Author Topic: Checking location in Tilemap and changing GDB value. (Read 11208 times)

XVicarious · « **on:** March 08, 2011, 11:12:48 pm »

This is old, I figured this out.

Spoiler For Spoiler:

Now that I finished that... How would I check what tile I am on and change tiles around it? Okay I have
X = tile 0
Y = tile 1
x = tile 0 with cursor
XXXXX
XYYYX
XYxYX
XYYYX

if I second x, i want to check the values in a square around it, and up them by one. like 00 -> 01 and 01 -> 02 and 02 -> 00. But the thing is, each tile will have a different way they change the surrounding tiles. If I could figure out one, i could figure out the rest. I used Nemo's tilemapping example (http://ourl.ca/7512/130274) and made a few changes so that it did a 5x4 grid.

Deep Toaster · « **Reply #1 on:** March 08, 2011, 11:19:07 pm »

Quote from: jkag on March 08, 2011, 11:12:48 pm

So...

I would like to test if my cursor (x,y) is on my sprite, no variables right now and its always at the same position. I would like it to change Pic pointers. From Say Pic0R to Pic0B, but the catch is that it does it to adjacent tiles as well.. I've even kind of lost myself here...

You can't really test if you're on a sprite directly (except with a mass of pxl-Test('s), but you can store the X- and Y-positions of the object, then test to see if it's within 8 of the X- and Y-value of the cursor.

AngelFish · « **Reply #2 on:** March 08, 2011, 11:26:53 pm »

I'm confused as to how you have red, blue, or green anything on a monochrome screen

XVicarious · « **Reply #3 on:** March 08, 2011, 11:32:18 pm »

Oh, well I'm remaking a game. It was easier for me to think of it that way lol. Okay, I figured that. I suppose i could figure which one i am on because X will equal 8*column and same with Y... well row. But how about changing the "color" of them, or do I have a mass of different states of them?

Deep Toaster · « **Reply #4 on:** March 08, 2011, 11:35:25 pm »

Quote from: jkag on March 08, 2011, 11:32:18 pm

Oh, well I'm remaking a game. It was easier for me to think of it that way lol. Okay, I figured that. I suppose i could figure which one i am on because X will equal 8*column and same with Y... well row. But how about changing the "color" of them, or do I have a mass of different states of them?

If everything's confined to a grid, that's a great idea. Tilemaps make things a lot easier

XVicarious · « **Reply #5 on:** March 08, 2011, 11:48:04 pm »

No, no tilemap. Just drew all... 20 sprites lol. But reading Cmpwn's tutorial on Tilemapping right now. I only have 3 sprites so...

jnesselr · « **Reply #6 on:** March 09, 2011, 07:32:10 am »

It would be easiest to have the tilemap somewhere in ram, and have values that correspond to the sprites (With only 3 sprites, you can fill an entire 12*8 sprite screen in only 24 bytes @ 2 bits per tile), and change them in the stored data, and redraw when needed.

XVicarious · « **Reply #7 on:** March 09, 2011, 03:08:38 pm »

Okay... So I followed Cmpwn's tutorial... And got some strange results? Can this maybe because 1) How my sprites are formatted in "Pic0T" or 2) Just the version of Axe parser?

I'm just totally lost lol... My grid is a 5x4 grid, only 20 sprites on the screen at a time (not including the title i did as a sprite, which is 5 sprites).

DJ Omnimaga · « **Reply #8 on:** March 09, 2011, 03:20:53 pm »

Isn't SirCmpwn tutorial for Axe 0.07 or something? I am not convinced it is still valid for current versions of Axe anymore.

XVicarious · « **Reply #9 on:** March 09, 2011, 03:22:18 pm »

Oh no lol. How shall I learn now!? lol.

DJ Omnimaga · « **Reply #10 on:** March 09, 2011, 03:23:21 pm »

I don't know. Hopefully someone can help you soon. I think it would be best to rename the topic title to reflect it is now about tilemapping, check older topics about tilemapping and start a new one if you can't find anything, though.

XVicarious · « **Reply #11 on:** March 09, 2011, 03:28:35 pm »

I found a simple little thing from nemo on how to do it, gonna try it now. I'm gonna rename the topic anyhow because the title is confusing lol

DJ Omnimaga · « **Reply #12 on:** March 09, 2011, 03:29:28 pm »

Ok good to hear. Good luck!

XVicarious · « **Reply #13 on:** March 09, 2011, 03:36:19 pm »

Yep, It works but it will not work on a 5x4 set, and returns crap on the 5th column. It will do a 4x5 though, but that doesn't work for my game

edit: Fixed it

XVicarious · « **Reply #14 on:** March 09, 2011, 04:04:18 pm »

Updated

sorry for double post :O

Author Topic: Checking location in Tilemap and changing GDB value. (Read 11208 times)

XVicarious

Checking location in Tilemap and changing GDB value.

Deep Toaster

Re: Testing Location and a Menu (that also includes the first thing)

AngelFish

Re: Testing Location and a Menu (that also includes the first thing)

XVicarious

Re: Testing Location and a Menu (that also includes the first thing)

Deep Toaster

Re: Testing Location and a Menu (that also includes the first thing)

XVicarious

Re: Testing Location and a Menu (that also includes the first thing)

jnesselr

Re: Testing Location and a Menu (that also includes the first thing)

XVicarious

Re: Testing Location and a Menu (that also includes the first thing)

DJ Omnimaga

Re: Testing Location and a Menu (that also includes the first thing)

XVicarious

Re: Testing Location and a Menu (that also includes the first thing)

DJ Omnimaga

Re: Testing Location and a Menu (that also includes the first thing)

XVicarious

Re: Testing Location and a Menu (that also includes the first thing)

DJ Omnimaga

Re: Testing Location and a Menu (that also includes the first thing)

XVicarious

Re: Testing Location and a Menu (that also includes the first thing)

XVicarious

Re: Checking location in Tilemap and changing GDB value.