forked from mtcontrib/display_modpack
65 lines
2.1 KiB
Lua
65 lines
2.1 KiB
Lua
--[[
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font_api mod for Minetest - Library to add font display capability
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to display_api mod.
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(c) Pierre-Yves Rollo
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This program 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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This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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--]]
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-- Global variables
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-------------------
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font_api = {}
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font_api.name = minetest.get_current_modname()
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font_api.path = minetest.get_modpath(font_api.name)
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-- Inclusions
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-------------
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dofile(font_api.path.."/font.lua")
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dofile(font_api.path.."/registry.lua")
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--- Standard on_display_update entity callback.
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-- Node should have a corresponding display_entity with size, resolution and
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-- maxlines fields and optionally halign, valign and color fields
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-- @param pos Node position
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-- @param objref Object reference of entity
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function font_api.on_display_update(pos, objref)
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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 ndef = minetest.registered_nodes[minetest.get_node(pos).name]
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local entity = objref:get_luaentity()
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if entity and ndef.display_entities[entity.name] then
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local def = ndef.display_entities[entity.name]
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local font = font_api.get_font(meta:get_string("font") or def.font_name)
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local maxlines = def.maxlines or 1 -- TODO:How to do w/o maxlines ?
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objref:set_properties({
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textures={font:make_text_texture(text,
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font:get_height(maxlines) * def.size.x / def.size.y
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/ (def.aspect_ratio or 1),
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font:get_height(maxlines),
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def.maxlines, def.halign, def.valign, def.color)},
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visual_size = def.size
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})
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end
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end
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-- Compatibility
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font_lib = font_api
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