PermanentGrassTussocky.cpp

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//
// PermanentGrassTussocky.cpp
//
/*
*******************************************************************************************************
Copyright (c) 2011, Christopher John Topping, University of Aarhus
All rights reserved.
 
Redistribution and use in source and binary forms, with or without modification, are permitted provided
that the following conditions are met:
 
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following disclaimer.
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the following disclaimer in the documentation and/or other materials provided with the distribution.
 
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
 
#include "../../Landscape/ls.h"
#include "../../Landscape/cropprogs/PermanentGrassTussocky.h"
 
 
extern CfgFloat cfg_ins_app_prop1;
extern CfgFloat cfg_herbi_app_prop;
extern CfgFloat cfg_fungi_app_prop1;
extern CfgFloat cfg_greg_app_prop;
 
bool PermanentGrassTussocky::Do( Farm *a_farm, LE *a_field, FarmEvent *a_ev )
{
  m_farm  = a_farm;
  m_field = a_field;
  m_ev    = a_ev;
 
  bool done = false;
 
  switch ( m_ev->m_todo ) {
  case pgt_start:
    {
      PGT_CUT_DATE  =0;
      PGT_FERTI_DATE=0;
       // Set up the date management stuff
      m_last_date=g_date->DayInYear(1,10);
      // Start and stop dates for all events after harvest
      int noDates= 1;
      // Start and stop dates for all events after harvest
      m_field->SetMDates(0,0,g_date->DayInYear(15,9));
      // 0,0 determined by harvest date - used to see if at all possible
      m_field->SetMDates( 1, 0, g_date->DayInYear(1,10) );
      // Check the next crop for early start, unless it is a spring crop
      // in which case we ASSUME that no checking is necessary!!!!
      // So DO NOT implement a crop that runs over the year boundary
 
    //new if: do the check only for non-optimising farms and if year>0. (030713 - m_rotation used only in the hidden year, so I modified the condition from >7 to >0)
    int d1;
     if(!(m_farm->GetType() == tof_OptimisingFarm && g_date->GetYearNumber()>0)){
 
      if (m_ev->m_startday>g_date->DayInYear(1,7))
      {
        if (m_field->GetMDates(0,0) >=m_ev->m_startday)
        {
          g_msg->Warn( WARN_BUG, "PermanentGrassTussocky::Do(): "
         "Harvest too late for the next crop to start!!!", "" );
          exit( 1 );
        }
        // Now fix any late finishing problems
        for (int i=0; i<noDates; i++) {
            if(m_field->GetMDates(0,i)>=m_ev->m_startday) { 
                m_field->SetMDates(0,i,m_ev->m_startday-1); //move the starting date
            }
            if(m_field->GetMDates(1,i)>=m_ev->m_startday){
                m_field->SetMConstants(i,0); 
                m_field->SetMDates(1,i,m_ev->m_startday-1); //move the finishing date
            }
        }
      }
      // Now no operations can be timed after the start of the next crop.
 
      int today=g_date->Date();
      d1 = g_date->OldDays() + m_first_date+365; // Add 365 for spring crop
      if (today > d1)
      {
          // Yes too late - should not happen - raise an error
          g_msg->Warn( WARN_BUG, " PermanentGrassTussocky::Do(): "
         "Crop start attempt after last possible start date", "" );
          exit( 1 );
      }
    }//if
 
      // Reinit d1 to first possible starting date.
      d1 = g_date->OldDays()+m_first_date;;
      if ( ! m_ev->m_first_year ) d1+=365; // Add 365 for spring crop (not 1st yr)
      if ( g_date->Date() > d1 ) {
      d1 = g_date->Date();
      }
      // OK, let's go.
      m_field->SetLastSownVeg( m_field->GetVegType() ); //Force last sown, needed for goose habitat classification
 
      ChooseNextCrop (1);
 
      SimpleEvent( d1, pgt_cattle_out1, false );
    }
    break;
 
  case pgt_cattle_out1:
   if (m_field->GetMConstants(0)==0) {
        if (!m_farm->CattleOutLowGrazing( m_field, 0.0, -1)) { //raise an error
            g_msg->Warn( WARN_BUG, "PermanentGrassTussocky::Do(): failure in 'CattleOutLowGrazing' execution", "" );
            exit( 1 );
        } 
    }
    else {  
        if (!m_farm->CattleOutLowGrazing( m_field, 0.0, m_field->GetMDates(1,0) - g_date->DayInYear())) {
            SimpleEvent( g_date->Date() + 1, pgt_cattle_out1, true );
            break;
        }
    }
    SimpleEvent( g_date->Date() + m_field->GetMConstants(0), pgt_cattle_is_out, false );
    break;
 
  case pgt_cattle_out2:
    if (( m_ev->m_lock || m_farm->DoIt( 33 )) || (PGT_FERTI_DATE!=0)) {
        if (m_field->GetMConstants(0)==0) {
            if (!m_farm->CattleOutLowGrazing( m_field, 0.0, -1)) { //raise an error
                g_msg->Warn( WARN_BUG, "PermanentGrassTussocky::Do(): failure in 'CattleOutLowGrazing' execution", "" );
                exit( 1 );
            } 
        }
        else {  
            if (!m_farm->CattleOutLowGrazing( m_field, 0.0, m_field->GetMDates(1,0) - g_date->DayInYear())) {
                SimpleEvent( g_date->Date() + 1, pgt_cattle_out2, true );
                break;
            }
        }
        // Success
        SimpleEvent( g_date->Date() + m_field->GetMConstants(0), pgt_cattle_is_out, false );
        break;
    }
    //Don't graze - but don't end too early;
    SimpleEvent( g_date->OldDays() +g_date->DayInYear(2,7), pgt_wait, false );
    break;
 
 case pgt_wait:
   done=true;
   break;
 
  case pgt_cattle_is_out:
    if (m_field->GetMConstants(0)==0) {
        if (!m_farm->CattleIsOutLow( m_field, 0.0, -1, m_field->GetMDates(1,0))) { //raise an error
            //added 28.08 - issue a warning only if we fail on the last day that this can be done, i.e. MDate
            if(g_date->Date() == m_field->GetMDates(1,0)){
                g_msg->Warn( WARN_BUG, "PermanentGrassTussocky::Do(): failure in 'CattleIsOutLow' execution", "" );
                exit( 1 );
            }
        } 
    }
    else {  
        if (!m_farm->CattleIsOutLow( m_field, 0.0, m_field->GetMDates(1,0) - g_date->DayInYear(), m_field->GetMDates(1,0))) {
          SimpleEvent( g_date->Date() + 1, pgt_cattle_is_out, true );
          break;
        }
    }
    // if they come in then send them out if too early
    if (g_date->DayInYear()<g_date->DayInYear(10,9))
    {
      SimpleEvent( g_date->Date()+1, pgt_cattle_out2, true );
      break;
    }
    // END MAIN THREAD
    done=true;
    break;
 
  default:
    g_msg->Warn( WARN_BUG, "PermanantGrassTussocky::Do(): "
         "Unknown event type! ", "" );
    exit( 1 );
  }
 
  return done;
}