hypr-dynamic-cursors/src/other/Shake.hpp

#include "src/helpers/AnimatedVariable.hpp"
#include <hyprutils/math/Vector2D.hpp>
#include <vector>

#define IPC_SHAKE_START "shakestart"
#define IPC_SHAKE_UPDATE "shakeupdate"
#define IPC_SHAKE_END "shakeend"

using namespace Hyprutils::Math;
using namespace std::chrono;

class CShake {
  public:
    CShake();
    ~CShake();

    /* calculates the new zoom factor for the current pos */
    double update(Vector2D pos);
    /* called when a cursor warp has happened (to avoid magnifying on warps) */
    void warp(Vector2D old, Vector2D pos);

  private:
    /* tracks whether the current shake has already been announced in the ipc */
    bool ipc = false;

    bool started = false;
    CAnimatedVariable<float> zoom;
    steady_clock::time_point end;

    /* ringbuffer for last samples */
    std::vector<Vector2D> samples;
    /* we also store the distance for each sample to the last, so we do only compute this once */
    std::vector<double> samples_distance;
    int samples_index = 0;
};