local chat_angle = {}
local chat_range = {}
local max_chat_sounds = {}
local sound_num = {}
local freeze = {}
local frozen = {}
local played = {}
local reset_on_leave = {}

--load all the global sounds here first
LoadGlobalSound("audiobank\\globalsounds\\sound1.wav",1)
LoadGlobalSound("audiobank\\globalsounds\\sound2.wav",2)
LoadGlobalSound("audiobank\\globalsounds\\sound3.wav",3)
LoadGlobalSound("audiobank\\globalsounds\\sound4.wav",4)

function ai_conversation_init(e)
max_chat_sounds[e] = 4 --maximum number of sounds to play 
chat_range[e] = 150 --range when to start the conversation
chat_angle[e] = 35 --angle player needs to be facing to start conversation
freeze[e] = 1 --toggle freezing the player in place for the conversation or not
reset_on_leave[e] = 1 --toggle wether the conversation can be replayed if player leaves and comes back

frozen[e] = 0
sound_num[e] = 1 
played[sound_num[e]] = 0
end 

function ai_conversation_main(e)

if GetPlayerDistance(e) <= chat_range[e]*1.5 then 
RotateToPlayer(e)
LookAtPlayer(e)
end 

if PlayerLooking(e,chat_range[e],chat_angle[e]) == 1 then 
if sound_num[e] <= max_chat_sounds[e] then 
if freeze[e] == 1 and frozen[e] == 0 then 
FreezePlayer()
frozen[e] = 1 
end 
if GetGlobalSoundPlaying(sound_num[e]) == 0 and played[sound_num[e]] == 0 then 
PlayGlobalSound(sound_num[e])
played[sound_num[e]] = 1 
elseif GetGlobalSoundPlaying(sound_num[e]) == 0 then 
sound_num[e] = sound_num[e] + 1 
played[sound_num[e]] = 0
end

elseif PlayerLooking(e,chat_range[e]*1.5,chat_angle[e]*1.5) == 1 and freeze[e] == 1 and frozen[e] == 1 then 
UnFreezePlayer()
frozen[e] = 0
end 
elseif reset_on_leave[e] == 1 then 
sound_num[e] = 1 
played[sound_num[e]] = 0
end 

end 

function ai_conversation_exit(e)
LoadGlobalSound("audiobank\\globalsounds\\Ogre.wav",5)
PlayGlobalSound(5)
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