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library / src / main / java / org / distorted / library / type / Static2D.java @ ece89b28

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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski                                                               //
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//                                                                                               //
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// This file is part of Distorted.                                                               //
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//                                                                                               //
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// Distorted is free software: you can redistribute it and/or modify                             //
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// it under the terms of the GNU General Public License as published by                          //
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// the Free Software Foundation, either version 2 of the License, or                             //
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// (at your option) any later version.                                                           //
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//                                                                                               //
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// Distorted is distributed in the hope that it will be useful,                                  //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //
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// GNU General Public License for more details.                                                  //
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//                                                                                               //
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// You should have received a copy of the GNU General Public License                             //
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// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.library.type;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * A 2-dimensional data structure containing two floats. The floats have no particular meaning; 
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 * when this data structure is used in Dynamics, we can think of it as a 2-dimensional Point
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 * a few of which the Dynamic interpolates between.
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 */
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public class Static2D extends Static implements Data2D
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  {
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  float x,y;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Constructor that initialises the value of the two floats to (ox,oy).   
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 *   
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 * @param ox value of the first float.
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 * @param oy value of the second float.
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 */    
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  public Static2D(float ox, float oy)
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    {
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    super(2);
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    x = ox;
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    y = oy;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Reset the value of the floats to (ox,oy).
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 * 
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 * @param ox new value of the first float
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 * @param oy new value of the seond float
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 */
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  public void set(float ox, float oy)
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    {
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    x = ox;
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    y = oy;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Copy a Static2D.
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 */
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  public void set(Static2D s)
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    {
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    x = s.x;
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    y = s.y;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Resets the value of the first float.
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 *
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 * @param ox new value of the first float.
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 */
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  public void set0(float ox)
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    {
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    x = ox;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Resets the value of the second float.
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 *
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 * @param oy new value of the second float.
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 */
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  public void set1(float oy)
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    {
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    y = oy;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Return the value of the first float contained.
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 *
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 * @return The first float.
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 */
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  public float get0()
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    {
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    return x;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Return the value of the second float contained.
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 * 
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 * @return The second float.
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 */
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  public float get1()
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    {
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    return y;  
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * 'Interpolation' between the single Point (i.e. always this very value) returned to the buffer.
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 *
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 * @param buffer Float buffer we will write the results to.
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 * @param offset Offset in the buffer where to write the result.
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 * @param time not used
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 * @param step not used
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 * @return <code>false</code>
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 */
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  public boolean get(float[] buffer, int offset, long time, long step)
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    {
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    buffer[offset  ] = x;
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    buffer[offset+1] = y;
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    return false;
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    }
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  }