fentity.m

仿真人工金融市场Jackson代码

// #define __USE_FIXED_PROTOTYPES__  // for gcc headers

#import <math.h>
//#include <string.h>
//#include <stdio.h>
//#include <stdlib.h>

//#import <tkobjc.h>
//#import <gui.h>
//#import <simtools.h>

#import <random.h>
#import "FEntity.h"
#import "ILink.h"
#import "BLink.h"
#import "BankModelSwarm.h"

@implementation FEntity

- setCanvas: aCanvas
{
  [super setCanvas: aCanvas];
  if (investLink)
    [investLink setCanvas: aCanvas];
  if (borrowLink)
    [borrowLink setCanvas: aCanvas];
  return self;
}

- setIncome: (double) aVal andAv: (double) avInc { //***
   Income = aVal ; // ***
   averageIncome =  avInc ; // ***
  return self ;   // ***
}

- setTranCostBas: (double) aVal {               
  TranCostBas = aVal  ; // ***
return self;   // ***
}  // ***
 
-setTotalAgentNum: (int) total {
  totalAgentNum = total ;
  return self ;
}

-makeInvestLinkTo: aFEntity {

  investLink = [[[[ILink createBegin: [self getZone]] 
                          setCanvas: canvas]
                          setFrom: self To: aFEntity] 
                          createEnd] ;

  return self ;
}

-makeBorrowLinkTo: aFEntity {
  borrowLink = [[[[BLink createBegin: [self getZone]] 
                          setCanvas: canvas]
                          setFrom: self To: aFEntity] 
                          createEnd] ;

  return self ;
}

-transferInvestLinkTo: aFEntity {
  [investLink drop] ;
  [self makeInvestLinkTo: aFEntity] ;
  return self ;
}

-transferBorrowLinkTo: aFEntity {
  [borrowLink drop] ;
  [self makeBorrowLinkTo: aFEntity] ;
  return self ;
}

-createEnd {

  [super createEnd] ;

  [self makeInvestLinkTo: self] ; 
  [self makeBorrowLinkTo: self] ;

  IOPbool = 0 ;
  loanCount = 0 ;
  investCount = 0;
  capital = 0 ;
  IOPG = 0 ; // ***
  ciclo= 1 ; // ***
  return self ;
}

-(int) getPrevROI {
  return prevROI ;
}

-(int) getPrevCapital {
  return prevCapital ;
}

-(const char *)getInstanceName {
  return label ;
}

-setEntityName: (char *) the_name{
  label = the_name ;
  return self ;
}

-setModel: aModelSwarm {
  model = aModelSwarm ;
  return self ;
}

-attrIncome{                           //***

            [self setIncome: [uniformDblRand  getDoubleWithMin: 0.0   //***
            withMax: averageIncome] andAv: averageIncome];          //***
return self;
}                                                           //**

-attrTranCostBas{                           // ***

           [self setTranCostBas: TranCostBas]; // ***
return self; // ***
} // ***

-encounter {  
  id someone;

  if([uniformDblRand getDoubleWithMin: 0.0
                              withMax: 1.0] 
                      < [model getProbEncounter]){
    someone = [model getRandomFEntity] ;
    if([someone getPrevROI] > [[investLink getTo] getPrevROI])
      [self transferInvestLinkTo: someone] ;
    if([someone getPrevCapital] > [[borrowLink getTo] getPrevCapital])
      [self transferBorrowLinkTo: someone] ;
  }
  ciclo++; // ***
  return self ;
}

-collectInvestment: (int) amount {
  investCount++ ;
  capital += amount ;
  return self ;
}

-invest{
  [[investLink getTo] collectInvestment: Income] ; // ***
  return self ;
}

-requestLoan {
  loanCount++ ;
  return self ;
}

-generateIOP{

  if([uniformDblRand getDoubleWithMin: 0.0
                              withMax: 1.0] < [model getProbIOP]){
    if(canvas){
      //set the border width once and for all somewhere else...
      [[nodeItem setBorderColor: "blue"] setBorderWidth: 3] ;
      GUI_UPDATE_IDLE_TASKS ();
    }
    [[borrowLink getTo] requestLoan] ;
    IOPbool = 1 ;
  }
  return self ;
}

-(int)borrowingFrom: anFEntity {
  if(([borrowLink getTo] == anFEntity) && IOPbool)
    return 1 ;
  else
    return 0 ;
}

-(int)investingIn: anFEntity {
  if([investLink getTo] == anFEntity)
    return 1 ;
  else
    return 0 ;
}

-(double) generateROI: (double) investment {
   


  if(canvas){
    [nodeItem setBorderColor: "black"] ;
    GUI_UPDATE_IDLE_TASKS ();
  }

  IOPbool = 0 ;

  Esperienza = IOPG / (totalAgentNum+ciclo) ; // ***

  if([uniformDblRand getDoubleWithMin: 0.0
                              withMax: 1.0]-Esperienza< [model getProbIOPSuccess])
   return investment * [model getIOPmultiplier] ; // ***
  IOPG++ ; 
  return 0.0 ;
}

-(int) incident {
  if([fromList getCount])
    return 1 ;
  else 
    return 0 ;
}

-(int) countInvestors {
   id index,aLink ;
   int count ;

   count = 0 ;

   index = [fromList begin: [self getZone]] ;
   while( (aLink = [index next]) )
     if([aLink isInvestLink])
       count++ ;
   [index drop] ;

   return count ;
}

-(int) countBorrowers {
   id index,aLink ;
   int count ;

   count = 0 ;

   index = [fromList begin: [self getZone]] ;
   while( (aLink = [index next]) )
     if([aLink isBorrowLink])
       count++ ;
   [index drop] ;

   return count ;
   
}

-(double) getInvestorLinkProbability {
  return ((double) [self countInvestors]) / ((double) totalAgentNum) ;
}

-(double) getBorrowLinkProbability {
  return ((double) [self countBorrowers]) / ((double) totalAgentNum) ;
}

-lend{  
  double amountLoaned, cumulativeResult, cumulativeResultL ;
  id index, link, someone ;

  // less than amountLoaned
  // this represents the potential
  // loan assuming an extra client

  prevCapital = capital / (loanCount + 1) ; 
    cumulativeResultL = 0.0; // *** 
                                          
  if(loanCount){
    cumulativeResultL = 0.0; // ***
    cumulativeResult = 0.0 ;
   


    TranCost=(TranCostBas*2)/IOPG+(TranCostBas*10)/capital; // ***
    amountLoaned = (double) capital / (double) loanCount ;
    index = [fromList begin: globalZone] ;
    while( (link = [index next]) ){
      someone = [link getFrom] ;
      if([someone borrowingFrom: self]){
        double partial ;
        partial = [someone generateROI: amountLoaned] ;
        cumulativeResultL += partial ; // ***
     
      }
  
}
    cumulativeResult = cumulativeResultL-(TranCost*loanCount) ; // ***    
    [index drop];
  } else {
    cumulativeResult = capital; 
  }
 

  if(investCount)
    prevROI = floor(0.5 + (cumulativeResult / ((double)investCount))) ;
  else 
    prevROI = Income ; // ***

  investCount = 0 ;
  loanCount = 0 ;
  

  return self ;
}

@end