slogo.instruction

Class Towards

java.lang.Object

slogo.GrammarElement

slogo.instruction.Instruction

slogo.instruction.Towards

public class Towards
extends Instruction

Calculates the direction turtle should be facing and returns this to

Field Summary

Fields

Modifier and Type	Field and Description
private GrammarElement	targetX
private GrammarElement	targetY

Fields inherited from class slogo.GrammarElement

gelementsToValue

Constructor Summary

Constructors

Constructor and Description
Towards(GrammarElement ge1, GrammarElement ge2) Constructs a TOWARDS 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

targetX

private GrammarElement targetX

targetY

private GrammarElement targetY

Constructor Detail

Towards

public Towards(GrammarElement ge1,
               GrammarElement ge2)

Constructs a TOWARDS instruction that can be executed.

Parameters:

ge1 - x coordinate

ge2 - y coordinate

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 heading towards the given point

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

a String representing this instruction as TOWARDS