-- Copyright (C) 2012-2013 Diego Martínez <kaeza@users.sf.net>
-- License is WTFPL (see README.txt).

local MODNAME = "computer";

if (computer ~= nil) then
    error("some other mod defined computer");
end

computer = { };

--[[ computer.pixelnodebox:
  |
  |   Helper to create node boxes.
  |
  |   Parameters:
  |     size        Resolution of the `boxes'.
  |     boxes       The shape of the object.
  |
  |   Return Value:
  |     The new nodebox, ready to be assigned to `nodedef.node_box'.
  ]]
computer.pixelnodebox = function ( size, boxes )
    local fixed = { };
    local i, box;
    for i, box in ipairs(boxes) do
        local x, y, z, w, h, l = unpack(box);
        fixed[#fixed + 1] = {
            (x / size) - 0.5,
            (y / size) - 0.5,
            (z / size) - 0.5,
            ((x + w) / size) - 0.5,
            ((y + h) / size) - 0.5,
            ((z + l) / size) - 0.5,
        };
    end
    return {
        type = "fixed";
        fixed = fixed;
    };
end

--[[ computer.register:
  |
  |   Helper to register a new computer node.
  |
  |   Parameters:
  |     name        Short ID string used as the object name.
  |     desc        Description of the object for the inventory.
  |     nodebox     The shape of the object. Also used as selection.
  |
  |   Return Value:
  |     None.
  ]]
computer.register = function ( name, desc, nodebox )

    local TEXPFX = MODNAME.."_"..name.."_";

    minetest.register_node(MODNAME..":"..name, {
        drawtype = "nodebox";
        paramtype = "light";
        paramtype2 = "facedir";
        description = desc;
        groups = { snappy=2, choppy=2, oddly_breakable_by_hand=2 };
        tiles = {
            TEXPFX.."top.png",
            TEXPFX.."bottom.png",
            TEXPFX.."right.png",
            TEXPFX.."left.png",
            TEXPFX.."back.png",
            TEXPFX.."front.png"
        };
        node_box = nodebox;
        selection_box = nodebox;
    });

end

local MODPATH = minetest.get_modpath(MODNAME);
dofile(MODPATH.."/nodes.lua");
dofile(MODPATH.."/miscitems.lua");
dofile(MODPATH.."/recipes.lua");