Cheat Engine

407 · Posted: Tue May 24, 2011 3:28 am Post subject: [AutoIT] Monster Detection

Ok, I'm making a bot and I'm wondering which method would be better for monster targeting detection. (Or if someone could suggest an easier and better method).

I was thinking, I could use color/pixel recognition, and loop around/run around the map until the color is found, but that would be really buggy at map changes. My second method was to just use timers and calculate total MP usage and cooldown, and have an auto-pot type thing. Another method would be (The monster's image is displayed around a colored box on top of the screen) to detect the monster's image on the top of the screen and use that as a basis as to keep attacking or to move on.

Some other notes that may be helpful:
-Tab targets the closest monster
-A sound is played when you target a monster
-I have/can obtain the monster's pointer address
-Monster's names are color coded by aggression.

HomerSexual · Posted: Tue May 24, 2011 11:55 am Post subject:

I can't give too much input, but i'll give you some food for thought to steer you away from pixel detection. Number one, it's slow, very slow. It wouldn't be feasible to be running in real time and constantly doing monster detection via pixels.

Also, many times pixels / groups of pixels will have no determinable boundary algorithmically. The images just appear to have boundaries because of the human eye and brain, but algorithms are not at that level yet.

hcavolsdsadgadsg · Posted: Tue May 24, 2011 3:12 pm Post subject:

Reading pixels should be easy real time. If you have access to the renderer you can just directly read the backbuffer, otherwise you can just blit it yourself. Shouldn't be slow at all.

But what's wrong with just finding the monster / entity array and just pulling info from that?

atom0s · Posted: Tue May 24, 2011 4:09 pm Post subject:

hcavolsdsadgadsg · Posted: Tue May 24, 2011 4:49 pm Post subject:

It's expensive and you cause a stall but I don't think it should be particularly horrible in a lightweight game. I've tried accessing it before in a toy project and don't remember particularly devastating results.

I figured that there was a way to do asynchronous copies and apparently the answer in DX9 is GetRenderTargetData() so that should be better! Don't know what the DX10+ equivalent is and in OGL I guess Framebuffer Objects are the way to go.