how to make a screen full with zeros and delete them on contact with a sprite.

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Summary:

i already have the movement and sprite to go with it. for (ti-83 or ti 83-plus)

how to make a screen full with zeros and delete them on contact with a sprite.

LW tutorials 10 Sep 2021 21:34

here is the movement code and sprite i have so far:
Clrhome
4->X
4->Y
While 1
Output(Y,X,"0
getkey->A
If A=26
x-1->X

If A=24
x+1->X

If A=25
Y-1->Y

If A=34
Y+1->Y
End

Re: how to make a screen full with zeros and delete them on contact with a sprite.

CalcNerd 10 Sep 2021 23:25

Good code! I also started out using If statements to accomplish movement, and then I was introduced to piecewise expressions. I have found that they are a great way to optimize a program, and also tidy it up a bit. Let me know if you would like things explained as I would be happy to do that also!
You can also accomplish the movement by using piecewise expressions like…

X+(K=26)-(K=24->X
Y+(K=34)-(K=25->Y

and for putting it so the character can't go off-screen...

max(16,min(1,X+(K=26)-(K=24->X
max(8,min(1,Y+(K=34)-(K=25->Y

I would recommend checking out the movement page also, as it has a lot of useful information.

Re: how to make a screen full with zeros and delete them on contact with a sprite.

LW tutorials 11 Sep 2021 00:27

thanks. :)

Re: how to make a screen full with zeros and delete them on contact with a sprite.

AidanThird 21 Nov 2021 20:40

To fill the screen with zeros, you could just output them (use a for loop or something)
Unless you want to have them reappear
then I don't know

Re: how to make a screen full with zeros and delete them on contact with a sprite.

Apersoma 24 Nov 2021 16:34

You could generate all the zeroes and regenerate them for every position the sprite isn't when the cords of the sprite change.

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