drawers/lua/helpers.lua

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--[[
Minetest Mod Storage Drawers - A Mod adding storage drawers
Copyright (C) 2017 LNJ <git@lnj.li>
Copyright (C) 2016 Mango Tango <mtango688@gmail.com>
MIT License
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
]]
function drawers.gen_info_text(basename, count, factor, stack_max)
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local maxCount = stack_max * factor
local percent = count / maxCount * 100
-- round the number (float -> int)
percent = math.floor(percent + 0.5)
if count == 0 then
return basename .. " (" .. tostring(percent) .. "% full)"
else
return tostring(count) .. " " .. basename .. " (" ..
tostring(percent) .. "% full)"
end
end
function drawers.get_inv_image(name)
local texture = "drawers_empty.png"
local def = core.registered_items[name]
if name ~= "air" and def then
if def.inventory_image and #def.inventory_image > 0 then
texture = def.inventory_image
else
if not def.tiles then return texture end
local c = #def.tiles or 0
local x = {}
for i, v in ipairs(def.tiles) do
if type(v) == "table" then
x[i] = v.name
else
x[i] = v
end
i = i + 1
end
if not x[3] then x[3] = x[1] end
if not x[4] then x[4] = x[3] end
texture = core.inventorycube(x[1], x[3], x[4])
end
end
return texture
end
function drawers.spawn_visual(pos)
local node = core.get_node(pos)
local ndef = core.registered_nodes[node.name]
local drawerType = ndef.groups.drawer
-- data for the new visual
drawers.last_drawer_pos = pos
drawers.last_drawer_type = drawerType
if drawerType == 1 then -- 1x1 drawer
drawers.last_visual_id = ""
drawers.last_texture = drawers.get_inv_image(core.get_meta(pos):get_string("name"))
local bdir = core.facedir_to_dir(node.param2)
local fdir = vector.new(-bdir.x, 0, -bdir.z)
local pos2 = vector.add(pos, vector.multiply(fdir, 0.438))
obj = core.add_entity(pos2, "drawers:visual")
if bdir.x < 0 then obj:setyaw(0.5 * math.pi) end
if bdir.z < 0 then obj:setyaw(math.pi) end
if bdir.x > 0 then obj:setyaw(1.5 * math.pi) end
drawers.last_texture = nil
else -- 2x2 drawer
local bdir = core.facedir_to_dir(node.param2)
local fdir1
local fdir2
local fdir3
local fdir4
if node.param2 == 2 then
fdir1 = vector.new(-bdir.x + 0.5, 0.5, -bdir.z)
fdir2 = vector.new(-bdir.x - 0.5, 0.5, -bdir.z)
fdir3 = vector.new(-bdir.x + 0.5, -0.5, -bdir.z)
fdir4 = vector.new(-bdir.x - 0.5, -0.5, -bdir.z)
elseif node.param2 == 0 then
fdir1 = vector.new(-bdir.x - 0.5, 0.5, -bdir.z)
fdir2 = vector.new(-bdir.x + 0.5, 0.5, -bdir.z)
fdir3 = vector.new(-bdir.x - 0.5, -0.5, -bdir.z)
fdir4 = vector.new(-bdir.x + 0.5, -0.5, -bdir.z)
elseif node.param2 == 1 then
fdir1 = vector.new(-bdir.x, 0.5, -bdir.z + 0.5)
fdir2 = vector.new(-bdir.x, 0.5, -bdir.z - 0.5)
fdir3 = vector.new(-bdir.x, -0.5, -bdir.z + 0.5)
fdir4 = vector.new(-bdir.x, -0.5, -bdir.z - 0.5)
else
fdir1 = vector.new(-bdir.x, 0.5, -bdir.z - 0.5)
fdir2 = vector.new(-bdir.x, 0.5, -bdir.z + 0.5)
fdir3 = vector.new(-bdir.x, -0.5, -bdir.z - 0.5)
fdir4 = vector.new(-bdir.x, -0.5, -bdir.z + 0.5)
end
objs = {}
drawers.last_visual_id = 1
drawers.last_texture = drawers.get_inv_image(core.get_meta(pos):get_string("name1"))
local pos1 = vector.add(pos, vector.multiply(fdir1, 0.438))
objs[1] = core.add_entity(pos1, "drawers:visual")
drawers.last_visual_id = 2
drawers.last_texture = drawers.get_inv_image(core.get_meta(pos):get_string("name2"))
local pos2 = vector.add(pos, vector.multiply(fdir2, 0.438))
objs[2] = core.add_entity(pos2, "drawers:visual")
drawers.last_visual_id = 3
drawers.last_texture = drawers.get_inv_image(core.get_meta(pos):get_string("name3"))
local pos3 = vector.add(pos, vector.multiply(fdir3, 0.438))
objs[3] = core.add_entity(pos3, "drawers:visual")
drawers.last_visual_id = 4
drawers.last_texture = drawers.get_inv_image(core.get_meta(pos):get_string("name4"))
local pos4 = vector.add(pos, vector.multiply(fdir4, 0.438))
objs[4] = core.add_entity(pos4, "drawers:visual")
for i,obj in pairs(objs) do
if bdir.x < 0 then obj:setyaw(0.5 * math.pi) end
if bdir.z < 0 then obj:setyaw(math.pi) end
if bdir.x > 0 then obj:setyaw(1.5 * math.pi) end
end
end
end