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authorZak <zakscomputers@hotmail.com>2019-12-11 19:54:15 +0200
committerZak <zakscomputers@hotmail.com>2019-12-13 11:17:12 +0200
commit0fd7186971594a975cb4947e95f770798ae2f5c6 (patch)
tree59de83c120d4d73644f2c97d346c68d5f679fa48 /modules/gdscript/doc_classes
parentcd9d5132854e239726a08098d9029bdd00eee752 (diff)
Fix documentation for yield
#33872 PR was misleading as i though inheritance from GDScriptFunctionState was optional.
Diffstat (limited to 'modules/gdscript/doc_classes')
-rw-r--r--modules/gdscript/doc_classes/@GDScript.xml27
1 files changed, 15 insertions, 12 deletions
diff --git a/modules/gdscript/doc_classes/@GDScript.xml b/modules/gdscript/doc_classes/@GDScript.xml
index d1f52d2422..42fc9ddda8 100644
--- a/modules/gdscript/doc_classes/@GDScript.xml
+++ b/modules/gdscript/doc_classes/@GDScript.xml
@@ -1367,23 +1367,26 @@
You can also use [code]yield[/code] to wait for a function to finish:
[codeblock]
func _ready():
- yield(do_something(), "completed")
- yield(do_something_else(), "completed")
- print("All functions are done!")
+ yield(countdown(), "completed") # waiting for the countdown() function to complete
+ print('Ready')
- func do_something():
- print("Something is done!")
-
- func do_something_else():
- print("Something else is done!")
+ func countdown():
+ yield(get_tree(), "idle_frame") # returns a GDScriptFunctionState object to _ready()
+ print(3)
+ yield(get_tree().create_timer(1.0), "timeout")
+ print(2)
+ yield(get_tree().create_timer(1.0), "timeout")
+ print(1)
+ yield(get_tree().create_timer(1.0), "timeout")
# prints:
- # Something is done!
- # Something else is done!
- # All functions are done!
+ # 3
+ # 2
+ # 1
+ # Ready
[/codeblock]
When yielding on a function, the [code]completed[/code] signal will be emitted automatically when the function returns. It can, therefore, be used as the [code]signal[/code] parameter of the [code]yield[/code] method to resume.
- If you are planning on calling the same function within a loop, you should consider using [code]yield(get_tree(), "idle_frame")[/code] also.
+ In order to yield on a function, the resulting function should also return a [code]GDScriptFunctionState[/code]. Notice [code]yield(get_tree(), "idle_frame")[/code] from the above example.
</description>
</method>
</methods>