Help with NPC Relationships

[austinn2003]

Hello, I'm developing new gamemode that is inspired by Splinter Cell: Chaos Theory. So I am a fairly good Lua coder, but I'm having trouble with NPC Relationships.

hook.Add("Think", "stealthAI", function()
	local light = (render.GetLightColor(LocalPlayer():GetPos())*Vector(255,255,255)):Length()*0.9
	local npc = ents.FindByClass("npc_*")
	local ply = LocalPlayer()
	
	if light < 3.0 then
		npc:AddEntityRelationship(ply, D_NU, 10)
	end
end)

And I get this error when I walk into the dark.

[ERROR] gamemodes/thekiller/gamemode/cl_init.lua:71: attempt to call method 'AddEntityRelationship' (a nil value)
  1. v - gamemodes/thekiller/gamemode/cl_init.lua:71
   2. unknown - lua/includes/modules/hook.lua:84

Does anyone know a fix for this?

[DeathWard]

AddEntityRelationship is a serverside function.

Is your script shared/clientsided?

Edit: Nevermind, it is clientsided. You used LocalPlayer().

[MysteryPancake]

I think if you did a 'for' loop through player.GetHumans() then set the relationship then it'd work serverside with no networking needed. (Probably don't use player.GetAll() since it would check bots as well)

[austinn2003]

[QUOTE=MPan1;49038126]I think if you did a 'for' loop through player.GetHumans() then set the relationship then it'd work serverside with no networking needed. (Probably don't use player.GetAll() since it would check bots as well)[/QUOTE]

I'll try that. Thanks for the help!

[editline]3rd November 2015[/editline]

[QUOTE=MPan1;49038126]I think if you did a 'for' loop through player.GetHumans() then set the relationship then it'd work serverside with no networking needed. (Probably don't use player.GetAll() since it would check bots as well)[/QUOTE]

Nope, it didn't work. I believe that it should have worked.

hook.Add("Think", "stealthAI", function()
	for k,v in pairs(player.GetHumans()) do
	local light = (render.GetLightColor(v:GetPos())*Vector(255,255,255)):Length()
	local npc = ents.FindByClass("npc_combine_s")
		if light > 3.0 then
			npc:AddEntityRelationship(ply, D_NU, 99)
		end
	end
end)

[MysteryPancake]

Sorry, should've tested that myself. Don't know what the problem is though since I'm just a cardboard box

[HornetPilot]

Doesn't ents.FindByClass return a table? You cant run AddEntityRelationship on a table.
[editline]asd[/editline]
Example courtesy to the wiki

[lua]function ENT:Think()
local enemy = ents.FindByClass( "npc_*" ) --Find any spawned entity in map with class beginning at npc
for _, x in pairs( enemy ) do --for every found entity do
if !x:IsNPC() then return end -- if found entity is not NPC then do nothing
if x:GetClass() != self:GetClass() then -- if found entity is not self entity then continue
x:AddEntityRelationship( self, D_HT, 99 ) -- found entity will hate self entity
self:AddEntityRelationship( x, D_HT, 99 ) -- self entity will hate found entity
end
end
end[/lua]

[DeathWard]

[QUOTE=austinn2003;49041295]I'll try that. Thanks for the help!

[editline]3rd November 2015[/editline]

Nope, it didn't work. I believe that it should have worked.

hook.Add("Think", "stealthAI", function()
    for k,v in pairs(player.GetHumans()) do
    local light = (render.GetLightColor(v:GetPos())*Vector(255,255,255)):Length()
    local npc = ents.FindByClass("npc_combine_s")
        if light > 3.0 then
            npc:AddEntityRelationship(ply, D_NU, 99)
        end
    end
end)

[/QUOTE]

You also used for k,v with player.GetHumans, but defined the current player value as "ply" instead of "v".

Also what above said, ents.Find returns a table.

[austinn2003]

[QUOTE=DeathWard;49046605]You also used for k,v with player.GetHumans, but defined the current player value as "ply" instead of "v".

Also what above said, ents.Find returns a table.[/QUOTE]

Oh, I'm so stupid. Thanks for telling me! I'll fix that and see if that works.

[austinn2003]

[QUOTE=DeathWard;49046605]You also used for k,v with player.GetHumans, but defined the current player value as "ply" instead of "v".

Also what above said, ents.Find returns a table.[/QUOTE]

Hmm.. It seems the relationship function doesn't seem to work. I've asked my friend about this and he said, "All of the default Half Life 2 enemies have hard coded relationships." Has anyone got the relationship function to work?

[HornetPilot]

[QUOTE=austinn2003;49056022]Hmm.. It seems the relationship function doesn't seem to work. I've asked my friend about this and he said, "All of the default Half Life 2 enemies have hard coded relationships." Has anyone got the relationship function to work?[/QUOTE]

Can you show current code?

[Potatofactory]

Instead of looping through all players, why not instead use ents.FindInSphere() based on NPC's location.

[austinn2003]

I'm changing my gamemode. I will not need this. I am tagging this as solved.