Category: programming

I found a bug today, after it was reported by a few GSB modders. I had done some cunning optimisation for my file handling months ago, where my Ini File loader code kept a file open during it’s lifetime in case another section from the same file got read soon afterwards.

It turns out that the C Runtime barfs if you try to open more than 512 files, under all circumstances. This is fine until you mod an extra 300 modules into GSB, then it just dies. So… problem fixed. Ideally my ini file code should be able to handle this better entirely, but thats for another time,

The second ‘bug’ is still underway, (point defence modules appear to not respond to damage, but in the debugger, they clearly do…) but its pointed me to a third one, that was also reported…

When a point defence beam shoots a missile, it may not work. The missile may be unharmed. In this instance the missile is still ‘claimed’ by the PD module until it dies, so no other PD module will have a second go at it.

I could fix this trivially, it’s just an oversight*. But would that make PD too powerful? It’s already prety good, albeit some of it’s thunder has been stolen by the Swarms Smart Bomb. It’s only going to kick in where you have a few incoming missiles and multiple PD modules. But that second chance to fire could save you from that vital pesky megaton missile, or Order nuclear bomb…

Thoughts?

*easily explained though. The neutron power surge generated by the point defence beam temporarily blinds the targeting mechanism of other PD modules from homing in on the positronic flux decoupler on the same missiles.

Edit: actually the PD bug is now fixed, making them fire much slower as a result, so I’ll fix the multiple-attempts  bug to compensate. it also turns out that the fire-Interval for guidance scramblers is misleading and not applicable, which explains its strangely high effectiveness, so that will be nerfed slightly too…

Something I got coded today on the campaign game is purely visual fluff. I have a map with different planets scattered over it, and they are linekd by wormholes that only connect certain pairs of planets, so you can’t just hop all over the place.

To make it clear that those wormhoels are, in fact, wormholes, I’ve added a bunch of ships flying back and forth along their length. The impression I’m after is similar to a few scenes from Revenge Of the Sith, where you see obvious ‘space higheways’ above coruscant with lines of ships heading back and forth. I loved that :D.

Obviously, for the purposes of the campaign game, they are implied to be personal ships or merchant ships. The space navies are your department, these ships are just background fluff.

It took me about an hour to two hours to get it right. Just drawing a bunch of sprites going between two points is easy, but they had to work within the zooming and panning interface, and also have to scale with processor speed for smooth movement. Then they need variations in speed, and have different source images (in a texture atlas). Also, they need to fade out at extreme low zooms, so you don’t waste time drawing stuff that’s tiny. lastly, they need to be batched together as an optimisation so that there aren’t a bunch of texture swaps. It’s all those fiddly bits that take the time. Plus I need probably another 30 mins to put together decent tiny ship sprites for use as final graphics. Should be easy and fun :D

In other news, Democracy 2 is still just TEN DOLLARS, because due to pretty unusual circumstances, the UK STILL has no government, and I proudly boasted it would be 50% off until a prime minister met the Queen.

bah.

BTW, the competition to win that spaceship runs out tonight. I’ll pick a winner tomorrow, so enter now, if you haven’t already done so.

I’m afraid so:

I’ve added filtering by module type too, with the pie charts that show the damage done. This isn’t also filterable by ship, so it isn’t totally uber, but sod it, this is a game, not excel, it has to end somewhere :D

What this new view lets you do, is (for example) select just your frigate plasma torpedoes and see that actually 95% of their shots missed, whereas only 35% of the cruisers torps missed. That might be a good thing to know…

Hopefully tomorrow I can spend a lot of time tweaking the UI for this, and testing it extensively. At some point I need to declare the stats upgrade done, so I can concentrate on play balancing for a few days. Then after that it’s back to the long discussed and hugely involved online thingy.

Today I didn’t write a single line of  C++, but did code a lot of php, which is the language I use for the online challenge management stuff in Gratuitous Space Battles.

On thursday I spent a lot of time blasting out the music from Star Trek : First Contact while I scrubbed out my chalk board and drew my vast plans for the future of GSB, or at least, the next DLC/expansion thing. After a lot of hand waving, I’m currently planning on a cunning meta-game style campaign that slots into some of the existing challenge data. It’s going to work a bit like spore, in that it becomes ‘massively singleplayer’, with other peoples content (in this case fleets) appearing in your game.

So far, so easy. That’s not a problem. The tricky bit turns out to be that although I let people mod the game (and that will continue), I can’t have a modded fleet turn up in someone elses game, because at worst, it could crash thinking “cannot find ‘bobsZapGun’ module…”

The solution, (which doesnt check for data changes as such, but does check for simple additions), is to write code which verifies that a players fleet only uses content that exists in the main game. To do that, php code was needed to crack open the binary challenge data and go through each ship hull and module name and check they really exist…

and to get THAT to work, I needed php code that would analyse all the data in the game and create a database of all the ‘valid’ entries, so that it can compare one with the other. That way if I do some module changes or new add-ons, I can just run some php and have the ‘valid data’ table automatically updated.

This is a lot of work in order to just get something totally under the hood and invisible working, which is code to ensure no modded content ends up in any one elses campaign, causing a crash. There is a ton of other work required. The good news is that a lot of this same code might be possibly leveraged at a later date to scan the high scores for modded content (and reject it) and could even remove the need to tag challenges with the add on packs manually as players do now. All fun and games….

In other news I just did a BLIND taste challenge and I *can* tell the difference between cadburys and morrisons chocolate buttons. (Cadburys taste smoother).