CatChow0
389cde97c2
Adds functionality to control the target FPS of the engine via the ImGui settings panel. This includes: - Adding target FPS variables and accessors in the application class. - Adding a set_target_fps function to the fps_limiter class. - Updating the ImGui engine settings panel to include a target FPS setting. - Modifying the main loop to make use of the fps limiter and the engine target FPS.
40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
#pragma once
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#include <chrono>
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class fps_limiter {
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public:
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/**
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* Constructor for fps_limiter class
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* @param target_fps Target frames per second for the limiter. Default is 60.0f FPS.
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*/
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explicit fps_limiter(const float target_fps = 60.0f)
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: min_delta_(1.0f / target_fps), last_time_(std::chrono::high_resolution_clock::now()) {}
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/**
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* Function to check if enough time has passed since the last execution.
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* @return True if the time since the last call is greater than or equal to the minimum delta time, otherwise false.
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*/
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bool should_run() {
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const auto now = std::chrono::high_resolution_clock::now();
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if (const float elapsed = std::chrono::duration<float>(now - last_time_).count(); elapsed >= min_delta_) {
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last_time_ = now;
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return true;
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}
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return false;
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}
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/**
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* Dynamically set the target FPS limit.
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* @param target_fps New target frames per second.
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*/
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void set_target_fps(float target_fps) {
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if (target_fps > 0.0f) {
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min_delta_ = 1.0f / target_fps;
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}
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}
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private:
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float min_delta_; // Minimum time in seconds between frames
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std::chrono::high_resolution_clock::time_point last_time_; // Time point of last allowed execution
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};
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