I copied that part of the code from what Brook wrote, but then I modified it. Clumsily, apparently. OK, so I'll take out that bracket.
@chriscopley go ahead and grab one of the TAs in class right now since they'll be able to sit next to you and go over the code. sorry i couldn't be there.
I did. I sat with Dale, I think. The older TA. He didn't know JS real well, but did help with syntax. Got the thing to run. But my spaceships don't advance. I don't know how to add this.position and this.speed. The + apparently doesn't do it. Or I need parens. Or something.
Feeling better?
@chriscopley i finally debugged your code. basically i had to rewrite the whole thing from scratch to see what the differences where.
- all your added alerts needed semicolons.
- you had a bunch of unnecessary closing brackets in the Spaceship function that wasn't allowing the other properties to be set
- you needed "this.advance" to have "this.position += this.speed" the plus equal means you add speed to the position and then put that new value into position. so you're updating position. this is key. if you don't put the equal sign after position, you're basically just concatenating the two values and not doing math
- you added 3 values when creating new Spaceships when the actually Spaceship constructor just required 2 values.
- the very last alert where it shows the progressReports, you were missing a plus sign before the passengerLinger.progressReport()
fix those things and let me know if it works. i've rewritten yours a few times just fixing those errors and it seems to work now. the += was what really caused the lack of advancement.
and yeah, i'm feeling a little bit better. for some reason it's hard to breathe at night when i'm sick though so i basically just stay up and work. coding4life!
@dianapham Glad you're better. And yes! I noticed the missing + when Dale and I went over the code last night. (Excellent! I noticed something wrong in JS!) I made the += change just now and the code works as intended. But, as I said, I had simplified it so I could get SOMETHING to work -- just two arguments for each class member (name, speed). So I made the remainder consistent with that, and now I need to build out the game to be something more.
yeah, i'm planning on being at lab tonight. and yes, i want to go over css and jquery. i'm waiting for brook to post the slides from yesterday so i can see what you guys went over. was there anything specific you wanted to review for jquery?
(fyi. i'll probably smell like cough drops all night.)
menthol*