// Global Variable

city_t THE_NEAREST_CITY;

// Function

// Finds thePlayer's THE_NEAREST_CITY; beyond or equal to theDistance to theLocation
int_f FindTheNearestCity( int_t thePlayer, location_t theLocation, int_t theDistance){

int_t smlDist;
int_t tmpDist;
int_t i;
location_t tmpLocation;
city_t tmpCity;

    smlDist=90000; //initialize to some absurdly large number
    tmpLocation=theLocation;
    if (IsPlayerAlive(thePlayer)) {
         if (PlayerCityCount(thePlayer)> 0) {
	      for(i = 0; i < PlayerCityCount(thePlayer); i = i + 1) {
	           if(GetCityByIndex(thePlayer, i, tmpCity)) {
		        tmpDist=SquaredDistance(tmpLocation, tmpCity.location);
		        if (theDistance <= tmpDist && tmpDist < smlDist) {
			     smlDist = tmpDist;
			     THE_NEAREST_CITY = tmpCity;			    
		        }
	           }
	      }
              if (smlDist<90000) {
	           return  Distance(tmpLocation, THE_NEAREST_CITY); 
              }
	      else{
	           return -1;// no such city exists
	      }
         }
    }
    else{
	 return -1; // no cities at all or not a valid player
    }  
}

// Handlers

HandleEvent(CreateCity)'NewCityTileImprovement' post { //one for new cities

location_t theLoc;
city_t tmpCity;
int_t i;
int_t j;
int_t CityOK;


    CityOK=0;
    if (value[1]==-1) {// if it came from a goody hut
         if (PlayerCityCount(player[0])==1) {// it was the first city
              CityOK=1;
         }
         elseif (PlayerCityCount(player[0])>0) {
	      for(i=0; i<PlayerCityCount(player[0]); i=i+1){
	           GetCityByIndex(player[0], i, tmpCity);
		   if (tmpCity.location==location[0]) {// it's still here, it was legal		        
		        if (FindTheNearestCity(player[0], location[0], 1) ){
                             if (Distance(location[0], THE_NEAREST_CITY.location)<7 
			          && !IsHumanPlayer(player[0])) {//but it's in a lousy location, so
                                  event:DisbandCity(tmpCity);    
			     }
			     else{
                                  CityOK=1;
		             }
			}
		   }
	      }
         }
    } 
    elseif (CityIsValid(city[0])) {        
         CityOK=1;
    }   
    if (CityOK==1) {    
         for (i=0; i<=7 ; i=i+1) { //directions
              GetNeighbor(city[0].location, i, theLoc);//look around
	      if ( CellOwner(theLoc)==city[0].owner && HasGood(theLoc)==-1) {
	           if (TerrainType(theLoc)==0 || TerrainType(theLoc)==7 )  { // 0=forest, 7=jungle
                        Terraform(theLoc, 4);//change to grassland
		   }
              }
         }
    }
}


HandleEvent(MakePop)'ExpandingCityTileImprovement' post {

location_t theLoc;
location_t firstLoc;
int_t j;
int_t tmpPw;

// this triggers when the city's population grows to
// 8, the min population for citysize1

         player[0]=city[0].owner;
	 if (city[0].population>=4) {
              message(city[0].owner, 'Deforest');
              GetNeighbor(city[0].location, 0, firstLoc);//go north of the City
              for (j=0; j<=7 ; j=j+1) { //directions
                   GetNeighbor(firstLoc, j, theLoc);//look around
                   
                   if ( CellOwner(theLoc)==city[0].owner && HasGood(theLoc)==-1) {
	                if (TerrainType(theLoc)==0 || TerrainType(theLoc)==7 )  {
		        // 0=forest, 7=jungle
        		     setPW(city[0].owner, tmpPw);
		             Event:CreateImprovement(city[0].owner,theLoc, 28,0);
                             //change to grassland
			}
		   }
              }
         }
	 GetNeighbor(city[0].location, 2, firstLoc);//go east of the City
         for (j=0; j<=7 ; j=j+1) { 
              GetNeighbor(firstLoc, j, theLoc);
                    
              if ( CellOwner(theLoc)==city[0].owner && HasGood(theLoc)==-1) {
	           if (TerrainType(theLoc)==0 || TerrainType(theLoc)==7 )  { 
		   // 0=forest, 7=jungle
                        Event:CreateImprovement(city[0].owner,theLoc, 28,0);
			//change to grassland
		   }
              }
         }
	 GetNeighbor(city[0].location, 5, firstLoc);//go west of the City
         for (j=0; j<=7 ; j=j+1) { //directions
              GetNeighbor(firstLoc, j, theLoc);//look around                 
              if ( CellOwner(theLoc)==city[0].owner && HasGood(theLoc)==-1) {
	           if (TerrainType(theLoc)==0 || TerrainType(theLoc)==7 )  { 
		   // 0=forest, 7=jungle
		        Event:CreateImprovement(city[0].owner,theLoc, 28,0);
                        //change to grassland
		   }
              }
         }
	 GetNeighbor(city[0].location, 7, firstLoc);//go south of the City
         for (j=0; j<=7 ; j=j+1) { //directions
              GetNeighbor(firstLoc, j, theLoc);//look around
              if ( CellOwner(theLoc)==city[0].owner && HasGood(theLoc)==-1) {
	           if (TerrainType(theLoc)==0 || TerrainType(theLoc)==7 )  {
		   // 0=forest, 7=jungle
		        Event:CreateImprovement(city[0].owner,theLoc, 28,0);
                        //change to grassland
		   }
              }     
         }
   
}

MessageBox 'Deforest' {
    Show();
    MessageClass(601);
    Text(ID_City_Deforest);
    Button(ID_EXIT) {
		Kill();
    }
    Button(ID_NoMoreTheseMessages) {
		KillClass(g.player, 601);// DisableMessageClass(601)
    }
}


///////////// FROM SCENARIO_STR.TXT

            
EXIT     "Exit" 
NoMoreTheseMessages "Don't Show Me This Again"

City_Deforest "Sire, The city of {city[0].name} is bursting at the seams. We have 
sent squads of workers to scour the surrounding countryside and collect building
materials for it's expansion."