0007000: [Enh] A timer class to measure elapsed time.

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Severity

Reproducibility

Date Submitted

Last Update

0007000

[Squeak] Morphic

minor

N/A

04-04-08 20:44

04-04-08 20:59

Reporter

wiz

View Status

public

Assigned To

Priority

normal

Resolution

open

Status

new

Product Version

Summary

0007000: [Enh] A timer class to measure elapsed time.

Description

Context: you want to know how long has elapsed between steps. The system can not reliably garantee timing since it may or may not do service tasks (like gc) between steps. Or you want to keep track of several times for different tasks.

Problem: No one has made a stop watch class yet.

Solution: A simple class ElapsedTimer that keeps a starting time as a ivar.
Two simple methods.
#timeElapsed (to reset and read the timer)
#timeElapsing (to read the timer without resetting.)

Additional Information

Currently we have timeToRun which is understood only by Blocks.

This is somewhat limiting and if you design objects by looking for useful ones in the real world you will see this resembles a StopWatch.

It seems to me very useful to be able to have as many instances as I want. And if I wanted to do an animation I would have an easier time of making it smooth by using the actual time between steps and the velocity rather than believing all steps are the same duration.

Attached Files

ElapsedTimer.st [^] (1,474 bytes) 04-04-08 20:45

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Issue History
Date Modified	Username	Field	Change
04-04-08 20:44	wiz	New Issue
04-04-08 20:44	wiz	Status	new => assigned
04-04-08 20:44	wiz	Assigned To	=> KenCausey
04-04-08 20:45	wiz	File Added: ElapsedTimer.st
04-04-08 20:59	KenCausey	Assigned To	KenCausey =>
04-04-08 20:59	KenCausey	Status	assigned => new
04-04-08 20:59	KenCausey	Category	Any => Morphic

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