miggor-StreamGraph/classes/deck/nodes/expression_node.gd
Eroax 0716c2f4da Adds Expression Node (#9)
Adds both the Codeblock Descriptor along with the needed update to Port.set_value to allow Callbacks.  + Adds the Expression node which utilizes the Codeblock descriptor.

Co-authored-by: Eroax <eroaxe.business@gmail.com>
Co-authored-by: Lera Elvoé <yagich@poto.cafe>
Reviewed-on: https://codeberg.org/Eroax/Re-DotDeck/pulls/9
2023-11-27 09:21:43 +00:00

36 lines
641 B
GDScript

extends DeckNode
var expr = Expression.new()
func _init():
name = "Expression"
node_type = name.to_snake_case()
description = "A Node holding a block of executable GDScript code."
category = "general"
props_to_serialize = []
add_output_port(DeckType.Types.ANY, "Expression Text", "codeblock")
func _value_request(from_port : int) -> Variant:
var text = get_output_ports()[0].value_callback.call()
var err = expr.parse(text)
if err != OK:
printerr(err)
return null
var res = expr.execute()
if expr.has_execute_failed():
printerr("Expression Execution Failed: ", text)
return null
return res