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2c8310b1
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Leszek Koltunski
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski leszek@koltunski.pl //
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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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// 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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2c8310b1
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Leszek Koltunski
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// This library is free software; you can redistribute it and/or //
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// modify it under the terms of the GNU Lesser General Public //
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// License as published by the Free Software Foundation; either //
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// version 2.1 of the License, or (at your option) any later version. //
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d333eb6b
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Leszek Koltunski
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// //
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2c8310b1
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Leszek Koltunski
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// This library 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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2c8310b1
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Leszek Koltunski
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
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// Lesser General Public License for more details. //
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d333eb6b
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Leszek Koltunski
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// //
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2c8310b1
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Leszek Koltunski
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// You should have received a copy of the GNU Lesser General Public //
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// License along with this library; if not, write to the Free Software //
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA //
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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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568b29d8
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Leszek Koltunski
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* A 1-dimensional implementation of the Dynamic class to interpolate between a list
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350cc2f5
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Leszek Koltunski
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* of Static1Ds.
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6a06a912
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Leszek Koltunski
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*/
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568b29d8
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Leszek Koltunski
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public class Dynamic1D extends Dynamic implements Data1D
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6a06a912
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{
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Leszek Koltunski
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private Vector<Static1D> vv;
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private Static1D prev, curr, next;
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6a06a912
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// no array bounds checking!
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f871c455
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Leszek Koltunski
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private void computeVelocity(int c)
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6a06a912
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Leszek Koltunski
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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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tmpCache1 = vc.elementAt(c);
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Leszek Koltunski
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float px = curr.x - prev.x;
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float nx = next.x - curr.x;
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float d = nx*nx;
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if( d>0 )
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{
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float q = (float)Math.sqrt((px*px)/d);
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if( q>1 )
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{
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tmpCache1.velocity[0] = nx+px/q;
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6a06a912
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}
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else
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{
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Leszek Koltunski
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tmpCache1.velocity[0] = px+nx*q;
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6a06a912
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}
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}
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else
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{
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tmpCache1.velocity[0] = 0.0f;
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Leszek Koltunski
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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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tmpCache1 = vc.elementAt(0);
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curr= vv.elementAt(0);
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tmpCache1.a[0] = 0.0f;
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tmpCache1.b[0] = 0.0f;
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tmpCache1.c[0] = curr.x;
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tmpCache1.d[0] = 0.0f;
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6a06a912
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Leszek Koltunski
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}
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else if( numPoints==2 )
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{
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tmpCache1 = vc.elementAt(0);
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tmpCache2 = vc.elementAt(1);
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curr= vv.elementAt(0);
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next= vv.elementAt(1);
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9aabc9eb
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Leszek Koltunski
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tmpCache1.a[0] = 0.0f;
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tmpCache1.b[0] = 0.0f;
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tmpCache1.c[0] = next.x - curr.x;
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tmpCache1.d[0] = curr.x;
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tmpCache2.a[0] = 0.0f;
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tmpCache2.b[0] = 0.0f;
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tmpCache2.c[0] = curr.x - next.x;
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tmpCache2.d[0] = next.x;
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6a06a912
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Leszek Koltunski
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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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Leszek Koltunski
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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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Leszek Koltunski
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tmpCache1 = vc.elementAt(i);
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tmpCache2 = vc.elementAt(n);
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6a06a912
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Leszek Koltunski
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curr= vv.elementAt(i);
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next= vv.elementAt(n);
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9aabc9eb
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Leszek Koltunski
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tmpCache1.cached[0] = curr.x;
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6a06a912
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Leszek Koltunski
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tmpCache1.a[0] = mConvexity*( 2*curr.x + tmpCache1.velocity[0] - 2*next.x + tmpCache2.velocity[0]);
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tmpCache1.b[0] = mConvexity*(-3*curr.x - 2* tmpCache1.velocity[0] + 3*next.x - tmpCache2.velocity[0]);
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tmpCache1.c[0] = mConvexity*(tmpCache1.velocity[0]) + (1.0f-mConvexity)*(next.x-curr.x);
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tmpCache1.d[0] = curr.x;
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if( mSpeedMode==SPEED_MODE_SEGMENT_CONSTANT ) smoothOutSegment(tmpCache1);
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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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140 |
568b29d8
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Leszek Koltunski
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public Dynamic1D()
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141 |
6a06a912
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Leszek Koltunski
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{
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142 |
649544b8
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Leszek Koltunski
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super(0,0.5f,1);
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vv = new Vector<>();
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144 |
6a06a912
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Leszek Koltunski
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}
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145 |
8c893ffc
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Leszek Koltunski
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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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152 |
8c893ffc
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Leszek Koltunski
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*
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153 |
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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155 |
8c893ffc
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Leszek Koltunski
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*/
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public Dynamic1D(int duration, float count)
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{
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158 |
649544b8
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Leszek Koltunski
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super(duration,count,1);
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159 |
8c893ffc
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Leszek Koltunski
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vv = new Vector<>();
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}
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162 |
6a06a912
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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164 |
568b29d8
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Leszek Koltunski
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* Returns the location'th Static1D.
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165 |
6a06a912
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Leszek Koltunski
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*
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166 |
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* @param location the index of the Point we are interested in.
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167 |
568b29d8
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Leszek Koltunski
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* @return The Static1D, if 0<=location<getNumPoints(), or null otherwise.
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168 |
6a06a912
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Leszek Koltunski
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*/
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169 |
568b29d8
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Leszek Koltunski
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public synchronized Static1D getPoint(int location)
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170 |
6a06a912
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Leszek Koltunski
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{
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171 |
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return (location>=0 && location<numPoints) ? vv.elementAt(location) : null;
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}
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173 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Resets the location'th Point.
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*
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178 |
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* @param location the index of the Point we are setting.
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179 |
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* @param x New value of its first float.
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180 |
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*/
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181 |
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public synchronized void setPoint(int location, float x)
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182 |
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{
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183 |
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if( location>=0 && location<numPoints )
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184 |
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{
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185 |
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curr = vv.elementAt(location);
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186 |
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187 |
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if( curr!=null )
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188 |
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{
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189 |
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curr.set(x);
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190 |
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cacheDirty=true;
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191 |
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}
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192 |
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}
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193 |
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}
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194 |
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195 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
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196 |
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/**
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197 |
568b29d8
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Leszek Koltunski
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* Adds a new Static1D to the end of our list of Points to interpolate through.
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198 |
6a06a912
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Leszek Koltunski
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* <p>
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199 |
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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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200 |
568b29d8
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Leszek Koltunski
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* here, and later on {@link Static1D#set(float)} it to some new value and the change will
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201 |
6a06a912
|
Leszek Koltunski
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* be seamlessly reflected in the interpolated path.
|
202 |
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* <p>
|
203 |
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* A Point can be added multiple times.
|
204 |
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*
|
205 |
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* @param v The Point to add.
|
206 |
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*/
|
207 |
568b29d8
|
Leszek Koltunski
|
public synchronized void add(Static1D v)
|
208 |
6a06a912
|
Leszek Koltunski
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{
|
209 |
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if( v!=null )
|
210 |
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{
|
211 |
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vv.add(v);
|
212 |
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213 |
291705f6
|
Leszek Koltunski
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if( vn!=null ) vn.add(new VectorNoise());
|
214 |
6a06a912
|
Leszek Koltunski
|
|
215 |
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switch(numPoints)
|
216 |
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{
|
217 |
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case 0:
|
218 |
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case 1: break;
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219 |
291705f6
|
Leszek Koltunski
|
case 2: vc.add(new VectorCache());
|
220 |
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vc.add(new VectorCache());
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221 |
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vc.add(new VectorCache());
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222 |
6a06a912
|
Leszek Koltunski
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cacheDirty = true;
|
223 |
|
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break;
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224 |
291705f6
|
Leszek Koltunski
|
default:vc.add(new VectorCache());
|
225 |
6a06a912
|
Leszek Koltunski
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cacheDirty = true;
|
226 |
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}
|
227 |
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|
228 |
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numPoints++;
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229 |
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}
|
230 |
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}
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231 |
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232 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
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233 |
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/**
|
234 |
568b29d8
|
Leszek Koltunski
|
* Adds a new Static1D to the location'th place in our List of Points to interpolate through.
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235 |
6a06a912
|
Leszek Koltunski
|
*
|
236 |
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* @param location Index in our List to add the new Point at.
|
237 |
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* @param v The Point to add.
|
238 |
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*/
|
239 |
568b29d8
|
Leszek Koltunski
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public synchronized void add(int location, Static1D v)
|
240 |
6a06a912
|
Leszek Koltunski
|
{
|
241 |
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if( v!=null )
|
242 |
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{
|
243 |
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vv.add(location, v);
|
244 |
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|
245 |
291705f6
|
Leszek Koltunski
|
if( vn!=null ) vn.add(new VectorNoise());
|
246 |
6a06a912
|
Leszek Koltunski
|
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247 |
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switch(numPoints)
|
248 |
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{
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249 |
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case 0:
|
250 |
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case 1: break;
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251 |
291705f6
|
Leszek Koltunski
|
case 2: vc.add(new VectorCache());
|
252 |
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vc.add(new VectorCache());
|
253 |
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vc.add(new VectorCache());
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254 |
6a06a912
|
Leszek Koltunski
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cacheDirty = true;
|
255 |
|
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break;
|
256 |
291705f6
|
Leszek Koltunski
|
default:vc.add(location,new VectorCache());
|
257 |
6a06a912
|
Leszek Koltunski
|
cacheDirty = true;
|
258 |
|
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}
|
259 |
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|
260 |
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numPoints++;
|
261 |
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}
|
262 |
|
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}
|
263 |
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|
264 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
|
265 |
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|
/**
|
266 |
|
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* Removes all occurrences of Point v from the List of Points to interpolate through.
|
267 |
|
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*
|
268 |
|
|
* @param v The Point to remove.
|
269 |
|
|
* @return <code>true</code> if we have removed at least one Point.
|
270 |
|
|
*/
|
271 |
568b29d8
|
Leszek Koltunski
|
public synchronized boolean remove(Static1D v)
|
272 |
6a06a912
|
Leszek Koltunski
|
{
|
273 |
|
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int n = vv.indexOf(v);
|
274 |
|
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boolean found = false;
|
275 |
|
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|
276 |
|
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while( n>=0 )
|
277 |
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{
|
278 |
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vv.remove(n);
|
279 |
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|
280 |
|
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if( vn!=null ) vn.remove(0);
|
281 |
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|
282 |
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switch(numPoints)
|
283 |
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{
|
284 |
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case 0:
|
285 |
|
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case 1:
|
286 |
|
|
case 2: break;
|
287 |
|
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case 3: vc.removeAllElements();
|
288 |
|
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break;
|
289 |
|
|
default:vc.remove(n);
|
290 |
|
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cacheDirty=true;
|
291 |
|
|
}
|
292 |
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|
293 |
|
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numPoints--;
|
294 |
|
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found = true;
|
295 |
|
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n = vv.indexOf(v);
|
296 |
|
|
}
|
297 |
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|
298 |
|
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return found;
|
299 |
|
|
}
|
300 |
|
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|
301 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
302 |
|
|
/**
|
303 |
|
|
* Removes a location'th Point from the List of Points we interpolate through.
|
304 |
|
|
*
|
305 |
|
|
* @param location index of the Point we want to remove.
|
306 |
|
|
* @return <code>true</code> if location is valid, i.e. if 0<=location<getNumPoints().
|
307 |
|
|
*/
|
308 |
|
|
public synchronized boolean remove(int location)
|
309 |
|
|
{
|
310 |
|
|
if( location>=0 && location<numPoints )
|
311 |
|
|
{
|
312 |
|
|
vv.removeElementAt(location);
|
313 |
|
|
|
314 |
|
|
if( vn!=null ) vn.remove(0);
|
315 |
|
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|
316 |
|
|
switch(numPoints)
|
317 |
|
|
{
|
318 |
|
|
case 0:
|
319 |
|
|
case 1:
|
320 |
|
|
case 2: break;
|
321 |
|
|
case 3: vc.removeAllElements();
|
322 |
|
|
break;
|
323 |
|
|
default:vc.removeElementAt(location);
|
324 |
|
|
}
|
325 |
|
|
|
326 |
|
|
numPoints--;
|
327 |
|
|
cacheDirty = true;
|
328 |
|
|
return true;
|
329 |
|
|
}
|
330 |
|
|
|
331 |
|
|
return false;
|
332 |
|
|
}
|
333 |
|
|
|
334 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
335 |
|
|
/**
|
336 |
|
|
* Removes all Points.
|
337 |
|
|
*/
|
338 |
|
|
public synchronized void removeAll()
|
339 |
|
|
{
|
340 |
|
|
numPoints = 0;
|
341 |
|
|
vv.removeAllElements();
|
342 |
|
|
vc.removeAllElements();
|
343 |
|
|
cacheDirty = false;
|
344 |
|
|
|
345 |
|
|
if( vn!=null ) vn.removeAllElements();
|
346 |
|
|
}
|
347 |
1e22c248
|
Leszek Koltunski
|
|
348 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
349 |
|
|
/**
|
350 |
|
|
* Sets the 'smoothness' of interpolation.
|
351 |
|
|
* <p>
|
352 |
|
|
* When Noise=0 (the default), we interpolate between our Points through the most smooth path possible.
|
353 |
|
|
* Increasing noise makes the Dynamic increasingly deviate from this path, pseudo-randomly speeding
|
354 |
|
|
* up and slowing down, etc.
|
355 |
|
|
*
|
356 |
|
|
* @param noise The noise level. Permitted range: 0 <= noise <= 1.
|
357 |
|
|
*/
|
358 |
|
|
|
359 |
|
|
public synchronized void setNoise(Static1D noise)
|
360 |
|
|
{
|
361 |
|
|
if( vn==null )
|
362 |
|
|
{
|
363 |
|
|
vn = new Vector<>();
|
364 |
291705f6
|
Leszek Koltunski
|
for(int i=0; i<numPoints; i++) vn.add(new VectorNoise());
|
365 |
1e22c248
|
Leszek Koltunski
|
|
366 |
|
|
if( mDimension>=2 )
|
367 |
|
|
{
|
368 |
|
|
mFactor = new float[mDimension-1];
|
369 |
|
|
}
|
370 |
|
|
|
371 |
|
|
mNoise = new float[mDimension];
|
372 |
|
|
}
|
373 |
|
|
|
374 |
|
|
if( noise.x<0.0f ) noise.x = 0.0f;
|
375 |
|
|
if( noise.x>1.0f ) noise.x = 1.0f;
|
376 |
|
|
|
377 |
|
|
mNoise[0] = noise.x;
|
378 |
|
|
}
|
379 |
|
|
|
380 |
6a06a912
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
381 |
bdb341bc
|
Leszek Koltunski
|
|
382 |
c6dec65b
|
Leszek Koltunski
|
synchronized void interpolate(float[] buffer, int offset, float time)
|
383 |
6a06a912
|
Leszek Koltunski
|
{
|
384 |
|
|
switch(numPoints)
|
385 |
|
|
{
|
386 |
|
|
case 0: buffer[offset] = 0.0f;
|
387 |
|
|
break;
|
388 |
|
|
case 1: curr = vv.elementAt(0);
|
389 |
|
|
buffer[offset] = curr.x;
|
390 |
|
|
break;
|
391 |
|
|
case 2: curr = vv.elementAt(0);
|
392 |
|
|
next = vv.elementAt(1);
|
393 |
291705f6
|
Leszek Koltunski
|
|
394 |
c0e4d5cf
|
Leszek Koltunski
|
int segment= (int)(2*time);
|
395 |
291705f6
|
Leszek Koltunski
|
|
396 |
6a06a912
|
Leszek Koltunski
|
if( mMode==MODE_LOOP || mMode==MODE_PATH ) time = (time>0.5f ? 2-2*time : 2*time);
|
397 |
291705f6
|
Leszek Koltunski
|
|
398 |
6a06a912
|
Leszek Koltunski
|
if( vn!=null )
|
399 |
|
|
{
|
400 |
c0e4d5cf
|
Leszek Koltunski
|
if( segment != mSegment )
|
401 |
291705f6
|
Leszek Koltunski
|
{
|
402 |
|
|
if(mMode!=MODE_JUMP || mSegment==1) vn.elementAt(0).computeNoise();
|
403 |
c0e4d5cf
|
Leszek Koltunski
|
mSegment = segment;
|
404 |
291705f6
|
Leszek Koltunski
|
}
|
405 |
|
|
|
406 |
6a06a912
|
Leszek Koltunski
|
time = noise(time,0);
|
407 |
|
|
}
|
408 |
|
|
|
409 |
|
|
buffer[offset] = (next.x-curr.x)*time + curr.x;
|
410 |
|
|
break;
|
411 |
d403b466
|
Leszek Koltunski
|
default:computeSegmentAndTime(time);
|
412 |
291705f6
|
Leszek Koltunski
|
|
413 |
d403b466
|
Leszek Koltunski
|
if( mTmpVec>=0 && mTmpVec<numPoints )
|
414 |
6a06a912
|
Leszek Koltunski
|
{
|
415 |
|
|
if( cacheDirty ) recomputeCache(); // recompute cache if we have added or remove vectors since last computation
|
416 |
d403b466
|
Leszek Koltunski
|
else if( mSegment!= mTmpSeg ) // ...or if we have just passed a vector and the vector we are currently flying to has changed
|
417 |
6a06a912
|
Leszek Koltunski
|
{
|
418 |
d403b466
|
Leszek Koltunski
|
int vecNext = getNext(mTmpVec,time);
|
419 |
6a06a912
|
Leszek Koltunski
|
next = vv.elementAt(vecNext);
|
420 |
9aabc9eb
|
Leszek Koltunski
|
tmpCache2 = vc.elementAt(vecNext);
|
421 |
d403b466
|
Leszek Koltunski
|
|
422 |
9aabc9eb
|
Leszek Koltunski
|
if( tmpCache2.cached[0]!=next.x ) recomputeCache();
|
423 |
6a06a912
|
Leszek Koltunski
|
}
|
424 |
291705f6
|
Leszek Koltunski
|
|
425 |
d403b466
|
Leszek Koltunski
|
if( mSegment!= mTmpSeg && vn!=null ) vn.elementAt(mTmpVec).computeNoise();
|
426 |
291705f6
|
Leszek Koltunski
|
|
427 |
d403b466
|
Leszek Koltunski
|
mSegment = mTmpSeg;
|
428 |
|
|
time = mTmpTime-mTmpVec;
|
429 |
|
|
tmpCache1 = vc.elementAt(mTmpVec);
|
430 |
9aabc9eb
|
Leszek Koltunski
|
if( mSpeedMode==SPEED_MODE_SEGMENT_CONSTANT ) time = smoothSpeed(time, tmpCache1);
|
431 |
291705f6
|
Leszek Koltunski
|
|
432 |
6a06a912
|
Leszek Koltunski
|
if( vn!=null )
|
433 |
|
|
{
|
434 |
d403b466
|
Leszek Koltunski
|
time = noise(time,mTmpVec);
|
435 |
6a06a912
|
Leszek Koltunski
|
}
|
436 |
|
|
|
437 |
9aabc9eb
|
Leszek Koltunski
|
buffer[offset] = ((tmpCache1.a[0]*time+ tmpCache1.b[0])*time+ tmpCache1.c[0])*time+ tmpCache1.d[0];
|
438 |
6a06a912
|
Leszek Koltunski
|
break;
|
439 |
|
|
}
|
440 |
|
|
}
|
441 |
|
|
}
|
442 |
|
|
|
443 |
|
|
}
|
444 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
445 |
|
|
//
|