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Clarify the meaning of "rightclick"/"use" in documentation (#11471)

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doc/lua_api.txt
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@ -2097,7 +2097,9 @@ Node metadata contains two things:
Some of the values in the key-value store are handled specially:
* `formspec`: Defines a right-click inventory menu. See [Formspec].
* `formspec`: Defines an inventory menu that is opened with the
'place/use' key. Only works if no `on_rightclick` was
defined for the node. See also [Formspec].
* `infotext`: Text shown on the screen when the node is pointed at
Example:
@ -4400,6 +4402,9 @@ Callbacks:
* Called when the object dies.
* `killer`: an `ObjectRef` (can be `nil`)
* `on_rightclick(self, clicker)`
* Called when `clicker` pressed the 'place/use' key while pointing
to the object (not neccessarily an actual rightclick)
* `clicker`: an `ObjectRef` (may or may not be a player)
* `on_attach_child(self, child)`
* `child`: an `ObjectRef` of the child that attaches
* `on_detach_child(self, child)`
@ -4786,9 +4791,10 @@ Call these functions only at load time!
* `damage`: Number that represents the damage calculated by the engine
* should return `true` to prevent the default damage mechanism
* `minetest.register_on_rightclickplayer(function(player, clicker))`
* Called when a player is right-clicked
* `player`: ObjectRef - Player that was right-clicked
* `clicker`: ObjectRef - Object that right-clicked, may or may not be a player
* Called when the 'place/use' key was used while pointing a player
(not neccessarily an actual rightclick)
* `player`: ObjectRef - Player that is acted upon
* `clicker`: ObjectRef - Object that acted upon `player`, may or may not be a player
* `minetest.register_on_player_hpchange(function(player, hp_change, reason), modifier)`
* Called when the player gets damaged or healed
* `player`: ObjectRef of the player
@ -7493,6 +7499,8 @@ Used by `minetest.register_node`, `minetest.register_craftitem`, and
},
on_place = function(itemstack, placer, pointed_thing),
-- When the 'place' key was pressed with the item in hand
-- and a node was pointed at.
-- Shall place item and return the leftover itemstack.
-- The placer may be any ObjectRef or nil.
-- default: minetest.item_place
@ -7509,6 +7517,7 @@ Used by `minetest.register_node`, `minetest.register_craftitem`, and
on_use = function(itemstack, user, pointed_thing),
-- default: nil
-- When user pressed the 'punch/mine' key with the item in hand.
-- Function must return either nil if no item shall be removed from
-- inventory, or an itemstack to replace the original itemstack.
-- e.g. itemstack:take_item(); return itemstack
@ -7858,9 +7867,9 @@ Used by `minetest.register_node`.
on_rightclick = function(pos, node, clicker, itemstack, pointed_thing),
-- default: nil
-- Called when clicker (an ObjectRef) "rightclicks"
-- ("rightclick" here stands for the placement key) while pointing at
-- the node at pos with 'node' being the node table.
-- Called when clicker (an ObjectRef) used the 'place/build' key
-- (not neccessarily an actual rightclick)
-- while pointing at the node at pos with 'node' being the node table.
-- itemstack will hold clicker's wielded item.
-- Shall return the leftover itemstack.
-- Note: pointed_thing can be nil, if a mod calls this function.