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Updated API with new group

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Pierre-Yves Rollo 2018-12-04 17:59:52 +01:00
parent e46ece5ec6
commit 4d8dec3b79
1 changed files with 10 additions and 12 deletions
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display_api/API.md
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@ -11,7 +11,7 @@ This method triggers entities update for the display node at pos. Actual entity
### register\_display\_entity
**display\_lib.register\_display\_entity(entity_name)**
This is a helper to register entities used for display.
This is a helper to register entities used for display.
`entity_name`: Name of the entity to register.
## Provided callback implementations
@ -26,7 +26,7 @@ This is a helper to register entities used for display.
### 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)**
@ -34,22 +34,20 @@ This is a helper to register entities used for display.
### 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 node with :
- `on_place`, `on_construct`, `on_destruct` and `on_rotate` callbacks using display_api callbacks.
 
- `display_modpack_node` group. This will make this node have their entities updated as soon as the mapblock is loaded (Useful after /clearobjects).
 
- `display_api` 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
`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 `height` : Entity position regarding to node facedir/wallmounted main axis.
`depth`, `right` and `height`: Entity position regarding to node facedir/wallmounted main axis.
Values for these fields can be any number between -1.5 and 1.5 (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 `right` goes from left (-0.5) to right (0.5).
@ -61,12 +59,12 @@ In order to avoid flickering text, it's better to have text a little behind node
display_api.register_display_entity("mymod:entity1")
display_api.register_display_entity("mymod:entity2")
function my_display_update1(pos, objref)
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)
function my_display_update2(pos, objref)
objref:set_properties({ textures= {"mytexture2.png"},
                        visual_size = {x=1, y=1} })
end
@ -75,13 +73,13 @@ In order to avoid flickering text, it's better to have text a little behind node
...
paramtype2 = "facedir",
...
groups = { display_modpack_node = 1, ... },
groups = { display_api = 1, ... },
...
display_entities = {
["mymod:entity1"] = {
["mymod:entity1"] = {
depth = 0.3,
on_display_update = my_display_update1 },
["mymod:entity1"] = {
["mymod:entity1"] = {
depth = 0.2, height = 0.1,
on_display_update = my_display_update2 },
},