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.BugException;
   5 import net.sf.openrocket.util.MathUtil;
   6 import net.sf.openrocket.util.Prefs;
   7
   8 public class ShockCord extends MassObject {
   9
  10         private Material material;
  11         private double cordLength;
  12
  13         public ShockCord() {
  14                 material = Prefs.getDefaultComponentMaterial(ShockCord.class, Material.Type.LINE);
  15                 cordLength = 0.4;
  16         }
  17
  18
  19
  20         public Material getMaterial() {
  21                 return material;
  22         }
  23
  24         public void setMaterial(Material m) {
  25                 if (m.getType() != Material.Type.LINE)
  26                         throw new BugException("Attempting to set non-linear material.");
  27                 if (material.equals(m))
  28                         return;
  29                 this.material = m;
  30                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  31         }
  32
  33
  34         public double getCordLength() {
  35                 return cordLength;
  36         }
  37
  38         public void setCordLength(double length) {
  39                 length = MathUtil.max(length, 0);
  40                 if (MathUtil.equals(length, this.length))
  41                         return;
  42                 this.cordLength = length;
  43                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  44         }
  45
  46
  47
  48         @Override
  49         public double getComponentMass() {
  50                 return material.getDensity() * cordLength;
  51         }
  52
  53         @Override
  54         public String getComponentName() {
  55                 return "Shock cord";
  56         }
  57
  58         @Override
  59         public boolean isCompatible(Class<? extends RocketComponent> type) {
  60                 return false;
  61         }
  62
  63 }