slogo.instruction.drawing
Class PenIsDown

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

public class PenIsDown
extends Instruction

Field Summary

Fields inherited from class slogo.language.GrammarElement

gelementsToValue

Constructor Summary

PenIsDown()

Method Summary

java.lang.Object

evaluate(Context c) Evaluate this language construct in some context.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PenIsDown

public PenIsDown()

Method Detail

evaluate

public java.lang.Object evaluate(Context c)

Description copied from class: GrammarElement

Evaluate this language construct in some context. The evaluation may have side-effects, e.g., moving a turtle.

Overrides:

evaluate in class Instruction

Parameters:

c - context in which the evaluation takes place

Returns:

the result of evaluating the construct