Snake Program on the TI 83/84+
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- Опубліковано 15 лис 2013
- Check out my new Kotlin tutorial series: • Video NOTE: PLEASE TURN ON ANNOTATIONS, THERE ARE IMPORTANT FIXES TO THE CODE
In this video we make snake for the TI 83/84+.
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It would be helpfull if I was able to see the buttons
Do 2nd + catalog and search up a code
Agreed
Did you turn your brain on first?
do you mind actually explaining what menu's you are going into? 45 seconds into the video and im already lost
Bolt Strikes
Yeah, I know right?! Same!
For getting ZStandard, just press "Zoom" along the top bar by the screen.
@@agentpdx how do u get cleaned draw
You can just enter the catalog and look for it there
Agentpdx do you know how to make the list
This is so cool! It makes sense too. Thank you for teaching me programming
Can someone just type a list of what i need to do? The annotations throw me off a bit, so I'm not entirely sure about how to do this.
WHEN U SAID, "THAT'S WHAT SHE SAID " I DIED MAN! SO OUT OF NOWHERE, I LOVE IT ! 10/10 tutorial
this man types faster on his calculator than i do on a phone...
Bruh he’s on a computer
I can’t see what menu you go into to get the graph settings, and does this work on a TI-83?
He's that type of guy that will program everything in 0,0000000000000000000000000000001 nanoseconds, but as it comes to explaining it....
it's the type of guy that is very good at written exams, but when it comes to oral exams..... :-p
Awesome! Thanks for this tutorial, It works great!
Can someone tell me what all of the variables are though? Thanks
To fix the bottom wall, change the third line to: Line(-10,-10,10,-10)
thanks
You rocks!
Wym the third line that says 0->s?
@@tripskz6829 he means the third one that says :Line(
its the 17th line I guess
Thank you
Thx man now I'm not gonna be bored in math class
When he gets to the part about the border lines, you will want to put in the following:
Line(-10,10,10,10)
Line(-10,10,-10,-10)
Line(-10,-10,10,-10)
Line(10,10,10,-10)
The first two numbers after "Line" are the starting X and Y coordinates, and the third and fourth numbers are the ending X and Y coordinates respectively.
I have a question about the code. How does the code display multiple white pixels moving at a time?
Collisions and scoring help? I’d like to have the game end and show my score when I hit my tail/a wall
This should help a lot of you with problems.
As has been mentioned, the code in the annotation "If pix-test(y,x)=1..." does seem to screw things up. This is the piece of code that causes the program to halt if you run yourself over. The program will work without it however. Delete it, and the program should run fine. If you see the two dots, then that is a good sign-it means that the program is mostly working. Press any of the arrow keys, and the game should begin. If an error is thrown, press two or "GOTO" and it will take you to the line of code that caused the error. Code is extremely picky, and the slightest error can cause it to stop working. Come through again and again, line by line, looking for any discrepancies.
You will notice that the code is broken into sections of functionality. Knowing what does what will help you greatly in troubleshooting the problem. The first section lays out the basic structure of the program. The end of Line(10,-10... stuff concludes the static layout of the program. You should be able to execute the program with nothing after those four lines like he does in the video. If all you have is that section written, and it doesn't work, then look in there for you error.
Beginning with the ":LBL1 :GETKEY" line, is where the coding for the movement starts. If you can load the screen, but move, start there and work your way down line by line looking for an error. Note that the calculator won't always tell you if a code is improperly written. It will tell you if a code doesn't make since, it won't necessary if you told it to do the wrong thing, so long as it is an actually command of some sort.
After you've deleted the annotated "pxl-Test" code, you will be abel to run yourself over. I rewrote a section of that code, and it works fine. Here is what I used: " :If pxl-Test(Y,X)=1 and Y≠ A
:Stop"
This code should be written just under the line that says Pxl-Off(LY(K)...Basically what the code I gave you says is, if the pixel at the coordinate occupied by (Y,X) (the snake) turns off, and that coordinate is not equal to A (which is where the apple is) then stop the program. The reason is, because when there are two "on" signals to the same pixel, the pixel changes to off. The snake is on, but if it runs itself over, there or two "on" signals, which turns on of them off. This indicates that you've run you self over, and thus should stop the game. I am not exactly sure why this is, but if you run the program without this code, you will erase yourself as you run yourself over.
How do you change it to a smaller window? ITs really hard to see on my Calculator and is only 1 pixel wide to hit making it obvious that I am playing a game.
Hannah Lewis n
Coo! Never knew graphing calculators can do so much stuff!! I'm going to buy one for g12 math.
Just curious could the snake and eggs have been programmed thicker?
I own a Ti-84 Plus C silver edition, and cannot get the controls to work. How do I fix this?
Hey how do you fix it, if it all that shows up is a plus sign and the one dot you're supposed to get?
For all of you who want to make it so you can run into yourself do this:
After the x or y is changed, but before you do the drawPixel command, do
If pxl-test(Y,X)=1 and Y =/= A and X =/= B
Then
Stop
End
Im not much of a genius on calculators, so i can't figure out exactly where to put that in the code. I thought i put that code in the right spot, but then once i hit a wall it immediately had the pen that looks like a + thing appear and the whole game basically just paused.
That is what should happen. The game stopped and you were just on the graphing screen.
pj6444 I updated the code so that when that happens, instead it clears the draw and just goes back to the regular empty calculator mode. However, there is just one more problem: running into the "apple" also stops the game. Could you do something like store a different number value in the apple or something similar that you could allow the snake to run into? Or is there a way at all to fix that?
I can't remeber what the variables for the position of the apple were, but if you know those you can add this to the if statement that you added.
!= is does not equal
If pxl-test(y,x)=1 and (x!=appleX or y!=appleY)
The appleX and appleY are A and B I believe, but I am not entirely sure.
***** He meant for you to replace the ! and the = into a not equal sign, he basically used ! because it's commonly used in coding to represent "not".
I get an error data type and brings me to line where it says
If Pxl-off(Ly(K),Lx(K))
Sup and subbed bro
any reason why my snake doesn't stop growing whenever it moves, the pixels at the end not deleted
Is there anyway to program it so that you lose when the snake hits itself?
The game works, but all I see is a dot. Not a snake. The dot moves and can collect the apples but doesn’t grow. Can anybody help?
Mahvelous 21 I have basically the opposite problem, the snake keeps getting bigger
How do I make the snake speed up or slow down? Mine goes pixel by pixel, which isn't bad, but I would like to speed it up a bit.
Did you figure this out? 4 years later lol
I am trying to do this on a Ti-82, but it doesnt like pxl-on(A,B), also im using L1(with number under) and L2 instead of LX and LY.. so i changed A,B to X and Y..it liked it but then didnt like pxl-on(L2(K),L1(K)) it says its a domain error...any help please?
How are the arrows assigned to the code? As in what code allowed you to use your arrows to move the snake?
Jacob Knop I don’t knoe
It's the getkey command, which basically checks what key is pressed and returns the value assigned to this key.
"that's what she said, heh heh"
How much RAM does this take up, and also is it more or less than Pong; if more, how much does Pong take up?
When i hit the apple it says ERR:ARGUMENT
and when I press goto it points at the randInt part but I have completely compied your work.
Do you have any tips for me?
Btw the barrier isn’t the black around it, the barrier is the abyss that kill u, so u can actually just eat the wall but it doesn’t give points
I really liked it. 😄
How do you make the snake and apple bigger?
5:18 everytime i program ever
5:47 dosn't work because you didn't close off the last line(..) with a )
oh wait no i'm just stupid
end parentheses arent necessary, just optional if youre focused on aesthetics
yeah this was before i was good at it
How do you control the snake?
I'm having troubles with this program. when I execute, it generates two random apples, but no snake, and no error. Any tips?
Same
So, I tried this, but the buttons don't do anything. It just goes is a straight line and says ERROR:DOMAIN.
Do you know what I'm doing wrong?
It's pretty easy to make a pause button (I chose the enter button but change the number to whatever you want for other buttons). Put the following under the part where you change direction
1-->p
If G=105 and p=1
Then
Pause
0-->P
End
If G=105 and p=0
Goto 1
Also, how would you make it so that you die when crash into your body? I tried to use the pxl-test but I couldn't get it to work. Where would you put it? And what would you write exactly?
Thanks
Hey, I'm not getting errors, but my paddles refuse to move. Ideas?
Did it on my ce, and the play screen is very tiny in the top left. Help?
So I don't understand the part at 10:47 about adding the stuff in can you help me?
It wouldn't let me control the snake, and I have a letter version of the calculator , and there are more pikers, causing the snake to be very small. How do I fix this
It's pretty hard, I have tried a few times but failed each time. Just lessen the borders to make the "playing field" smaller.
I accidentally broke my snake, this helped me get it back. It would’ve been helpful to see the buttons
@Christos Karamanos he's using an emulator on the pc. I had to pause. The video multiple times, but I learned a lot while doing it.
What's "score" mentioned at 12:04 and how do you get there?
So at what point in the code does the snake actually start. I got my borders perfect and have gone back through the video a few times but I can't seem to get my snake to start moving and then it just turns into a graph with 2 points on it? anyone have any thoughts how I might fix this?
For everyone having trouble with controls hit a-lock before hitting the enter to start the program and then use the arrow buttons
diddnt work
Thank you❣️
works perfectly but sometimes it stops and shows the corrds?
My snake doesn't grow when I eat the apple. I must have messed up when you were adding that. Do u know where in the video that happened?
Darragh Cooley
If X=B and Y=A
Then
S+5->S Either this line
dim(LY)+5->dim(LY) This line
dim(LX)+5->dim(LX) Or this line has an error
randInt(1,93)->B
randInt(1,61)->A
End
It's awesome, but when i go into the wall, it says
ERR:DOMAIN
1:Quit
2:Goto
Please help.
Please like this so it gets up top:
For everyone who has the error with the sides of the screens do this after you change the x and y position of the snake:
If X=62 or X=1 or Y=1 or Y=94
Stop
That should fix your problem
After the x or y is changed.
pj6444 if you do the following code, the boundaries have been greatly reduced invisibly. Are you sure? Try a remake of that boolean. I crashed and died when I headed too right
Agentleader1 its happening to me
Sidra Knox I'm still trying to get the source code up. Hold on, be patient...
I'm on ti 84 plus ce and the apple only spawns in the top left quadrant how do I fix this
It takes a while to load. I waited like a minute. It displays the borders and the food things that u are supposed to collect. But the snake's body isnt visible and i cant control it. Its stationary
The apples a TINY how do I fix this. I have tried everything i could think of but it wouldnt work
One of the comments helped me get the bottom wall. I also got it to collide with itself, so everything works good. Im just wondering if you could make it a little bit bigger. Like instead of being 1x1 pixels, maybe the snake and apple could be 2x2 or 3x3. Also, can you elaborate on how you would display the score? Thanks. Great game btw. Thanks!
press zoom
It says EROOR:SYNTAX when I press "go to" it takes me to "1>D" How do I fix it!
Can this be done on a ti-83 or does it have to be a ti-83 +?
I am getting an "error syntax" and it is taking me to the 4:th "Line" row
I see alot in the comments that this is a common problem:
Whenever I press the keys that are supposed to change direction or whatever, it backs out and types the number I've just pressed. It's not accepting my input. Is there a way to make the program really run, and not just display?
btw I'm using a TI-84 Plus calculator ;)
Why when I ran a test where you ran a test with the diagonal line at like 4:28 in the video I get err:Archived 1: quit 2:go to ?
CTG85 I got that to. I have no idea why that happens.
I made a list of all the options in your video. Great job by the way!
(I have a question, if I want to make the pixels bigger, how do I do that?)
(Press read more for the whole thing)
: ClrDraw
: ZStandart
: 1 -> D
: 0 -> S
: 5 -> dim(LX)
: 5 -> dim(LY)
: 1 -> K
: 10 -> X
: 10 -> Y
: randInt(1,93)
: randInt (1,62)
: Horizontal 10
: Horizontal -10
: Vertical 10
: Vertical -10
:
: Lbl 1
: getKey ->G
:
: Pxl-On(A,B)
: If G=26 and D!=2
: 1 -> D
: If G=24 and D!=1
: 2 -> D
: If G=25 and D!=4
: 3 -> D
: If G=34 and D!=3
: 4-> D
: If D=1
: X+1-> X
: If D=2
: X-1-> X
: If D=3
: Y-1-> Y
: If D=4
: Y+1-> Y
:
: Pxl-Off(LY(K),LX (K))
: If pxl-test(Y,X) and Y != A and X!=B
: Stop
: If X=62 or X=1 or Y=1 or Y=94
: Stop
: Pxl-On (Y,X)
: X-> LX(K)
: Y-> LY(K)
: If X=B and Y=A
: Then
: S+5->S
: dim(LY)+5-> dim(LY)
: dim(LX)+5-> dim(LY)
:
: randInt(1,93)->B
: randInt(1,61)->A
: End
:
: K+1->K
: If K=dim(LX)
: 1->K
:Goto 1
You are welcomed!
Thanks, but at the beggining of the video, he did
LX
Then he pressed Enter and it appers "Error" but me it is {0 0 0 0 0}.
After entering all the "codes" shown in the video in the program, when I going to start it, my graphing calculator say:
ERR:SYNTAX
1:Quit
2:Goto
Why?
press goto and tell me where the line of error is? because i did exactly what he did in the video and it worked out even if its really slow and small
TzT Infinity
+Cedric Comte
it's at Pxl-Off ( LY(K) , LX2K))
TzT Infinity its not a 2 its a ( but if you typed it wrong only here then its okay just try to delete the line, run it, then when it gives you an eror just type it back it might work cause sometimes its just a calculator proplem not you
I have it play normally but if I run into myself I don't die. Any way to fix?
Is there any way thos can br zoomed in more?
YESSS! IT WORKED!!
Need a video that shows the buttoms because new to the calculator and don't know where half the commands and stuff are.
As far as i know, I've been able to run and input all commands and code correctly, but for some reason the apple isn't appearing. (TI-84 Plus)
ik you commented 7 years ago but i dealing with same issue in 2021 any help could you maybe help me figure it out lol your prob like 25 now or something so i doubt you even use this any more
Whenever I hit the "apple" It says that I have an invalid dim. Pls help I have no idea what to do. When I say go to it takes me to the line that says, "Pxl-Off(LY(K), LX(K))
i have a ti 83 and it crashes with a syntax error when it starts and when i press goto it brings me to lbl 1
the second line should be like this:
:Line(-10,-10,10,-10)
how do i output the score now?
Does anyone know what the code would be to make the snake die if they hit their own tail?
mine is on a TI-83 plus, and everything works, but the apples aren't appearing
I'm using a TI-84 PLUS CE, can it still work for me?
Can some help. I typed all of the stuff but when i click run There is no snake,just an apple
Hey, I keep getting an error (ERR:DOMAIN) why would that be?
I Love you Boy math isn't boring now
Everything works, except I can't move up. What did I miss?
please help, when I start the program it says error domain and when i select goto it says that pxl-off(ly(k),lx(k)) that my k has two )) and when i remove 1 stilll error please help
I have a ti 82 plus c silver edition and the snake is tiny and you can't see the apples any way to fix
no only t 83 and above work correctly
my snake still makes a line where he was and and doen't just move normaly any help?
Can't get the snake to move left... constantly going right, but can go up and down...
Any suggestions?
having the same problem someone help
when I go to clear draw I get a total diffrent screan of just like single words like 1:if 2:then etc
i wrote exactly as you did and yet it brings error on Pt-off ( LY(K), LX (K))(and by "L" i mean that weard symbol
+pj6444
i followed your code correctly and everything but when i start the program it shows the apples, the border, but not the snake! could you please help me??
When I try to run it, I have an ERR: INVALID DIM
when I press Goto the calculator tells me there is something wrong with the ZStrandard (which is line 2)
Do you know why that might be?
I fixed it by putting point (0,0) in the stat plot and then turning stat plot off
People are saying how hard it is to follow your instruction but if you have ever programmed anything on a calculator it is super easy.
do you want a cookie?
@@kaniyahwms yes please
Whenever I try to program it, it says ERROR: DOMAIN and it shows that I have a problem in the area it says: Pxl-Off (LY(K), LX(K))
.... I'm so confused, does anyone know why?
Same here
Does this work on the TI-84 Plus CE?
It just says SYNTAX error when I do the first test in the video. Idk how to get around it and it’s bugging me so if you know how to get past this let me know please
Do I put the 1-->D at the beginning?
I've followed everything to a T and the only difference is that my calf is silver edition and yours doesn't appear to be. Everything displays right but the snake doesn't move and pressing any key takes me out of the program. Help maybe?
Odysseusfields You have to delete the code he told you to add in the annotation in the video, and then add it after you tell the code to draw the snake. I haven't quite figured out where that is, but I will keep you updated when I do.
How do you get the CTL screen
works great
Whenever i start it up, it just has a floating plus sign. I try to move the snake but insteadthe plus sign moves(when i use arrow keys). Whenever i try to use numbers, itpulls me out of the game
SAME!
What i did to fix that problem is I deleted the stop after "If pxl-Test(Y,X)=1 and Y=/=A and X=/=B"
Run the program don't hit graph
I have Pxl-Off(LY(K),LX(K)) and when I hit the apple it gives me error invalid dimension
How do you put Lbl on Calculator? Like which Buttons?!?!?
Thank you so much! This is amazing!
I messed up doing one of the lines, how to I insert another row between two?
F5
Awesome.
U r the best