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Author Topic: Image transforming  (Read 2070 times)
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Lord Wolfram
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« on: June 19, 2017, 01:37:43 PM »

So the other day I was talking with my Programming teacher and an idea came in my mind.
"Let's load image in game from the game's code."
So the idea follows - We take the image's data and transform it into HEX code. Then we write an array of each hex value for the image, then we load the image from Array into the game and we have our sprite.
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Salanewt
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« Reply #1 on: June 19, 2017, 02:11:22 PM »

Wait, so we load an image and then save the image to the game again?
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Lord Wolfram
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« Reply #2 on: June 19, 2017, 02:13:01 PM »

Wait, so we load an image and then save the image to the game again?
Idea is that we don't have to have the image, we just have the HEX data of the image in game's code
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« Reply #3 on: June 19, 2017, 02:16:48 PM »

It sounds like a cool idea, though I'm afraid I am still lost on the reason for doing this. Would you mind elaborating a bit?
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Lord Wolfram
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« Reply #4 on: June 19, 2017, 02:25:31 PM »

It sounds like a cool idea, though I'm afraid I am still lost on the reason for doing this. Would you mind elaborating a bit?
I just came up with such idea, well some engines do not compress images etc. and hackers can easier MOD the game. This way they don't, AND if they were to edit your code, they would have to recompile it, and you can add uncompleted code there, which at first does nothing but serves as the defense system of the game, and we can punish the players for hacking
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Fox
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« Reply #5 on: June 19, 2017, 02:43:19 PM »

@ 1st post:  Yep. I do believe that is the way you do it.

@ Last post: I see it more as a way for hiding information / decluttering the user experience rather than anti-hack, but okay. (Maybe anti-hack for the inexperienced, though...) Closest I can think of to anti-hacking is a server+client approach that requires an internet connection. Any sensitive data (e.g. Save data) could stay on the server. (That being the server isn't on the player's machine, but the client connects to it.) But of course... if one is going to build a server+client thing... then there's the possible issue of DDOS and such... so, eh. It's never that simple.

Anyway... the client should only send input data like mouse clicks and keyboard presses... and receive image data/audio data.... in best case circumstances... but that's probably a lot of data, though... (graphics/audio), so probably not recommended. But if it was done... I recommend a small resolution (e.g. 240x160=0x9600 pixels)that could possibly be zoomed in to full screen. (So less data is sent across the internet than otherwise.) As for music... I'd say just send the audio file over to the user... As people will probably document it anyway. And less internet traffic=better.)
@My idea:  I can see its potential for a 4-player game, maybe... but a large MMO, probably not. - In that case, image caching would be the way to go, most likely.
« Last Edit: June 19, 2017, 03:12:58 PM by Fox » Logged

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Lord Wolfram
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« Reply #6 on: June 19, 2017, 05:32:23 PM »

@ Last post: I see it more as a way for hiding information / decluttering the user experience rather than anti-hack, but okay. (Maybe anti-hack for the inexperienced, though...)

It's more of like a message, don't mess with this engine, I don't like what you're doing, I.E. Easter egg.
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« Reply #7 on: June 19, 2017, 05:43:43 PM »

Wait, so you want the potential for a hacking community dedicated to hacking the game to make it harder to hack the game? :o

Or do you mean in general, like as a security feature for other games or sites?
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« Reply #8 on: June 19, 2017, 06:50:12 PM »

A message? Might as well spell out to them.... that you are the copyright holder/etc.

But anyway... in the situation where a program is not open-sourced... data/images that are stored outside the program can still be checked against a checksum/signature type thing... if they need not be edited by a user. If editing was the main concern and not necessarily exposure/etc. But that's more me just speaking of an alternative. (That is definitely not foolproof. But then again, neither method is.)

Now I wonder if it is possible to encrypt a file using certain built-in techniques... and make it so one's own program can decrypt it... but only into RAM. (Without actually grabbing any encryption related code yourself.)
« Last Edit: June 19, 2017, 06:58:25 PM by Fox » Logged

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Remember kids! Before you go on that interview, remember to wash your hands in teawater! *Coughs on hand* (Excuse me, I just coughed up a little teawater, so they're still clean!) You wouldn't want that hiring manager to be unimpressed.

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« Reply #9 on: June 20, 2017, 03:32:04 AM »

Okay pretty nice.
But what kind of format are you going to use? I guess that would be the first step in this problem.

Now that I think about it, you might only need to specify a width for the image and then simply just load RGB values, which makes an extremely easy format.
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Cbox
January 17, 2018, 04:07:51 PM
KyleRunner: :D
January 16, 2018, 08:44:56 PM
Fox: I must say... life can be complicated..... when you have question(s) (via email) ... and it seems like they sort of get ignored. :D ; Fun, (And sometimes, a person may respond, and completely not answer the question.... so like... 3-person conversation.) Hahahaha!!
January 15, 2018, 07:26:16 PM
Fox: (path) 1 text=(address) char=(address) free=(address) ; << Well, closer to this... but yeah... even if I do choose to have defaults in the code, I could still use this method for overrides.
January 15, 2018, 07:24:28 PM
Fox: So like (path) 0 text=(address) char=(address) len=(number) ; (path) 1 free=(address) ; Or something. But that's just a quick example.
January 15, 2018, 06:59:14 PM
Fox: Hopefully. I was wanting to make it so you could put in the addresses/etc. as one of the arguments in the path. Hm?
January 15, 2018, 03:37:07 PM
KyleRunner: Nice! I hope you'll add compatibility with others games (GS1, Mario Golf and Tennis) soon.
January 14, 2018, 11:40:09 PM
Fox: Okay. Posted (in Downloads section) an initial cutdown version for now, for my text compressor. Basically to separate the code from my Editor for anyone who wants to mess with it. It only supports GS2, because I still didn't add the addresses/etc. for the other games.
January 14, 2018, 05:01:00 PM
Fox: Okay! Going to need to think how I want it to work. Initial thoughts is maybe have a number of arguments in the filepath thing. And have a number of shortcuts (files) to be used as examples. Assuming there are no problems.
January 14, 2018, 10:38:24 AM
KyleRunner: Well... I'm used to editing text ina a text editor, so... yes! Thanks in advance!
January 13, 2018, 11:38:43 PM
Fox: (Text editor = Text Document like notepad.)
January 13, 2018, 11:38:21 PM
Fox: Would you prefer during the text editing in a text editor? (Like what gstoolkit lets you do?) I could probably make a separate tool or something to compress it.
January 13, 2018, 10:10:02 PM
KyleRunner: Ok. Once I finish my Lost Age translation, I'll try a Mario Golf one. Thanks. (But I'll need help).
January 13, 2018, 10:03:17 PM
Fox: If you want to make it "permanent" (part of a hack), then you'd edit code in the ROM that writes to this location of the IDs you'd want to change. (You can find these locations by using a breakpoint debugger like SDL-H or no$gba.)
January 13, 2018, 10:00:11 PM
Fox: Reload/switch = Recommended to be done through Debug mode/warp menu, ofcourse... since doors seem to appear as if they were disabled? ; 03001238:01 and B+Start to get to warp menu.
January 13, 2018, 09:55:39 PM
Fox: @Kyle Runner = It might be, but you'd have to use the correct addresses for Mario Golf, rather than for GS2 as I have it right now. ; @raijinken = Yes. 02000454 = ID of leader. (Change this and reload/switch room you are in, enjoy.)
January 13, 2018, 02:23:29 PM
raijinken: Hey guys, is it possible to somehow change the lead character on the map? Was wondering. I remember there was a cheat to use Jenna, but what if I wanted Isaac, or Piers?
January 13, 2018, 02:10:03 PM
KyleRunner: Hey, Fox *
January 13, 2018, 02:09:37 PM
KyleRunner: Hey, is your text editor compatible with Mario Golf (GBA)?
January 11, 2018, 08:33:13 PM
Fox: But if it isn't an oversight, I still can't imagine it being that useful.
January 11, 2018, 08:28:24 PM
Fox: part, ofcourse.

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