godot/scene/main/timer.cpp
2023-03-22 23:57:12 +01:00

230 lines
7.6 KiB
C++

/**************************************************************************/
/* timer.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "timer.h"
void Timer::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_READY: {
if (autostart) {
#ifdef TOOLS_ENABLED
if (is_part_of_edited_scene()) {
break;
}
#endif
start();
autostart = false;
}
} break;
case NOTIFICATION_INTERNAL_PROCESS: {
if (!processing || timer_process_callback == TIMER_PROCESS_PHYSICS || !is_processing_internal()) {
return;
}
time_left -= get_process_delta_time();
if (time_left < 0) {
if (!one_shot) {
time_left += wait_time;
} else {
stop();
}
emit_signal(SNAME("timeout"));
}
} break;
case NOTIFICATION_INTERNAL_PHYSICS_PROCESS: {
if (!processing || timer_process_callback == TIMER_PROCESS_IDLE || !is_physics_processing_internal()) {
return;
}
time_left -= get_physics_process_delta_time();
if (time_left < 0) {
if (!one_shot) {
time_left += wait_time;
} else {
stop();
}
emit_signal(SNAME("timeout"));
}
} break;
}
}
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 {
return wait_time;
}
void Timer::set_one_shot(bool p_one_shot) {
one_shot = p_one_shot;
}
bool Timer::is_one_shot() const {
return one_shot;
}
void Timer::set_autostart(bool p_start) {
autostart = p_start;
}
bool Timer::has_autostart() const {
return autostart;
}
void Timer::start(double p_time) {
ERR_FAIL_COND_MSG(!is_inside_tree(), "Timer was not added to the SceneTree. Either add it or set autostart to true.");
if (p_time > 0) {
set_wait_time(p_time);
}
time_left = wait_time;
_set_process(true);
}
void Timer::stop() {
time_left = -1;
_set_process(false);
autostart = false;
}
void Timer::set_paused(bool p_paused) {
if (paused == p_paused) {
return;
}
paused = p_paused;
_set_process(processing);
}
bool Timer::is_paused() const {
return paused;
}
bool Timer::is_stopped() const {
return get_time_left() <= 0;
}
double Timer::get_time_left() const {
return time_left > 0 ? time_left : 0;
}
void Timer::set_timer_process_callback(TimerProcessCallback p_callback) {
if (timer_process_callback == p_callback) {
return;
}
switch (timer_process_callback) {
case TIMER_PROCESS_PHYSICS:
if (is_physics_processing_internal()) {
set_physics_process_internal(false);
set_process_internal(true);
}
break;
case TIMER_PROCESS_IDLE:
if (is_processing_internal()) {
set_process_internal(false);
set_physics_process_internal(true);
}
break;
}
timer_process_callback = p_callback;
}
Timer::TimerProcessCallback Timer::get_timer_process_callback() const {
return timer_process_callback;
}
void Timer::_set_process(bool p_process, bool p_force) {
switch (timer_process_callback) {
case TIMER_PROCESS_PHYSICS:
set_physics_process_internal(p_process && !paused);
break;
case TIMER_PROCESS_IDLE:
set_process_internal(p_process && !paused);
break;
}
processing = p_process;
}
PackedStringArray Timer::get_configuration_warnings() const {
PackedStringArray warnings = Node::get_configuration_warnings();
if (wait_time < 0.05 - CMP_EPSILON) {
warnings.push_back(RTR("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);
ClassDB::bind_method(D_METHOD("set_one_shot", "enable"), &Timer::set_one_shot);
ClassDB::bind_method(D_METHOD("is_one_shot"), &Timer::is_one_shot);
ClassDB::bind_method(D_METHOD("set_autostart", "enable"), &Timer::set_autostart);
ClassDB::bind_method(D_METHOD("has_autostart"), &Timer::has_autostart);
ClassDB::bind_method(D_METHOD("start", "time_sec"), &Timer::start, DEFVAL(-1));
ClassDB::bind_method(D_METHOD("stop"), &Timer::stop);
ClassDB::bind_method(D_METHOD("set_paused", "paused"), &Timer::set_paused);
ClassDB::bind_method(D_METHOD("is_paused"), &Timer::is_paused);
ClassDB::bind_method(D_METHOD("is_stopped"), &Timer::is_stopped);
ClassDB::bind_method(D_METHOD("get_time_left"), &Timer::get_time_left);
ClassDB::bind_method(D_METHOD("set_timer_process_callback", "callback"), &Timer::set_timer_process_callback);
ClassDB::bind_method(D_METHOD("get_timer_process_callback"), &Timer::get_timer_process_callback);
ADD_SIGNAL(MethodInfo("timeout"));
ADD_PROPERTY(PropertyInfo(Variant::INT, "process_callback", PROPERTY_HINT_ENUM, "Physics,Idle"), "set_timer_process_callback", "get_timer_process_callback");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "wait_time", PROPERTY_HINT_RANGE, "0.001,4096,0.001,or_greater,exp,suffix:s"), "set_wait_time", "get_wait_time");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "one_shot"), "set_one_shot", "is_one_shot");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "autostart"), "set_autostart", "has_autostart");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "paused", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "set_paused", "is_paused");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "time_left", PROPERTY_HINT_NONE, "suffix:s", PROPERTY_USAGE_NONE), "", "get_time_left");
BIND_ENUM_CONSTANT(TIMER_PROCESS_PHYSICS);
BIND_ENUM_CONSTANT(TIMER_PROCESS_IDLE);
}
Timer::Timer() {}