slogo.instruction.drawing
Class Left

java.lang.Object
  slogo.language.GrammarElement
      slogo.instruction.Instruction
          slogo.instruction.drawing.OneParameterInstruction
              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