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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski //
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// //
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46b572b5
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Leszek Koltunski
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// This file is part of Distorted. //
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d333eb6b
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Leszek Koltunski
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// //
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46b572b5
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Leszek Koltunski
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// Distorted is free software: you can redistribute it and/or modify //
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d333eb6b
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Leszek Koltunski
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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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46b572b5
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Leszek Koltunski
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// Distorted is distributed in the hope that it will be useful, //
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d333eb6b
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Leszek Koltunski
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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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46b572b5
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Leszek Koltunski
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// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
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d333eb6b
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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a4835695
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Leszek Koltunski
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package org.distorted.library.type;
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6a06a912
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Leszek Koltunski
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import java.util.Vector;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* A 2-dimensional implementation of the Dynamic class to interpolate between a list
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350cc2f5
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* of Static2Ds.
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6a06a912
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*/
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public class Dynamic2D extends Dynamic implements Data2D
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{
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private Vector<Static2D> vv;
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private Static2D prev, curr, next;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// no array bounds checking!
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f871c455
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private void computeVelocity(int c)
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6a06a912
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{
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int p = c>0 ? c-1: numPoints-1;
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int n = c<numPoints-1 ? c+1: 0;
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prev = vv.elementAt(p);
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curr = vv.elementAt(c);
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next = vv.elementAt(n);
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tmp1 = vc.elementAt(c);
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float px = curr.x - prev.x;
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float py = curr.y - prev.y;
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float nx = next.x - curr.x;
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float ny = next.y - curr.y;
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float d = nx*nx+ny*ny;
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if( d>0 )
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{
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float q = (float)Math.sqrt((px*px+py*py)/d);
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if( q>1 )
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{
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tmp1.tangent[0] = nx+px/q;
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tmp1.tangent[1] = ny+py/q;
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}
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else
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{
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tmp1.tangent[0] = px+nx*q;
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tmp1.tangent[1] = py+ny*q;
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}
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}
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else
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{
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tmp1.tangent[0] = 0.0f;
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tmp1.tangent[1] = 0.0f;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void recomputeCache()
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{
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if( numPoints==1 )
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{
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tmp1= vc.elementAt(0);
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curr= vv.elementAt(0);
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tmp1.a[0] = tmp1.a[1] = 0.0f;
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tmp1.b[0] = tmp1.b[1] = 0.0f;
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tmp1.c[0] = curr.x;
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tmp1.c[1] = curr.y;
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tmp1.d[0] = tmp1.d[1] = 0.0f;
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6a06a912
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}
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else if( numPoints==2 )
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{
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tmp1= vc.elementAt(0);
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tmp2= vc.elementAt(1);
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curr= vv.elementAt(0);
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next= vv.elementAt(1);
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tmp1.a[0] = tmp1.a[1] = 0.0f;
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tmp1.b[0] = tmp1.b[1] = 0.0f;
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tmp1.c[0] = next.x - curr.x;
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tmp1.c[1] = next.y - curr.y;
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tmp1.d[0] = curr.x;
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tmp1.d[1] = curr.y;
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tmp2.a[0] = tmp2.a[1] = 0.0f;
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tmp2.b[0] = tmp2.b[1] = 0.0f;
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tmp2.c[0] = curr.x - next.x;
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tmp2.c[1] = curr.y - next.y;
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tmp2.d[0] = next.x;
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tmp2.d[1] = next.y;
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}
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else
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{
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int i, n;
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f871c455
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for(i=0; i<numPoints; i++) computeVelocity(i);
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for(i=0; i<numPoints; i++)
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{
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n = i<numPoints-1 ? i+1:0;
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tmp1= vc.elementAt(i);
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tmp2= vc.elementAt(n);
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curr= vv.elementAt(i);
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next= vv.elementAt(n);
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tmp1.cached[0] = curr.x;
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tmp1.cached[1] = curr.y;
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eaf57f1c
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Leszek Koltunski
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tmp1.a[0] = mConvexity*( 2*curr.x + tmp1.tangent[0] - 2*next.x + tmp2.tangent[0]);
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tmp1.b[0] = mConvexity*(-3*curr.x - 2*tmp1.tangent[0] + 3*next.x - tmp2.tangent[0]);
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tmp1.c[0] = mConvexity*(tmp1.tangent[0]) + (1.0f-mConvexity)*(next.x-curr.x);
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Leszek Koltunski
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tmp1.d[0] = curr.x;
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tmp1.a[1] = mConvexity*( 2*curr.y + tmp1.tangent[1] - 2*next.y + tmp2.tangent[1]);
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tmp1.b[1] = mConvexity*(-3*curr.y - 2*tmp1.tangent[1] + 3*next.y - tmp2.tangent[1]);
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tmp1.c[1] = mConvexity*(tmp1.tangent[1]) + (1.0f-mConvexity)*(next.y-curr.y);
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649544b8
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Leszek Koltunski
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tmp1.d[1] = curr.y;
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6a06a912
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Leszek Koltunski
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}
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}
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cacheDirty = false;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// PUBLIC API
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Default constructor.
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*/
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568b29d8
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Leszek Koltunski
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public Dynamic2D()
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6a06a912
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{
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649544b8
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Leszek Koltunski
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super(0,0.5f,2);
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vv = new Vector<>();
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6a06a912
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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c45c2ab1
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Leszek Koltunski
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* Constructor setting the speed of interpolation and the number of revolutions.
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*
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* What constitutes 'one revolution' depends on the MODE:
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* {@link Dynamic#MODE_LOOP}, {@link Dynamic#MODE_PATH} or {@link Dynamic#MODE_JUMP}.
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8c893ffc
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*
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c45c2ab1
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Leszek Koltunski
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* @param duration number of milliseconds it takes to do one revolution.
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* @param count number of revolutions we will do. Count<=0 means 'infinite'.
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8c893ffc
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Leszek Koltunski
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*/
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public Dynamic2D(int duration, float count)
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{
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171 |
649544b8
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Leszek Koltunski
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super(duration,count,2);
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8c893ffc
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vv = new Vector<>();
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}
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6a06a912
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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568b29d8
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Leszek Koltunski
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* Returns the location'th Static2D.
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6a06a912
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*
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* @param location the index of the Point we are interested in.
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568b29d8
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Leszek Koltunski
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* @return The Static2D, if 0<=location<getNumPoints(), or null otherwise.
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6a06a912
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Leszek Koltunski
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*/
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182 |
568b29d8
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Leszek Koltunski
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public synchronized Static2D getPoint(int location)
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183 |
6a06a912
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{
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184 |
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return (location>=0 && location<numPoints) ? vv.elementAt(location) : null;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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189 |
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* Resets the location'th Point.
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190 |
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*
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191 |
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* @param location the index of the Point we are setting.
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192 |
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* @param x New value of its first float.
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*/
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194 |
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public synchronized void setPoint(int location, float x, float y)
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{
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196 |
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if( location>=0 && location<numPoints )
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{
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198 |
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curr = vv.elementAt(location);
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199 |
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200 |
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if( curr!=null )
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{
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202 |
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curr.set(x,y);
|
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cacheDirty=true;
|
204 |
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}
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205 |
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}
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206 |
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}
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207 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
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209 |
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/**
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210 |
568b29d8
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Leszek Koltunski
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* Adds a new Static2D to the end of our list of Points to interpolate through.
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211 |
6a06a912
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Leszek Koltunski
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* <p>
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212 |
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* Only a reference to the Point gets added to the List; this means that one can add a Point
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213 |
568b29d8
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Leszek Koltunski
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* here, and later on {@link Static2D#set(float,float)} it to some new value and the change
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214 |
6a06a912
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Leszek Koltunski
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* will be seamlessly reflected in the interpolated path.
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215 |
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* <p>
|
216 |
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* A Point can be added multiple times.
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217 |
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*
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218 |
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* @param v The Point to add.
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219 |
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*/
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220 |
568b29d8
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Leszek Koltunski
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public synchronized void add(Static2D v)
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221 |
6a06a912
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Leszek Koltunski
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{
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222 |
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if( v!=null )
|
223 |
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{
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224 |
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vv.add(v);
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225 |
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226 |
291705f6
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Leszek Koltunski
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if( vn!=null ) vn.add(new VectorNoise());
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227 |
6a06a912
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Leszek Koltunski
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228 |
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switch(numPoints)
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{
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230 |
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case 0:
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231 |
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case 1: break;
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232 |
291705f6
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Leszek Koltunski
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case 2: vc.add(new VectorCache());
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233 |
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vc.add(new VectorCache());
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234 |
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vc.add(new VectorCache());
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235 |
6a06a912
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Leszek Koltunski
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break;
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236 |
291705f6
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Leszek Koltunski
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default:vc.add(new VectorCache());
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237 |
6a06a912
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Leszek Koltunski
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}
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238 |
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numPoints++;
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cacheDirty = true;
|
241 |
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}
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242 |
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}
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243 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
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245 |
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/**
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246 |
568b29d8
|
Leszek Koltunski
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* Adds a new Static2D to the location'th place in our List of Points to interpolate through.
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247 |
6a06a912
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Leszek Koltunski
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*
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248 |
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* @param location Index in our List to add the new Point at.
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249 |
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* @param v The Point to add.
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250 |
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*/
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251 |
568b29d8
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Leszek Koltunski
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public synchronized void add(int location, Static2D v)
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252 |
6a06a912
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Leszek Koltunski
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{
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253 |
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if( v!=null )
|
254 |
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{
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255 |
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vv.add(location, v);
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256 |
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257 |
291705f6
|
Leszek Koltunski
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if( vn!=null ) vn.add(new VectorNoise());
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258 |
6a06a912
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Leszek Koltunski
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259 |
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switch(numPoints)
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260 |
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{
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261 |
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case 0:
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262 |
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case 1: break;
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263 |
291705f6
|
Leszek Koltunski
|
case 2: vc.add(new VectorCache());
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264 |
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vc.add(new VectorCache());
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265 |
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vc.add(new VectorCache());
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266 |
6a06a912
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Leszek Koltunski
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break;
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267 |
291705f6
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Leszek Koltunski
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default:vc.add(location,new VectorCache());
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268 |
6a06a912
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Leszek Koltunski
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}
|
269 |
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270 |
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numPoints++;
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271 |
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cacheDirty = true;
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272 |
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}
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273 |
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}
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274 |
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275 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
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276 |
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/**
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277 |
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* Removes all occurrences of Point v from the List of Points to interpolate through.
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278 |
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*
|
279 |
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* @param v The Point to remove.
|
280 |
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* @return <code>true</code> if we have removed at least one Point.
|
281 |
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*/
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282 |
568b29d8
|
Leszek Koltunski
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public synchronized boolean remove(Static2D v)
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283 |
6a06a912
|
Leszek Koltunski
|
{
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284 |
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int n = vv.indexOf(v);
|
285 |
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boolean found = false;
|
286 |
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|
287 |
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while( n>=0 )
|
288 |
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{
|
289 |
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vv.remove(n);
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290 |
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291 |
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if( vn!=null ) vn.remove(0);
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292 |
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293 |
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switch(numPoints)
|
294 |
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{
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295 |
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case 0:
|
296 |
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case 1:
|
297 |
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case 2: break;
|
298 |
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case 3: vc.removeAllElements();
|
299 |
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break;
|
300 |
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default:vc.remove(n);
|
301 |
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}
|
302 |
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303 |
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numPoints--;
|
304 |
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found = true;
|
305 |
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n = vv.indexOf(v);
|
306 |
|
|
}
|
307 |
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308 |
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if( found )
|
309 |
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{
|
310 |
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cacheDirty=true;
|
311 |
|
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}
|
312 |
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313 |
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return found;
|
314 |
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}
|
315 |
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316 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
|
317 |
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/**
|
318 |
|
|
* Removes a location'th Point from the List of Points we interpolate through.
|
319 |
|
|
*
|
320 |
|
|
* @param location index of the Point we want to remove.
|
321 |
|
|
* @return <code>true</code> if location is valid, i.e. if 0<=location<getNumPoints().
|
322 |
|
|
*/
|
323 |
|
|
public synchronized boolean remove(int location)
|
324 |
|
|
{
|
325 |
|
|
if( location>=0 && location<numPoints )
|
326 |
|
|
{
|
327 |
|
|
vv.removeElementAt(location);
|
328 |
|
|
|
329 |
|
|
if( vn!=null ) vn.remove(0);
|
330 |
|
|
|
331 |
|
|
switch(numPoints)
|
332 |
|
|
{
|
333 |
|
|
case 0:
|
334 |
|
|
case 1:
|
335 |
|
|
case 2: break;
|
336 |
|
|
case 3: vc.removeAllElements();
|
337 |
|
|
break;
|
338 |
|
|
default:vc.removeElementAt(location);
|
339 |
|
|
}
|
340 |
|
|
|
341 |
|
|
numPoints--;
|
342 |
|
|
cacheDirty = true;
|
343 |
|
|
return true;
|
344 |
|
|
}
|
345 |
|
|
|
346 |
|
|
return false;
|
347 |
|
|
}
|
348 |
|
|
|
349 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
350 |
|
|
/**
|
351 |
|
|
* Removes all Points.
|
352 |
|
|
*/
|
353 |
|
|
public synchronized void removeAll()
|
354 |
|
|
{
|
355 |
|
|
numPoints = 0;
|
356 |
|
|
vv.removeAllElements();
|
357 |
|
|
vc.removeAllElements();
|
358 |
|
|
cacheDirty = false;
|
359 |
|
|
|
360 |
|
|
if( vn!=null ) vn.removeAllElements();
|
361 |
|
|
}
|
362 |
|
|
|
363 |
1e22c248
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
364 |
|
|
/**
|
365 |
|
|
* Sets the 'smoothness' of interpolation.
|
366 |
|
|
* <p>
|
367 |
|
|
* When Noise=0 (the default), we interpolate between our Points through the most smooth path possible.
|
368 |
|
|
* Increasing noise makes the Dynamic increasingly deviate from this path, pseudo-randomly speeding
|
369 |
|
|
* up and slowing down, etc.
|
370 |
|
|
*
|
371 |
|
|
* @param noise The noise level. Permitted range: 0 <= noise <= 1.
|
372 |
|
|
*/
|
373 |
|
|
|
374 |
|
|
public synchronized void setNoise(Static2D noise)
|
375 |
|
|
{
|
376 |
|
|
if( vn==null )
|
377 |
|
|
{
|
378 |
|
|
vn = new Vector<>();
|
379 |
291705f6
|
Leszek Koltunski
|
for(int i=0; i<numPoints; i++) vn.add(new VectorNoise());
|
380 |
1e22c248
|
Leszek Koltunski
|
|
381 |
|
|
if( mDimension>=2 )
|
382 |
|
|
{
|
383 |
|
|
mFactor = new float[mDimension-1];
|
384 |
|
|
}
|
385 |
|
|
|
386 |
|
|
mNoise = new float[mDimension];
|
387 |
|
|
}
|
388 |
|
|
|
389 |
|
|
if( noise.x<0.0f ) noise.x = 0.0f;
|
390 |
|
|
if( noise.x>1.0f ) noise.x = 1.0f;
|
391 |
|
|
if( noise.y<0.0f ) noise.y = 0.0f;
|
392 |
|
|
if( noise.y>1.0f ) noise.y = 1.0f;
|
393 |
|
|
|
394 |
|
|
mNoise[0] = noise.x;
|
395 |
|
|
mNoise[1] = noise.y;
|
396 |
|
|
}
|
397 |
|
|
|
398 |
6a06a912
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
399 |
bdb341bc
|
Leszek Koltunski
|
|
400 |
c6dec65b
|
Leszek Koltunski
|
synchronized void interpolate(float[] buffer, int offset, float time)
|
401 |
6a06a912
|
Leszek Koltunski
|
{
|
402 |
|
|
switch(numPoints)
|
403 |
|
|
{
|
404 |
|
|
case 0: buffer[offset ] = 0.0f;
|
405 |
|
|
buffer[offset+1] = 0.0f;
|
406 |
|
|
break;
|
407 |
|
|
case 1: curr = vv.elementAt(0);
|
408 |
|
|
buffer[offset ] = curr.x;
|
409 |
|
|
buffer[offset+1] = curr.y;
|
410 |
|
|
break;
|
411 |
|
|
case 2: curr = vv.elementAt(0);
|
412 |
|
|
next = vv.elementAt(1);
|
413 |
291705f6
|
Leszek Koltunski
|
|
414 |
|
|
int segment2= (int)(2*time);
|
415 |
|
|
|
416 |
6a06a912
|
Leszek Koltunski
|
if( mMode==MODE_LOOP || mMode==MODE_PATH ) time = (time>0.5f ? 2-2*time : 2*time);
|
417 |
291705f6
|
Leszek Koltunski
|
|
418 |
6a06a912
|
Leszek Koltunski
|
if( vn!=null )
|
419 |
|
|
{
|
420 |
291705f6
|
Leszek Koltunski
|
if( segment2 != mSegment )
|
421 |
|
|
{
|
422 |
|
|
if(mMode!=MODE_JUMP || mSegment==1) vn.elementAt(0).computeNoise();
|
423 |
|
|
mSegment = segment2;
|
424 |
|
|
}
|
425 |
|
|
|
426 |
6a06a912
|
Leszek Koltunski
|
time = noise(time,0);
|
427 |
|
|
|
428 |
663fea68
|
Leszek Koltunski
|
baseV[1][0] = next.x-curr.x;
|
429 |
|
|
baseV[1][1] = next.y-curr.y;
|
430 |
6a06a912
|
Leszek Koltunski
|
|
431 |
663fea68
|
Leszek Koltunski
|
buffer[offset ] = baseV[1][0]*time + curr.x +baseV[1][1]*mFactor[0];
|
432 |
|
|
buffer[offset+1] = baseV[1][1]*time + curr.y -baseV[1][0]*mFactor[0];
|
433 |
6a06a912
|
Leszek Koltunski
|
}
|
434 |
|
|
else
|
435 |
|
|
{
|
436 |
|
|
buffer[offset ] = (next.x-curr.x)*time + curr.x;
|
437 |
|
|
buffer[offset+1] = (next.y-curr.y)*time + curr.y;
|
438 |
|
|
}
|
439 |
|
|
|
440 |
|
|
break;
|
441 |
|
|
default:float t = time;
|
442 |
291705f6
|
Leszek Koltunski
|
int vecCurr, segment;
|
443 |
|
|
|
444 |
6a06a912
|
Leszek Koltunski
|
switch(mMode)
|
445 |
|
|
{
|
446 |
|
|
case MODE_LOOP: time = time*numPoints;
|
447 |
291705f6
|
Leszek Koltunski
|
segment = (int)time;
|
448 |
|
|
vecCurr = segment;
|
449 |
6a06a912
|
Leszek Koltunski
|
break;
|
450 |
291705f6
|
Leszek Koltunski
|
case MODE_PATH: segment = (int)(2*t*(numPoints-1));
|
451 |
|
|
|
452 |
65d5505f
|
Leszek Koltunski
|
if( t<=0.5f ) // this has to be <= (otherwise when effect ends at t=0.5, then time=1.0
|
453 |
|
|
{ // and end position is slightly not equal to the end point => might not get autodeleted!
|
454 |
291705f6
|
Leszek Koltunski
|
time = 2*t*(numPoints-1);
|
455 |
|
|
vecCurr = segment;
|
456 |
|
|
}
|
457 |
|
|
else
|
458 |
|
|
{
|
459 |
|
|
time = 2*(1-t)*(numPoints-1);
|
460 |
|
|
vecCurr = 2*numPoints-3-segment;
|
461 |
|
|
}
|
462 |
6a06a912
|
Leszek Koltunski
|
break;
|
463 |
|
|
case MODE_JUMP: time = time*(numPoints-1);
|
464 |
291705f6
|
Leszek Koltunski
|
segment = (int)time;
|
465 |
|
|
vecCurr = segment;
|
466 |
6a06a912
|
Leszek Koltunski
|
break;
|
467 |
291705f6
|
Leszek Koltunski
|
default : vecCurr = 0;
|
468 |
|
|
segment = 0;
|
469 |
6a06a912
|
Leszek Koltunski
|
}
|
470 |
291705f6
|
Leszek Koltunski
|
|
471 |
6a06a912
|
Leszek Koltunski
|
if( vecCurr>=0 && vecCurr<numPoints )
|
472 |
291705f6
|
Leszek Koltunski
|
{
|
473 |
|
|
if( cacheDirty ) recomputeCache(); // recompute cache if we have added or remove vectors since last computation
|
474 |
|
|
else if( mSegment!= segment ) // ...or if we have just passed a vector and the vector we are currently flying to has changed
|
475 |
6a06a912
|
Leszek Koltunski
|
{
|
476 |
9dacabea
|
Leszek Koltunski
|
int vecNext = getNext(vecCurr,t);
|
477 |
6a06a912
|
Leszek Koltunski
|
next = vv.elementAt(vecNext);
|
478 |
|
|
tmp2 = vc.elementAt(vecNext);
|
479 |
291705f6
|
Leszek Koltunski
|
|
480 |
75ec369a
|
Leszek Koltunski
|
if( tmp2.cached[0]!=next.x || tmp2.cached[1]!=next.y ) recomputeCache();
|
481 |
6a06a912
|
Leszek Koltunski
|
}
|
482 |
649544b8
|
Leszek Koltunski
|
|
483 |
291705f6
|
Leszek Koltunski
|
if( mSegment!= segment && vn!=null ) vn.elementAt(vecCurr).computeNoise();
|
484 |
|
|
|
485 |
|
|
mSegment = segment;
|
486 |
|
|
|
487 |
|
|
time = time-vecCurr;
|
488 |
649544b8
|
Leszek Koltunski
|
tmp1 = vc.elementAt(vecCurr);
|
489 |
|
|
|
490 |
6a06a912
|
Leszek Koltunski
|
if( vn!=null )
|
491 |
|
|
{
|
492 |
|
|
time = noise(time,vecCurr);
|
493 |
649544b8
|
Leszek Koltunski
|
|
494 |
663fea68
|
Leszek Koltunski
|
baseV[1][0] = (3*tmp1.a[0]*time+2*tmp1.b[0])*time + tmp1.c[0];
|
495 |
|
|
baseV[1][1] = (3*tmp1.a[1]*time+2*tmp1.b[1])*time + tmp1.c[1];
|
496 |
6a06a912
|
Leszek Koltunski
|
|
497 |
65a21c19
|
Leszek Koltunski
|
buffer[offset ]= ((tmp1.a[0]*time+tmp1.b[0])*time+tmp1.c[0])*time+tmp1.d[0] +baseV[1][1]*mFactor[0];
|
498 |
|
|
buffer[offset+1]= ((tmp1.a[1]*time+tmp1.b[1])*time+tmp1.c[1])*time+tmp1.d[1] -baseV[1][0]*mFactor[0];
|
499 |
6a06a912
|
Leszek Koltunski
|
}
|
500 |
|
|
else
|
501 |
|
|
{
|
502 |
649544b8
|
Leszek Koltunski
|
buffer[offset ]= ((tmp1.a[0]*time+tmp1.b[0])*time+tmp1.c[0])*time+tmp1.d[0];
|
503 |
|
|
buffer[offset+1]= ((tmp1.a[1]*time+tmp1.b[1])*time+tmp1.c[1])*time+tmp1.d[1];
|
504 |
6a06a912
|
Leszek Koltunski
|
}
|
505 |
|
|
|
506 |
|
|
break;
|
507 |
|
|
}
|
508 |
|
|
}
|
509 |
|
|
}
|
510 |
|
|
}
|
511 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
512 |
|
|
//
|