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#ifndef MBGL_STYLE_ZOOM_HISTORY
#define MBGL_STYLE_ZOOM_HISTORY
#include <chrono>
#include <cmath>
namespace mbgl {
struct ZoomHistory {
float lastZoom;
float lastIntegerZoom;
std::chrono::steady_clock::time_point lastIntegerZoomTime;
bool first = true;
void update(float z, std::chrono::steady_clock::time_point now) {
if (first) {
first = false;
lastIntegerZoom = std::floor(z);
lastIntegerZoomTime = std::chrono::steady_clock::time_point(std::chrono::steady_clock::duration(0));
lastZoom = z;
}
if (std::floor(lastZoom) < std::floor(z)) {
lastIntegerZoom = std::floor(z);
lastIntegerZoomTime = now;
} else if (std::floor(lastZoom) > std::floor(z)) {
lastIntegerZoom = std::floor(z + 1);
lastIntegerZoomTime = now;
}
lastZoom = z;
}
};
}
#endif
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