diff options
Diffstat (limited to 'src/crepe/api/LoopTimer.cpp')
-rw-r--r-- | src/crepe/api/LoopTimer.cpp | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/src/crepe/api/LoopTimer.cpp b/src/crepe/api/LoopTimer.cpp deleted file mode 100644 index 15a0e3a..0000000 --- a/src/crepe/api/LoopTimer.cpp +++ /dev/null @@ -1,79 +0,0 @@ -#include <chrono> - -#include "../facade/SDLContext.h" -#include "../util/Log.h" - -#include "LoopTimer.h" - -using namespace crepe; - -LoopTimer::LoopTimer() { dbg_trace(); } - -LoopTimer & LoopTimer::get_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); -} - -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; -} - -double LoopTimer::get_delta_time() const { return this->delta_time.count(); } - -double LoopTimer::get_current_time() const { return this->elapsed_time.count(); } - -void LoopTimer::advance_fixed_update() { this->elapsed_fixed_time += this->fixed_delta_time; } - -double LoopTimer::get_fixed_delta_time() const { return this->fixed_delta_time.count(); } - -void LoopTimer::set_fps(int fps) { - this->fps = fps; - // target time per frame in seconds - this->frame_target_time = std::chrono::duration<double>(1.0) / fps; -} - -int LoopTimer::get_fps() const { return this->fps; } - -void LoopTimer::set_game_scale(double value) { this->game_scale = value; } - -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; -} - -double LoopTimer::get_lag() const { - return (this->elapsed_time - this->elapsed_fixed_time).count(); -} |