GLua Sky & Sun Editor

local config = {
    enabled = true,

    ["gm_construct_flatgrass_v6-2"] = {
        enabled = true,
        sun = {
            ["sun_dir"]      = Vector(0.81231, -0.58252, 0.02858),
            ["sunsize"]      = 33,
            ["overlaysize"]  = 0,
            ["suncolor"]     = Color(249, 224, 196),
            ["overlaycolor"] = Color(255, 221, 163),
        },
        sky = {
            ["topcolor"]    = Color(0, 7, 15),
            ["bottomcolor"] = Color(94, 66, 153),
            ["fadebias"]    = 0.25,
            ["hdrscale"]    = 0.66,

            ["drawstars"]   = true,
            ["startexture"] = "skybox/starfield",
            ["starlayers"]  = 1,
            ["starscale"]   = 1.03,
            ["starfade"]    = 0.65,
            ["starspeed"]   = 0.01,

            ["duskintensity"] = 1.44,
            ["duskscale"]     = 0.84,
            ["duskcolor"]     = Color(255, 40, 0),

            ["sunsize"]  = 0.37,
            ["suncolor"] = Color(255, 119, 0),

        }
    },

    ["gm_flatgrass"] = {
        enabled = true,
        sun = {
            ["sun_dir"]      = Vector(-0.938096, -0.343581, 0.043908),
            ["sunsize"]      = 33,
            ["overlaysize"]  = 0,
            ["suncolor"]     = Color(249, 224, 196),
            ["overlaycolor"] = Color(255, 221, 163),
        },
        sky = {
            ["topcolor"]    = Color(0, 7, 15),
            ["bottomcolor"] = Color(94, 66, 153),
            ["fadebias"]    = 0.25,
            ["hdrscale"]    = 0.66,

            ["drawstars"]   = true,
            ["startexture"] = "skybox/starfield",
            ["starlayers"]  = 1,
            ["starscale"]   = 1.03,
            ["starfade"]    = 0.65,
            ["starspeed"]   = 0.01,

            ["duskintensity"] = 1.44,
            ["duskscale"]     = 0.84,
            ["duskcolor"]     = Color(255, 40, 0),

            ["sunsize"]  = 0.37,
            ["suncolor"] = Color(255, 119, 0),

        }
    }
}


local sun, sky
local map


local function setKeys(ent, name)
    if not IsValid(ent) then
        print("Custom Sky: Error customizing - entity not valid")
        return
    end

    print("Custom Sky: Editing "..name)
    for k, v in pairs(config[map][name]) do

        local t = type(v)
        local val

        if t == "number"then
            val = tostring(v)
        elseif t == "boolean" then
            val = (v == true and "1" or "0")
        elseif t == "Vector" then
            val = Format("%f %f %f", v.x, v.y, v.z)
        elseif t == "table" then
            val = Format("%f %f %f", v.r/255, v.g/255, v.b/255)
        else
            val = v
        end

        ent:SetKeyValue(k, val)

    end

end

local function findFirst(name)
    local findList = ents.FindByClass(name)
    if(#findList > 0) then
        return findList[1]
    end
end

local function init()
    if not config.enabled then return end

    sun = findFirst("env_sun")
    sky = findFirst("env_skypaint")
    map = game.GetMap()

    local cfg = config[map]
    if cfg then
        if not cfg.enabled then return end

        if cfg.sun then
            setKeys(sun, "sun")
        end

        if cfg.sky then
            setKeys(sky, "sky")
        end
    else
        --print("Custom Sky: Config not set for "..map)
    end
end

init()
hook.Add("Initialize", "psb_customsky", function()
    timer.Simple(1, function()
        init()
    end)
end)