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.l10n.Translator;
   4 import net.sf.openrocket.material.Material;
   5 import net.sf.openrocket.startup.Application;
   6 import net.sf.openrocket.util.BugException;
   7 import net.sf.openrocket.util.MathUtil;
   8 import net.sf.openrocket.util.Prefs;
   9
  10 public class ShockCord extends MassObject {
  11         private static final Translator trans = Application.getTranslator();
  12
  13         private Material material;
  14         private double cordLength;
  15
  16         public ShockCord() {
  17                 material = Prefs.getDefaultComponentMaterial(ShockCord.class, Material.Type.LINE);
  18                 cordLength = 0.4;
  19         }
  20
  21
  22
  23         public Material getMaterial() {
  24                 return material;
  25         }
  26
  27         public void setMaterial(Material m) {
  28                 if (m.getType() != Material.Type.LINE)
  29                         throw new BugException("Attempting to set non-linear material.");
  30                 if (material.equals(m))
  31                         return;
  32                 this.material = m;
  33                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  34         }
  35
  36
  37         public double getCordLength() {
  38                 return cordLength;
  39         }
  40
  41         public void setCordLength(double length) {
  42                 length = MathUtil.max(length, 0);
  43                 if (MathUtil.equals(length, this.length))
  44                         return;
  45                 this.cordLength = length;
  46                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  47         }
  48
  49
  50
  51         @Override
  52         public double getComponentMass() {
  53                 return material.getDensity() * cordLength;
  54         }
  55
  56         @Override
  57         public String getComponentName() {
  58                 //// Shock cord
  59                 return trans.get("ShockCord.ShockCord");
  60         }
  61
  62         @Override
  63         public boolean allowsChildren() {
  64                 return false;
  65         }
  66
  67         @Override
  68         public boolean isCompatible(Class<? extends RocketComponent> type) {
  69                 return false;
  70         }
  71
  72 }