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Author Topic: New to Axe.  (Read 12703 times)

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Offline Masinini

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Re: New to Axe.
« Reply #15 on: December 09, 2010, 04:53:00 pm »
Thanks! Now I get it. I had understood the use of binary in assembly a while ago, but didn't make the connection. So when he stores a hexidecimal list to a picture, and then uses X,Y,Pic1 later, it turns on the specific points at x'y to match the hexidecimal?

And did you do the hexidecimal in your head? I'm not sure how the rows each equal, 66 per say.
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Offline AngelFish

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Re: New to Axe.
« Reply #16 on: December 09, 2010, 04:57:30 pm »
Windows 7 includes a calculator that can convert Binary to Hex  :P

If you don't have that, then Wikipedia has a Binary-Hex conversion chart.

To convert the binary to Hex, all I did was take each sequence of four bits and replace it with the corresponding Hex number. For example, the top row was 0110 0110. Looking at the chart, this converts to the Hex numbers 6 and 6, which I grouped together to form a byte.

So, 66 99 99 66 66 99 99 66 is the image.

Also, yes, using Pt-on OR's each of the points already in the buffer. If either the bit in the picture or the bit in the buffer are on, the screen will turn that pixel on when Dispgraph is used. Pt-Change XOR's the Sprite with the buffer.
« Last Edit: December 09, 2010, 05:00:01 pm by Qwerty.55 »
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Offline yunhua98

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Re: New to Axe.
« Reply #17 on: December 09, 2010, 05:28:09 pm »
You can use Hexpic, included in Axe Parser Tools folder, and draw 8x8 sprites, then it will convert the sprite to Hex.  or alternativly you can use ione of the many sprite editors made by our community members.  ;)
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Offline Masinini

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Re: New to Axe.
« Reply #18 on: December 09, 2010, 05:53:17 pm »
Thanks for your help all. All I need to do now is experiment and practice, making sure I get the codes down.
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Offline Munchor

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Re: New to Axe.
« Reply #19 on: December 09, 2010, 06:30:18 pm »
Quote from: Masinini on December 09, 2010, 05:53:17 pm
Thanks for your help all. All I need to do now is experiment and practice, making sure I get the codes down.

Check the open source programs in Omnimaga, that's how I learnt.

Also, Axe's examples are pretty good to learn.
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Offline Masinini

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Re: New to Axe.
« Reply #20 on: December 09, 2010, 06:51:11 pm »
New Question.

So, If I wanted to draw an X, I could make an 8x8 sprite like

01000010
01000010
00100100
00011000
00100100
01000010
01000010
00000000   But say i wanted to make a box that could only fit in an 24x6 spreite sized box. Would I have to use 3 8x8 sprites and just leave off part?

That X in hexadecimal is 42, 42, 24, 18, 24, 42, 42, 00
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Offline squidgetx

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Re: New to Axe.
« Reply #21 on: December 09, 2010, 08:14:25 pm »
Yeah, you could either use 3 8x8 sprites or the bitmap command. But the bitmap command is slow and rather confusing, so you're probably better off with 3 8x8 sprites that have 2 blank columns at the end
« Last Edit: December 09, 2010, 08:18:09 pm by squidgetx »
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Offline AngelFish

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Re: New to Axe.
« Reply #22 on: December 09, 2010, 08:17:28 pm »
Quote from: Masinini on December 09, 2010, 06:51:11 pm
New Question.

So, If I wanted to draw an X, I could make an 8x8 sprite like

01000010
01000010
00100100
00011000
00100100
01000010
01000010
00000000   But say i wanted to make a box that could only fit in an 24x6 spreite sized box. Would I have to use 3 8x8 sprites and just leave off part?

That X in hexadecimal is 42, 42, 24, 18, 24, 42, 42, 00

You can't leave off part. You have to designate the full data for Pt-On, I believe. You can use the Bitmap command by doing

Code: [Select]
Data(rows,columns)->Pic1
[Hex]
...
Bitmap(X,Y,Pic1
 The problem is that Bitmap takes approximately 15 times longer than Pt-on.
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Offline Masinini

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Re: New to Axe.
« Reply #23 on: December 09, 2010, 08:19:22 pm »
When I say leave off part, i mean just make the Hexidecimal code for that area 00.
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Offline AngelFish

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Re: New to Axe.
« Reply #24 on: December 09, 2010, 08:20:08 pm »
Then it'll work. Setting blank bytes to 00 simply doesn't draw them.
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Offline Deep Toaster

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Re: New to Axe.
« Reply #25 on: December 09, 2010, 08:20:23 pm »
^ What Qwerty said. Plus, storing six bits (pixels) per row would get really nasty to deal with because all of it's in bytes of 8.
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Offline DJ Omnimaga

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Re: New to Axe.
« Reply #26 on: December 09, 2010, 08:23:19 pm »
Didn't Bitmap use the Overwrite logic, though? (erasing everything behind)
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Offline AngelFish

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Re: New to Axe.
« Reply #27 on: December 09, 2010, 08:24:47 pm »
It does, but then again so does Pt-Off
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Offline DJ Omnimaga

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Re: New to Axe.
« Reply #28 on: December 10, 2010, 02:27:25 am »
Ok, because you said the following:
Quote from: Qwerty.55 on December 09, 2010, 08:20:08 pm
Then it'll work. Setting blank bytes to 00 simply doesn't draw them.
It should actually draw them, right? (in white)
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Offline AngelFish

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Re: New to Axe.
« Reply #29 on: December 10, 2010, 02:28:40 am »
No, 00 with the Pt-On command is transparent because the routine uses OR logic to map the pixels.
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