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d333eb6b
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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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// 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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6a06a912
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Leszek Koltunski
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package org.distorted.library;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.util.ArrayList;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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e0b6c593
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Leszek Koltunski
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/**
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* Create a 3D grid composed of Cubes.
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* <p>
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* Any subset of a MxNx1 cuboid is possible.
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*/
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26df012c
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Leszek Koltunski
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public class MeshCubes extends MeshObject
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6a06a912
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Leszek Koltunski
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{
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06d71892
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Leszek Koltunski
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private static final float R = 0.0f;//0.2f;
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6a06a912
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Leszek Koltunski
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private static final float FRONTZ = 0.5f;
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private static final float BACKZ =-0.5f;
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private static final int NORTH = 0;
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private static final int WEST = 1;
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private static final int EAST = 2;
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private static final int SOUTH = 3;
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ce7f3833
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Leszek Koltunski
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6a06a912
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Leszek Koltunski
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private static final boolean BACK = true;
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private static final boolean FRONT = false;
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private static final boolean UPPER = false;
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private static final boolean LOWER = true;
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private static final float[] mNormalX = new float[4];
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private static final float[] mNormalY = new float[4];
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ce7f3833
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Leszek Koltunski
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private static final float[] mNormalZ = new float[4];
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6a06a912
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Leszek Koltunski
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private class Edge
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{
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final int side;
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final int row;
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final int col;
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06d71892
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Leszek Koltunski
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Edge(int s, int r, int c)
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6a06a912
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Leszek Koltunski
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{
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side= s;
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row = r;
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col = c;
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}
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39cbf9dc
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Leszek Koltunski
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}
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6a06a912
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Leszek Koltunski
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private int mCols, mRows;
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private short[][] mCubes;
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39cbf9dc
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Leszek Koltunski
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private ArrayList<Edge> mEdges = new ArrayList<>();
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ce7f3833
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Leszek Koltunski
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84ee2a6a
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Leszek Koltunski
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private int remainingVert;
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8d9da98a
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Leszek Koltunski
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private int mSideBends;
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private int mEdgeNum;
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b62632fc
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Leszek Koltunski
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private int mSideWalls;
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ce7f3833
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Leszek Koltunski
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69ed1eb4
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Leszek Koltunski
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private float[] mBoundingVert;
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private static float[] mBoundingVert1 = new float[] { -0.5f,-0.5f, FRONTZ,
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+0.5f,-0.5f, FRONTZ,
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-0.5f,+0.5f, FRONTZ,
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+0.5f,+0.5f, FRONTZ };
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private static float[] mBoundingVert2 = new float[] { -0.5f,-0.5f, FRONTZ,
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+0.5f,-0.5f, FRONTZ,
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-0.5f,+0.5f, FRONTZ,
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+0.5f,+0.5f, FRONTZ,
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-0.5f,-0.5f, BACKZ ,
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+0.5f,-0.5f, BACKZ ,
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-0.5f,+0.5f, BACKZ ,
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+0.5f,+0.5f, BACKZ };
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ce7f3833
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// a Block is split into two triangles along the NE-SW line iff it is in the top-right
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// or bottom-left quadrant of the grid.
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private boolean isNE(int row,int col)
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{
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29dd01c6
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Leszek Koltunski
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return ( (2*row<mRows)^(2*col<mCols) );
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ce7f3833
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Leszek Koltunski
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}
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6a06a912
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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84ee2a6a
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Leszek Koltunski
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// return the number of vertices our grid will contain
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6a06a912
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Leszek Koltunski
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private int computeDataLength(boolean frontOnly)
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{
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b62632fc
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Leszek Koltunski
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int frontWalls=0, frontSegments=0, triangleShifts=0, windingShifts=0;
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ce7f3833
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Leszek Koltunski
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int shiftCol = (mCols-1)/2;
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boolean lastBlockIsNE=false;
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boolean thisBlockIsNE; // the block we are currently looking at is split into
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// two triangles along the NE-SW line (rather than NW-SE)
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29dd01c6
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Leszek Koltunski
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for(int row=0; row<mRows; row++)
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b62632fc
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Leszek Koltunski
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{
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if( mCols>=2 && (mCubes[row][shiftCol]%2 == 1) && (mCubes[row][shiftCol+1]%2 == 1) ) triangleShifts++;
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ce7f3833
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Leszek Koltunski
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b62632fc
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Leszek Koltunski
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for(int col=0; col<mCols; col++)
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{
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if( mCubes[row][col]%2 == 1 ) // land
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6a06a912
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Leszek Koltunski
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{
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b62632fc
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Leszek Koltunski
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thisBlockIsNE = isNE(row,col);
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if( thisBlockIsNE^lastBlockIsNE ) windingShifts++;
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lastBlockIsNE = thisBlockIsNE;
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frontWalls++;
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if( col==mCols-1 || mCubes[row][col+1]%2 == 0 ) frontSegments++;
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6a06a912
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Leszek Koltunski
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}
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b62632fc
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Leszek Koltunski
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}
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}
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ce7f3833
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Leszek Koltunski
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84ee2a6a
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Leszek Koltunski
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int frontVert = 2*( frontWalls + 2*frontSegments - 1) +2*triangleShifts + windingShifts;
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b62632fc
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Leszek Koltunski
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int sideVert = 2*( mSideWalls + mSideBends + mEdgeNum -1);
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8d9da98a
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Leszek Koltunski
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int firstWinding= (!frontOnly && (frontVert+1)%2==1 ) ? 1:0;
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84ee2a6a
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Leszek Koltunski
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int dataL = frontOnly ? frontVert : (frontVert+1) +firstWinding+ (1+sideVert+1) + (1+frontVert);
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8d9da98a
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Leszek Koltunski
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/*
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b62632fc
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Leszek Koltunski
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android.util.Log.e("CUBES","triangleShifts="+triangleShifts+" windingShifts="+windingShifts+" winding1="+firstWinding+" frontVert="+frontVert+" sideVert="+sideVert);
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android.util.Log.e("CUBES", "frontW="+frontWalls+" fSegments="+frontSegments+" sWalls="+mSideWalls+" sSegments="+mEdgeNum+" sideBends="+mSideBends+" dataLen="+dataL );
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8d9da98a
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Leszek Koltunski
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*/
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6a06a912
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Leszek Koltunski
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return dataL<0 ? 0:dataL;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/*
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private static String debug(short[] val)
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{
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ce7f3833
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Leszek Koltunski
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String ret="";j
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6a06a912
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Leszek Koltunski
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for(int i=0; i<val.length; i++) ret+=(" "+val[i]);
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return ret;
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}
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*/
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/*
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private static String debug(float[] val, int stop)
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{
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String ret="";
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for(int i=0; i<val.length; i++)
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{
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if( i%stop==0 ) ret+="\n";
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ret+=(" "+val[i]);
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}
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return ret;
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}
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*/
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/*
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private static String debug(Edge e)
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{
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String d = "";
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switch(e.side)
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{
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case NORTH: d+="NORTH "; break;
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case SOUTH: d+="SOUTH "; break;
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case WEST : d+="WEST "; break;
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case EAST : d+="EAST "; break;
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}
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d+=("("+e.row+","+e.col+")");
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return d;
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}
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8d9da98a
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Leszek Koltunski
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*/
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6a06a912
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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2e96ee72
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Leszek Koltunski
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private void prepareDataStructures(int cols, String desc, boolean frontOnly)
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6a06a912
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Leszek Koltunski
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{
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mRows =0;
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mCols =0;
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dataLength=0;
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0729bc41
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Leszek Koltunski
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if( cols>0 && desc.contains("1") )
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6a06a912
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Leszek Koltunski
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{
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0729bc41
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Leszek Koltunski
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mCols = cols;
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mRows = desc.length()/cols;
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6a06a912
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Leszek Koltunski
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0729bc41
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Leszek Koltunski
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mCubes = new short[mRows][mCols];
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6a06a912
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Leszek Koltunski
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0729bc41
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Leszek Koltunski
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for(int j=0; j<mCols; j++)
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for(int i=0; i<mRows; i++)
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mCubes[i][j] = (short)(desc.charAt(i*mCols+j) == '1' ? 1:0);
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6a06a912
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Leszek Koltunski
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0729bc41
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Leszek Koltunski
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markRegions();
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dataLength = computeDataLength(frontOnly);
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84ee2a6a
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Leszek Koltunski
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remainingVert = dataLength;
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69ed1eb4
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Leszek Koltunski
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buildBoundingVert(mCubes,frontOnly);
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6a06a912
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Leszek Koltunski
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}
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}
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665e2c45
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// full grid
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private void prepareDataStructures(int cols, int rows, boolean frontOnly)
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{
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mRows =rows;
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mCols =cols;
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dataLength= 0;
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if( cols>0 && rows>0 )
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{
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mCubes = new short[mRows][mCols];
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for(int j=0; j<mCols; j++)
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for(int i=0; i<mRows; i++)
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mCubes[i][j] = (short)1;
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markRegions();
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dataLength = computeDataLength(frontOnly);
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remainingVert = dataLength;
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}
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69ed1eb4
|
Leszek Koltunski
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mBoundingVert = frontOnly ? mBoundingVert1 : mBoundingVert2;
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665e2c45
|
Leszek Koltunski
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}
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| 237 |
69ed1eb4
|
Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private float retLeftmost(short[][] cubes, int row)
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{
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return 0.0f;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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| 246 |
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| 247 |
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private float retRightmost(short[][] cubes, int row)
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{
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if( row==0 )
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{
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| 251 |
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for(int i=0; i<mCols; i++)
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{
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}
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| 255 |
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}
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| 256 |
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else if(row==mRows)
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{
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| 258 |
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for(int i=0; i<mCols; i++)
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{
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| 260 |
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}
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| 262 |
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}
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| 263 |
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else
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{
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| 265 |
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for(int i=0; i<mCols; i++)
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{
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| 267 |
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}
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| 269 |
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}
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| 270 |
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return 0.0f;
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}
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| 273 |
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| 274 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
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| 275 |
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| 276 |
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private int addLeftmost(float[] temp, short[][] cubes, int row, int index)
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| 277 |
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{
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| 278 |
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float x2 = retLeftmost(cubes,row);
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| 279 |
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float y2 = row/mRows - 0.5f;
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| 280 |
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| 281 |
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if( index>1 )
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| 282 |
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{
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| 283 |
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float x0 = temp[2*index-4];
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| 284 |
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float y0 = temp[2*index-3];
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| 285 |
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float x1 = temp[2*index-2];
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| 286 |
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float y1 = temp[2*index-1];
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if( (x0-x2)*(y0-y1) <= (x0-x1)*(y0-y2) )
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| 289 |
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{
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| 290 |
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temp[2*index-2] = x2;
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| 291 |
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temp[2*index-1] = y2;
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| 292 |
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return index;
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| 293 |
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}
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| 294 |
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}
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| 295 |
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| 296 |
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temp[2*index+0] = x2;
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| 297 |
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temp[2*index+1] = y2;
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| 298 |
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return index+1;
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| 299 |
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}
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| 300 |
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| 301 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 302 |
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| 303 |
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private int addRightmost(float[] temp, short[][] cubes, int row, int index)
|
| 304 |
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{
|
| 305 |
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float x2 = retRightmost(cubes,row);
|
| 306 |
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float y2 = row/mRows - 0.5f;
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| 307 |
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| 308 |
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if( index>1 )
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| 309 |
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{
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| 310 |
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float x0 = temp[2*index-4];
|
| 311 |
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float y0 = temp[2*index-3];
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| 312 |
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float x1 = temp[2*index-2];
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| 313 |
|
|
float y1 = temp[2*index-1];
|
| 314 |
|
|
|
| 315 |
|
|
if( (x0-x2)*(y0-y1) >= (x0-x1)*(y0-y2) )
|
| 316 |
|
|
{
|
| 317 |
|
|
temp[2*index-2] = x2;
|
| 318 |
|
|
temp[2*index-1] = y2;
|
| 319 |
|
|
return index;
|
| 320 |
|
|
}
|
| 321 |
|
|
}
|
| 322 |
|
|
|
| 323 |
|
|
temp[2*index+0] = x2;
|
| 324 |
|
|
temp[2*index+1] = y2;
|
| 325 |
|
|
return index+1;
|
| 326 |
|
|
}
|
| 327 |
|
|
|
| 328 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 329 |
|
|
// fill up the mBoundingVert array with the smallest set of vertices which form the same convex hull
|
| 330 |
|
|
// like the whole thing.
|
| 331 |
|
|
|
| 332 |
|
|
private void buildBoundingVert(short[][] cubes, boolean frontOnly)
|
| 333 |
|
|
{
|
| 334 |
|
|
int lVert=0, rVert=0;
|
| 335 |
|
|
float[] tempL = new float[2*(mRows+1)];
|
| 336 |
|
|
float[] tempR = new float[2*(mRows+1)];
|
| 337 |
|
|
|
| 338 |
|
|
for(int i=0; i<=mRows; i++)
|
| 339 |
|
|
{
|
| 340 |
|
|
lVert = addLeftmost (tempL,cubes,i,lVert);
|
| 341 |
|
|
rVert = addRightmost(tempR,cubes,i,rVert);
|
| 342 |
|
|
}
|
| 343 |
|
|
|
| 344 |
|
|
int numVert = lVert+rVert;
|
| 345 |
|
|
|
| 346 |
|
|
mBoundingVert = new float[ numVert*(frontOnly ? 3:6) ];
|
| 347 |
|
|
|
| 348 |
|
|
for(int i=0; i<lVert; i++)
|
| 349 |
|
|
{
|
| 350 |
|
|
mBoundingVert[3*i ] = tempL[2*i ];
|
| 351 |
|
|
mBoundingVert[3*i+1] = tempL[2*i+1];
|
| 352 |
|
|
mBoundingVert[3*i+2] = FRONTZ;
|
| 353 |
|
|
}
|
| 354 |
|
|
|
| 355 |
|
|
for(int i=0; i<rVert; i++)
|
| 356 |
|
|
{
|
| 357 |
|
|
mBoundingVert[3*(i+lVert) ] = tempR[2*i ];
|
| 358 |
|
|
mBoundingVert[3*(i+lVert)+1] = tempR[2*i+1];
|
| 359 |
|
|
mBoundingVert[3*(i+lVert)+2] = FRONTZ;
|
| 360 |
|
|
}
|
| 361 |
|
|
|
| 362 |
|
|
if( !frontOnly )
|
| 363 |
|
|
{
|
| 364 |
|
|
for(int i=0; i<numVert; i++)
|
| 365 |
|
|
{
|
| 366 |
|
|
mBoundingVert[3*(i+numVert) ] = mBoundingVert[3*i ];
|
| 367 |
|
|
mBoundingVert[3*(i+numVert)+1] = mBoundingVert[3*i+1];
|
| 368 |
|
|
mBoundingVert[3*(i+numVert)+2] = BACKZ;
|
| 369 |
|
|
}
|
| 370 |
|
|
}
|
| 371 |
|
|
}
|
| 372 |
|
|
|
| 373 |
6a06a912
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 374 |
|
|
// Mark all the 'regions' of our grid - i.e. separate pieces of 'land' (connected blocks that will
|
| 375 |
|
|
// be rendered) and 'water' (connected holes in between) with integers. Each connected block of land
|
| 376 |
|
|
// gets a unique odd integer, each connected block of water a unique even integer.
|
| 377 |
|
|
//
|
| 378 |
|
|
// Water on the edges of the grid is also considered connected to itself!
|
| 379 |
|
|
//
|
| 380 |
|
|
// This function also creates a list of 'Edges'. Each Edge is a data structure from which later on we
|
| 381 |
2e96ee72
|
Leszek Koltunski
|
// will start building the side walls of each connected block of land (and sides of holes of water
|
| 382 |
8d9da98a
|
Leszek Koltunski
|
// inside). Each Edge needs to point from Land to Water (thus the '(SOUTH,i-1,j)' below) - otherwise
|
| 383 |
|
|
// later on setting up normal vectors wouldn't work.
|
| 384 |
6a06a912
|
Leszek Koltunski
|
|
| 385 |
|
|
private void markRegions()
|
| 386 |
|
|
{
|
| 387 |
|
|
int i, j, numWater=1, numLand=0;
|
| 388 |
|
|
|
| 389 |
|
|
for(i=0; i<mRows;i++) if( mCubes[ i][ 0]==0 ) markRegion((short)2, i, 0);
|
| 390 |
|
|
for(i=0; i<mRows;i++) if( mCubes[ i][mCols-1]==0 ) markRegion((short)2, i, mCols-1);
|
| 391 |
|
|
for(i=0; i<mCols;i++) if( mCubes[0 ][ i]==0 ) markRegion((short)2, 0, i);
|
| 392 |
|
|
for(i=0; i<mCols;i++) if( mCubes[mRows-1][ i]==0 ) markRegion((short)2,mRows-1, i);
|
| 393 |
|
|
|
| 394 |
|
|
for(i=0; i<mRows; i++)
|
| 395 |
|
|
for(j=0; j<mCols; j++)
|
| 396 |
|
|
{
|
| 397 |
8d9da98a
|
Leszek Koltunski
|
if( mCubes[i][j] == 0 ) { numWater++; markRegion( (short)(2*numWater ),i,j); mEdges.add(new Edge(SOUTH,i-1,j)); }
|
| 398 |
|
|
if( mCubes[i][j] == 1 ) { numLand ++; markRegion( (short)(2*numLand+1),i,j); mEdges.add(new Edge(NORTH,i ,j)); }
|
| 399 |
6a06a912
|
Leszek Koltunski
|
}
|
| 400 |
|
|
|
| 401 |
8d9da98a
|
Leszek Koltunski
|
// now we potentially need to kick out some Edges . Otherwise the following does not work:
|
| 402 |
6a06a912
|
Leszek Koltunski
|
//
|
| 403 |
|
|
// 0 1 0
|
| 404 |
|
|
// 1 0 1
|
| 405 |
|
|
// 0 1 0
|
| 406 |
|
|
|
| 407 |
8d9da98a
|
Leszek Koltunski
|
mEdgeNum= mEdges.size();
|
| 408 |
|
|
int initCol, initRow, initSide, lastSide;
|
| 409 |
|
|
Edge e1,e2;
|
| 410 |
6a06a912
|
Leszek Koltunski
|
|
| 411 |
8d9da98a
|
Leszek Koltunski
|
for(i=0; i<mEdgeNum; i++)
|
| 412 |
6a06a912
|
Leszek Koltunski
|
{
|
| 413 |
8d9da98a
|
Leszek Koltunski
|
e1 = mEdges.get(i);
|
| 414 |
|
|
initRow= e1.row;
|
| 415 |
|
|
initCol= e1.col;
|
| 416 |
|
|
initSide=e1.side;
|
| 417 |
|
|
|
| 418 |
|
|
do
|
| 419 |
6a06a912
|
Leszek Koltunski
|
{
|
| 420 |
8d9da98a
|
Leszek Koltunski
|
//android.util.Log.d("CUBES", "checking edge "+debug(e1));
|
| 421 |
|
|
|
| 422 |
b62632fc
|
Leszek Koltunski
|
mSideWalls++;
|
| 423 |
|
|
|
| 424 |
8d9da98a
|
Leszek Koltunski
|
if( e1.side==NORTH || e1.side==SOUTH )
|
| 425 |
6a06a912
|
Leszek Koltunski
|
{
|
| 426 |
8d9da98a
|
Leszek Koltunski
|
for(j=i+1;j<mEdgeNum;j++)
|
| 427 |
6a06a912
|
Leszek Koltunski
|
{
|
| 428 |
8d9da98a
|
Leszek Koltunski
|
e2 = mEdges.get(j);
|
| 429 |
|
|
|
| 430 |
|
|
if( e2.side==e1.side && e2.row==e1.row && e2.col==e1.col )
|
| 431 |
|
|
{
|
| 432 |
|
|
mEdges.remove(j);
|
| 433 |
|
|
mEdgeNum--;
|
| 434 |
|
|
j--;
|
| 435 |
|
|
|
| 436 |
|
|
//android.util.Log.e("CUBES", "removing edge "+debug(e2));
|
| 437 |
|
|
}
|
| 438 |
6a06a912
|
Leszek Koltunski
|
}
|
| 439 |
|
|
}
|
| 440 |
8d9da98a
|
Leszek Koltunski
|
|
| 441 |
|
|
lastSide = e1.side;
|
| 442 |
|
|
e1 = getNextEdge(e1);
|
| 443 |
|
|
if( e1.side!=lastSide ) mSideBends++;
|
| 444 |
6a06a912
|
Leszek Koltunski
|
}
|
| 445 |
8d9da98a
|
Leszek Koltunski
|
while( e1.col!=initCol || e1.row!=initRow || e1.side!=initSide );
|
| 446 |
6a06a912
|
Leszek Koltunski
|
}
|
| 447 |
|
|
}
|
| 448 |
|
|
|
| 449 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 450 |
|
|
// when calling, make sure that newVal != val
|
| 451 |
|
|
|
| 452 |
|
|
private void markRegion(short newVal, int row, int col)
|
| 453 |
|
|
{
|
| 454 |
|
|
short val = mCubes[row][col];
|
| 455 |
|
|
mCubes[row][col] = newVal;
|
| 456 |
|
|
|
| 457 |
|
|
if( row>0 && mCubes[row-1][col ]==val ) markRegion(newVal, row-1, col );
|
| 458 |
|
|
if( row<mRows-1 && mCubes[row+1][col ]==val ) markRegion(newVal, row+1, col );
|
| 459 |
|
|
if( col>0 && mCubes[row ][col-1]==val ) markRegion(newVal, row , col-1);
|
| 460 |
|
|
if( col<mCols-1 && mCubes[row ][col+1]==val ) markRegion(newVal, row , col+1);
|
| 461 |
|
|
}
|
| 462 |
|
|
|
| 463 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 464 |
|
|
|
| 465 |
ce7f3833
|
Leszek Koltunski
|
private void createNormals(boolean front, int row, int col)
|
| 466 |
6a06a912
|
Leszek Koltunski
|
{
|
| 467 |
|
|
int td,lr;
|
| 468 |
|
|
|
| 469 |
2e96ee72
|
Leszek Koltunski
|
int nw = (col>0 && row>0 ) ? (mCubes[row-1][col-1]%2) : 0;
|
| 470 |
|
|
int w = (col>0 ) ? (mCubes[row ][col-1]%2) : 0;
|
| 471 |
|
|
int n = ( row>0 ) ? (mCubes[row-1][col ]%2) : 0;
|
| 472 |
|
|
int c = (mCubes[row ][col ]%2);
|
| 473 |
|
|
int sw = (col>0 && row<mRows-1) ? (mCubes[row+1][col-1]%2) : 0;
|
| 474 |
6a06a912
|
Leszek Koltunski
|
int s = ( row<mRows-1) ? (mCubes[row+1][col ]%2) : 0;
|
| 475 |
|
|
int ne = (col<mCols-1 && row>0 ) ? (mCubes[row-1][col+1]%2) : 0;
|
| 476 |
|
|
int e = (col<mCols-1 ) ? (mCubes[row ][col+1]%2) : 0;
|
| 477 |
|
|
int se = (col<mCols-1 && row<mRows-1) ? (mCubes[row+1][col+1]%2) : 0;
|
| 478 |
ce7f3833
|
Leszek Koltunski
|
|
| 479 |
|
|
if(front)
|
| 480 |
|
|
{
|
| 481 |
|
|
mNormalZ[0] = 1.0f;
|
| 482 |
|
|
mNormalZ[1] = 1.0f;
|
| 483 |
|
|
mNormalZ[2] = 1.0f;
|
| 484 |
|
|
mNormalZ[3] = 1.0f;
|
| 485 |
|
|
}
|
| 486 |
|
|
else
|
| 487 |
|
|
{
|
| 488 |
|
|
mNormalZ[0] =-1.0f;
|
| 489 |
|
|
mNormalZ[1] =-1.0f;
|
| 490 |
|
|
mNormalZ[2] =-1.0f;
|
| 491 |
|
|
mNormalZ[3] =-1.0f;
|
| 492 |
|
|
}
|
| 493 |
|
|
|
| 494 |
6a06a912
|
Leszek Koltunski
|
td = nw+n-w-c;
|
| 495 |
|
|
lr = c+n-w-nw;
|
| 496 |
|
|
if( td<0 ) td=-1;
|
| 497 |
|
|
if( td>0 ) td= 1;
|
| 498 |
|
|
if( lr<0 ) lr=-1;
|
| 499 |
|
|
if( lr>0 ) lr= 1;
|
| 500 |
|
|
mNormalX[0] = lr*R;
|
| 501 |
|
|
mNormalY[0] = td*R;
|
| 502 |
|
|
|
| 503 |
|
|
td = w+c-sw-s;
|
| 504 |
|
|
lr = c+s-w-sw;
|
| 505 |
|
|
if( td<0 ) td=-1;
|
| 506 |
|
|
if( td>0 ) td= 1;
|
| 507 |
|
|
if( lr<0 ) lr=-1;
|
| 508 |
|
|
if( lr>0 ) lr= 1;
|
| 509 |
|
|
mNormalX[1] = lr*R;
|
| 510 |
|
|
mNormalY[1] = td*R;
|
| 511 |
|
|
|
| 512 |
|
|
td = n+ne-c-e;
|
| 513 |
|
|
lr = e+ne-c-n;
|
| 514 |
|
|
if( td<0 ) td=-1;
|
| 515 |
|
|
if( td>0 ) td= 1;
|
| 516 |
|
|
if( lr<0 ) lr=-1;
|
| 517 |
|
|
if( lr>0 ) lr= 1;
|
| 518 |
|
|
mNormalX[2] = lr*R;
|
| 519 |
|
|
mNormalY[2] = td*R;
|
| 520 |
|
|
|
| 521 |
|
|
td = c+e-s-se;
|
| 522 |
|
|
lr = e+se-c-s;
|
| 523 |
|
|
if( td<0 ) td=-1;
|
| 524 |
|
|
if( td>0 ) td= 1;
|
| 525 |
|
|
if( lr<0 ) lr=-1;
|
| 526 |
|
|
if( lr>0 ) lr= 1;
|
| 527 |
|
|
mNormalX[3] = lr*R;
|
| 528 |
|
|
mNormalY[3] = td*R;
|
| 529 |
|
|
/*
|
| 530 |
2e96ee72
|
Leszek Koltunski
|
android.util.Log.d("CUBES", "row="+row+" col="+col);
|
| 531 |
|
|
android.util.Log.d("CUBES", mNormalX[0]+" "+mNormalY[0]);
|
| 532 |
|
|
android.util.Log.d("CUBES", mNormalX[1]+" "+mNormalY[1]);
|
| 533 |
|
|
android.util.Log.d("CUBES", mNormalX[2]+" "+mNormalY[2]);
|
| 534 |
|
|
android.util.Log.d("CUBES", mNormalX[3]+" "+mNormalY[3]);
|
| 535 |
6a06a912
|
Leszek Koltunski
|
*/
|
| 536 |
|
|
}
|
| 537 |
|
|
|
| 538 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 539 |
ce7f3833
|
Leszek Koltunski
|
|
| 540 |
e5d9b235
|
Leszek Koltunski
|
private int addFrontVertex(int vertex, int index, float vectZ, int col, int row, float[] position, float[] normal, float[] texture)
|
| 541 |
ce7f3833
|
Leszek Koltunski
|
{
|
| 542 |
84ee2a6a
|
Leszek Koltunski
|
remainingVert--;
|
| 543 |
15873844
|
Leszek Koltunski
|
|
| 544 |
e5d9b235
|
Leszek Koltunski
|
float x = (float)col/mCols;
|
| 545 |
|
|
float y = (float)row/mRows;
|
| 546 |
ce7f3833
|
Leszek Koltunski
|
|
| 547 |
15873844
|
Leszek Koltunski
|
position[3*vertex ] = x-0.5f;
|
| 548 |
|
|
position[3*vertex+1] = 0.5f-y;
|
| 549 |
|
|
position[3*vertex+2] = vectZ;
|
| 550 |
|
|
normal[3*vertex ] = mNormalX[index];
|
| 551 |
|
|
normal[3*vertex+1] = mNormalY[index];
|
| 552 |
|
|
normal[3*vertex+2] = mNormalZ[index];
|
| 553 |
|
|
texture[2*vertex ] = x;
|
| 554 |
985ea9c5
|
Leszek Koltunski
|
texture[2*vertex+1] = 1.0f-y;
|
| 555 |
15873844
|
Leszek Koltunski
|
|
| 556 |
|
|
return vertex+1;
|
| 557 |
ce7f3833
|
Leszek Koltunski
|
}
|
| 558 |
|
|
|
| 559 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 560 |
|
|
|
| 561 |
6a06a912
|
Leszek Koltunski
|
private int buildFrontBackGrid(boolean front, int vertex, float[] position, float[] normal, float[] texture)
|
| 562 |
|
|
{
|
| 563 |
|
|
short last, current;
|
| 564 |
ce7f3833
|
Leszek Koltunski
|
boolean seenLand=false;
|
| 565 |
|
|
boolean lastBlockIsNE = false;
|
| 566 |
|
|
boolean currentBlockIsNE;
|
| 567 |
|
|
float vectZ = front?FRONTZ:BACKZ;
|
| 568 |
|
|
|
| 569 |
84ee2a6a
|
Leszek Koltunski
|
//android.util.Log.d("CUBES", "buildFrontBack");
|
| 570 |
|
|
|
| 571 |
e5d9b235
|
Leszek Koltunski
|
for(int row=0; row<mRows; row++)
|
| 572 |
6a06a912
|
Leszek Koltunski
|
{
|
| 573 |
|
|
last =0;
|
| 574 |
|
|
|
| 575 |
e5d9b235
|
Leszek Koltunski
|
for(int col=0; col<mCols; col++)
|
| 576 |
6a06a912
|
Leszek Koltunski
|
{
|
| 577 |
e5d9b235
|
Leszek Koltunski
|
current = mCubes[row][col];
|
| 578 |
ce7f3833
|
Leszek Koltunski
|
|
| 579 |
6a06a912
|
Leszek Koltunski
|
if( current%2 == 1 )
|
| 580 |
|
|
{
|
| 581 |
e5d9b235
|
Leszek Koltunski
|
currentBlockIsNE = isNE(row,col);
|
| 582 |
84ee2a6a
|
Leszek Koltunski
|
|
| 583 |
|
|
if( !seenLand && !front && ((vertex%2==1)^currentBlockIsNE) )
|
| 584 |
|
|
{
|
| 585 |
|
|
//android.util.Log.d("CUBES","repeating winding2 vertex");
|
| 586 |
|
|
|
| 587 |
|
|
vertex = repeatLast(vertex,position,normal,texture);
|
| 588 |
|
|
}
|
| 589 |
|
|
|
| 590 |
e5d9b235
|
Leszek Koltunski
|
createNormals(front,row,col);
|
| 591 |
ce7f3833
|
Leszek Koltunski
|
|
| 592 |
e5d9b235
|
Leszek Koltunski
|
if( currentBlockIsNE )
|
| 593 |
6a06a912
|
Leszek Koltunski
|
{
|
| 594 |
e5d9b235
|
Leszek Koltunski
|
if( (last!=current) || !lastBlockIsNE )
|
| 595 |
|
|
{
|
| 596 |
|
|
if( seenLand && (last != current) ) vertex = repeatLast(vertex,position,normal,texture);
|
| 597 |
|
|
vertex= addFrontVertex( vertex, 0, vectZ, col, row, position, normal, texture);
|
| 598 |
|
|
if( seenLand && (last != current) ) vertex = repeatLast(vertex,position,normal,texture);
|
| 599 |
|
|
if( !lastBlockIsNE || (!front && !seenLand) ) vertex = repeatLast(vertex,position,normal,texture);
|
| 600 |
|
|
vertex= addFrontVertex( vertex, 1, vectZ, col, row+1, position, normal, texture);
|
| 601 |
|
|
}
|
| 602 |
|
|
vertex= addFrontVertex( vertex, 2, vectZ, col+1, row, position, normal, texture);
|
| 603 |
|
|
vertex= addFrontVertex( vertex, 3, vectZ, col+1, row+1, position, normal, texture);
|
| 604 |
|
|
}
|
| 605 |
|
|
else
|
| 606 |
|
|
{
|
| 607 |
|
|
if( (last!=current) || lastBlockIsNE )
|
| 608 |
|
|
{
|
| 609 |
|
|
if( seenLand && (last != current) ) vertex = repeatLast(vertex,position,normal,texture);
|
| 610 |
|
|
vertex= addFrontVertex( vertex, 1, vectZ, col, row+1, position, normal, texture);
|
| 611 |
|
|
if( seenLand && (last != current) ) vertex = repeatLast(vertex,position,normal,texture);
|
| 612 |
|
|
if( lastBlockIsNE || (!front && !seenLand) ) vertex = repeatLast(vertex,position,normal,texture);
|
| 613 |
|
|
vertex= addFrontVertex( vertex, 0, vectZ, col, row, position, normal, texture);
|
| 614 |
|
|
}
|
| 615 |
|
|
vertex= addFrontVertex( vertex, 3, vectZ, col+1, row+1, position, normal, texture);
|
| 616 |
|
|
vertex= addFrontVertex( vertex, 2, vectZ, col+1, row , position, normal, texture);
|
| 617 |
6a06a912
|
Leszek Koltunski
|
}
|
| 618 |
ce7f3833
|
Leszek Koltunski
|
|
| 619 |
|
|
seenLand = true;
|
| 620 |
|
|
lastBlockIsNE = currentBlockIsNE;
|
| 621 |
6a06a912
|
Leszek Koltunski
|
}
|
| 622 |
|
|
|
| 623 |
|
|
last = current;
|
| 624 |
|
|
}
|
| 625 |
|
|
}
|
| 626 |
|
|
|
| 627 |
|
|
return vertex;
|
| 628 |
|
|
}
|
| 629 |
|
|
|
| 630 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 631 |
|
|
|
| 632 |
|
|
private int repeatLast(int vertex, float[] position, float[] normal, float[] texture)
|
| 633 |
|
|
{
|
| 634 |
84ee2a6a
|
Leszek Koltunski
|
//android.util.Log.e("CUBES", "repeating last vertex!");
|
| 635 |
|
|
|
| 636 |
6a06a912
|
Leszek Koltunski
|
if( vertex>0 )
|
| 637 |
|
|
{
|
| 638 |
e5d9b235
|
Leszek Koltunski
|
remainingVert--;
|
| 639 |
|
|
|
| 640 |
39cbf9dc
|
Leszek Koltunski
|
position[3*vertex ] = position[3*vertex-3];
|
| 641 |
6a06a912
|
Leszek Koltunski
|
position[3*vertex+1] = position[3*vertex-2];
|
| 642 |
|
|
position[3*vertex+2] = position[3*vertex-1];
|
| 643 |
|
|
|
| 644 |
39cbf9dc
|
Leszek Koltunski
|
normal[3*vertex ] = normal[3*vertex-3];
|
| 645 |
6a06a912
|
Leszek Koltunski
|
normal[3*vertex+1] = normal[3*vertex-2];
|
| 646 |
|
|
normal[3*vertex+2] = normal[3*vertex-1];
|
| 647 |
|
|
|
| 648 |
39cbf9dc
|
Leszek Koltunski
|
texture[2*vertex ] = texture[2*vertex-2];
|
| 649 |
6a06a912
|
Leszek Koltunski
|
texture[2*vertex+1] = texture[2*vertex-1];
|
| 650 |
|
|
|
| 651 |
|
|
vertex++;
|
| 652 |
|
|
}
|
| 653 |
|
|
|
| 654 |
|
|
return vertex;
|
| 655 |
|
|
}
|
| 656 |
|
|
|
| 657 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 658 |
|
|
|
| 659 |
|
|
private int buildSideGrid(int vertex, float[] position, float[] normal, float[] texture)
|
| 660 |
|
|
{
|
| 661 |
84ee2a6a
|
Leszek Koltunski
|
//android.util.Log.d("CUBES", "buildSide");
|
| 662 |
ce7f3833
|
Leszek Koltunski
|
|
| 663 |
8d9da98a
|
Leszek Koltunski
|
for(int i=0; i<mEdgeNum; i++)
|
| 664 |
6a06a912
|
Leszek Koltunski
|
{
|
| 665 |
|
|
vertex = buildIthSide(mEdges.get(i), vertex, position, normal, texture);
|
| 666 |
|
|
}
|
| 667 |
|
|
|
| 668 |
|
|
return vertex;
|
| 669 |
|
|
}
|
| 670 |
|
|
|
| 671 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 672 |
|
|
|
| 673 |
|
|
private int buildIthSide(Edge curr, int vertex, float[] position, float[] normal, float[] texture)
|
| 674 |
|
|
{
|
| 675 |
|
|
Edge prev;
|
| 676 |
|
|
|
| 677 |
|
|
if( curr.side==NORTH ) // water outside
|
| 678 |
|
|
{
|
| 679 |
|
|
prev = new Edge(WEST,curr.row,curr.col);
|
| 680 |
|
|
}
|
| 681 |
|
|
else // land outside; we need to move forward one link because we are going in opposite direction and we need to start from a bend.
|
| 682 |
|
|
{
|
| 683 |
|
|
prev = curr;
|
| 684 |
|
|
curr = new Edge(EAST,curr.row+1,curr.col-1);
|
| 685 |
|
|
}
|
| 686 |
|
|
|
| 687 |
|
|
int col = curr.col;
|
| 688 |
|
|
int row = curr.row;
|
| 689 |
|
|
int side= curr.side;
|
| 690 |
|
|
Edge next = getNextEdge(curr);
|
| 691 |
|
|
|
| 692 |
84ee2a6a
|
Leszek Koltunski
|
addSideVertex(curr,BACK,LOWER,prev.side,vertex,position,normal,texture);
|
| 693 |
6a06a912
|
Leszek Koltunski
|
vertex++;
|
| 694 |
|
|
|
| 695 |
|
|
do
|
| 696 |
|
|
{
|
| 697 |
|
|
if( prev.side!=curr.side )
|
| 698 |
|
|
{
|
| 699 |
84ee2a6a
|
Leszek Koltunski
|
addSideVertex(curr,BACK,LOWER,prev.side,vertex,position,normal,texture);
|
| 700 |
6a06a912
|
Leszek Koltunski
|
vertex++;
|
| 701 |
84ee2a6a
|
Leszek Koltunski
|
addSideVertex(curr,BACK,UPPER,prev.side,vertex,position,normal,texture);
|
| 702 |
6a06a912
|
Leszek Koltunski
|
vertex++;
|
| 703 |
|
|
}
|
| 704 |
|
|
|
| 705 |
84ee2a6a
|
Leszek Koltunski
|
addSideVertex(curr,FRONT,LOWER,next.side,vertex,position,normal,texture);
|
| 706 |
6a06a912
|
Leszek Koltunski
|
vertex++;
|
| 707 |
84ee2a6a
|
Leszek Koltunski
|
addSideVertex(curr,FRONT,UPPER,next.side,vertex,position,normal,texture);
|
| 708 |
6a06a912
|
Leszek Koltunski
|
vertex++;
|
| 709 |
|
|
|
| 710 |
|
|
prev = curr;
|
| 711 |
|
|
curr = next;
|
| 712 |
|
|
next = getNextEdge(curr);
|
| 713 |
|
|
}
|
| 714 |
|
|
while( curr.col!=col || curr.row!=row || curr.side!=side );
|
| 715 |
|
|
|
| 716 |
|
|
vertex = repeatLast(vertex,position,normal,texture);
|
| 717 |
|
|
|
| 718 |
|
|
return vertex;
|
| 719 |
|
|
}
|
| 720 |
|
|
|
| 721 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 722 |
|
|
|
| 723 |
|
|
private Edge getNextEdge(Edge curr)
|
| 724 |
|
|
{
|
| 725 |
|
|
int col = curr.col;
|
| 726 |
|
|
int row = curr.row;
|
| 727 |
|
|
|
| 728 |
|
|
//android.util.Log.e("CUBES", "row="+row+" col="+col+" mRows="+mRows+" mCols="+mCols);
|
| 729 |
|
|
|
| 730 |
|
|
switch(curr.side)
|
| 731 |
|
|
{
|
| 732 |
|
|
case NORTH: if( col==mCols-1 )
|
| 733 |
|
|
return new Edge(EAST,row,col);
|
| 734 |
|
|
if( row>0 && mCubes[row-1][col+1]==mCubes[row][col] )
|
| 735 |
|
|
return new Edge(WEST,row-1,col+1);
|
| 736 |
|
|
if( mCubes[row][col+1]==mCubes[row][col] )
|
| 737 |
|
|
return new Edge(NORTH,row,col+1);
|
| 738 |
|
|
else
|
| 739 |
|
|
return new Edge(EAST,row,col);
|
| 740 |
|
|
|
| 741 |
|
|
case SOUTH: if( col==0 )
|
| 742 |
|
|
return new Edge(WEST,row,col);
|
| 743 |
|
|
if( (row<mRows-1) && mCubes[row+1][col-1]==mCubes[row][col] )
|
| 744 |
|
|
return new Edge(EAST,row+1,col-1);
|
| 745 |
|
|
if( mCubes[row][col-1]==mCubes[row][col] )
|
| 746 |
|
|
return new Edge(SOUTH,row,col-1);
|
| 747 |
|
|
else
|
| 748 |
|
|
return new Edge(WEST,row,col);
|
| 749 |
|
|
|
| 750 |
|
|
case EAST : if( row==mRows-1 )
|
| 751 |
|
|
return new Edge(SOUTH,row,col);
|
| 752 |
|
|
if( (col<mCols-1) && mCubes[row+1][col+1]==mCubes[row][col] )
|
| 753 |
|
|
return new Edge(NORTH,row+1,col+1);
|
| 754 |
|
|
if( mCubes[row+1][col]==mCubes[row][col] )
|
| 755 |
|
|
return new Edge(EAST,row+1,col);
|
| 756 |
|
|
else
|
| 757 |
|
|
return new Edge(SOUTH,row,col);
|
| 758 |
|
|
|
| 759 |
8d9da98a
|
Leszek Koltunski
|
default : if( row==0 )
|
| 760 |
6a06a912
|
Leszek Koltunski
|
return new Edge(NORTH,row,col);
|
| 761 |
|
|
if( col>0 && mCubes[row-1][col-1]==mCubes[row][col] )
|
| 762 |
|
|
return new Edge(SOUTH,row-1,col-1);
|
| 763 |
|
|
if( mCubes[row-1][col]==mCubes[row][col] )
|
| 764 |
|
|
return new Edge(WEST,row-1,col);
|
| 765 |
|
|
else
|
| 766 |
|
|
return new Edge(NORTH,row,col);
|
| 767 |
|
|
}
|
| 768 |
|
|
}
|
| 769 |
|
|
|
| 770 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 771 |
|
|
|
| 772 |
84ee2a6a
|
Leszek Koltunski
|
private void addSideVertex(Edge curr, boolean back, boolean lower,int side, int vertex, float[] position, float[] normal, float[] texture)
|
| 773 |
6a06a912
|
Leszek Koltunski
|
{
|
| 774 |
84ee2a6a
|
Leszek Koltunski
|
//android.util.Log.e("CUBES", "adding Side vertex!");
|
| 775 |
|
|
|
| 776 |
|
|
remainingVert--;
|
| 777 |
|
|
|
| 778 |
985ea9c5
|
Leszek Koltunski
|
float x, y;
|
| 779 |
|
|
|
| 780 |
6a06a912
|
Leszek Koltunski
|
switch(curr.side)
|
| 781 |
|
|
{
|
| 782 |
985ea9c5
|
Leszek Koltunski
|
case NORTH: x = (float)(back ? (curr.col ):(curr.col+1))/mCols;
|
| 783 |
|
|
|
| 784 |
|
|
position[3*vertex ] = x - 0.5f;
|
| 785 |
|
|
position[3*vertex+1] = 0.5f - (float)curr.row/mRows;
|
| 786 |
6a06a912
|
Leszek Koltunski
|
position[3*vertex+2] = lower ? BACKZ : FRONTZ;
|
| 787 |
|
|
|
| 788 |
39cbf9dc
|
Leszek Koltunski
|
normal[3*vertex ] = side==NORTH ? 0.0f : (side==WEST?-R:R);
|
| 789 |
6a06a912
|
Leszek Koltunski
|
normal[3*vertex+1] = 1.0f;
|
| 790 |
|
|
normal[3*vertex+2] = lower ? -R:R;
|
| 791 |
|
|
|
| 792 |
985ea9c5
|
Leszek Koltunski
|
texture[2*vertex ] = x;
|
| 793 |
|
|
texture[2*vertex+1] = 1.0f-(float)(lower? (curr.row-1):(curr.row ))/mRows;
|
| 794 |
6a06a912
|
Leszek Koltunski
|
break;
|
| 795 |
985ea9c5
|
Leszek Koltunski
|
case SOUTH: x = (float)(back ? (curr.col+1):(curr.col ))/mCols;
|
| 796 |
|
|
|
| 797 |
|
|
position[3*vertex ] = x - 0.5f;
|
| 798 |
|
|
position[3*vertex+1] = 0.5f - (float)(curr.row+1)/mRows;
|
| 799 |
6a06a912
|
Leszek Koltunski
|
position[3*vertex+2] = lower ? BACKZ : FRONTZ;
|
| 800 |
|
|
|
| 801 |
39cbf9dc
|
Leszek Koltunski
|
normal[3*vertex ] = side==SOUTH ? 0.0f: (side==EAST?-R:R);
|
| 802 |
6a06a912
|
Leszek Koltunski
|
normal[3*vertex+1] =-1.0f;
|
| 803 |
|
|
normal[3*vertex+2] = lower ? -R:R;
|
| 804 |
|
|
|
| 805 |
985ea9c5
|
Leszek Koltunski
|
texture[2*vertex ] = x;
|
| 806 |
|
|
texture[2*vertex+1] = 1.0f-(float)(lower? (curr.row+2):(curr.row+1))/mRows;
|
| 807 |
6a06a912
|
Leszek Koltunski
|
break;
|
| 808 |
985ea9c5
|
Leszek Koltunski
|
case WEST : y = (float)(back ? (curr.row+1):(curr.row))/mRows;
|
| 809 |
|
|
|
| 810 |
|
|
position[3*vertex ] = (float)curr.col/mCols -0.5f;
|
| 811 |
|
|
position[3*vertex+1] = 0.5f - y;
|
| 812 |
6a06a912
|
Leszek Koltunski
|
position[3*vertex+2] = lower ? BACKZ : FRONTZ;
|
| 813 |
|
|
|
| 814 |
39cbf9dc
|
Leszek Koltunski
|
normal[3*vertex ] =-1.0f;
|
| 815 |
6a06a912
|
Leszek Koltunski
|
normal[3*vertex+1] = side==WEST ? 0.0f : (side==NORTH?-R:R);
|
| 816 |
|
|
normal[3*vertex+2] = lower ? -R:R;
|
| 817 |
|
|
|
| 818 |
39cbf9dc
|
Leszek Koltunski
|
texture[2*vertex ] = (float)(lower ? (curr.col-1):(curr.col ))/mCols;
|
| 819 |
985ea9c5
|
Leszek Koltunski
|
texture[2*vertex+1] = 1.0f - y;
|
| 820 |
6a06a912
|
Leszek Koltunski
|
break;
|
| 821 |
985ea9c5
|
Leszek Koltunski
|
case EAST : y = (float)(back ? (curr.row):(curr.row+1))/mRows;
|
| 822 |
|
|
|
| 823 |
|
|
position[3*vertex ] = (float)(curr.col+1)/mCols -0.5f;
|
| 824 |
|
|
position[3*vertex+1] = 0.5f - y;
|
| 825 |
6a06a912
|
Leszek Koltunski
|
position[3*vertex+2] = lower ? BACKZ : FRONTZ;
|
| 826 |
|
|
|
| 827 |
39cbf9dc
|
Leszek Koltunski
|
normal[3*vertex ] = 1.0f;
|
| 828 |
6a06a912
|
Leszek Koltunski
|
normal[3*vertex+1] = side==EAST ? 0.0f : (side==SOUTH?-R:R);
|
| 829 |
|
|
normal[3*vertex+2] = lower ? -R:R;
|
| 830 |
|
|
|
| 831 |
39cbf9dc
|
Leszek Koltunski
|
texture[2*vertex ] = (float)(lower ? (curr.col+2):(curr.col+1))/mCols;
|
| 832 |
985ea9c5
|
Leszek Koltunski
|
texture[2*vertex+1] = 1.0f - y;
|
| 833 |
6a06a912
|
Leszek Koltunski
|
break;
|
| 834 |
|
|
}
|
| 835 |
|
|
|
| 836 |
39cbf9dc
|
Leszek Koltunski
|
if(texture[2*vertex ]>1.0f) texture[2*vertex ] =2.0f-texture[2*vertex ];
|
| 837 |
|
|
if(texture[2*vertex ]<0.0f) texture[2*vertex ] = -texture[2*vertex ];
|
| 838 |
6a06a912
|
Leszek Koltunski
|
if(texture[2*vertex+1]>1.0f) texture[2*vertex+1] =2.0f-texture[2*vertex+1];
|
| 839 |
|
|
if(texture[2*vertex+1]<0.0f) texture[2*vertex+1] = -texture[2*vertex+1];
|
| 840 |
|
|
}
|
| 841 |
|
|
|
| 842 |
665e2c45
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 843 |
|
|
|
| 844 |
|
|
private void build(boolean frontOnly)
|
| 845 |
|
|
{
|
| 846 |
|
|
int numVertices=0;
|
| 847 |
|
|
float[] positionData= new float[POSITION_DATA_SIZE*dataLength];
|
| 848 |
|
|
float[] normalData = new float[NORMAL_DATA_SIZE *dataLength];
|
| 849 |
|
|
float[] textureData = new float[TEX_DATA_SIZE *dataLength];
|
| 850 |
|
|
|
| 851 |
|
|
//android.util.Log.d("CUBES","building front grid...");
|
| 852 |
|
|
|
| 853 |
|
|
numVertices = buildFrontBackGrid(true, numVertices,positionData,normalData,textureData);
|
| 854 |
|
|
|
| 855 |
|
|
if( !frontOnly )
|
| 856 |
|
|
{
|
| 857 |
|
|
numVertices = repeatLast(numVertices,positionData,normalData,textureData);
|
| 858 |
|
|
if( numVertices%2==1 )
|
| 859 |
|
|
{
|
| 860 |
|
|
//android.util.Log.d("CUBES","repeating winding1 vertex");
|
| 861 |
|
|
|
| 862 |
|
|
numVertices = repeatLast(numVertices,positionData,normalData,textureData);
|
| 863 |
|
|
}
|
| 864 |
|
|
|
| 865 |
|
|
//android.util.Log.d("CUBES","building side grid...");
|
| 866 |
|
|
|
| 867 |
|
|
numVertices = buildSideGrid (numVertices,positionData,normalData,textureData);
|
| 868 |
|
|
|
| 869 |
|
|
//android.util.Log.d("CUBES","building back grid...");
|
| 870 |
|
|
|
| 871 |
|
|
numVertices = buildFrontBackGrid (false,numVertices,positionData,normalData,textureData);
|
| 872 |
|
|
}
|
| 873 |
|
|
|
| 874 |
|
|
/*
|
| 875 |
|
|
android.util.Log.e("CUBES","dataLen="+dataLength+" vertex="+numVertices);
|
| 876 |
|
|
android.util.Log.d("CUBES", "position: "+debug(positionData,3) );
|
| 877 |
|
|
android.util.Log.d("CUBES", "normal: " +debug( normalData,3) );
|
| 878 |
|
|
android.util.Log.d("CUBES", "texture: " +debug( textureData,2) );
|
| 879 |
|
|
*/
|
| 880 |
16d8b8f3
|
Leszek Koltunski
|
|
| 881 |
8d9da98a
|
Leszek Koltunski
|
mEdges.clear();
|
| 882 |
|
|
mEdges = null;
|
| 883 |
|
|
mCubes = null;
|
| 884 |
|
|
|
| 885 |
16d8b8f3
|
Leszek Koltunski
|
if( remainingVert!=0 )
|
| 886 |
|
|
android.util.Log.d("CUBES", "remainingVert " +remainingVert );
|
| 887 |
665e2c45
|
Leszek Koltunski
|
|
| 888 |
05403bba
|
Leszek Koltunski
|
mMeshPositions = ByteBuffer.allocateDirect(POSITION_DATA_SIZE*dataLength*BYTES_PER_FLOAT).order(ByteOrder.nativeOrder()).asFloatBuffer();
|
| 889 |
|
|
mMeshPositions.put(positionData).position(0);
|
| 890 |
665e2c45
|
Leszek Koltunski
|
|
| 891 |
05403bba
|
Leszek Koltunski
|
mMeshNormals = ByteBuffer.allocateDirect(NORMAL_DATA_SIZE*dataLength*BYTES_PER_FLOAT).order(ByteOrder.nativeOrder()).asFloatBuffer();
|
| 892 |
|
|
mMeshNormals.put(normalData).position(0);
|
| 893 |
665e2c45
|
Leszek Koltunski
|
|
| 894 |
05403bba
|
Leszek Koltunski
|
mMeshTexture = ByteBuffer.allocateDirect(TEX_DATA_SIZE*dataLength*BYTES_PER_FLOAT).order(ByteOrder.nativeOrder()).asFloatBuffer();
|
| 895 |
|
|
mMeshTexture.put(textureData).position(0);
|
| 896 |
665e2c45
|
Leszek Koltunski
|
}
|
| 897 |
|
|
|
| 898 |
11fb6ce0
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 899 |
|
|
|
| 900 |
69ed1eb4
|
Leszek Koltunski
|
float[] getBoundingVertices()
|
| 901 |
|
|
{
|
| 902 |
|
|
return mBoundingVert;
|
| 903 |
|
|
}
|
| 904 |
11fb6ce0
|
Leszek Koltunski
|
|
| 905 |
6a06a912
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 906 |
|
|
// PUBLIC API
|
| 907 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 908 |
|
|
/**
|
| 909 |
05403bba
|
Leszek Koltunski
|
* Creates the underlying mesh of vertices, normals, texture coords.
|
| 910 |
6a06a912
|
Leszek Koltunski
|
*
|
| 911 |
a56bc359
|
Leszek Koltunski
|
* @param cols Integer helping to parse the next parameter.
|
| 912 |
|
|
* @param desc String describing the subset of a MxNx1 cuboid that we want to create.
|
| 913 |
|
|
* Its MxN characters - all 0 or 1 - decide of appropriate field is taken or not.
|
| 914 |
|
|
* <p></p>
|
| 915 |
|
|
* <p>
|
| 916 |
|
|
* <pre>
|
| 917 |
|
|
* For example, (cols=2, desc="111010") describes the following shape:
|
| 918 |
|
|
*
|
| 919 |
|
|
* XX
|
| 920 |
|
|
* X
|
| 921 |
|
|
* X
|
| 922 |
|
|
*
|
| 923 |
|
|
* whereas (cols=2,desc="110001") describes
|
| 924 |
|
|
*
|
| 925 |
|
|
* XX
|
| 926 |
|
|
*
|
| 927 |
|
|
* X
|
| 928 |
|
|
* </pre>
|
| 929 |
|
|
* </p>
|
| 930 |
|
|
* @param frontOnly Only create the front wall or side and back as well?
|
| 931 |
6a06a912
|
Leszek Koltunski
|
*/
|
| 932 |
26df012c
|
Leszek Koltunski
|
public MeshCubes(int cols, String desc, boolean frontOnly)
|
| 933 |
6a06a912
|
Leszek Koltunski
|
{
|
| 934 |
3ef3364d
|
Leszek Koltunski
|
super(frontOnly ? 0.0f:1.0f/cols);
|
| 935 |
2e96ee72
|
Leszek Koltunski
|
prepareDataStructures(cols,desc,frontOnly);
|
| 936 |
665e2c45
|
Leszek Koltunski
|
build(frontOnly);
|
| 937 |
|
|
}
|
| 938 |
6a06a912
|
Leszek Koltunski
|
|
| 939 |
665e2c45
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 940 |
|
|
/**
|
| 941 |
05403bba
|
Leszek Koltunski
|
* Creates a full, hole-less underlying mesh of vertices, normals, texture coords and colors.
|
| 942 |
665e2c45
|
Leszek Koltunski
|
*
|
| 943 |
a56bc359
|
Leszek Koltunski
|
* @param cols Number of columns.
|
| 944 |
|
|
* @param rows Number of rows.
|
| 945 |
|
|
* @param frontOnly Only create the front wall or side and back as well?
|
| 946 |
665e2c45
|
Leszek Koltunski
|
*/
|
| 947 |
26df012c
|
Leszek Koltunski
|
public MeshCubes(int cols, int rows, boolean frontOnly)
|
| 948 |
665e2c45
|
Leszek Koltunski
|
{
|
| 949 |
3ef3364d
|
Leszek Koltunski
|
super(frontOnly ? 0.0f:1.0f/cols);
|
| 950 |
665e2c45
|
Leszek Koltunski
|
prepareDataStructures(cols,rows,frontOnly);
|
| 951 |
|
|
build(frontOnly);
|
| 952 |
6a06a912
|
Leszek Koltunski
|
}
|
| 953 |
|
|
}
|
| 954 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|