Help with Task Programming

[Gameoa]

So I’m working on programs getting ready for worlds, and I have some questions about tasks.

1. How do I create a task? Do I need to set up a void variable and then call it through a task function later, or is it something completely different?

2. How do tasks work? Will a task essentially set up a branch of the program that the brain will completely at the same time as the rest of the program or, again, is it something completely different?

3. Could I use a task to run, for instance, a lift leveling program during autonomous? To do this would I call the task at the start and then it will run through it while the autonomous is going on, or maybe put the task in a while loop somewhere in the autonomous section?

Im sorry in advance if these questions have been answered before. Every time I search for them I come up fruitless. Thanks!

[jpearman]

you may want to read this discussion on ROBOTC tasks, however, I need to fix the links in that post, forum upgrade broke everything.

Discussion on using tasks in ROBOTC

It’s time for another one of my long posts, this time discussing ROBOTC tasks and some of the do’s and don’ts. I realize this information is going to be way beyond the comprehension of many of the new students reading it, however, don’t worry, this is complicated stuff and most of you don’t really need to know all of these details, it’s aimed at mentors and those obsessive programmers that want to extract the maximum from ROBOTC. ROBOTC Tasks There were a couple of threads last week that comme…

also, here’s some code I posted last week.

Trying to multitask in Vex Coding Studios for User Control

Here is some example code. It’s from VEXcode but should work in VCS as well. It uses additional tasks for drive and controlling a motor with one button. #include "vex.h" using namespace vex; // A global instance of vex::brain used for printing to the V5 brain screen vex::brain Brain; // A global instance of vex::competition vex::competition Competition; // define your global instances of motors and other devices here vex::motor leftMotor( vex::PORT1 ); vex::motor rightMotor( vex::P…

[Gameoa]

This should be very helpful, although the direct transfer from robotC to VCS could present itself as a small bump in the process.

[jpearman]

The VCS/VEXcode scheduler is very similar to the ROBOTC scheduler. There are some differences due to the fact that ROBOTC was running as a virtual machine and had more control over when exactly the task switching could occur, however, the concepts are very similar.

startTask( myTask ) becomes vex::task taskId( myTask )
wait1Msec(10) becomes task::sleep(10)
AbortTimeSlice() becomes task::yield()

and so on.

(and I fixed the broken links in the original topic)