forked from mtcontrib/display_modpack
Update display_lib API.md
This commit is contained in:
parent
60e80180c6
commit
9b65804de2
@ -5,9 +5,9 @@ This document describes Display Lib API. Display Lib allows to add a dynamic dis
|
||||
### update\_entities
|
||||
**display\_lib.update\_entities(pos)**
|
||||
|
||||
This method triggers entities update for the display node at pos. Actual entity update is made by **on\_display\_update** callback associated to the entity.
|
||||
This method triggers entities update for the display node at pos. Actual entity update is made by `on\_display\_update` callback associated to the entity.
|
||||
|
||||
**pos**: Position of the node
|
||||
`pos`: Position of the node
|
||||
### register\_display\_entity
|
||||
**display\_lib.register\_display\_entity(entity_name)**
|
||||
|
||||
@ -18,68 +18,72 @@ This is a helper to register entities used for display.
|
||||
### on_place
|
||||
**display\_lib.on\_place(itemstack, placer, pointed\_thing)**
|
||||
|
||||
**On_place** node callback implementation. Display nodes should have this callback (avoid placement of horizontal display node).
|
||||
`On_place` node callback implementation. Display nodes should have this callback (avoid placement of horizontal display node).
|
||||
### on_construct
|
||||
**display\_lib.on\_construct(pos)**
|
||||
|
||||
**On_construct** node callback implementation. Display nodes should have this callback (creates, places and updates display entities on node construction).
|
||||
`On_construct` node callback implementation. Display nodes should have this callback (creates, places and updates display entities on node construction).
|
||||
### on_destruct
|
||||
**display\_lib.on_destruct(pos)**
|
||||
|
||||
**On_destruct** node callback implementation. Display nodes should have this callback (removes display entities on node destruction).
|
||||
`On_destruct` node callback implementation. Display nodes should have this callback (removes display entities on node destruction).
|
||||
### on_rotate
|
||||
**display\_lib.on\_rotate(pos, node, user, mode, new_param2)**
|
||||
|
||||
**On_rotate** node callback implementation. Display nodes should have this callback (restricts rotations and rotates display entities associated with node).
|
||||
`On_rotate` node callback implementation. Display nodes should have this callback (restricts rotations and rotates display entities associated with node).
|
||||
### on_activate
|
||||
**display\_lib.on_activate(entity, staticdata)**
|
||||
|
||||
**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).
|
||||
`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).
|
||||
|
||||
## Howto register a display node
|
||||
* Register display entities with **register\_display\_entity**
|
||||
* Register display entities with `register\_display\_entity`
|
||||
|
||||
* Register node with :
|
||||
- **on\_place**, **on\_construct**, **on\_destruct** and **on\_rotate** callbacks using **display\_lib** callbacks.
|
||||
- a **display\_entities** field in node definition containing a entity name indexed table. See below for description of each display\_entities fields.
|
||||
- `on\_place`, `on\_construc`, `on\_destruc` and `on\_rotat` callbacks using display\_lib callbacks.
|
||||
- `display_lib_node` group. This will make this node have their entities updated as soon as the mapblock is loaded (Useful after /clearobjects).
|
||||
- a `display\_entities` field in node definition containing a entity name indexed table. See below for description of each display\_entities fields.
|
||||
|
||||
### Display_entities fields
|
||||
**depth**, **right** and **height** : Entity position regarding to node facedir/wallmounted main axis. Values for these fields can be any number between -0.5 and 0.5 (default value is 0). Position 0,0,0 is the center of the node. **depth** goes from front (-0.5) to rear (0.5), **height** goes from bottom (-0.5) to top (0.5) and **height** goes from left (-0.5) to right (0.5).
|
||||
`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.
|
||||
|
||||
**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.
|
||||
`depth`, `right` and `heigh` : Entity position regarding to node facedir/wallmounted main axis. Values for these fields can be any number between -0.5 and 0.5 (default value is 0). Position 0,0,0 is the center of the node. `depth` goes from front (-0.5) to rear (0.5), `height` goes from bottom (-0.5) to top (0.5) and `height` goes from left (-0.5) to right (0.5).
|
||||
|
||||
In order to avoid flickering text, it's better to have text a little behind node surface. A good spacing value is given by `display_lib.entity_spacing` variable.
|
||||
|
||||
### Example
|
||||
|
||||
display_lib.register_display_entity("mymod:entity1")
|
||||
display_lib.register_display_entity("mymod:entity2")
|
||||
display_lib.register_display_entity("mymod:entity1")
|
||||
display_lib.register_display_entity("mymod:entity2")
|
||||
|
||||
function my_display_update1(pos, objref)
|
||||
objref:set_properties({ textures= {"mytexture1.png"},
|
||||
visual_size = {x=1, y=1} })
|
||||
end
|
||||
function my_display_update1(pos, objref)
|
||||
objref:set_properties({ textures= {"mytexture1.png"},
|
||||
visual_size = {x=1, y=1} })
|
||||
end
|
||||
|
||||
function my_display_update2(pos, objref)
|
||||
objref:set_properties({ textures= {"mytexture2.png"},
|
||||
visual_size = {x=1, y=1} })
|
||||
end
|
||||
function my_display_update2(pos, objref)
|
||||
objref:set_properties({ textures= {"mytexture2.png"},
|
||||
visual_size = {x=1, y=1} })
|
||||
end
|
||||
|
||||
minetest.register_node("mymod:test_display_node", {
|
||||
...
|
||||
paramtype2 = "wallmounted",
|
||||
...
|
||||
display_entities = {
|
||||
["mymod:entity1"] = { depth = 0.3,
|
||||
on_display_update = my_display_update1},
|
||||
["mymod:entity1"] = { depth = 0.2, height = 0.1,
|
||||
on_display_update = my_display_update2},
|
||||
minetest.register_node("mymod:test_display_node", {
|
||||
...
|
||||
paramtype2 = "facedir",
|
||||
...
|
||||
groups = { display_lib_node = 1, ... },
|
||||
...
|
||||
display_entities = {
|
||||
["mymod:entity1"] = {
|
||||
depth = 0.3,
|
||||
on_display_update = my_display_update1 },
|
||||
["mymod:entity1"] = {
|
||||
depth = 0.2, height = 0.1,
|
||||
on_display_update = my_display_update2 },
|
||||
},
|
||||
...
|
||||
on_place = display_lib.on_place,
|
||||
on_construct = display_lib.on_construct,
|
||||
on_destruct = display_lib.on_destruct,
|
||||
on_rotate = display_lib.on_rotate,
|
||||
...
|
||||
})
|
||||
|
||||
|
||||
**Note:** Nodes in the `display_lib_node` group will have their entities updated as soon as the mapblock is loaded (Useful after /clearobjects).
|
||||
|
||||
|
||||
...
|
||||
on_place = display_lib.on_place,
|
||||
on_construct = display_lib.on_construct,
|
||||
on_destruct = display_lib.on_destruct,
|
||||
on_rotate = display_lib.on_rotate,
|
||||
...
|
||||
})
|
||||
|
Loading…
Reference in New Issue
Block a user