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ClassLuaUndoRedoStacknew

The undo queue for a player. The term item_index refers to the index of an undo item in the queue, while action_index refers to the index of one of the individual actions that make up an undo item.

Members

get_undo_item(index) → array[UndoRedoAction]

Gets an undo item from the undo stack.

Gets an undo item from the undo stack.

get_undo_item_count() → uint

The number undo items in the undo stack.

The number undo items in the undo stack.

remove_undo_item(index)

Removes an undo item from the undo stack.

Removes an undo item from the undo stack.

remove_undo_action(item_index, action_index)

Removes an undo action from the specified undo item on the undo stack.

Removes an undo action from the specified undo item on the undo stack.

get_redo_item(index) → array[UndoRedoAction]

Gets an undo item from the redo stack.

Gets an undo item from the redo stack.

get_redo_item_count() → uint

The number of undo items in the redo stack.

The number of undo items in the redo stack.

remove_redo_item(index)

Removes an undo item from the redo stack.

Removes an undo item from the redo stack.

remove_redo_action(item_index, action_index)

Removes an undo action from the specified undo item on the redo stack.

Removes an undo action from the specified undo item on the redo stack.

get_undo_tags(item_index, action_index) → Tags

Gets all tags for the given undo action.

Gets all tags for the given undo action.

get_undo_tag(item_index, action_index, tag_name) → AnyBasic

Gets the tag with the given name from a specific undo item action, or nil if it doesn't exist.

Gets the tag with the given name from a specific undo item action, or nil if it doesn't exist.

set_undo_tag(item_index, action_index, tag_name, tag)

Sets a new tag with the given name and value on the specified undo item action.

Sets a new tag with the given name and value on the specified undo item action.

remove_undo_tag(item_index, action_index, tag) → boolean

Removes a tag with the given name from the specified undo item.

Removes a tag with the given name from the specified undo item.

get_redo_tags(item_index, action_index) → Tags

Gets all tags for the given redo action.

Gets all tags for the given redo action.

get_redo_tag(item_index, action_index, tag_name) → AnyBasic

Gets the tag with the given name from a specific redo item action, or nil if it doesn't exist.

Gets the tag with the given name from a specific redo item action, or nil if it doesn't exist.

set_redo_tag(item_index, action_index, tag_name, tag)

Sets a new tag with the given name and value on the specified redo item action.

Sets a new tag with the given name and value on the specified redo item action.

remove_redo_tag(item_index, action_index, tag) → boolean

Removes a tag with the given name from the specified redo item.

Removes a tag with the given name from the specified redo item.

player_index :: R uint

The index of the player to whom this stack belongs to.

The index of the player to whom this stack belongs to.

valid :: R boolean

Is this object valid? [...]

Is this object valid? [...]

object_name :: R string

The class name of this object. [...]

The class name of this object. [...]

Methods

get_undo_item(index) → array[UndoRedoAction]

Gets an undo item from the undo stack.

Parameters

index :: uint

The index of the undo item to get, ordered from most recent to oldest.

The index of the undo item to get, ordered from most recent to oldest.

get_undo_item_count() → uint

The number undo items in the undo stack.

remove_undo_item(index)

Removes an undo item from the undo stack.

Parameters

index :: uint

The index of the undo item to remove, ordered from most recent to oldest.

The index of the undo item to remove, ordered from most recent to oldest.

remove_undo_action(item_index, action_index)

Removes an undo action from the specified undo item on the undo stack.

Parameters

item_index :: uint

The index of the undo item to change, ordered from most recent to oldest.

The index of the undo item to change, ordered from most recent to oldest.

action_index :: uint

The index of the undo action to remove.

The index of the undo action to remove.

get_redo_item(index) → array[UndoRedoAction]

Gets an undo item from the redo stack.

Parameters

index :: uint

The index of the item to get, ordered from most recent to oldest.

The index of the item to get, ordered from most recent to oldest.

get_redo_item_count() → uint

The number of undo items in the redo stack.

remove_redo_item(index)

Removes an undo item from the redo stack.

Parameters

index :: uint

The index of the undo item to remove, ordered from most recent to oldest.

The index of the undo item to remove, ordered from most recent to oldest.

remove_redo_action(item_index, action_index)

Removes an undo action from the specified undo item on the redo stack.

Parameters

item_index :: uint

The index of the undo item to change, ordered from most recent to oldest.

The index of the undo item to change, ordered from most recent to oldest.

action_index :: uint

The index of the undo action to remove.

The index of the undo action to remove.

get_undo_tags(item_index, action_index) → Tags

Gets all tags for the given undo action.

Parameters

item_index :: uint

The index of the undo item, ordered from most recent to oldest.

The index of the undo item, ordered from most recent to oldest.

action_index :: uint

The index of the undo action.

The index of the undo action.

get_undo_tag(item_index, action_index, tag_name) → AnyBasic

Gets the tag with the given name from a specific undo item action, or nil if it doesn't exist.

Parameters

item_index :: uint

The index of the undo item, ordered from most recent to oldest.

The index of the undo item, ordered from most recent to oldest.

action_index :: uint

The index of the undo action.

The index of the undo action.

tag_name :: string

The name of the tag to get.

The name of the tag to get.

set_undo_tag(item_index, action_index, tag_name, tag)

Sets a new tag with the given name and value on the specified undo item action.

Parameters

item_index :: uint

The index of the undo item, ordered from most recent to oldest.

The index of the undo item, ordered from most recent to oldest.

action_index :: uint

The index of the undo action.

The index of the undo action.

tag_name :: string

The name of the tag to set.

The name of the tag to set.

tag :: AnyBasic

The contents of the new tag.

The contents of the new tag.

remove_undo_tag(item_index, action_index, tag) → boolean

Removes a tag with the given name from the specified undo item.

Parameters

item_index :: uint

The index of the undo item, ordered from most recent to oldest.

The index of the undo item, ordered from most recent to oldest.

action_index :: uint

The index of the undo action.

The index of the undo action.

tag :: string

The name of the tag to remove.

The name of the tag to remove.

Return values

→ boolean

Whether the tag existed and was successfully removed.

get_redo_tags(item_index, action_index) → Tags

Gets all tags for the given redo action.

Parameters

item_index :: uint

The index of the redo item, ordered from most recent to oldest.

The index of the redo item, ordered from most recent to oldest.

action_index :: uint

The index of the redo action.

The index of the redo action.

get_redo_tag(item_index, action_index, tag_name) → AnyBasic

Gets the tag with the given name from a specific redo item action, or nil if it doesn't exist.

Parameters

item_index :: uint

The index of the redo item, ordered from most recent to oldest.

The index of the redo item, ordered from most recent to oldest.

action_index :: uint

The index of the redo action.

The index of the redo action.

tag_name :: string

The name of the tag to get.

The name of the tag to get.

set_redo_tag(item_index, action_index, tag_name, tag)

Sets a new tag with the given name and value on the specified redo item action.

Parameters

item_index :: uint

The index of the redo item, ordered from most recent to oldest.

The index of the redo item, ordered from most recent to oldest.

action_index :: uint

The index of the redo action.

The index of the redo action.

tag_name :: string

The name of the tag to set.

The name of the tag to set.

tag :: AnyBasic

The contents of the new tag.

The contents of the new tag.

remove_redo_tag(item_index, action_index, tag) → boolean

Removes a tag with the given name from the specified redo item.

Parameters

item_index :: uint

The index of the redo item, ordered from most recent to oldest.

The index of the redo item, ordered from most recent to oldest.

action_index :: uint

The index of the redo action.

The index of the redo action.

tag :: string

The name of the tag to remove.

The name of the tag to remove.

Return values

→ boolean

Whether the tag existed and was successfully removed.

Attributes

player_index :: Read uint  

The index of the player to whom this stack belongs to.

valid :: Read boolean  

Is this object valid? This Lua object holds a reference to an object within the game engine. It is possible that the game-engine object is removed whilst a mod still holds the corresponding Lua object. If that happens, the object becomes invalid, i.e. this attribute will be false. Mods are advised to check for object validity if any change to the game state might have occurred between the creation of the Lua object and its access.

object_name :: Read string  

The class name of this object. Available even when valid is false. For LuaStruct objects it may also be suffixed with a dotted path to a member of the struct.

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