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/*
*  AirstreamFilter.h
*
*  Created by Daisuke Nogami on Sep, 05.
*  opyright 2005 Daisuke Nogami [null-null.net]. Some rights reserved.
*/
 
#pragma once
 
#include <iostream>
#include <cmath>
#include <ctime>
 
// selfmade class
#include "CellSet.h"
 
class AirstreamFilter{
private:
  float wind_dir;
  float wind_speed;
 
  float dirX, dirY;
  float nextDirX, nextDirY;
  float srcY;
  float nextSrcY;
  int timer;
 
  float mass;    // Mass
  float k;    // Spring constant
  float damp;    // Damping
 
  float velx;    // X Velocity
  float vely;    // Y Velocity
  float velsrcy;  // srcY Velocity
  float accel;  // Acceleration
  float force;  // Force
 
public:
  AirstreamFilter();
  void sync( float wind_dir, float wind_spped );
  void update();
  void mappingTo( CellSet* cellset );
};