-- Sky switcher, version 1.0
-- idea: Ethan2
-- module written by: juce


local skyroot = ".\\content\\sky-mod\\"
local sky = 0

local sky_map = {
    [1] = "st099",
    [2] = "st100",
    [3] = "st101",
    [4] = "st102",
    [5] = "st103",
    [6] = "st104",
    [7] = "st105",
    [8] = "st106",
    [9] = "st107",
    [10] = "st108",
    [11] = "st109",
    [12] = "st110",
    [13] = "st111",
    [14] = "st112",
    [15] = "st113",
}

function make_key(ctx, filename)
    if sky > 0 then
        return string.gsub(filename, "st%d%d%d", sky_map[sky])
    end
end

function get_filepath(ctx, filename, key)
    if key then
        return skyroot .. key
    end
end

function set_conditions(ctx, options)
    sky = math.random(1,15)
    log("sky selected: " .. sky)
end

function init(ctx)
    if skyroot:sub(1,1) == "." then
        skyroot = ctx.sider_dir .. skyroot
    end
     math.randomseed(os.time())  -- seed random generator
    ctx.register("set_conditions", set_conditions)
    ctx.register("set_conditions_for_replay", set_conditions)
    ctx.register("livecpk_make_key", make_key)
    ctx.register("livecpk_get_filepath", get_filepath)
end

return { init = init }