mirror of
https://github.com/pyrollo/display_modpack.git
synced 2024-12-04 20:13:44 +01:00
Depreciation of old display groups and display_lib global + warnings
This commit is contained in:
Pierre-Yves Rollo
parent
ab5a510775
commit
9ce075d30b
72
deprecation.lua
Normal file
72
deprecation.lua
Normal file
@ -0,0 +1,72 @@
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--[[
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display_api mod for Minetest - Library to add dynamic display
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capabilities to nodes
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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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-- Deprecation
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function deprecated_group(deprecated_group, replacement_group)
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for name, ndef in pairs(minetest.registered_nodes) do
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if ndef.groups and ndef.groups[deprecated_group] then
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minetest.log("warning", string.format('Node %s belongs to deprecated "%s" group which should be replaced with new "%s" group.',
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name, deprecated_group, replacement_group))
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end
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end
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end
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function deprecated_global_table(deprecated_global_name, replacement_global_name)
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assert(type(deprecated_global_name) == 'string', "deprecated_global_name should be a string.")
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assert(type(replacement_global_name) == 'string', "replacement_global_name should be a string.")
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assert(deprecated_global_name ~= '', "deprecated_global_name should not be empty.")
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assert(replacement_global_name ~= '', "replacement_global_name should not be empty.")
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assert(rawget(_G, deprecated_global_name) == nil, "replacement global already exists.")
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if _G[replacement_global_name] == nil then
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print('warn_deprecated_functions: Warning, replacement global "'..replacement_global_name..'" does not exists.')
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return
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end
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local meta = {
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deprecated = deprecated_global_name,
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replacement = replacement_global_name,
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__index = function(table, key)
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local meta = getmetatable(table)
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local dbg = debug.getinfo(2, "lS")
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minetest.log("warning", string.format('Warning: Accessing deprecated "%s" table, "%s" should be used instead (%s:%d).',
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meta.deprecated, meta.replacement, (dbg.short_src or 'unknown'), (dbg.currentline or 0)))
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return _G[meta.replacement][key]
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end,
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__newindex = function(table, key, value)
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local meta = getmetatable(table)
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local dbg = debug.getinfo(2, "lS")
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minetest.log("warning", string.format('Warning: Accessing deprecated "%s" table, "%s" should be used instead (%s:%d).',
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meta.deprecated, meta.replacement, (dbg.short_src or 'unknown'), (dbg.currentline or 0)))
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_G[meta.replacement][key]=value
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end,
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}
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rawset(_G, deprecated_global_name, {})
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setmetatable(_G[deprecated_global_name], meta)
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end
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-- deprecated(1) -- December 2018 - Deprecation of groups display_modpack_node and display_lib_node
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-- Group to be removed from display API register_lbm
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minetest.after(0, function()
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deprecated_group("display_modpack_node", "display_api")
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deprecated_group("display_lib_node", "display_api")
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end)
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-- deprecated(2) -- December 2018 - Deprecation of display_lib
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deprecated_global_table('display_lib', 'display_api')
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236
display.lua
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236
display.lua
Normal file
@ -0,0 +1,236 @@
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--[[
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display_api mod for Minetest - Library to add dynamic display
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capabilities to nodes
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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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-- Prefered gap between node and entity
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-- Entity positionment is up to mods but it is a good practice to use this
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-- variable as spacing between entity and node
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display_api.entity_spacing = 0.002
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-- Maximum entity position relative to the node pos
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local max_entity_pos = 1.5
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-- Miscelaneous values depending on wallmounted param2
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local wallmounted_values = {
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[2]={dx=-1, dz=0, rx=0, rz=-1, yaw=-math.pi/2},
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[3]={dx=1, dz=0, rx=0, rz=1, yaw=math.pi/2 },
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[4]={dx=0, dz=-1, rx=1, rz=0, yaw=0 },
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[5]={dx=0, dz=1, rx=-1, rz=0, yaw=math.pi }
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}
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-- Miscelaneous values depending on facedir param2
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local facedir_values = {
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[0]={dx=0, dz=-1, rx=1, rz=0, yaw=0 },
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[1]={dx=-1, dz=0, rx=0, rz=-1, yaw=-math.pi/2},
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[2]={dx=0, dz=1, rx=-1, rz=0, yaw=math.pi },
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[3]={dx=1, dz=0, rx=0, rz=1, yaw=math.pi/2 }
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}
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-- dx/dy = depth vector, rx/ly = right vector, yaw = yaw of entity,
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local function get_values(node)
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local ndef = minetest.registered_nodes[node.name]
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if ndef then
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local paramtype2 = ndef.paramtype2
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if paramtype2 == "wallmounted" or paramtype2 == "colorwallmounted" then
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return wallmounted_values[node.param2 % 8]
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elseif paramtype2 == "facedir" or paramtype2 == "colorfacedir" then
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return facedir_values[node.param2 % 32]
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end
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end
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end
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--- Gets the display entities attached with a node. Removes extra ones
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local function get_entities(pos)
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local objrefs = {}
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local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
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if ndef and ndef.display_entities then
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for _, objref in
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ipairs(minetest.get_objects_inside_radius(pos, max_entity_pos)) do
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local entity = objref:get_luaentity()
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if entity and ndef.display_entities[entity.name] and
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entity.nodepos and vector.equals(pos, entity.nodepos) then
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if objrefs[entity.name] then
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objref:remove() -- Remove duplicates
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else
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objrefs[entity.name] = objref
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end
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end
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end
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end
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return objrefs
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end
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local function clip_pos_prop(posprop)
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if posprop then
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return math.max(-max_entity_pos, math.min(max_entity_pos, posprop))
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else
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return 0
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end
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end
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--- (Create and) place display entities according to the node orientation
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local function place_entities(pos)
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local node = minetest.get_node(pos)
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local ndef = minetest.registered_nodes[node.name]
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local values = get_values(node)
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local objrefs = get_entities(pos)
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if values and ndef and ndef.display_entities then
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for entity_name, props in pairs(ndef.display_entities) do
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local depth = clip_pos_prop(props.depth)
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local right = clip_pos_prop(props.right)
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local top = clip_pos_prop(props.top)
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if not objrefs[entity_name] then
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objrefs[entity_name] = minetest.add_entity(pos, entity_name,
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minetest.serialize({ nodepos = pos }))
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end
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objrefs[entity_name]:setpos({
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x = pos.x - values.dx * depth + values.rx * right,
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y = pos.y - top,
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z = pos.z - values.dz * depth + values.rz * right})
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objrefs[entity_name]:setyaw(values.yaw)
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end
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end
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return objrefs
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end
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--- Entity update
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function update_entity(entity)
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if not entity then
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return
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end
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if not entity.nodepos then
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entity.object:remove() -- Remove old/buggy entity
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return
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end
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local node = minetest.get_node(entity.nodepos)
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local ndef = minetest.registered_nodes[node.name]
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if ndef and ndef.display_entities and
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ndef.display_entities[entity.name] and
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ndef.display_entities[entity.name].on_display_update
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then
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-- Call on_display_update callback of a node for one of its display entities
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ndef.display_entities[entity.name].on_display_update(entity.nodepos,
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entity.object)
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end
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end
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--- Force entity update
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function display_api.update_entities(pos)
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for _, objref in pairs(place_entities(pos)) do
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update_entity(objref:get_luaentity())
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end
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end
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--- On_activate callback for display_api entities. Calls on_display_update callbacks
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--- of corresponding node for each entity.
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function display_api.on_activate(entity, staticdata)
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if entity then
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if string.sub(staticdata, 1, string.len("return")) == "return" then
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local data = minetest.deserialize(staticdata)
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if data and type(data) == "table" then
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entity.nodepos = data.nodepos
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end
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entity.object:set_armor_groups({immortal=1})
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end
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update_entity(entity)
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end
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end
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--- On_place callback for display_api items.
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-- Does nothing more than preventing node from being placed on ceiling or ground
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function display_api.on_place(itemstack, placer, pointed_thing, override_param2)
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local ndef = itemstack:get_definition()
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local above = pointed_thing.above
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local under = pointed_thing.under
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local dir = {x = under.x - above.x, y = 0, z = under.z - above.z}
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-- If item is not placed on a wall, use the player's view direction instead
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if dir.x == 0 and dir.z == 0 then
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dir = placer:get_look_dir()
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dir.y = 0
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end
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local param2 = 0
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if ndef then
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local paramtype2 = ndef.paramtype2
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if paramtype2 == "wallmounted" or paramtype2 == "colorwallmounted" then
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param2 = minetest.dir_to_wallmounted(dir)
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elseif paramtype2 == "facedir" or paramtype2 == "colorfacedir" then
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param2 = minetest.dir_to_facedir(dir)
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end
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end
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return minetest.item_place(itemstack, placer, pointed_thing,
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param2 + (override_param2 or 0))
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end
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--- On_construct callback for display_api items.
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-- Creates entities and update them.
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function display_api.on_construct(pos)
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display_api.update_entities(pos)
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end
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--- On_destruct callback for display_api items.
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-- Removes entities.
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function display_api.on_destruct(pos)
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for _, objref in pairs(get_entities(pos)) do
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objref:remove()
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end
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end
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-- On_rotate (screwdriver) callback for display_api items. Prevents invalid rotations and reorients entities.
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function display_api.on_rotate(pos, node, user, _, new_param2)
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node.param2 = new_param2
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if get_values(node) then
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minetest.swap_node(pos, node)
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place_entities(pos)
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return true
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else
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return false
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end
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end
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--- Creates display entity with some fields and the on_activate callback
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function display_api.register_display_entity(entity_name)
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if not minetest.registered_entity then
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minetest.register_entity(':'..entity_name, {
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collisionbox = { 0, 0, 0, 0, 0, 0 },
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visual = "upright_sprite",
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textures = {},
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on_activate = display_api.on_activate,
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get_staticdata = function(self)
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return minetest.serialize({ nodepos = self.nodepos })
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end,
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})
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end
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end
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minetest.register_lbm({
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label = "Update display_api entities",
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name = "display_api:update_entities",
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run_at_every_load = true,
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nodenames = {"group:display_api",
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"group:display_modpack_node", "group:display_lib_node"}, -- See deprecated(1)
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action = function(pos, node) display_api.update_entities(pos) end,
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})
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227
init.lua
227
init.lua
@ -17,224 +17,15 @@
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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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display_api = {}
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display_api.name = minetest.get_current_modname()
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display_api.path = minetest.get_modpath(display_api.name)
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-- Prefered gap between node and entity
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-- Entity positionment is up to mods but it is a good practice to use this
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-- variable as spacing between entity and node
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display_api.entity_spacing = 0.002
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-- Inclusions
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-------------
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-- Maximum entity position relative to the node pos
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local max_entity_pos = 1.5
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-- Miscelaneous values depending on wallmounted param2
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local wallmounted_values = {
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[2]={dx=-1, dz=0, rx=0, rz=-1, yaw=-math.pi/2},
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[3]={dx=1, dz=0, rx=0, rz=1, yaw=math.pi/2 },
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[4]={dx=0, dz=-1, rx=1, rz=0, yaw=0 },
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[5]={dx=0, dz=1, rx=-1, rz=0, yaw=math.pi }
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}
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-- Miscelaneous values depending on facedir param2
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local facedir_values = {
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[0]={dx=0, dz=-1, rx=1, rz=0, yaw=0 },
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[1]={dx=-1, dz=0, rx=0, rz=-1, yaw=-math.pi/2},
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[2]={dx=0, dz=1, rx=-1, rz=0, yaw=math.pi },
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[3]={dx=1, dz=0, rx=0, rz=1, yaw=math.pi/2 }
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}
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-- dx/dy = depth vector, rx/ly = right vector, yaw = yaw of entity,
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local function get_values(node)
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local ndef = minetest.registered_nodes[node.name]
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if ndef then
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local paramtype2 = ndef.paramtype2
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if paramtype2 == "wallmounted" or paramtype2 == "colorwallmounted" then
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return wallmounted_values[node.param2 % 8]
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elseif paramtype2 == "facedir" or paramtype2 == "colorfacedir" then
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return facedir_values[node.param2 % 32]
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end
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end
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end
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--- Gets the display entities attached with a node. Removes extra ones
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local function get_entities(pos)
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local objrefs = {}
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local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
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if ndef and ndef.display_entities then
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for _, objref in
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ipairs(minetest.get_objects_inside_radius(pos, max_entity_pos)) do
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local entity = objref:get_luaentity()
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if entity and ndef.display_entities[entity.name] and
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entity.nodepos and vector.equals(pos, entity.nodepos) then
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if objrefs[entity.name] then
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objref:remove() -- Remove duplicates
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else
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objrefs[entity.name] = objref
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end
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end
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end
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end
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return objrefs
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end
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local function clip_pos_prop(posprop)
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if posprop then
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return math.max(-max_entity_pos, math.min(max_entity_pos, posprop))
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else
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return 0
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end
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end
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--- (Create and) place display entities according to the node orientation
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local function place_entities(pos)
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local node = minetest.get_node(pos)
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local ndef = minetest.registered_nodes[node.name]
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local values = get_values(node)
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local objrefs = get_entities(pos)
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if values and ndef and ndef.display_entities then
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for entity_name, props in pairs(ndef.display_entities) do
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local depth = clip_pos_prop(props.depth)
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local right = clip_pos_prop(props.right)
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local top = clip_pos_prop(props.top)
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if not objrefs[entity_name] then
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objrefs[entity_name] = minetest.add_entity(pos, entity_name,
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minetest.serialize({ nodepos = pos }))
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end
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objrefs[entity_name]:setpos({
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x = pos.x - values.dx * depth + values.rx * right,
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y = pos.y - top,
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z = pos.z - values.dz * depth + values.rz * right})
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objrefs[entity_name]:setyaw(values.yaw)
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end
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end
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return objrefs
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end
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||||
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--- Entity update
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function update_entity(entity)
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if not entity then
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return
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end
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|
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if not entity.nodepos then
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entity.object:remove() -- Remove old/buggy entity
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return
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end
|
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|
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local node = minetest.get_node(entity.nodepos)
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local ndef = minetest.registered_nodes[node.name]
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if ndef and ndef.display_entities and
|
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ndef.display_entities[entity.name] and
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ndef.display_entities[entity.name].on_display_update
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then
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-- Call on_display_update callback of a node for one of its display entities
|
||||
ndef.display_entities[entity.name].on_display_update(entity.nodepos,
|
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entity.object)
|
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end
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end
|
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--- Force entity update
|
||||
function display_api.update_entities(pos)
|
||||
for _, objref in pairs(place_entities(pos)) do
|
||||
update_entity(objref:get_luaentity())
|
||||
end
|
||||
end
|
||||
|
||||
--- On_activate callback for display_api entities. Calls on_display_update callbacks
|
||||
--- of corresponding node for each entity.
|
||||
function display_api.on_activate(entity, staticdata)
|
||||
if entity then
|
||||
if string.sub(staticdata, 1, string.len("return")) == "return" then
|
||||
local data = minetest.deserialize(staticdata)
|
||||
if data and type(data) == "table" then
|
||||
entity.nodepos = data.nodepos
|
||||
end
|
||||
entity.object:set_armor_groups({immortal=1})
|
||||
end
|
||||
update_entity(entity)
|
||||
end
|
||||
end
|
||||
|
||||
--- On_place callback for display_api items.
|
||||
-- Does nothing more than preventing node from being placed on ceiling or ground
|
||||
function display_api.on_place(itemstack, placer, pointed_thing, override_param2)
|
||||
local ndef = itemstack:get_definition()
|
||||
local above = pointed_thing.above
|
||||
local under = pointed_thing.under
|
||||
local dir = {x = under.x - above.x, y = 0, z = under.z - above.z}
|
||||
|
||||
-- If item is not placed on a wall, use the player's view direction instead
|
||||
if dir.x == 0 and dir.z == 0 then
|
||||
dir = placer:get_look_dir()
|
||||
dir.y = 0
|
||||
end
|
||||
|
||||
local param2 = 0
|
||||
if ndef then
|
||||
local paramtype2 = ndef.paramtype2
|
||||
if paramtype2 == "wallmounted" or paramtype2 == "colorwallmounted" then
|
||||
param2 = minetest.dir_to_wallmounted(dir)
|
||||
elseif paramtype2 == "facedir" or paramtype2 == "colorfacedir" then
|
||||
param2 = minetest.dir_to_facedir(dir)
|
||||
end
|
||||
end
|
||||
return minetest.item_place(itemstack, placer, pointed_thing,
|
||||
param2 + (override_param2 or 0))
|
||||
end
|
||||
|
||||
--- On_construct callback for display_api items.
|
||||
-- Creates entities and update them.
|
||||
function display_api.on_construct(pos)
|
||||
display_api.update_entities(pos)
|
||||
end
|
||||
|
||||
--- On_destruct callback for display_api items.
|
||||
-- Removes entities.
|
||||
function display_api.on_destruct(pos)
|
||||
for _, objref in pairs(get_entities(pos)) do
|
||||
objref:remove()
|
||||
end
|
||||
end
|
||||
|
||||
-- On_rotate (screwdriver) callback for display_api items. Prevents invalid rotations and reorients entities.
|
||||
function display_api.on_rotate(pos, node, user, _, new_param2)
|
||||
node.param2 = new_param2
|
||||
if get_values(node) then
|
||||
minetest.swap_node(pos, node)
|
||||
place_entities(pos)
|
||||
return true
|
||||
else
|
||||
return false
|
||||
end
|
||||
end
|
||||
|
||||
--- Creates display entity with some fields and the on_activate callback
|
||||
function display_api.register_display_entity(entity_name)
|
||||
if not minetest.registered_entity then
|
||||
minetest.register_entity(':'..entity_name, {
|
||||
collisionbox = { 0, 0, 0, 0, 0, 0 },
|
||||
visual = "upright_sprite",
|
||||
textures = {},
|
||||
on_activate = display_api.on_activate,
|
||||
get_staticdata = function(self)
|
||||
return minetest.serialize({ nodepos = self.nodepos })
|
||||
end,
|
||||
})
|
||||
end
|
||||
end
|
||||
|
||||
minetest.register_lbm({
|
||||
label = "Update display_api entities",
|
||||
name = "display_api:update_entities",
|
||||
run_at_every_load = true,
|
||||
nodenames = {"group:display_modpack_node", "group:display_lib_node"},
|
||||
action = function(pos, node) display_api.update_entities(pos) end,
|
||||
})
|
||||
|
||||
-- Compatibility
|
||||
display_lib = display_api
|
||||
dofile(display_api.path.."/display.lua")
|
||||
dofile(display_api.path.."/deprecation.lua")
|
||||
|
||||
Loading…
Reference in New Issue
Block a user