RT VOPE

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RT VOPE

builderboy 21 Jun 2008 17:35

Real Time Variable Output Projectile Emitter

Basically its a gun that you can shoot, and each bullet is added to the screen (Kinda like phoinix) . I guess it would have to use some sort of list or other cumulative data structure. And then the program would simulate every projectile every frame, no mater the number of projectiles. Hence the name, variable output projectile emitter.

Real time just means that the algorithm is executed by looping it over and over again. So it could be used as a subprogram for another game. Each execution would advance every projectile on the screen 1 pxl.

I know basic will not be able to do this very effectively, but any ideas for implementation?

Re: RT VOPE

darkstone knight 21 Jun 2008 17:48

you use four lists

_LX, X position
_LY, Y position
_LXV, X vecolity (or however u spell it…)
_LYV, X vecolity

you draw the graphis like this

for(a,1,dim(LX
pt-on(_LX(A), _LY(A),2
end

you update the X position like this _LX+_LXV
you update the Y vecolity like this _LYV-.1
you update the Y posion like this _LY+_LYV

of course, you need the make sure the dim of all lists is the same

dim(_LX .> dim(_LY and so on…

the problem is erasing elements from the list, you can do it whit seq(, but its verry slow

hope this helps

Re: RT VOPE

builderboy 21 Jun 2008 20:50

Yeah, that would work. I was also thinking about a type of VOPE where it only simulates 1 projectile each frame, and cycle throughout all the projectiles available. That way it wouldn't slow the game down, just the bullets.

You would have to have some sort of counter where it told the engine which bullet to simulate each frame, and increment it every time you went around.

Re: RT VOPE

burr 21 Jun 2008 21:24

Out of curiosity, have you tried playing the darts game?

Re: RT VOPE

builderboy 22 Jun 2008 16:04

Wow, that is a challenging game, and very well optimized as well.
Out of curiosity, how does it relate to a VOPE?
cause all the elements were pre defined.

Re: RT VOPE

burr 22 Jun 2008 16:25

The reason I asked is because you can use the darts game with its pre-defined objects as a gauge to see how practical a real-time game would be. Did the darts game run pretty fast on your calculator?

Re: RT VOPE

builderboy 22 Jun 2008 16:43

true, an actual vope is really only possible in assembly (Phoenix) . I was just wondering about the coding to see how it might be done, and the best techniques and such.

Darts ran reasonably fast, but not terribly fast. I'm guessing the impossibleness would get easier on a ti 83.