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/* XLogo4Schools - A Logo Interpreter specialized for use in schools, based on XLogo by Lo�c Le Coq
* Copyright (C) 2013 Marko Zivkovic
*
* Contact Information: marko88zivkovic at gmail dot com
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version. This program is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details. You should have received a copy of the
* GNU General Public License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*
* This Java source code belongs to XLogo4Schools, written by Marko Zivkovic
* during his Bachelor thesis at the computer science department of ETH Z�rich,
* in the year 2013 and/or during future work.
*
* It is a reengineered version of XLogo written by Lo�c Le Coq, published
* under the GPL License at http://xlogo.tuxfamily.org/
*
* Contents of this file were initially written by Lo�c Le Coq,
* modifications, extensions, refactorings might have been applied by Marko Zivkovic
*/
package xlogo.kernel;
import java.math.BigDecimal;
public class LoopFor extends LoopProperties{
/**
* This boolean indicates
* @uml.property name="conserver"
*/
protected boolean conserver=false;
/**
* The variable name
* @uml.property name="var"
*/
String var="";
/**
* Constructor Loop: For
* @param counter The beginning integer
* @param end The end integer
* @param increment The increment between two values
* @param instr The instruction to execute between two values
* @param var The name of the variable
*/
LoopFor(BigDecimal counter,BigDecimal end,BigDecimal increment,String instr,String var){
super(counter,end,increment,instr);
this.var=var;
}
protected boolean isFor(){
return true;
}
protected boolean isForEver(){
return false;
}
/**
* This method affects the variable counter the correct value
* @param first boolean that indicates if it is the first affectation
*/
protected void AffecteVar(boolean first){
String element=String.valueOf(super.getCounter());
if (element.endsWith(".0")) element=element.substring(0,element.length()-2) ;
if (element.startsWith(".")||element.equals("")) element="0"+element;
if (Interprete.locale.containsKey(var)){
if (first) conserver=true;
Interprete.locale.put(var, element);
}
else {
Interprete.locale.put(var,element);
}
}
/**
* This method deletes the variable var from the local stack variable
*/
void DeleteVar(){
if (!conserver){
if (Interprete.locale.containsKey(var)){
Interprete.locale.remove(var);
}
}
}
}
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