slogo.instruction.drawing
Class Left

java.lang.Object
  extended by slogo.language.GrammarElement
      extended by slogo.instruction.Instruction
          extended by slogo.instruction.drawing.OneParameterInstruction
              extended by slogo.instruction.drawing.Left

public class Left
extends OneParameterInstruction

turns the turtle counterclockwise by the specified angle

Author:
tshishikub

Field Summary
 
Fields inherited from class slogo.instruction.drawing.OneParameterInstruction
param
 
Fields inherited from class slogo.language.GrammarElement
gelementsToValue
 
Constructor Summary
Left(GrammarElement e)
           
 
Method Summary
 java.lang.Object evaluate(Context c)
          turns the turtle counterclockwise by the specified angle
 
Methods inherited from class slogo.instruction.Instruction
evaluateNumericExpression
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Left

public Left(GrammarElement e)
Method Detail

evaluate

public java.lang.Object evaluate(Context c)
turns the turtle counterclockwise by the specified angle

Specified by:
evaluate in class OneParameterInstruction
Parameters:
c - context in which the evaluation takes place
Returns:
the result of evaluating the construct