src/org/alterverse/world/Point.java

   1 package org.alterverse.world;
   2
   3 public class Point {
   4 public double x;
   5 public double y;
   6 public double z;
   7 public Point() {
   8 x=0;
   9 y=0;
  10 z=0;
  11 }
  12
  13 public Point(double degrees, double speed) {
  14 // ignore y
  15 x=speed*Math.sin(Math.toRadians(degrees));
  16 y = 0;
  17 z = -speed*Math.cos(Math.toRadians(degrees));
  18 }
  19
  20 public Point(double x, double y, double z) {
  21 this.x = x;
  22 this.y = y;
  23 this.z = z;
  24 }
  25
  26 public Point trim(double spead) {
  27 return new Point(Math.min(x,spead),Math.min(y,spead), Math.min(z,spead));
  28 }
  29
  30 public Point trim(Point p) {
  31 return new Point(Math.min(x,p.x), Math.min(y,p.y), Math.min(z,p.z));
  32 }
  33
  34 public Point bound(double min, double max) {
  35 double lx = Math.abs(x);
  36 double ly = Math.abs(y);
  37 double lz = Math.abs(z);
  38 double mx,my,mz;
  39 if (lx<min)
  40 mx=min;
  41 else if (lx > max)
  42 mx=max;
  43 else
  44 mx=lx;
  45 if (ly<min)
  46 my=min;
  47 else if (ly > max)
  48 my=max;
  49 else
  50 my=ly;
  51 if (lz<min)
  52 mz=min;
  53 else if (lz > max)
  54 mz=max;
  55 else
  56 mz=lz;
  57 Point p=new Point(x,y,z);
  58 if (p.x!=0)
  59 p.x=p.x/lx*mx;
  60 if (p.y!=0)
  61 p.y=p.y/ly*my;
  62 if (p.z!=0)
  63 p.z=p.z/lz*mz;
  64 return p;
  65 }
  66 }