mirror of
https://github.com/pyrollo/display_modpack.git
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Merge branch 'master' into dev
This commit is contained in:
Pierre-Yves Rollo
commit
b3c935768f
22
API.md
22
API.md
|
|
@ -11,7 +11,7 @@ This method triggers entities update for the display node at pos. Actual entity
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|||
### register\_display\_entity
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**display\_lib.register\_display\_entity(entity_name)**
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||||
This is a helper to register entities used for display.
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This is a helper to register entities used for display.
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||||
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||||
`entity_name`: Name of the entity to register.
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## Provided callback implementations
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||||
|
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@ -26,7 +26,7 @@ This is a helper to register entities used for display.
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|||
### on_destruct
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**display\_lib.on_destruct(pos)**
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`on_destruct` node callback implementation. Display nodes should have this callback (removes display entities on node destruction).
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`on_destruct` node callback implementation. Display nodes should have this callback (removes display entities on node destruction).
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### on_rotate
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**display\_lib.on\_rotate(pos, node, user, mode, new_param2)**
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@ -34,22 +34,20 @@ This is a helper to register entities used for display.
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### on_activate
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**display\_lib.on_activate(entity, staticdata)**
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`On_activate` entity callback implementation for display entities. No need of this method if display entities have been registered using `register_display_entity` (callback is already set).
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`On_activate` entity callback implementation for display entities. No need of this method if display entities have been registered using `register_display_entity` (callback is already set).
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## Howto register a display node
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* Register display entities with `register_display_entity`
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* Register node with :
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- `on_place`, `on_construct`, `on_destruct` and `on_rotate` callbacks using display_api callbacks.
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- `display_modpack_node` group. This will make this node have their entities updated as soon as the mapblock is loaded (Useful after /clearobjects).
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- `display_api` group. This will make this node have their entities updated as soon as the mapblock is loaded (Useful after /clearobjects).
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- a `display_entities` field in node definition containing a entity name indexed table. See below for description of each display_entities fields.
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### Display_entities fields
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`on_display_update` is a callback in charge of setting up entity texture. If not set, entity will have no texture and will be displayed as unknown item.
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`depth`, `right` and `height` : Entity position regarding to node facedir/wallmounted main axis.
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`depth`, `right` and `height`: Entity position regarding to node facedir/wallmounted main axis.
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Values for these fields can be any number between -1.5 and 1.5 (default value is 0).
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Position 0,0,0 is the center of the node.
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`depth` goes from front (-0.5) to rear (0.5), `height` goes from bottom (-0.5) to top (0.5) and `right` goes from left (-0.5) to right (0.5).
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@ -61,12 +59,12 @@ In order to avoid flickering text, it's better to have text a little behind node
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display_api.register_display_entity("mymod:entity1")
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display_api.register_display_entity("mymod:entity2")
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function my_display_update1(pos, objref)
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function my_display_update1(pos, objref)
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objref:set_properties({ textures= {"mytexture1.png"},
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visual_size = {x=1, y=1} })
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end
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|
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function my_display_update2(pos, objref)
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function my_display_update2(pos, objref)
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objref:set_properties({ textures= {"mytexture2.png"},
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visual_size = {x=1, y=1} })
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end
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|
|
@ -75,13 +73,13 @@ In order to avoid flickering text, it's better to have text a little behind node
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...
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paramtype2 = "facedir",
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||||
...
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groups = { display_modpack_node = 1, ... },
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groups = { display_api = 1, ... },
|
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...
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display_entities = {
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["mymod:entity1"] = {
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["mymod:entity1"] = {
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depth = 0.3,
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on_display_update = my_display_update1 },
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["mymod:entity1"] = {
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["mymod:entity1"] = {
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depth = 0.2, height = 0.1,
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on_display_update = my_display_update2 },
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},
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||||
|
|
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|||
72
deprecation.lua
Normal file
72
deprecation.lua
Normal file
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|
@ -0,0 +1,72 @@
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|||
--[[
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||||
display_api mod for Minetest - Library to add dynamic display
|
||||
capabilities to nodes
|
||||
(c) Pierre-Yves Rollo
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
--]]
|
||||
|
||||
-- Deprecation
|
||||
|
||||
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
|
||||
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
|
||||
end
|
||||
end
|
||||
|
||||
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.")
|
||||
assert(type(replacement_global_name) == 'string', "replacement_global_name should be a string.")
|
||||
assert(deprecated_global_name ~= '', "deprecated_global_name should not be empty.")
|
||||
assert(replacement_global_name ~= '', "replacement_global_name should not be empty.")
|
||||
assert(rawget(_G, deprecated_global_name) == nil, "replacement global already exists.")
|
||||
if _G[replacement_global_name] == nil then
|
||||
print('warn_deprecated_functions: Warning, replacement global "'..replacement_global_name..'" does not exists.')
|
||||
return
|
||||
end
|
||||
local meta = {
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deprecated = deprecated_global_name,
|
||||
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)))
|
||||
return _G[meta.replacement][key]
|
||||
end,
|
||||
__newindex = function(table, key, value)
|
||||
local meta = getmetatable(table)
|
||||
local dbg = debug.getinfo(2, "lS")
|
||||
minetest.log("warning", string.format('Warning: Accessing deprecated "%s" table, "%s" should be used instead (%s:%d).',
|
||||
meta.deprecated, meta.replacement, (dbg.short_src or 'unknown'), (dbg.currentline or 0)))
|
||||
_G[meta.replacement][key]=value
|
||||
end,
|
||||
}
|
||||
rawset(_G, deprecated_global_name, {})
|
||||
setmetatable(_G[deprecated_global_name], meta)
|
||||
end
|
||||
|
||||
|
||||
-- deprecated(1) -- December 2018 - Deprecation of groups display_modpack_node and display_lib_node
|
||||
-- Group to be removed from display API register_lbm
|
||||
minetest.after(0, function()
|
||||
deprecated_group("display_modpack_node", "display_api")
|
||||
deprecated_group("display_lib_node", "display_api")
|
||||
end)
|
||||
|
||||
-- deprecated(2) -- December 2018 - Deprecation of display_lib
|
||||
deprecated_global_table('display_lib', 'display_api')
|
||||
239
display.lua
Normal file
239
display.lua
Normal file
|
|
@ -0,0 +1,239 @@
|
|||
--[[
|
||||
display_api mod for Minetest - Library to add dynamic display
|
||||
capabilities to nodes
|
||||
(c) Pierre-Yves Rollo
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
--]]
|
||||
|
||||
-- Prefered gap between node and entity
|
||||
-- Entity positionment is up to mods but it is a good practice to use this
|
||||
-- variable as spacing between entity and node
|
||||
display_api.entity_spacing = 0.002
|
||||
|
||||
-- Maximum entity position relative to the node pos
|
||||
local max_entity_pos = 1.5
|
||||
|
||||
-- Miscelaneous values depending on wallmounted param2
|
||||
local wallmounted_values = {
|
||||
[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 },
|
||||
[4]={dx=0, dz=-1, rx=1, rz=0, yaw=0 },
|
||||
[5]={dx=0, dz=1, rx=-1, rz=0, yaw=math.pi }
|
||||
}
|
||||
|
||||
-- Miscelaneous values depending on facedir param2
|
||||
local facedir_values = {
|
||||
[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},
|
||||
[2]={dx=0, dz=1, rx=-1, rz=0, yaw=math.pi },
|
||||
[3]={dx=1, dz=0, rx=0, rz=1, yaw=math.pi/2 }
|
||||
}
|
||||
|
||||
-- dx/dy = depth vector, rx/ly = right vector, yaw = yaw of entity,
|
||||
local function get_values(node)
|
||||
local ndef = minetest.registered_nodes[node.name]
|
||||
|
||||
if ndef then
|
||||
local paramtype2 = ndef.paramtype2
|
||||
if paramtype2 == "wallmounted" or paramtype2 == "colorwallmounted" then
|
||||
return wallmounted_values[node.param2 % 8]
|
||||
elseif paramtype2 == "facedir" or paramtype2 == "colorfacedir" then
|
||||
return facedir_values[node.param2 % 32]
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
--- Gets the display entities attached with a node. Removes extra ones
|
||||
local function get_entities(pos)
|
||||
local objrefs = {}
|
||||
local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
|
||||
if ndef and ndef.display_entities then
|
||||
for _, objref in
|
||||
ipairs(minetest.get_objects_inside_radius(pos, max_entity_pos)) do
|
||||
local entity = objref:get_luaentity()
|
||||
if entity and ndef.display_entities[entity.name] and
|
||||
entity.nodepos and vector.equals(pos, entity.nodepos) then
|
||||
if objrefs[entity.name] then
|
||||
objref:remove() -- Remove duplicates
|
||||
else
|
||||
objrefs[entity.name] = objref
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
return objrefs
|
||||
end
|
||||
|
||||
local function clip_pos_prop(posprop)
|
||||
if posprop then
|
||||
return math.max(-max_entity_pos, math.min(max_entity_pos, posprop))
|
||||
else
|
||||
return 0
|
||||
end
|
||||
end
|
||||
|
||||
--- (Create and) place display entities according to the node orientation
|
||||
local function place_entities(pos)
|
||||
local node = minetest.get_node(pos)
|
||||
local ndef = minetest.registered_nodes[node.name]
|
||||
local values = get_values(node)
|
||||
local objrefs = get_entities(pos)
|
||||
|
||||
if values and ndef and ndef.display_entities then
|
||||
for entity_name, props in pairs(ndef.display_entities) do
|
||||
local depth = clip_pos_prop(props.depth)
|
||||
local right = clip_pos_prop(props.right)
|
||||
local top = clip_pos_prop(props.top)
|
||||
if not objrefs[entity_name] then
|
||||
objrefs[entity_name] = minetest.add_entity(pos, entity_name,
|
||||
minetest.serialize({ nodepos = pos }))
|
||||
end
|
||||
|
||||
objrefs[entity_name]:setpos({
|
||||
x = pos.x - values.dx * depth + values.rx * right,
|
||||
y = pos.y - top,
|
||||
z = pos.z - values.dz * depth + values.rz * right})
|
||||
|
||||
objrefs[entity_name]:setyaw(values.yaw)
|
||||
end
|
||||
end
|
||||
return objrefs
|
||||
end
|
||||
|
||||
|
||||
--- Entity update
|
||||
function update_entity(entity)
|
||||
if not entity then
|
||||
return
|
||||
end
|
||||
|
||||
if not entity.nodepos then
|
||||
entity.object:remove() -- Remove old/buggy entity
|
||||
return
|
||||
end
|
||||
|
||||
local node = minetest.get_node(entity.nodepos)
|
||||
local ndef = minetest.registered_nodes[node.name]
|
||||
if ndef and ndef.display_entities and
|
||||
ndef.display_entities[entity.name] and
|
||||
ndef.display_entities[entity.name].on_display_update
|
||||
then
|
||||
-- Call on_display_update callback of a node for one of its display entities
|
||||
ndef.display_entities[entity.name].on_display_update(entity.nodepos,
|
||||
entity.object)
|
||||
else
|
||||
-- Display node has been removed, remove entity also
|
||||
entity.object:remove()
|
||||
end
|
||||
end
|
||||
|
||||
--- 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_entities[entity_name] 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_api",
|
||||
"group:display_modpack_node", "group:display_lib_node"}, -- See deprecated(1)
|
||||
action = function(pos, node) display_api.update_entities(pos) end,
|
||||
})
|
||||
253
init.lua
253
init.lua
|
|
@ -1,240 +1,31 @@
|
|||
--[[
|
||||
display_api mod for Minetest - Library to add dynamic display
|
||||
capabilities to nodes
|
||||
(c) Pierre-Yves Rollo
|
||||
display_api mod for Minetest - Library to add dynamic display
|
||||
capabilities to nodes
|
||||
(c) Pierre-Yves Rollo
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
--]]
|
||||
|
||||
-- Global variables
|
||||
-------------------
|
||||
|
||||
display_api = {}
|
||||
display_api.name = minetest.get_current_modname()
|
||||
display_api.path = minetest.get_modpath(display_api.name)
|
||||
|
||||
-- Prefered gap between node and entity
|
||||
-- Entity positionment is up to mods but it is a good practice to use this
|
||||
-- variable as spacing between entity and node
|
||||
display_api.entity_spacing = 0.002
|
||||
-- Inclusions
|
||||
-------------
|
||||
|
||||
-- Maximum entity position relative to the node pos
|
||||
local max_entity_pos = 1.5
|
||||
|
||||
-- Miscelaneous values depending on wallmounted param2
|
||||
local wallmounted_values = {
|
||||
[2]={dx=-1, dz=0, rx=0, rz=-1, yaw=-math.pi/2},
|
||||
[3]={dx=1, dz=0, rx=0, rz=1, yaw=math.pi/2 },
|
||||
[4]={dx=0, dz=-1, rx=1, rz=0, yaw=0 },
|
||||
[5]={dx=0, dz=1, rx=-1, rz=0, yaw=math.pi }
|
||||
}
|
||||
|
||||
-- Miscelaneous values depending on facedir param2
|
||||
local facedir_values = {
|
||||
[0]={dx=0, dz=-1, rx=1, rz=0, yaw=0 },
|
||||
[1]={dx=-1, dz=0, rx=0, rz=-1, yaw=-math.pi/2},
|
||||
[2]={dx=0, dz=1, rx=-1, rz=0, yaw=math.pi },
|
||||
[3]={dx=1, dz=0, rx=0, rz=1, yaw=math.pi/2 }
|
||||
}
|
||||
|
||||
-- dx/dy = depth vector, rx/ly = right vector, yaw = yaw of entity,
|
||||
local function get_values(node)
|
||||
local ndef = minetest.registered_nodes[node.name]
|
||||
|
||||
if ndef then
|
||||
local paramtype2 = ndef.paramtype2
|
||||
if paramtype2 == "wallmounted" or paramtype2 == "colorwallmounted" then
|
||||
return wallmounted_values[node.param2 % 8]
|
||||
elseif paramtype2 == "facedir" or paramtype2 == "colorfacedir" then
|
||||
return facedir_values[node.param2 % 32]
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
--- Gets the display entities attached with a node. Removes extra ones
|
||||
local function get_entities(pos)
|
||||
local objrefs = {}
|
||||
local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
|
||||
if ndef and ndef.display_entities then
|
||||
for _, objref in
|
||||
ipairs(minetest.get_objects_inside_radius(pos, max_entity_pos)) do
|
||||
local entity = objref:get_luaentity()
|
||||
if entity and ndef.display_entities[entity.name] and
|
||||
entity.nodepos and vector.equals(pos, entity.nodepos) then
|
||||
if objrefs[entity.name] then
|
||||
objref:remove() -- Remove duplicates
|
||||
else
|
||||
objrefs[entity.name] = objref
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
return objrefs
|
||||
end
|
||||
|
||||
local function clip_pos_prop(posprop)
|
||||
if posprop then
|
||||
return math.max(-max_entity_pos, math.min(max_entity_pos, posprop))
|
||||
else
|
||||
return 0
|
||||
end
|
||||
end
|
||||
|
||||
--- (Create and) place display entities according to the node orientation
|
||||
local function place_entities(pos)
|
||||
local node = minetest.get_node(pos)
|
||||
local ndef = minetest.registered_nodes[node.name]
|
||||
local values = get_values(node)
|
||||
local objrefs = get_entities(pos)
|
||||
|
||||
if values and ndef and ndef.display_entities then
|
||||
for entity_name, props in pairs(ndef.display_entities) do
|
||||
local depth = clip_pos_prop(props.depth)
|
||||
local right = clip_pos_prop(props.right)
|
||||
local top = clip_pos_prop(props.top)
|
||||
if not objrefs[entity_name] then
|
||||
objrefs[entity_name] = minetest.add_entity(pos, entity_name,
|
||||
minetest.serialize({ nodepos = pos }))
|
||||
end
|
||||
|
||||
objrefs[entity_name]:setpos({
|
||||
x = pos.x - values.dx * depth + values.rx * right,
|
||||
y = pos.y - top,
|
||||
z = pos.z - values.dz * depth + values.rz * right})
|
||||
|
||||
objrefs[entity_name]:setyaw(values.yaw)
|
||||
end
|
||||
end
|
||||
return objrefs
|
||||
end
|
||||
|
||||
|
||||
--- Entity update
|
||||
function update_entity(entity)
|
||||
if not entity then
|
||||
return
|
||||
end
|
||||
|
||||
if not entity.nodepos then
|
||||
entity.object:remove() -- Remove old/buggy entity
|
||||
return
|
||||
end
|
||||
|
||||
local node = minetest.get_node(entity.nodepos)
|
||||
local ndef = minetest.registered_nodes[node.name]
|
||||
if ndef and ndef.display_entities and
|
||||
ndef.display_entities[entity.name] and
|
||||
ndef.display_entities[entity.name].on_display_update
|
||||
then
|
||||
-- Call on_display_update callback of a node for one of its display entities
|
||||
ndef.display_entities[entity.name].on_display_update(entity.nodepos,
|
||||
entity.object)
|
||||
end
|
||||
end
|
||||
|
||||
--- 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