Owl Class Reference

The Owl class is one of two current implementations of TPredator. More...

#include <Predators.h>

Public Member Functions
virtual void	BeginStep (void)
	BeingStep behaviour - must be implemented in descendent classes. More...
virtual void	Step (void)
	Step behaviour - must be implemented in descendent classes. More...
virtual void	EndStep (void)
	EndStep behaviour - must be implemented in descendent classes. More...
	Owl (Vole_Population_Manager *ThePrey, int p_x, int p_y, Landscape *p_L, TPredator_Population_Manager *p_PPM)
virtual	~Owl ()
Public Member Functions inherited from TPredator
	TPredator (Vole_Population_Manager *ThePrey, int p_x, int p_y, Landscape *p_L, TPredator_Population_Manager *p_PPM)
	~TPredator ()
bool	OverlapMyTerritory (unsigned x, unsigned y)
virtual void	st_Dispersal ()
virtual void	st_Movement ()
virtual int	st_Hunting ()
unsigned	SupplySpeciesID ()
int	SupplyKill ()
bool	SupplyTerr ()
int	SupplyKillEff ()
int	SupplyHomeRange ()
Public Member Functions inherited from TAnimal
unsigned	SupplyFarmOwnerRef ()
AnimalPosition	SupplyPosition ()
APoint	SupplyPoint ()
int	SupplyPolygonRef ()
int	Supply_m_Location_x ()
int	Supply_m_Location_y ()
virtual void	KillThis ()
virtual void	CopyMyself ()
void	SetX (int a_x)
void	SetY (int a_y)
	TAnimal (int x, int y, Landscape *L)
virtual void	ReinitialiseObject (int x, int y, Landscape *L)
	Used to re-use an object - must be implemented in descendent classes. More...
virtual int	WhatState ()
virtual void	Dying ()
void	CheckManagement (void)
void	CheckManagementXY (int x, int y)
virtual bool	OnFarmEvent (FarmToDo)
Public Member Functions inherited from TALMaSSObject
int	GetCurrentStateNo ()
	Returns the current state number. More...
void	SetCurrentStateNo (int a_num)
	Sets the current state number. More...
bool	GetStepDone ()
	Returns the step done indicator flag. More...
void	SetStepDone (bool a_bool)
	Sets the step done indicator flag. More...
virtual void	ReinitialiseObject ()
	Used to re-use an object - must be implemented in descendent classes. More...
	TALMaSSObject ()
	The constructor for TALMaSSObject. More...
virtual	~TALMaSSObject ()
	The destructor for TALMaSSObject. More...
void	OnArrayBoundsError ()
	Used for debugging only, tests basic object properties. More...

Additional Inherited Members
Protected Member Functions inherited from TAnimal
void	CorrectWrapRound ()
	Corrects wrap around co-ordinate problems. More...
Protected Attributes inherited from TPredator
TTypeOfPredatorState	CurrentPState
unsigned	SpeciesID
unsigned	m_DispersalMax
unsigned	m_SearchArea
int	m_kills_this_season
int	PreyResponse1
int	PreyResponse2
int	m_Search_x
int	m_Search_y
int	SimW
int	SimH
unsigned	m_FailureCount
unsigned	m_NoFailuresBeforeDispersal
unsigned	m_HomeRange
bool	m_HaveTerritory
int	m_KillEfficiency
Vole_Population_Manager *	m_Prey
TPredator_Population_Manager *	m_OurPopulationManager
vector< Vole_Base * > *	CurrentPrey
Protected Attributes inherited from TAnimal
int	m_Location_x
int	m_Location_y
Landscape *	m_OurLandscape
Protected Attributes inherited from TALMaSSObject
int	m_CurrentStateNo
	The basic state number for all objects - '-1' indicates death. More...
bool	m_StepDone
	Indicates whether the iterative step code is done for this timestep. More...

Detailed Description

The Owl class is one of two current implementations of TPredator.

It is configurable via config parameters and in other than name and default configuration it is identical to the Weasel class

Definition at line 208 of file Predators.h.

Constructor & Destructor Documentation

Owl()

Owl::Owl	(	Vole_Population_Manager *	ThePrey,
		int	p_x,
		int	p_y,
		Landscape *	p_L,
		TPredator_Population_Manager *	p_PPM
	)

Definition at line 917 of file Predators.cpp.

                                          : TPredator(ThePrey,p_x,p_y,p_L,p_PPM)
{
    SpeciesID=1;
    m_KillEfficiency=250;  // 25%
    m_HomeRange=800;
    m_SearchArea=50;
    m_DispersalMax=1000;
    m_NoFailuresBeforeDispersal=200;
    PreyResponse1=1;
    PreyResponse2=1;
    SpeciesID=1;
}

References TPredator::m_DispersalMax, TPredator::m_HomeRange, TPredator::m_KillEfficiency, TPredator::m_NoFailuresBeforeDispersal, TPredator::m_SearchArea, TPredator::PreyResponse1, TPredator::PreyResponse2, and TPredator::SpeciesID.

~Owl()

Owl::~Owl ( )

virtual

Definition at line 1005 of file Predators.cpp.

{
    //Nothing to do
}

Member Function Documentation

BeginStep()

void Owl::BeginStep ( void  )

virtual

BeingStep behaviour - must be implemented in descendent classes.

Reimplemented from TPredator.

Definition at line 933 of file Predators.cpp.

{
  int day= m_OurLandscape->SupplyDayInYear();
  if (day==owl_breed_day)
  {
    int noToMake=m_kills_this_season/owl_breed_threshold;
    for (int k=0; k<noToMake; k++)
    {
      // make a new owl
      struct_Predator* sp;
      sp = new struct_Predator;
      sp->PM = m_OurPopulationManager;
      sp->L = m_OurLandscape;
      sp->x = m_Location_x;
      sp->y = m_Location_y;
      m_OurPopulationManager->CreateObjects(OWL,NULL,sp,1); // 1 = owl
      delete sp;
    }
  }
  else if (day==364)
  {
    if (m_kills_this_season<owl_death_threshold)
    {
      if (m_OurPopulationManager->supply_no_inds(OWL)>1)
      {
        m_OurPopulationManager->dec_inds(OWL);
        KillThis();
      }
    }
    m_kills_this_season=0; // reset the count
  }
}

References TPredator_Population_Manager::CreateObjects(), TPredator_Population_Manager::dec_inds(), TAnimal::KillThis(), struct_Predator::L, TPredator::m_kills_this_season, TAnimal::m_Location_x, TAnimal::m_Location_y, TAnimal::m_OurLandscape, TPredator::m_OurPopulationManager, OWL, owl_breed_day, owl_breed_threshold, owl_death_threshold, struct_Predator::PM, TPredator_Population_Manager::supply_no_inds(), Landscape::SupplyDayInYear(), struct_Predator::x, and struct_Predator::y.

EndStep()

virtual void Owl::EndStep ( void  )

inlinevirtual

EndStep behaviour - must be implemented in descendent classes.

Reimplemented from TPredator.

Definition at line 216 of file Predators.h.

{}

Step()

void Owl::Step ( void  )

virtual

Step behaviour - must be implemented in descendent classes.

Reimplemented from TPredator.

Definition at line 967 of file Predators.cpp.

{
  if (m_StepDone || m_CurrentStateNo == -1) return;
  switch (CurrentPState)
  {
   case tops_InitialState: // Initial state
    CurrentPState=tops_Dispersal;
    m_HaveTerritory=false;
    break;
   case tops_Hunting:
    if (st_Hunting()<PreyResponse1) CurrentPState=tops_Movement;
    m_StepDone=true;
    break;
   case tops_Dispersal:
    st_Dispersal();
    CurrentPState=tops_Hunting;
    m_StepDone=true;
    break;
   case tops_Movement:
    st_Movement();
    if (st_Hunting()<PreyResponse2) // alter this figure to increase functional response
     m_FailureCount++;
    else m_FailureCount=0;
    if (m_FailureCount>m_NoFailuresBeforeDispersal)
    {
      m_HaveTerritory=false;
      CurrentPState=tops_Dispersal;
    }
    else CurrentPState=tops_Hunting;
    m_StepDone=true;
    break;
   default:
       m_OurLandscape->Warn("Owl::Step()","unknown state - default");
    exit(1);
   }
}

References TPredator::CurrentPState, TALMaSSObject::m_CurrentStateNo, TPredator::m_FailureCount, TPredator::m_HaveTerritory, TPredator::m_NoFailuresBeforeDispersal, TAnimal::m_OurLandscape, TALMaSSObject::m_StepDone, TPredator::PreyResponse1, TPredator::PreyResponse2, TPredator::st_Dispersal(), TPredator::st_Hunting(), TPredator::st_Movement(), tops_Dispersal, tops_Hunting, tops_InitialState, tops_Movement, and Landscape::Warn().

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The documentation for this class was generated from the following files:

• C:/Repo/ALMaSS_All/Vole/Predators.h
• C:/Repo/ALMaSS_All/Vole/Predators.cpp