlayerAngY) < R)) then
return 1
else
return 0
end
else
return 0
end
end
end