Help with clone_tree

#1

I am using a GUI interface to generate a little map of each level in my game for the level select screen. I have each level stored as a table (levels are grid shaped), and each entry in the table is a different type of tile. Each tile is represented on-screen by a GUI node. Some of the GUI nodes have parent-child relationships, which allow me to use clipping. I have to move these cloned GUI nodes around and I cannot, for the life of me, figure out how to work with the cloned trees.

here’s what I have for the normal nodes (not trees)

	local tile = gui.clone(gui.get_node("topleft"))
	gui.set_position(tile, pos)
	gui.set_parent(tile, self.levelselectbuttons[levelno], true)
	table.insert(self.tiles[levelno], tile)
	gui.set_layer(tile, "tiles")

but I have spent hours and hours trying to figure out how to do the same for gui_clone.tree(). The table that I get back is difficult to access as it doesn’t have numerical keys, and I am not sure if parent-child relations are being maintained.

…I basically need to work with the cloned tree as if it were a single node, but I am not sure how to access the table created (without numerical keys). Can anyone help?

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#2

Hi 88.josh,

Here is gui with a root and some child nodes.

image
image.png1241×579 39.2 KB

In the guiscript you clone root node:

function init(self)
	local gui_root=gui.get_node("root_node")
	local cloned_gui=gui.clone_tree(gui_root)
	local cloned_root=cloned_gui[hash("root_node")]
	gui.set_position(cloned_root, vmath.vector3(300,300,0))
end

the resulting table is the mapping between original nodes and the cloned ones (https://defold.com/ref/gui/#gui.clone_tree:node)

image
image.png1706×764 86.3 KB

Then you can get the cloned root node from the table and play with it.

The hierarchy is been respected in the clone.

Mobile game.zip (277.6 KB)

Hope this helps :slight_smile:

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