-- File:     codersea/util.lua
-- Purpose:  CoderSea initial definitions and support routines
-- Licenses: See "LICENSE"

-- -------------------------------------------------------------------

function has_bool (flagname)
    return minetest.setting_getbool (flagname)
end

-- -------------------------------------------------------------------

has_ethereal = ocutil.mod_exists ("ethereal")

-- -------------------------------------------------------------------

function StartsWith (String, Start)
    return string.sub (String, 1,
        string.len (Start)) == Start
end

-- -------------------------------------------------------------------

function EndsWith (String, End)
    return End == '' or string.sub (String,
        -string.len (End)) == End
end

-- -------------------------------------------------------------------

function numset (name)
    return tonumber (minetest.setting_get (name))
end

-- -------------------------------------------------------------------

function pos_to_str (pos)
    return pos.x .. "," .. pos.y .. "," .. pos.z
end

-- -------------------------------------------------------------------

function is_water (uppos)
    local upname = minetest.get_node (uppos).name
    if (upname ==  "default:water_flowing" or
        upname ==  "default:water_source"  or
        upname ==  "default:water_gel"     or
        upname == "codersea:water_flowing" or
        upname == "codersea:water_source") then
        return true
    end
    return false
end

-- -------------------------------------------------------------------

codersea_delete_mobs = false

function mob_custom (self, pos)
    if codersea_delete_mobs then
        self.object:remove()
        return false
    end
    return true
end

-- -------------------------------------------------------------------

live_water = {
    "codersea:water_source"     ,
    "default:water_source"      ,
    "default:water_gel"         ,
}

fly_water  = {
    "codersea:water_source"     ,
    "default:water_source"      ,
    "default:water_gel"         ,

    "codersea:kelpgreen"        ,
    "codersea:kelpgreenmiddle"  ,
    "codersea:kelpbrown"        ,
    "codersea:kelpbrownmiddle"  ,
    "codersea:seagrassgreen"    ,
    "codersea:seagrassred"      ,
    "codersea:ethereal_seaweed" ,

    "ethereal:seaweed"          ,
    "ethereal:coral2"           ,
    "ethereal:coral3"           ,
    "ethereal:coral4"           ,
    "ethereal:coral5"           ,
    "ethereal:sandy"            ,
}

-- -------------------------------------------------------------------

-- The first entry in this list should be an empty string: ""
-- The other entries  should be the names of colors supported for sea-
-- glass.
--
seaglass_colors = {
    ""          , "black"     , "blue"      , "red"       ,
    "white"     , "yellow"    ,
}

-- -------------------------------------------------------------------

-- The first entry in this list should be an empty string: ""
-- The other entries  should be the names of colors supported for sea-
-- stone and related nodes.
--
seastone_colors = {
    ""          , "aqua"      , "cyan"      , "lime"      ,
    "magenta"   , "redviolet" , "skyblue"   ,
}

sounds_dirt   = default.node_sound_dirt_defaults()
sounds_glass  = default.node_sound_glass_defaults()
sounds_leaves = default.node_sound_leaves_defaults()
sounds_sand   = default.node_sound_sand_defaults()
sounds_stone  = default.node_sound_stone_defaults()

function CloneTable (original)
    local copy = {}
    for k, v in pairs (original) do
        if type (v) == 'table' then
            v = CloneTable (v)
        end
        copy [k] = v
    end
    return copy
end

seastone_list = {}
seaglass_list = {}