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path: root/gamemode/npcsystem/aidirector.lua
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--Lol i dunno, spawn some npc's or something

concommand.Add("ws_spawnzomb",function(ply, cmd, args)
    SpawnNpcByName("Zombie",ply:GetPos())
end)

concommand.Add("ws_spawnbird",function(ply,cmd,args)
    SpawnNpcByName("Bird",ply:GetPos())
end)

local function spawnnpcfunc(ply,cmd,args)
    if(!args[1]) then print("You must enter the name of an npc")
    return end

    local npc = GetNpcByName(args[1])
    if(npc == nil) then print("Not a valid name!")
    return end
    SpawnNpcByName(args[1],ply:GetPos())
end

local function spawnnpccomplete(cmd,stringargs)
    print(cmd, stringargs)
    local tbl = {}
    stringargs = string.sub(stringargs,2)
    if(stringargs == " ") then
        for k,v in pairs(GAMEMODE.Npcs) do
            table.insert(tbl,cmd .. " \"" .. v.Name .. "\"")
        end
        return tbl
    end
    for k,v in pairs(GAMEMODE.Npcs) do
        if(string.find(string.lower(v.Name),stringargs)) then
            table.insert(tbl,cmd .. " \"" .. v.Name .. "\"")
        else
            ErrorNoHalt("Could not find " .. stringargs .. " in " .. string.lower(v.Name))
        end
    end
    return tbl
end

concommand.Add("ws_spawnnpc",spawnnpcfunc, spawnnpccomplete, "Spawns an NPC from winter survival, useage: ws_spawnnpc <name>")

local npcfields = {
    "Model","Drops","OnDammage","Behave",
    "Act","Stats","IdleSequences","Attacks",
    "AttackPriority","AwareEnemies","OnSpawn"
}

function SpawnNpcByName(name, position)
    if(CLIENT) then return end
    entdata = GetNpcByName(name)
    if not entdata then
        ErrorNoHalt("Could not find npc data for name ",name)
        return
    end
    if not position then
        ErrorNoHalt("Attempted to spawn an NPC at an invalid location",position)
        return
    end
    ent = ents.Create("ws_npc_ambient")
    if(not ent) then
        return
    end
    ent:SetPos(position)
    for k,v in pairs(npcfields) do
        if entdata[v] then
            ent[v] = entdata[v]
        end
    end
    ent:Spawn()
end

local random = math.random
local traceline = util.TraceLine
local contents  = util.PointContents
local Up 		= Vector(0,0,1)

--Randomly spawn npc's around?
local ambientnpcs = {
    [0] = "Bird",
    [1] = "Zombie",
    [2] = "Antlion Scout",
    [3] = "Antlion Pouncer"
}

local builtinnpcs = {
    ["npc_zombie"] = {
        {"Meat",100},
        {"Meat",100},
        {"Meat",100},
        {"Meat",100},
        {"Meat",80},
        {"Meat",40},
        {"Meat",10},
    },
    ["npc_antlion"] = {
        {"Meat",100},
        {"Meat",100},
        {"Meat",80},
        {"Meat",50},
        {"Chitin",80},
        {"Chitin",50},
    },
    ["npc_crow"] = {
        {"Meat",100},--Birds will drop at least 1 meat, and have a 50% chance of dropping 2
        {"Meat",50},
        {"Feather",100},
        {"Feather",100},
        {"Feather",80},
        {"Feather",80},
        {"Feather",40},
        {"Feather",40},
        {"Feather",40},
        {"Feather",40},
    }
}
local npcnames = table.GetKeys(builtinnpcs)

hook.Add("OnNPCKilled","spawnnpcloot",function(npc,attacker,inflictor)
    if npc:GetClass() == "npc_antlionguard" then
        local drop = ents.Create("ws_item")
        drop.Item = GetItemByName("Heart of Beast")
        drop:SetModel(drop.Item.Model)
        drop:SetPos(npc:GetPos() + (npc:GetUp() * 20))
        drop:Spawn()
    end
    if builtinnpcs[npc:GetClass()] == nil then return end
    local npctbl = builtinnpcs[npc:GetClass()]
    local heightoffset = 20
    for k,v in pairs(npctbl) do
        local rng = math.random(0,100)
        if rng < v[2] then
            local drop = ents.Create("ws_item")
            drop.Item = GetItemByName(v[1])
            drop:SetModel(drop.Item.Model)
            drop:SetPos(npc:GetPos() + (npc:GetUp() * heightoffset))
            drop:Spawn()
            heightoffset = heightoffset + 10
        end
    end
end)

local Tick = CurTime()
hook.Add("Tick","SpawnAmbient",function()
    if(CLIENT) then return end
    if (Tick < CurTime()) then
        --Assume most players are about ground level
        --Spawn 1 bird for each player on the server
        local areas = {}
        for k,v in pairs(player.GetAllHumans()) do

            for i,area in pairs(ents.FindByClass("info_target")) do
                if (area:GetName() == "survival_spawn") then
                    local parent = area:GetParent()
                    if (IsValid(parent)) then
                        areas[area] = parent
                    end
                end
            end
            --SpawnNpcByName("Bird",v:GetPos() + (v:GetUp()*500))
        end

        for pAe,pBe in pairs(areas) do
            local pA,pB = pAe:GetPos(),pBe:GetPos()
            local Dis = pA:Distance(pB)

            local V = Vector(random(pB.x,pA.x),random(pB.y,pA.y),random(pB.z,pA.z))
            local Tr = traceline({start=V,endpos=V-Up*40000})
            local Pos = Tr.HitPos+Up*20
            local C  = contents(Pos)

            if (C != CONTENTS_WATER and C != CONTENTS_WATER+CONTENTS_TRANSLUCENT) then
                local randnpcnum = math.Round(math.Rand(0, #ambientnpcs))
                local npc = GetNpcByName(ambientnpcs[randnpcnum])
                if(npc == nil) then
                    ErrorNoHalt(string.format([[
                    Tried to spawn an NPC that wasn't registered: %s
                    ]],ambientnpcs[randnpcnum]))
                    continue
                end
                if(npc:SpawnLocations(Pos)) then
                    --Spawn a random npc
                    local npcname = npcnames[ math.random( #npcnames ) ]
                    if math.random(0,100) == 1 then
                        npcname = "npc_antlionguard"
                    end
                    local e = ents.Create(npcname)
                    e:SetPos(Pos)
                    e:Spawn()
                end
                break
            end
        end

        Tick = CurTime()+30
    end
end)