西风逍遥游
dd3541750f
- Added new methods for event polling and handling in the Event module, including `pollName` for retrieving message names. - Introduced new graphics functions for clearing the screen and drawing solid rectangles with RGBA support. - Updated the Window module to expose new settings and graphics functionalities. - Refactored the main script to utilize the new graphics and event features, improving the example game structure.
50 lines
1.1 KiB
C++
50 lines
1.1 KiB
C++
#include "timer/Timer.h"
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#include <simplesquirrel/simplesquirrel.hpp>
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#include <SDL2/SDL.h>
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namespace eve::timer {
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Module_IMPL(Timer, new Timer());
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Timer::Timer() {
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SDL_InitSubSystem(SDL_INIT_TIMER);
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freq_ = SDL_GetPerformanceFrequency();
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start_ = SDL_GetPerformanceCounter();
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prev_ = start_;
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delta_ = 0.f;
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}
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float Timer::getTime() const {
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if (freq_ == 0) return 0.f;
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return float(double(SDL_GetPerformanceCounter() - start_) / double(freq_));
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}
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float Timer::getDelta() const { return delta_; }
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float Timer::step() {
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if (freq_ == 0) {
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delta_ = 0.f;
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return delta_;
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}
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uint64_t now = SDL_GetPerformanceCounter();
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delta_ = float(double(now - prev_) / double(freq_));
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prev_ = now;
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return delta_;
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}
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void Timer::expose(ssq::Table& table) {
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auto cls = table.addClass(name, Timer::create, false);
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expose(cls);
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}
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void Timer::expose(ssq::Class& cls) {
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cls.addFunc("getName", &Timer::getName);
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cls.addFunc("getTime", &Timer::getTime);
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cls.addFunc("getDelta", &Timer::getDelta);
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cls.addFunc("step", &Timer::step);
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}
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} // namespace eve::timer
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