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HEY WHAT'S UP GUYS I'M Jacob whatso with deps slopes dot com and in the last lesson we got our duration

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label working off of just formatting seconds to show you know hours minutes and seconds so that's really

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cool.

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And in this one now we're going to get our pace working and then we'll have all the data we need to

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finally set up our role models so that's really exciting.

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But first before we get started let's open up terminal and I'm going to just create a new branch get

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check out Desch be lesson 9.

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Right.

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And that is good.

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Whoops.

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OK.

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So underneath our update counter function we're going to create a function for pace.

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And this is just going to be called calculate calculate pace.

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Okay.

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And we'll just opening and closing brackets that.

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Okay so what do we need to calculate our pace.

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We need time and we need distance right so time divided by distance would be your pace.

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So let's go ahead and create a function.

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We want to pass in time and it's going to be in seconds for us so we can just use our counter and that'll

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be of type Integer.

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And then we need distance as well.

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And that will be miles since we already have that.

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And that will be of type double.

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Okay.

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And then we're going to return a string so we can just simply update our label with this function right.

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One thing we're going to need though is we need a pace variable and we want that variable assessable

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up here with our distance and counter.

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So just so basically when we create our relm object after the runs done we're going to need these three

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items.

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So let's just make a VAR.

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And that is going to be pace and it is also going to be an integer so just equals zero.

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And basically when we create our own object we're going to need these three things.

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So down here we can just update our pace with just dividing seconds by Miles Right.

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So let's just go ahead and do.

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Pace equals second.

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I should say seconds.

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That's kind of weird.

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So seconds.

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And then just divide this by miles.

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And it's going to yell at us because Miles is a double right.

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So we need to cast our seconds as a double for now.

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So that will work there.

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And then it's going to yell at us because pace is an integer which is also fine.

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We just are going to cast this as an integer.

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Now now that the math is done and it's just going to kind of it's going to force some round in if you

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don't like the way it's round and you can always format it a little further.

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But for for all our purposes right now this is going to be pretty accurate.

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The way this is and then we can just simply return pace dot.

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And then we can call our format time duration to string.

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And now we have our pace getting returned in the format that we want.

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So that's really cool.

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And now where would we update our pace down here where we're updating locations is a great spot to do

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it right.

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So if we underneath our distance label or we're set in that we just want to before we update pace we

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don't want our pace to update if things are zeroes and like negative numbers for whatever reason.

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Because obviously that means our pases zero.

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So let's just do a quick check.

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This will stop things from crashing.

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So if our counter is greater than zero and if run distance oh man if run if and if run distance is also

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greater than zero then we want to call our pace so we'll just say pace label.

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Text

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equals calculate pace and now we'll just pass in our counter and we'll also pass in our run distance

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and I think that is it.

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Let's go ahead and run our app and we're going to see pace now.

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So we'll start Ron and

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doesn't look like it's working for us.

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Okay.

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So let's figure out figure out what we're doing wrong here.

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So if run distance is greater than zero.

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That's right.

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If counter is greater than zero we want to calculate our pace let's go look at our pace function one

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more time all right.

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Divide in our seconds by miles which that is correct.

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And it I just want to just do a print statement here

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pace and we'll pass in our variable pace.

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Just let's see if we have something come in and let's run this again.

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And let's start this Ron

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pases zero.

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Okay.

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Pases 0 Okay.

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So something is going on with our well our counter's work in let's just see here.

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So our counter

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are run distance is increasing but our pace is not liking what we're doing up here.

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So let's figure this out.

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What if we just do this and we're just going to return a empty string for now.

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Make this a double for now as I want to see if our

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casting here is screwing anything up let's run it one more time.

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OK.

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There we go.

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Oh you know what's happening.

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We don't want to pass in Miles.

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Let's hear

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it.

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We do want to pass and Miles so we're not passing in Miles that's the problem.

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So I just threw in run distance and run distances in meters right now so we're dividing it by a huge

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number.

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And we had to call our meters to Miles function or extension that we created.

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So meters 10 miles to two decimal places is great.

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All right up here we can now return this to the way it was

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cast this as an integer again return pace dot pases a double.

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Now we have to change that back to an integer.

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OK so pace dat format time duration to string.

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OK let's run this again and everything should work.

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We just were dividing by way too big of number since we forgot to convert it back to Miles.

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And let's start our run

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and there we go we have a pace.

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So obviously three minutes is crazy.

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That makes more sense.

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It takes a little bit.

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It is average.

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So as you start running.

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So our average pace is now seven minutes and 46 seconds which is pretty good.

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We have our duration counter going and our distance so we're pretty awesome.

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Now we just got to get our pause button working because our button works and we're almost ready to set

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up relm So in the next lesson we will get that pause button work in and we will also change the pause

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button from pause to play depending on what state we're in.

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And then after that I think we'll go we'll move on to getting our role models set up so we can actually

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save our data instead of like right now we're stuck.

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We can only see our current run if we end that run we lose our data.

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So I will see you guys in the next lesson.