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Prevent errors if Tween callback's object is freed

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This commit is contained in:
kobewi 2023-08-29 14:45:36 +02:00
parent 247c3548d8
commit 598d9972c8
3 changed files with 10 additions and 0 deletions
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1
doc/classes/CallbackTweener.xml
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@ -5,6 +5,7 @@
</brief_description>
<description>
[CallbackTweener] is used to call a method in a tweening sequence. See [method Tween.tween_callback] for more usage information.
The tweener will finish automatically if the callback's target object is freed.
[b]Note:[/b] [method Tween.tween_callback] is the only correct way to create [CallbackTweener]. Any [CallbackTweener] created manually will not function correctly.
</description>
<tutorials>

1
doc/classes/MethodTweener.xml
View file

@ -5,6 +5,7 @@
</brief_description>
<description>
[MethodTweener] is similar to a combination of [CallbackTweener] and [PropertyTweener]. It calls a method providing an interpolated value as a parameter. See [method Tween.tween_method] for more usage information.
The tweener will finish automatically if the callback's target object is freed.
[b]Note:[/b] [method Tween.tween_method] is the only correct way to create [MethodTweener]. Any [MethodTweener] created manually will not function correctly.
</description>
<tutorials>

8
scene/animation/tween.cpp
View file

@ -675,6 +675,10 @@ bool CallbackTweener::step(double &r_delta) {
return false;
}
if (!callback.get_object()) {
return false;
}
elapsed_time += r_delta;
if (elapsed_time >= delay) {
Variant result;
@ -736,6 +740,10 @@ bool MethodTweener::step(double &r_delta) {
return false;
}
if (!callback.get_object()) {
return false;
}
elapsed_time += r_delta;
if (elapsed_time < delay) {