Talk:Geomancy

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General Questions

What is the difference between this and Watermelon? I first think this is Go-to surfing, but it is true surfing anyway. » Nat | Talk » 13:08, 19 June 2009 (UTC)

This is the next iteration of Watermelon - I conquered kid.Toa (finally!) and fixed some bugs in my distancing that allowed me to get rid of some rambot special-case code, improving my survival against rambots to nearly 100%. The main reason for the rerelease was twofold: I wanted a more serious name, and I wanted an excuse to rip out all the old bits of commented-out code I had stopped using a while ago. Answering your other concern: Geomancy does use true surfing, determining the best direction to orbit each turn. Soon I plan to make a change to the movement that will increase the resemblance to a go-to bot somewhat. If my best location for the upcoming wave is very close to where I am now, I'll delay movement until the last moment, giving the opponent less information about my intentions. -- Synapse 22:59, 19 June 2009 (UTC)

Debug Graphics

Those have to be the nicest wave graphics I have ever seen! --Darkcanuck 18:03, 19 June 2009 (UTC)

Glad you like them! It's important to me that the graphics be readable enough that even at 30tps I can get a feel for why the bot is making the movement choices it does. I did recently fix a positioning issue with the graphics that caused each circle to be off-center - that will fix the varying offset between the wave and the bullet you can see in the version 1 screenshot. -- Synapse 22:59, 19 June 2009 (UTC)

I have to figure how you made those nice circles. Mine look like they were drawn on an Apple ][... --Darkcanuck 03:29, 20 June 2009 (UTC)

If you are talking about the circle of the bins. I think it depend on the system. Sometimes I see the anti-aliased circle but sometimes it doesn't. Very strange. Anyway, I think using g.draw(new Ellipse2D.Double(...)) or use AffineTransform on Point2D is way more beautiful than g.drawOval(); » Nat | Talk » 04:12, 20 June 2009 (UTC)

Haha... just take a look at the robocode preferences Darkcanuck... there's a little group of settings that makes all debugging graphics look much prettier... Go to "Rendering Options", and turn on your anti-aliasing, or just hit the big pretty "Quality" button in the middle of the tab ;) --Rednaxela 05:09, 20 June 2009 (UTC)

(slaps forehead) I always set mine up for "speed", never tried the other settings... --Darkcanuck 07:40, 20 June 2009 (UTC)

Memory Usage

My rumble client just died due to java.lang.OutOfMemoryError while running synapse.Geomancy 1 vs nat.BlackHole 0.1.11. Yours is the newer bot so I thought you might want to know in case there's a memory usage issue? My client uses 512M of heap space. I'll let you know if it happens again. --Darkcanuck 13:48, 20 June 2009 (UTC)

Nope, BlackHole 0.1.11 is really a memory eater. BlackHole 0.1.11 right after finish the development consumes around 600GB. It just, too much bins to surf and result in really bad movement though. I may remove this robot from since since it worse than OcnirpSNG ;) » Nat | Talk » 14:08, 20 June 2009 (UTC)

600GB? ARe you sure you don't mean 600MB? If it's 600GB... I'd really want your computer ;P --Rednaxela 15:54, 20 June 2009 (UTC)

I really mean 600GB. When I finished the development, I tried to run it and I can't make it run. I even used the Eclipse debugger and now both Robocode and Eclipse froze so I decided to calculate the memory usage. The result is 600GB, which make me understood instantly why it doesn't run. So I decide to comment out most buffer and leave only light one, and it worked. But still I couldn't run it together under -Xmx512M. » Nat | Talk » 16:05, 20 June 2009 (UTC)

I ran Geomancy vs itself, and Java used 50mb of memory. Then I ran BlackHole vs itself, and one of them crashed due to exceeding the memory allotment of 512mb. -- Synapse 16:42, 20 June 2009 (UTC)

A memory singularity? :) --Darkcanuck 17:36, 20 June 2009 (UTC)