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add on_replace function (thanks wuzzy)

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TenPlus1 2017-07-04 20:12:57 +01:00
parent bad4dcb36f
commit f78f7c3059
2 changed files with 28 additions and 7 deletions
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12
api.lua
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@ -944,6 +944,16 @@ local replace = function(self, pos)
-- print ("replace node = ".. minetest.get_node(pos).name, pos.y) -- print ("replace node = ".. minetest.get_node(pos).name, pos.y)
local oldnode = {name = what}
local newnode = {name = with}
local on_replace_return
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}) minetest.set_node(pos, {name = with})
-- when cow/sheep eats grass, replace wool and milk -- when cow/sheep eats grass, replace wool and milk
@ -952,6 +962,7 @@ local replace = function(self, pos)
self.object:set_properties(self) self.object:set_properties(self)
end end
end end
end
end end
@ -2599,6 +2610,7 @@ minetest.register_entity(name, {
replace_what = def.replace_what, replace_what = def.replace_what,
replace_with = def.replace_with, replace_with = def.replace_with,
replace_offset = def.replace_offset or 0, replace_offset = def.replace_offset or 0,
on_replace = def.on_replace,
timer = 0, timer = 0,
env_damage_timer = 0, -- only used when state = "attack" env_damage_timer = 0, -- only used when state = "attack"
tamed = false, tamed = false,

13
api.txt
View File

@ -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. 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 'explode' sound when exploding
'distance' maximum distance sounds are heard from (default is 10) '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_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_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_rate' how random should the replace rate be (typically 10)
'replace_offset' +/- value to check specific node to replace '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. The 'replace_what' has been updated to use tables for what, with and y_offset e.g.