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