git.gag.com Git - debian/openrocket/blob - core/src/net/sf/openrocket/simulation/customexpression/CustomExpressionSimulationListener.java

   1 package net.sf.openrocket.simulation.customexpression;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5
   6 import net.sf.openrocket.logging.LogHelper;
   7 import net.sf.openrocket.simulation.FlightDataBranch;
   8 import net.sf.openrocket.simulation.SimulationStatus;
   9 import net.sf.openrocket.simulation.exception.SimulationException;
  10 import net.sf.openrocket.simulation.listeners.AbstractSimulationListener;
  11 import net.sf.openrocket.startup.Application;
  12
  13 public class CustomExpressionSimulationListener extends AbstractSimulationListener {
  14
  15         private static final LogHelper log = Application.getLogger();
  16         private final List<CustomExpression> expressions;
  17
  18         public CustomExpressionSimulationListener(List<CustomExpression> expressions) {
  19                 super();
  20                 this.expressions = expressions;
  21         }
  22
  23         @Override
  24         public void postStep(SimulationStatus status) throws SimulationException {
  25                 if ( expressions == null || expressions.size() == 0 ) {
  26                         return;
  27                 }
  28                 // Calculate values for custom expressions
  29                 FlightDataBranch data = status.getFlightData();
  30                 for (CustomExpression expression : expressions ) {
  31                         double value = expression.evaluateDouble(status);
  32                         //log.debug("Setting value of custom expression "+expression.toString()+" = "+value);
  33                         data.setValue(expression.getType(), value);
  34                 }
  35
  36
  37         }
  38
  39         @Override
  40         public boolean isSystemListener(){
  41                 return true;
  42         }
  43
  44 }