Friday Facts #51 - First MP Game

[slpwnd]

Area 51? NO! Friday Facts 51: http://www.factorio.com/blog/post/fff-51

[SuperSandro2000]

Wish: I like the tank next week.

[-root]

Progress on MP sounds sick!

[jeroon]

Wish: http://www.twitch.tv/directory/game/Factorio for live MP testing, hosted by slpwnd and kovarex . Not Cube, he and his sockets keep ruining the game for everyone

[FishSandwich]

It would be nice to see some MP. Either on twitch or YouTube.

[Xterminator]

Agreed. I think a demonstration is in order.

[Mur]

Our efforts have culminated yesterday when me and Kovarex had a regular half an hour LAN game. Until now it was all about tests and 20 seconds lasting mini attempts. This was actually the very first real game we tried.

[Apocalypse]

shouting at each other over the room

oh... i wish you had this on video... btw: /vote 4 VLog! ;P

[The Colonist]

You've made my day

[nika135]

Wish: I like the tank next week.

Qartveli xaar?

[Phillip_Lynx]

Give us the MP ... !!!!!

Bugs are to find and squashed!!!!

Please .....

[Calico]

ah, my weekly factorio fix. Very nice progress. A video would be nice (nothing special, like 5mins with a bit of commentary maybe?).

Keep up the good work. Fingers crossed that 10.10 will be stable and we can move on.

[lost57]

It would be nice to see some MP. Either on twitch or YouTube.

i agree, just a taste

[OBAMA MCLAMA]

A taste? like a 5 frame .gif ? lol.

[Alfdaur]

The tank looks great! It's nice to hear that the multiplayer is making progress.

[nowiz]

I really look forward to testing multiplayer.

I have done some multiplayer game programming myself using a deterministic game world and lock step as a method to keep games in sync. This was a project I did when I was studying for my degree, so no real game came out of it, but I learned a lot about the concepts. Do you use floating-point math in the game world? If so, I am curious about how you handle intermediate floating-point precision in C++ across multiple platforms? Like what is described here: http://randomascii.wordpress.com/2013/0 ... terminism/

[kovarex]

I really look forward to testing multiplayer.

I have done some multiplayer game programming myself using a deterministic game world and lock step as a method to keep games in sync. This was a project I did when I was studying for my degree, so no real game came out of it, but I learned a lot about the concepts. Do you use floating-point math in the game world? If so, I am curious about how you handle intermediate floating-point precision in C++ across multiple platforms? Like what is described here: http://randomascii.wordpress.com/2013/0 ... terminism/

Yes, we use floating point math A LOT.
Well, I have opened this article before ... and similar ones as well. So yes, I'm afraid of problems but I hope we will be able to solve those eventually.

I'v read the article again, and some of the problems might be solved already.

• We don't use fp fast, but fp strict
• We have our custom sin/cos/tan methods.
• We try to avoid cases where the order of computation would be unclear
• We are prepared to rewrite some of the calculations to asm if needed ...

[nowiz]

Thanks for the answer. As I said I really look forward to multiplayer, and I'm glad you're working hard to get this implemented. Keep up the good work!

Quick edit: If you need to go the asm-route: Good luck!

[paul42]

chiming in as well, asking for multiplayer as soon as possible that being said I totally understand if you want to wait to push it to the unstable branch. Is there an IRC chat for when we eventually want to play multiplayer w/ each other?

Thanks in advance,
Paul42

[Drury]

on the image

See, this is how I know you weren't taught by the same English teacher as me.

INNNN THE PICTURE MY DEAR, INNNN THE PICTURE