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add on_replace function (thanks wuzzy)

pull/87/merge
TenPlus1 4 years ago
parent
commit
f78f7c3059
  1. 22
      api.lua
  2. 13
      api.txt

22
api.lua

@ -944,12 +944,23 @@ local replace = function(self, pos)
-- print ("replace node = ".. minetest.get_node(pos).name, pos.y)
minetest.set_node(pos, {name = with})
local oldnode = {name = what}
local newnode = {name = with}
local on_replace_return
-- when cow/sheep eats grass, replace wool and milk
if self.gotten == true then
self.gotten = false
self.object:set_properties(self)
if self.on_replace then
on_replace_return = self.on_replace(self, pos, oldnode, newnode)
end
if on_replace_return ~= false then
minetest.set_node(pos, {name = with})
-- when cow/sheep eats grass, replace wool and milk
if self.gotten == true then
self.gotten = false
self.object:set_properties(self)
end
end
end
end
@ -2599,6 +2610,7 @@ minetest.register_entity(name, {
replace_what = def.replace_what,
replace_with = def.replace_with,
replace_offset = def.replace_offset or 0,
on_replace = def.on_replace,
timer = 0,
env_damage_timer = 0, -- only used when state = "attack"
tamed = false,

13
api.txt

@ -1,5 +1,5 @@
MOB API (2nd July 2017)
MOB API (4th July 2017)
The mob api is a function that can be called on by other mods to add new animals or monsters into minetest.
@ -105,12 +105,21 @@ This functions registers a new mob as a Minetest entity.
'explode' sound when exploding
'distance' maximum distance sounds are heard from (default is 10)
Mobs can look for specific nodes as they walk and replace them to mimic eating
Mobs can look for specific nodes as they walk and replace them to mimic eating.
'replace_what' group if items to replace e.g. {"farming:wheat_8", "farming:carrot_8"}
'replace_with' replace with what e.g. "air" or in chickens case "mobs:egg"
'replace_rate' how random should the replace rate be (typically 10)
'replace_offset' +/- value to check specific node to replace
'on_replace(self, pos, oldnode, newnode)' gets called when mob is about to replace a node
self: ObjectRef of mob
pos: Position of node to replace
oldnode: Current node
newnode: What the node will become after replacing
If false is returned, the mob will not replace the node.
By default, replacing sets self.gotten to true and resets the object properties.
The 'replace_what' has been updated to use tables for what, with and y_offset e.g.

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