git.gag.com Git - debian/openrocket/blob - src/net/sf/openrocket/rocketcomponent/ShockCord.java

   1 package net.sf.openrocket.rocketcomponent;
   2
   3 import net.sf.openrocket.material.Material;
   4 import net.sf.openrocket.util.MathUtil;
   5 import net.sf.openrocket.util.Prefs;
   6
   7 public class ShockCord extends MassObject {
   8
   9         private Material material;
  10         private double cordLength;
  11
  12         public ShockCord() {
  13                 material = Prefs.getDefaultComponentMaterial(ShockCord.class, Material.Type.LINE);
  14                 cordLength = 0.4;
  15         }
  16
  17
  18
  19         public Material getMaterial() {
  20                 return material;
  21         }
  22
  23         public void setMaterial(Material m) {
  24                 if (m.getType() != Material.Type.LINE)
  25                         throw new RuntimeException("Attempting to set non-linear material.");
  26                 if (material.equals(m))
  27                         return;
  28                 this.material = m;
  29                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  30         }
  31
  32
  33         public double getCordLength() {
  34                 return cordLength;
  35         }
  36
  37         public void setCordLength(double length) {
  38                 length = MathUtil.max(length, 0);
  39                 if (MathUtil.equals(length, this.length))
  40                         return;
  41                 this.cordLength = length;
  42                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  43         }
  44
  45
  46
  47         @Override
  48         public double getComponentMass() {
  49                 return material.getDensity() * cordLength;
  50         }
  51
  52         @Override
  53         public String getComponentName() {
  54                 return "Shock cord";
  55         }
  56
  57         @Override
  58         public boolean isCompatible(Class<? extends RocketComponent> type) {
  59                 return false;
  60         }
  61
  62 }