local reg_alias = ocutil.safe_register_alias
local reg_node  = ocutil.safe_register_node
local neednode

-- ===================================================================

neednode = "projlights:light_node"
--
reg_node (neednode, {
    description = "light node",
    drawtype = "airlike",
    walkable = false,
    pointable = false,
    sunlight_propagates = true,
    paramtype = 'light',
    light_source = 14,
    buildable_to = true,
    is_ground_content = false,
    groups = {unbreakable=1, not_in_creative_inventory = 1},
})
reg_alias ("projection_light:light_node"  , neednode)
reg_alias ("projection_lights:light_node" , neednode)

-- ===================================================================

neednode = "projlights:light"
--
reg_node (neednode, {
    description = "Projection Lighting",
    drawtype = "nodebox",
    node_box = {
        type = "fixed",
        fixed = {
            {-0.5 , 0.3125, -0.5, 0.5, 0.5, 0.5},
            },
        },

    tiles = { 'cg72_light.png' },
    sunlight_propagates = false,
    paramtype = 'light',
    walkable = true,
    light_source = 14,
    drop = 'projlights:light',

    groups = { snappy = 3 },
        selection_box = {
            type = "fixed",
        fixed = {
            {-0.5 , 0.3125, -0.5, 0.5, 0.5, 0.5},
            },
        },

    on_place = function(itemstack, placer, pointed_thing)
        local pos = pointed_thing.above
        local pos1 = {x=pos.x, y=pos.y-1, z=pos.z}

        for i = 1,60 do

            local pos2 = {x=pos.x, y=pos.y-i, z=pos.z}
            local pos3 = {x=pos2.x, y=pos2.y-1, z=pos2.z}

            if minetest.get_node(pos1).name == "air" then
                minetest.add_node(pos1, {name = "projlights:light_node"} )
            end

            if minetest.get_node(pos3).name == "air" and minetest.get_node(pos2).name == "projlights:light_node" then
                minetest.add_node(pos3, {name = "projlights:light_node"} )
            end

        end

        return minetest.item_place(itemstack, placer, pointed_thing)
    end,

     after_dig_node = function(pos, oldnode, oldmetadata, digger)

    for i = 1,60 do
        local pos2 = {x=pos.x, y=pos.y-i, z=pos.z}

            if  minetest.get_node(pos).name     == "projlights:light" then
                minetest.add_node(pos, {name = "air"} )
            end
            if  minetest.get_node(pos2).name    == "projlights:light_node" then
                minetest.add_node(pos2, {name = "air"} )
            elseif minetest.get_node(pos2).name == "projlights:light" then
                return
            end
        end
    end ,
})
reg_alias ("projection_light:light"  , neednode)
reg_alias ("projection_lights:light" , neednode)

-- ===================================================================

minetest.register_craft ({
    output = "projlights:light" ,
    recipe = {
        { "default:steel_ingot", "default:steel_ingot", "default:steel_ingot", },
        { "group:glass",         "default:torch",       "group:glass", },
        { "group:glass",         "default:torch",       "group:glass", },
    }
})

minetest.register_craft ({
    output = "projlights:light" ,
    recipe = {
        { "default:steel_ingot", "default:steel_ingot", "default:steel_ingot", },
        { "default:glass",       "default:torch",       "default:glass", },
        { "default:glass",       "default:torch",       "default:glass", },
    }
})

neednode = "moreblocks:super_glo_glass"
--
if ocutil.thing_exists (neednode) then
    minetest.register_craft ({
        output = "projlights:light" ,
        recipe = {
            { neednode, "", "", } ,
            { neednode, "", "", } ,
            { neednode, "", "", } ,
        }
    })
end

neednode = "coderblocks:glowlight_quarter_white"
--
if ocutil.thing_exists (neednode) then
    minetest.register_craft ({
        output = "projlights:light" ,
        recipe = {
            { neednode, "", "", },
            { neednode, "", "", },
            { neednode, "", "", },
        }
    })
end