67 lines
2.0 KiB
Lua
67 lines
2.0 KiB
Lua
--[[
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digimons mod for Minetest - Digiline monitors using Display API / Font API
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(c) Pierre-Yves Rollo
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This file is part of digimons.
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signs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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signs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with signs. If not, see <http://www.gnu.org/licenses/>.
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--]]
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digimons.columns = 30
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local function get_lines(pos)
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local lines = {}
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local meta = minetest.get_meta(pos)
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local text = meta:get_string("display_text")
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local pos = 1
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repeat
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local found = text:find("\n", pos) or #text + 1
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lines[#lines+1] = text:sub(pos, found - 1)
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pos = found + 1
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until (pos > (#text + 1))
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return lines
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end
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local function set_lines(pos, lines)
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local meta = minetest.get_meta(pos)
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meta:set_string("display_text", table.concat(lines, "\n"))
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end
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local function push_line(lines, line, maxlines)
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for index = 1, (maxlines - 1) do
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lines[index] = lines[index + 1] or ""
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end
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lines[maxlines] = line
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end
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local function push_text(lines, text, maxlines, maxcolumns)
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local pos = 1
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repeat
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local found = text:find("\n", pos) or #text + 1
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local line = text:sub(pos, found - 1)
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for index = 1, math.ceil(line:len() / maxcolumns) do
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local part = line:sub((index-1)*maxcolumns+1, index*maxcolumns)
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push_line(lines, part, maxlines)
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end
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pos = found + 1
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until (pos > (#text + 1))
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end
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function digimons.push_text_on_screen(pos, text)
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local lines = get_lines(pos)
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push_text(lines, text, 6, 20)
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set_lines(pos, lines)
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display_api.update_entities(pos)
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end
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