slogo.instruction.drawing
Class Heading

java.lang.Object
  slogo.language.GrammarElement
      slogo.instruction.Instruction
          slogo.instruction.arithmetic.NumericInstruction
              slogo.instruction.drawing.Heading

public class Heading
extends NumericInstruction

Author:

tshishikub

Field Summary

Fields inherited from class slogo.language.GrammarElement

gelementsToValue

Constructor Summary

Heading()

Method Summary

java.lang.Double

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

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

Heading

public Heading()

Method Detail

evaluate

public java.lang.Double 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 NumericInstruction

Parameters:

c - context in which the evaluation takes place

Returns:

the turtle's heading in degrees