doc: Sync classref with current source

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Rémi Verschelde 2020-07-28 01:08:44 +02:00
parent 4e825539e5
commit 932b75e247
6 changed files with 21 additions and 58 deletions

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@ -1367,42 +1367,6 @@
[code]wrapi[/code] is more flexible than using the [method posmod] approach by giving the user control over the minimum value.
</description>
</method>
<method name="yield">
<return type="GDScriptFunctionState">
</return>
<argument index="0" name="object" type="Object" default="null">
</argument>
<argument index="1" name="signal" type="String" default="&quot;&quot;">
</argument>
<description>
Stops the function execution and returns the current suspended state to the calling function.
From the caller, call [method GDScriptFunctionState.resume] on the state to resume execution. This invalidates the state. Within the resumed function, [code]yield()[/code] returns whatever was passed to the [code]resume()[/code] function call.
If passed an object and a signal, the execution is resumed when the object emits the given signal. In this case, [code]yield()[/code] returns the argument passed to [code]emit_signal()[/code] if the signal takes only one argument, or an array containing all the arguments passed to [code]emit_signal()[/code] if the signal takes multiple arguments.
You can also use [code]yield[/code] to wait for a function to finish:
[codeblock]
func _ready():
yield(countdown(), "completed") # waiting for the countdown() function to complete
print('Ready')
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:
# 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.
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>
<constants>
<constant name="PI" value="3.141593">