slogo.instruction

Class Setxy

java.lang.Object

slogo.GrammarElement

slogo.instruction.Instruction

slogo.instruction.Setxy

public class Setxy
extends Instruction

Field Summary

Fields

Modifier and Type	Field and Description
private GrammarElement	expression1
private GrammarElement	expression2
(package private) java.awt.geom.Point2D	newPoint

Fields inherited from class slogo.GrammarElement

gelementsToValue

Constructor Summary

Constructors

Constructor and Description
Setxy(GrammarElement e, GrammarElement f) Constructs a setxy instruction that can be executed

Method Summary

Modifier and Type	Method and Description
java.lang.Object	evaluate(Context c) Evaluate this instruction in a Context.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

expression1

private GrammarElement expression1

expression2

private GrammarElement expression2

newPoint

java.awt.geom.Point2D newPoint

Constructor Detail

Setxy

public Setxy(GrammarElement e,
             GrammarElement f)

Constructs a setxy instruction that can be executed

Parameters:

e - grammar element

sil - strict instruction list that is the body

Method Detail

evaluate

public java.lang.Object evaluate(Context c)

Evaluate this instruction in a Context.

Specified by:

evaluate in class Instruction

Parameters:

c - the Context for the evaluation

Returns:

the result of evaluating the instruction list the last time

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

setxy followed by the expression and list of instructions