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Merge pull request #53589 from Calinou/timer-low-wait-time-add-warning

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Rémi Verschelde 2021-10-09 10:57:56 +02:00 committed by GitHub
commit ab5e7d1b86
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3 changed files with 15 additions and 1 deletions
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3
doc/classes/Timer.xml
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@ -51,7 +51,8 @@
[b]Note:[/b] You cannot set this value. To change the timer's remaining time, use [method start].
</member>
<member name="wait_time" type="float" setter="set_wait_time" getter="get_wait_time" default="1.0">
Wait time in seconds.
The wait time in seconds.
[b]Note:[/b] Timers can only emit once per rendered frame at most (or once per physics frame if [member process_callback] is [constant TIMER_PROCESS_PHYSICS). This means very low wait times (lower than 0.05 seconds) will behave in significantly different ways depending on the rendered framerate. For very low wait times, it is recommended to use a process loop in a script instead of using a Timer node.
</member>
</members>
<signals>

11
scene/main/timer.cpp
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@ -82,6 +82,7 @@ void Timer::_notification(int p_what) {
void Timer::set_wait_time(double p_time) {
ERR_FAIL_COND_MSG(p_time <= 0, "Time should be greater than zero.");
wait_time = p_time;
update_configuration_warnings();
}
double Timer::get_wait_time() const {
@ -179,6 +180,16 @@ void Timer::_set_process(bool p_process, bool p_force) {
processing = p_process;
}
TypedArray<String> Timer::get_configuration_warnings() const {
TypedArray<String> warnings = Node::get_configuration_warnings();
if (wait_time < 0.05 - CMP_EPSILON) {
warnings.push_back(TTR("Very low timer wait times (< 0.05 seconds) may behave in significantly different ways depending on the rendered or physics frame rate.\nConsider using a script's process loop instead of relying on a Timer for very low wait times."));
}
return warnings;
}
void Timer::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_wait_time", "time_sec"), &Timer::set_wait_time);
ClassDB::bind_method(D_METHOD("get_wait_time"), &Timer::get_wait_time);

2
scene/main/timer.h
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@ -73,6 +73,8 @@ public:
double get_time_left() const;
TypedArray<String> get_configuration_warnings() const override;
void set_timer_process_callback(TimerProcessCallback p_callback);
TimerProcessCallback get_timer_process_callback() const;
Timer();