git.gag.com Git - sw/motorsim/blob - src/com/billkuker/rocketry/motorsim/grain/ExtrudedGrain.java

   1 package com.billkuker.rocketry.motorsim.grain;\r
   2 \r
   3 import java.beans.PropertyVetoException;\r
   4 \r
   5 import javax.measure.quantity.Length;\r
   6 import javax.measure.unit.SI;\r
   7 \r
   8 import org.jscience.physics.amount.Amount;\r
   9 \r
  10 import com.billkuker.rocketry.motorsim.Grain;\r
  11 import com.billkuker.rocketry.motorsim.MotorPart;\r
  12 \r
  13 public abstract class ExtrudedGrain extends MotorPart implements Grain {\r
  14         private boolean foreEndInhibited = false;\r
  15         private boolean aftEndInhibited = false;\r
  16         private Amount<Length> length = Amount.valueOf(100, SI.MILLIMETER);\r
  17         private Amount<Length> endLight = Amount.valueOf(0, SI.MILLIMETER);\r
  18         \r
  19         protected int numberOfBurningEnds(Amount<Length> regression){\r
  20                 if ( regression.isLessThan(endLight) )\r
  21                         return 0;\r
  22                 return (foreEndInhibited?0:1) + (aftEndInhibited?0:1);\r
  23         }\r
  24         \r
  25         protected Amount<Length> regressedLength(Amount<Length> regression){\r
  26                 if ( regression.isLessThan(endLight) )\r
  27                         return length;\r
  28                 return length.minus(regression.minus(endLight).times(numberOfBurningEnds(regression)));\r
  29         }\r
  30 \r
  31         public boolean isForeEndInhibited() {\r
  32                 return foreEndInhibited;\r
  33         }\r
  34 \r
  35         public void setForeEndInhibited(boolean foreEndInhibited)throws PropertyVetoException {\r
  36                 fireVetoableChange("foreEndInhibited", this.foreEndInhibited, foreEndInhibited);\r
  37                 boolean old = this.foreEndInhibited;\r
  38                 this.foreEndInhibited = foreEndInhibited;\r
  39                 firePropertyChange("foreEndInhibited", old, foreEndInhibited);\r
  40         }\r
  41 \r
  42         public boolean isAftEndInhibited() {\r
  43                 return aftEndInhibited;\r
  44         }\r
  45 \r
  46         public void setAftEndInhibited(boolean aftEndInhibited) throws PropertyVetoException {\r
  47                 fireVetoableChange("aftEndInhibited", this.aftEndInhibited, aftEndInhibited);\r
  48                 boolean old = this.aftEndInhibited;\r
  49                 this.aftEndInhibited = aftEndInhibited;\r
  50                 firePropertyChange("aftEndInhibited", old, aftEndInhibited);\r
  51         }\r
  52 \r
  53         public Amount<Length> getLength() {\r
  54                 return length;\r
  55         }\r
  56 \r
  57         public void setLength(Amount<Length> length) throws PropertyVetoException {\r
  58                 fireVetoableChange("length", this.length, length);\r
  59                 Amount<Length> old = this.length;\r
  60                 this.length = length;\r
  61                 firePropertyChange("length", old, length);\r
  62         }\r
  63 }\r