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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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import java.util.Vector;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* A 4-dimensional implementation of the Dynamic class to interpolate between a list
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* of Static4Ds.
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*/
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public class Dynamic4D extends Dynamic implements Data4D
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{
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private Vector<Static4D> vv;
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private Static4D prev, curr, next;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// no array bounds checking!
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private void vec(int c)
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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 pz = curr.z - prev.z;
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float pw = curr.w - prev.w;
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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 nz = next.z - curr.z;
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float nw = next.w - curr.w;
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float d = nx*nx+ny*ny+nz*nz+nw*nw;
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if( d>0 )
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{
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float q = (float)Math.sqrt((px*px+py*py+pz*pz+pw*pw)/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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tmp1.tangent[2] = nz+pz/q;
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tmp1.tangent[3] = nw+pw/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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tmp1.tangent[2] = pz+nz*q;
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tmp1.tangent[3] = pw+nw*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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tmp1.tangent[2] = 0.0f;
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tmp1.tangent[3] = 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] = tmp1.a[2] = tmp1.a[3] = 0.0f;
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tmp1.b[0] = tmp1.b[1] = tmp1.b[2] = tmp1.b[3] = 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.c[2] = curr.z;
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tmp1.c[3] = curr.w;
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tmp1.d[0] = tmp1.d[1] = tmp1.d[3] = tmp1.d[3] = 0.0f;
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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] = tmp1.a[2] = tmp1.a[3] = 0.0f;
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tmp1.b[0] = tmp1.b[1] = tmp1.b[2] = tmp1.b[3] = 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.c[2] = next.z - curr.z;
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tmp1.c[3] = next.w - curr.w;
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tmp1.d[0] = curr.x;
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tmp1.d[1] = curr.y;
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tmp1.d[2] = curr.z;
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tmp1.d[3] = curr.w;
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tmp2.a[0] = tmp2.a[1] = tmp2.a[2] = tmp2.a[3] = 0.0f;
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tmp2.b[0] = tmp2.b[1] = tmp2.b[2] = tmp2.b[3] = 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.c[2] = curr.z - next.z;
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tmp2.c[3] = curr.w - next.w;
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tmp2.d[0] = next.x;
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tmp2.d[1] = next.y;
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tmp2.d[2] = next.z;
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tmp2.d[3] = next.w;
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}
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else
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{
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int i, n;
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for(i=0; i<numPoints; i++) vec(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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tmp1.cached[2] = curr.z;
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tmp1.cached[3] = curr.w;
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tmp1.a[0] = 2*curr.x + tmp1.tangent[0] - 2*next.x + tmp2.tangent[0];
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tmp1.b[0] = -3*curr.x - 2*tmp1.tangent[0] + 3*next.x - tmp2.tangent[0];
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tmp1.c[0] = tmp1.tangent[0];
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tmp1.d[0] = curr.x;
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tmp1.a[1] = 2*curr.y + tmp1.tangent[1] - 2*next.y + tmp2.tangent[1];
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tmp1.b[1] = -3*curr.y - 2*tmp1.tangent[1] + 3*next.y - tmp2.tangent[1];
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tmp1.c[1] = tmp1.tangent[1];
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tmp1.d[1] = curr.y;
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tmp1.a[2] = 2*curr.z + tmp1.tangent[2] - 2*next.z + tmp2.tangent[2];
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tmp1.b[2] = -3*curr.z - 2*tmp1.tangent[2] + 3*next.z - tmp2.tangent[2];
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tmp1.c[2] = tmp1.tangent[2];
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tmp1.d[2] = curr.z;
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tmp1.a[3] = 2*curr.w + tmp1.tangent[3] - 2*next.w + tmp2.tangent[3];
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tmp1.b[3] = -3*curr.w - 2*tmp1.tangent[3] + 3*next.w - tmp2.tangent[3];
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tmp1.c[3] = tmp1.tangent[3];
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tmp1.d[3] = curr.w;
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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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public Dynamic4D()
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{
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super(0,0.5f,4);
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vv = new Vector<>();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Default constructor.
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*
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* @param duration number of milliseconds it takes to do a full loop/path from first vector to the
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* last and back to the first
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* @param count number of loops/paths we will do; mCount = 1.5 means we go from the first vector
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* to the last, back to first, and to the last again.
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*/
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public Dynamic4D(int duration, float count)
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{
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super(duration,count,4);
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vv = new Vector<>();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Returns the location'th Static4D.
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*
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* @param location the index of the Point we are interested in.
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* @return The Static4D, if 0<=location<getNumPoints(), or null otherwise.
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*/
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public synchronized Static4D getPoint(int location)
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{
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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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* Resets the location'th Point.
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*
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* @param location the index of the Point we are setting.
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* @param x New value of its first float.
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*/
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public synchronized void setPoint(int location, float x, float y, float z, float w)
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{
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if( location>=0 && location<numPoints )
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{
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curr = vv.elementAt(location);
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if( curr!=null )
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{
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curr.set(x,y,z,w);
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cacheDirty=true;
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}
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Adds a new Static4D to the end of our list of Points to interpolate through.
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* <p>
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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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* here, and later on {@link Static4D#set(float,float,float,float)} it to some new value and
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* the change will be seamlessly reflected in the interpolated path.
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* <p>
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* A Point can be added multiple times.
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*
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* @param v The Point to add.
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*/
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public synchronized void add(Static4D v)
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{
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if( v!=null )
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{
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vv.add(v);
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if( vn!=null ) vn.add(new VectorNoise());
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switch(numPoints)
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{
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case 0: break;
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case 1: computeOrthonormalBase2(vv.elementAt(0),v);
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break;
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case 2: vc.add(new VectorCache());
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vc.add(new VectorCache());
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vc.add(new VectorCache());
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break;
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default:vc.add(new VectorCache());
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}
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numPoints++;
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cacheDirty = true;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Adds a new Static4D to the location'th place in our List of Points to interpolate through.
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*
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* @param location Index in our List to add the new Point at.
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* @param v The Static4D to add.
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*/
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public synchronized void add(int location, Static4D v)
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{
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if( v!=null )
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{
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vv.add(location, v);
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if( vn!=null ) vn.add(new VectorNoise());
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switch(numPoints)
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{
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case 0: break;
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case 1: computeOrthonormalBase2(vv.elementAt(0),v);
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break;
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case 2: vc.add(new VectorCache());
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vc.add(new VectorCache());
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vc.add(new VectorCache());
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break;
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default:vc.add(location,new VectorCache());
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}
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numPoints++;
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cacheDirty = true;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Removes all occurrences of Point v from the List of Points to interpolate through.
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*
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* @param v The Point to remove.
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* @return <code>true</code> if we have removed at least one Point.
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*/
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public synchronized boolean remove(Static4D v)
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{
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int n = vv.indexOf(v);
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boolean found = false;
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while( n>=0 )
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{
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vv.remove(n);
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if( vn!=null ) vn.remove(0);
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switch(numPoints)
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{
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case 0:
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case 1:
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case 2: break;
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case 3: vc.removeAllElements();
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computeOrthonormalBase2(vv.elementAt(0),vv.elementAt(1));
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break;
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default:vc.remove(n);
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}
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numPoints--;
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found = true;
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n = vv.indexOf(v);
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}
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if( found )
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{
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cacheDirty=true;
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}
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return found;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Removes a location'th Point from the List of Points we interpolate through.
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*
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* @param location index of the Point we want to remove.
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* @return <code>true</code> if location is valid, i.e. if 0<=location<getNumPoints().
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*/
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public synchronized boolean remove(int location)
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{
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if( location>=0 && location<numPoints )
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{
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vv.removeElementAt(location);
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363
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if( vn!=null ) vn.remove(0);
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switch(numPoints)
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{
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case 0:
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case 1:
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case 2: break;
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case 3: vc.removeAllElements();
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computeOrthonormalBase2(vv.elementAt(0),vv.elementAt(1));
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break;
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default:vc.removeElementAt(location);
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}
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numPoints--;
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cacheDirty = true;
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return true;
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380
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}
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381
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return false;
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}
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384
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385
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///////////////////////////////////////////////////////////////////////////////////////////////////
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386
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/**
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387
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* Removes all Points.
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*/
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public synchronized void removeAll()
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{
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numPoints = 0;
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vv.removeAllElements();
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vc.removeAllElements();
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cacheDirty = false;
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395
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396
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if( vn!=null ) vn.removeAllElements();
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}
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398
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|
399
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///////////////////////////////////////////////////////////////////////////////////////////////////
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400
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/**
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401
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* Sets the 'smoothness' of interpolation.
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402
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* <p>
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403
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* When Noise=0 (the default), we interpolate between our Points through the most smooth path possible.
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* Increasing noise makes the Dynamic increasingly deviate from this path, pseudo-randomly speeding
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* up and slowing down, etc.
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*
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* @param noise The noise level. Permitted range: 0 <= noise <= 1.
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*/
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409
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public synchronized void setNoise(Static4D noise)
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411
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{
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412
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if( vn==null )
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413
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{
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vn = new Vector<>();
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for(int i=0; i<numPoints; i++) vn.add(new VectorNoise());
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416
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417
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if( mDimension>=2 )
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{
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mFactor = new float[mDimension-1];
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420
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}
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421
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mNoise = new float[mDimension];
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423
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}
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424
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425
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if( noise.x<0.0f ) noise.x = 0.0f;
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if( noise.x>1.0f ) noise.x = 1.0f;
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427
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if( noise.y<0.0f ) noise.y = 0.0f;
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428
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if( noise.y>1.0f ) noise.y = 1.0f;
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429
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if( noise.z<0.0f ) noise.z = 0.0f;
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430
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if( noise.z>1.0f ) noise.z = 1.0f;
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431
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if( noise.w<0.0f ) noise.w = 0.0f;
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432
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if( noise.w>1.0f ) noise.w = 1.0f;
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433
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434
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mNoise[0] = noise.x;
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435
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mNoise[1] = noise.y;
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436
|
mNoise[2] = noise.z;
|
437
|
mNoise[3] = noise.w;
|
438
|
}
|
439
|
|
440
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
441
|
|
442
|
synchronized void interpolate(float[] buffer, int offset, float time)
|
443
|
{
|
444
|
switch(numPoints)
|
445
|
{
|
446
|
case 0: buffer[offset ] = 0.0f;
|
447
|
buffer[offset+1] = 0.0f;
|
448
|
buffer[offset+2] = 0.0f;
|
449
|
buffer[offset+3] = 0.0f;
|
450
|
break;
|
451
|
case 1: curr = vv.elementAt(0);
|
452
|
buffer[offset ] = curr.x;
|
453
|
buffer[offset+1] = curr.y;
|
454
|
buffer[offset+2] = curr.z;
|
455
|
buffer[offset+3] = curr.w;
|
456
|
break;
|
457
|
case 2: curr = vv.elementAt(0);
|
458
|
next = vv.elementAt(1);
|
459
|
|
460
|
int segment2= (int)(2*time);
|
461
|
|
462
|
if( mMode==MODE_LOOP || mMode==MODE_PATH ) time = (time>0.5f ? 2-2*time : 2*time);
|
463
|
|
464
|
if( vn!=null )
|
465
|
{
|
466
|
if( segment2 != mSegment )
|
467
|
{
|
468
|
if(mMode!=MODE_JUMP || mSegment==1) vn.elementAt(0).computeNoise();
|
469
|
mSegment = segment2;
|
470
|
}
|
471
|
|
472
|
time = noise(time,0);
|
473
|
|
474
|
buffer[offset ] = (next.x-curr.x)*time + curr.x + (baseV[1][0]*mFactor[0] + baseV[2][0]*mFactor[1] + baseV[3][0]*mFactor[2]);
|
475
|
buffer[offset+1] = (next.y-curr.y)*time + curr.y + (baseV[1][1]*mFactor[0] + baseV[2][1]*mFactor[1] + baseV[3][1]*mFactor[2]);
|
476
|
buffer[offset+2] = (next.z-curr.z)*time + curr.z + (baseV[1][2]*mFactor[0] + baseV[2][2]*mFactor[1] + baseV[3][2]*mFactor[2]);
|
477
|
buffer[offset+3] = (next.w-curr.w)*time + curr.w + (baseV[1][3]*mFactor[0] + baseV[2][3]*mFactor[1] + baseV[3][3]*mFactor[2]);
|
478
|
}
|
479
|
else
|
480
|
{
|
481
|
buffer[offset ] = (next.x-curr.x)*time + curr.x;
|
482
|
buffer[offset+1] = (next.y-curr.y)*time + curr.y;
|
483
|
buffer[offset+2] = (next.z-curr.z)*time + curr.z;
|
484
|
buffer[offset+3] = (next.w-curr.w)*time + curr.w;
|
485
|
}
|
486
|
|
487
|
break;
|
488
|
default:float t = time;
|
489
|
int vecCurr, segment;
|
490
|
|
491
|
switch(mMode)
|
492
|
{
|
493
|
case MODE_LOOP: time = time*numPoints;
|
494
|
segment = (int)time;
|
495
|
vecCurr = segment;
|
496
|
break;
|
497
|
case MODE_PATH: segment = (int)(2*t*(numPoints-1));
|
498
|
|
499
|
if( t<=0.5f ) // this has to be <= (otherwise when effect ends at t=0.5, then time=1.0
|
500
|
{ // and end position is slightly not equal to the end point => might not get autodeleted!
|
501
|
time = 2*t*(numPoints-1);
|
502
|
vecCurr = segment;
|
503
|
}
|
504
|
else
|
505
|
{
|
506
|
time = 2*(1-t)*(numPoints-1);
|
507
|
vecCurr = 2*numPoints-3-segment;
|
508
|
}
|
509
|
break;
|
510
|
case MODE_JUMP: time = time*(numPoints-1);
|
511
|
segment = (int)time;
|
512
|
vecCurr = segment;
|
513
|
break;
|
514
|
default : vecCurr = 0;
|
515
|
segment = 0;
|
516
|
}
|
517
|
|
518
|
if( vecCurr>=0 && vecCurr<numPoints )
|
519
|
{
|
520
|
if( cacheDirty ) recomputeCache(); // recompute cache if we have added or remove vectors since last computation
|
521
|
else if( mSegment!= segment ) // ...or if we have just passed a vector and the vector we are currently flying to has changed
|
522
|
{
|
523
|
int vecNext;
|
524
|
|
525
|
switch(mMode)
|
526
|
{
|
527
|
case MODE_LOOP: vecNext = vecCurr==numPoints-1 ? 0:vecCurr+1;
|
528
|
break;
|
529
|
case MODE_PATH: if( t<=0.5f ) vecNext = vecCurr==numPoints-1 ? numPoints-2: vecCurr+1;
|
530
|
else vecNext = vecCurr==0 ? 1 : vecCurr-1;
|
531
|
break;
|
532
|
case MODE_JUMP: vecNext = vecCurr==numPoints-1 ? 1:vecCurr+1;
|
533
|
break;
|
534
|
default : vecNext = 0;
|
535
|
}
|
536
|
|
537
|
next = vv.elementAt(vecNext);
|
538
|
tmp2 = vc.elementAt(vecNext);
|
539
|
|
540
|
if( tmp2.cached[0]!=next.x || tmp2.cached[1]!=next.y || tmp2.cached[2]!=next.z || tmp2.cached[3]!=next.w ) recomputeCache();
|
541
|
}
|
542
|
|
543
|
if( mSegment!= segment && vn!=null ) vn.elementAt(vecCurr).computeNoise();
|
544
|
|
545
|
mSegment = segment;
|
546
|
|
547
|
time = time-vecCurr;
|
548
|
|
549
|
tmp1 = vc.elementAt(vecCurr);
|
550
|
|
551
|
if( vn!=null )
|
552
|
{
|
553
|
time = noise(time,vecCurr);
|
554
|
|
555
|
computeOrthonormalBaseMore(time,tmp1);
|
556
|
|
557
|
buffer[offset ]= ((tmp1.a[0]*time+tmp1.b[0])*time+tmp1.c[0])*time+tmp1.d[0] + (baseV[1][0]*mFactor[0] + baseV[2][0]*mFactor[1] + baseV[3][0]*mFactor[2]);
|
558
|
buffer[offset+1]= ((tmp1.a[1]*time+tmp1.b[1])*time+tmp1.c[1])*time+tmp1.d[1] + (baseV[1][1]*mFactor[0] + baseV[2][1]*mFactor[1] + baseV[3][1]*mFactor[2]);
|
559
|
buffer[offset+2]= ((tmp1.a[2]*time+tmp1.b[2])*time+tmp1.c[2])*time+tmp1.d[2] + (baseV[1][2]*mFactor[0] + baseV[2][2]*mFactor[1] + baseV[3][2]*mFactor[2]);
|
560
|
buffer[offset+3]= ((tmp1.a[3]*time+tmp1.b[3])*time+tmp1.c[3])*time+tmp1.d[3] + (baseV[1][3]*mFactor[0] + baseV[2][3]*mFactor[1] + baseV[3][3]*mFactor[2]);
|
561
|
}
|
562
|
else
|
563
|
{
|
564
|
buffer[offset ]= ((tmp1.a[0]*time+tmp1.b[0])*time+tmp1.c[0])*time+tmp1.d[0];
|
565
|
buffer[offset+1]= ((tmp1.a[1]*time+tmp1.b[1])*time+tmp1.c[1])*time+tmp1.d[1];
|
566
|
buffer[offset+2]= ((tmp1.a[2]*time+tmp1.b[2])*time+tmp1.c[2])*time+tmp1.d[2];
|
567
|
buffer[offset+3]= ((tmp1.a[3]*time+tmp1.b[3])*time+tmp1.c[3])*time+tmp1.d[3];
|
568
|
}
|
569
|
|
570
|
break;
|
571
|
}
|
572
|
}
|
573
|
}
|
574
|
|
575
|
}
|
576
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
577
|
//
|