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Diffstat (limited to 'src/crepe/api/LoopTimer.cpp')
-rw-r--r--src/crepe/api/LoopTimer.cpp95
1 files changed, 46 insertions, 49 deletions
diff --git a/src/crepe/api/LoopTimer.cpp b/src/crepe/api/LoopTimer.cpp
index 039e35e..8f09e41 100644
--- a/src/crepe/api/LoopTimer.cpp
+++ b/src/crepe/api/LoopTimer.cpp
@@ -7,83 +7,80 @@
using namespace crepe;
-LoopTimer::LoopTimer() {
- dbg_trace();
-}
+LoopTimer::LoopTimer() { dbg_trace(); }
LoopTimer & LoopTimer::get_instance() {
- static LoopTimer instance;
- return instance;
+ static LoopTimer instance;
+ return instance;
}
void LoopTimer::start() {
- this->last_frame_time = std::chrono::steady_clock::now();
- this->elapsed_time = std::chrono::milliseconds(0);
- this->elapsed_fixed_time = std::chrono::milliseconds(0);
- this->delta_time = std::chrono::milliseconds(0);
+ this->last_frame_time = std::chrono::steady_clock::now();
+ this->elapsed_time = std::chrono::milliseconds(0);
+ this->elapsed_fixed_time = std::chrono::milliseconds(0);
+ this->delta_time = std::chrono::milliseconds(0);
}
void LoopTimer::update() {
- auto current_frame_time = std::chrono::steady_clock::now();
- // Convert to duration in seconds for delta time
- this->delta_time = std::chrono::duration_cast<std::chrono::duration<double>>(current_frame_time - last_frame_time);
-
- if (this->delta_time > this->maximum_delta_time) {
- this->delta_time = this->maximum_delta_time;
- }
-
- this->delta_time *= this->game_scale;
- this->elapsed_time += this->delta_time;
- this->last_frame_time = current_frame_time;
+ auto current_frame_time = std::chrono::steady_clock::now();
+ // Convert to duration in seconds for delta time
+ this->delta_time
+ = std::chrono::duration_cast<std::chrono::duration<double>>(
+ current_frame_time - last_frame_time);
+
+ if (this->delta_time > this->maximum_delta_time) {
+ this->delta_time = this->maximum_delta_time;
+ }
+
+ this->delta_time *= this->game_scale;
+ this->elapsed_time += this->delta_time;
+ this->last_frame_time = current_frame_time;
}
-double LoopTimer::get_delta_time() const {
- return this->delta_time.count();
-}
+double LoopTimer::get_delta_time() const { return this->delta_time.count(); }
double LoopTimer::get_current_time() const {
- return this->elapsed_time.count();
+ return this->elapsed_time.count();
}
void LoopTimer::advance_fixed_update() {
- this->elapsed_fixed_time += this->fixed_delta_time;
+ this->elapsed_fixed_time += this->fixed_delta_time;
}
double LoopTimer::get_fixed_delta_time() const {
- return this->fixed_delta_time.count();
+ return this->fixed_delta_time.count();
}
void LoopTimer::set_fps(int fps) {
- this->fps = fps;
+ this->fps = fps;
// target time per frame in seconds
- this->frame_target_time = std::chrono::seconds(1) / fps;
+ this->frame_target_time = std::chrono::seconds(1) / fps;
}
-int LoopTimer::get_fps() const {
- return this->fps;
-}
+int LoopTimer::get_fps() const { return this->fps; }
-void LoopTimer::set_game_scale(double value) {
- this->game_scale = value;
-}
+void LoopTimer::set_game_scale(double value) { this->game_scale = value; }
-double LoopTimer::get_game_scale() const {
- return this->game_scale;
-}
+double LoopTimer::get_game_scale() const { return this->game_scale; }
void LoopTimer::enforce_frame_rate() {
- std::chrono::steady_clock::time_point current_frame_time = std::chrono::steady_clock::now();
- std::chrono::milliseconds frame_duration = std::chrono::duration_cast<std::chrono::milliseconds>(current_frame_time - this->last_frame_time);
-
- if (frame_duration < this->frame_target_time) {
- std::chrono::milliseconds delay_time = std::chrono::duration_cast<std::chrono::milliseconds>(this->frame_target_time - frame_duration);
- if (delay_time.count() > 0) {
- SDLContext::get_instance().delay(delay_time.count());
- }
- }
-
- this->last_frame_time = current_frame_time;
+ std::chrono::steady_clock::time_point current_frame_time
+ = std::chrono::steady_clock::now();
+ std::chrono::milliseconds frame_duration
+ = std::chrono::duration_cast<std::chrono::milliseconds>(
+ current_frame_time - this->last_frame_time);
+
+ if (frame_duration < this->frame_target_time) {
+ std::chrono::milliseconds delay_time
+ = std::chrono::duration_cast<std::chrono::milliseconds>(
+ this->frame_target_time - frame_duration);
+ if (delay_time.count() > 0) {
+ SDLContext::get_instance().delay(delay_time.count());
+ }
+ }
+
+ this->last_frame_time = current_frame_time;
}
double LoopTimer::get_lag() const {
- return (this->elapsed_time - this->elapsed_fixed_time).count();
+ return (this->elapsed_time - this->elapsed_fixed_time).count();
}