initial commit for labryinth project on git_hub.
Signed-off-by: philippe lhardy <philippe@pavilionartlogiciel>
This commit is contained in:
philippe lhardy
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java/org/artisanlogiciel/games/Wall3d.java
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220
java/org/artisanlogiciel/games/Wall3d.java
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package org.artisanlogiciel.games;
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import java.util.Scanner;
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import java.io.OutputStream;
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import java.io.IOException;
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/**
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Wall3d to create walls in 3d
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South, West North East...
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**/
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public class Wall3d
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{
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// 4 triangles in 2 dim space reused 3 times
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final static int BASE[][][] = {{{0,0},{1,0},{0,1}},{{1,0},{1,1},{0,1}},{{0,0},{1,0},{1,1}},{{0,0},{1,1},{0,1}}};
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final static short X=1;
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final static short Y=2;
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final static short Z=4;
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// final static short AXIS[][]= {{X,Y},{-Z,Y},{X,Y},{Z,Y},{X,-Z},{X,-Z}};
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final static short AXIS[][]= {{X,Y,0},{Z,Y,0},{X,Y,1},{Z,Y,1},{X,Z,0},{X,Z,1}};
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public final static Wall3d South = new Wall3d(10,1,10,0,0,0);
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public final static Wall3d West = new Wall3d(1,10,10,0,0,0);
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public final static Wall3d North = new Wall3d(10,1,10,0,10,0);
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public final static Wall3d East = new Wall3d(1,10,10,10,0,0);
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int triangle[][][] = null;
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public Wall3d(int t[][][])
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{
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triangle = t;
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}
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public Wall3d(Wall3d origin, int dx, int dy, int dz)
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{
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triangle=origin.translate(dx,dy,dz);
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}
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Wall3d(int xl, int yl, int zl, int dx, int dy, int dz)
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{
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int f=0;
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triangle = new int[12][3][3];
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int[] factor = {xl,yl,zl};
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int[] translate = {dx,dy,dz};
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for (int i=0; i < 12; i++)
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{
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// point in a triangle
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for (int p=0; p<3; p++)
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{
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short uaxis=0;
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for (int axis=0; axis <2; axis++)
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{
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short caxis = AXIS[i/2][axis];
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if ( caxis >0 )
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{
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f=1;
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}
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else
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if ( caxis <0 )
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{
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f=-1;
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caxis=(short) -caxis;
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}
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uaxis|=caxis;
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if ( caxis == X )
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{
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caxis=0;
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}
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else if ( caxis == Y)
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{
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caxis=1;
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}
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else
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{
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caxis=2;
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}
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// if ( f == 0 )
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// {
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// System.out.println("ERROR");
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// }
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//System.out.println("i " + i + " p " + p + " a " + caxis + " , " + BASE[i%4][p][axis] );
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triangle[i][p][caxis]=translate[caxis] + BASE[i%4][p][axis]*f*factor[caxis];
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}
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if ( (uaxis & X) == 0 )
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{
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uaxis=0;
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}
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else if ( (uaxis & Y) == 0)
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{
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uaxis=1;
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}
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else
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{
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uaxis=2;
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}
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triangle[i][p][uaxis]=translate[uaxis] + AXIS[i/2][2]*factor[uaxis];
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}
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}
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}
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public int[][][] translate(int dx, int dy, int dz)
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{
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int[] translate = {dx,dy,dz};
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int t[][][] = new int[12][3][3];
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for (int i=0; i < 12; i++)
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{
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// point in a triangle
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for (int p=0; p<3; p++)
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{
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for (int axis=0; axis <3; axis++)
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{
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t[i][p][axis]=translate[axis] + triangle[i][p][axis];
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}
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}
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}
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return t;
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}
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public String toString()
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{
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String s = "";
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for (int t=0; t<12; t++)
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{
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s+="facet normal 0 0 0\nouter loop\n";
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for (int p=0; p<3; p++)
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{
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s+="vertex";
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for (int a=0; a<3; a++)
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{
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// s+=" t "+ t + " p " + p + " a " + a + "=" + triangle[t][p][a];
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s+= " " + triangle[t][p][a];
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}
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s+="\n";
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}
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s=s+"endloop\nendfacet\n";
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}
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return s;
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}
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public static void prepare()
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{
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System.out.println(South.toString());
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System.out.println(East.toString());
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System.out.println(North.toString());
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System.out.println(West.toString());
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}
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public static void streamWallsOut(String name, WallsProvider provider, OutputStream stream)
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throws IOException
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{
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int width = provider.getWidth();
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int height = provider.getHeight();
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int xl = 10;
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int yl = 10;
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int zl = 10;
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// WARNING DOWN - UP reversed ( in 2D Y is oriented to lower, in 3D it is to upper ).
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stream.write(("solid " + name + "\n").getBytes());
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for (int x=0; x<width; x++)
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{
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short walls = provider.getWalls(x,0);
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if ( (walls & Brick.UP) != 0 )
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{
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stream.write(new Wall3d(South,x*xl,0,0).toString().getBytes());
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}
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if ( (walls & Brick.LEFT) != 0 )
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{
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stream.write(new Wall3d(West,x*xl,0,0).toString().getBytes());
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}
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}
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for (int y=0; y<height; y++)
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{
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short walls = provider.getWalls(0,y);
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if ( (walls & Brick.LEFT) != 0 )
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{
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stream.write(new Wall3d(West,0,y*yl,0).toString().getBytes());
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}
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for (int x=0; x<width; x++)
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{
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// south and east
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walls = provider.getWalls(x,y);
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if ( (walls & Brick.DOWN) != 0 )
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{
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stream.write(new Wall3d(North,x*xl,y*yl,0).toString().getBytes());
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}
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if ( (walls & Brick.RIGHT) != 0)
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{
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stream.write(new Wall3d(East,x*xl,y*yl,0).toString().getBytes());
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}
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}
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}
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stream.write("endsolid wall\n\n".getBytes());
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}
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public static void main(String args[]) {
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Scanner console = new Scanner(System.in);
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int xl = console.nextInt();
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int yl = console.nextInt();
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int zl = console.nextInt();
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int dx = console.nextInt();
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int dy = console.nextInt();
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int dz = console.nextInt();
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String s="solid wall\n";
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Wall3d instance=new Wall3d(xl,yl,zl, dx,dy,dz);
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prepare();
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s+="endsolid wall\n\n";
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System.out.println(s);
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}
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}
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