slogo.instruction

Class Right

java.lang.Object

slogo.GrammarElement

slogo.instruction.Instruction

slogo.instruction.Right

public class Right
extends Instruction

Turns the turtle clockwise by the specified angle

Field Summary

Fields

Modifier and Type	Field and Description
private GrammarElement	angle

Fields inherited from class slogo.GrammarElement

gelementsToValue

Constructor Summary

Constructors

Constructor and Description
Right(GrammarElement e) Represents a forward instruction

Method Summary

Modifier and Type	Method and Description
java.lang.Object	evaluate(Context c) Evaluate this language construct in some context.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

angle

private GrammarElement angle

Constructor Detail

Right

public Right(GrammarElement e)

Represents a forward instruction

Parameters:

e - the expression to negate

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

a String representation of Right

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.

Specified by:

evaluate in class Instruction

Parameters:

c - is the Context of what we are evaluating

Returns:

the new heading of the turtle in degrees