Doom3world

Hey everyone. I apologize if i have posted in the wrong forum/subforum, i am new here as you can see. Now, i am a novice modder-nothing serious. However, i want to make the spread of weapons increase with every shot fired. Is that possible?

Please take into account that i am a complete newbie when it comes to scripting.
Could anyone tell me how this could be done, presented with examples? I would really appreciate the help.
Thanks for reading this, and thanks even more if you actually help me do this

EDIT: Guys, I think i've figured at least one half of this out. Now my pistol's recoil gets worse when im firing, now i only need to make it stop when im not firing



I just had to put this code right after playAnim in the Fire state.
Now my idea for making the spread lower when you don't fire is... While the weapon is in the IDLE state, wait 0.3 seconds and lower spread by 1. If spread is 1, make spread 1 again and again. I think this should work

EDIT2: It did work

Cool. Can you post the second part of the code? Thanks.

while spread is bigger than 1 substract 1 frome spread... no need to keep checking it.

If it doesn't keep checking, then how else is the interval for spread reduction defined? You don't necessarily want the spread to reset back to 0 instantaneously. What's more you'd probably want to ensure that the interval at which spread is reduced is at least slightly slower than the weapon's fire rate. Otherwise the spread could start resetting before the next shot is fired. The rate of reduction could potentially need to be pretty specific.

That's why I'm curious to see a working syntax for this (besides the fact that I'm a code n00b).

EDIT: Nevermind, I found his code here: viewtopic.php?t=25578

because it only checks it and those the operations if the situation makes the conditional in the "while" true, once the situation makes the condition of the while fail it doesn't keep working on it. so it's it deactivates the operations inside the while instantly

while ( spread >= 2 ){
spread = spread - 1
}

(in every frame in the idle, reload or other situations where the pistol it's not shooting)

if spread it's way to quickly to get to the value you want, you could use an intermediate value instead of spread.

and once you shoot get a spread value based on how much this intermediate value is.

while ( z >= 1 ){
z = z - 1
}

like, every time you shoot: z = z + 100

and before you shoot you could check:

if (z == 0) {
spread = 1
}else if (z >= 10 && z < 20) {
spread = 2
}else if (z >= 20 && z < 30) {
spread = 3
}else{
spread = 4
}

or some kind of mathematical algorithm where you get spread out of z way more quickly without conditionals.

----------------------------------------

you could do a clever use of different chekings throught the animation system, and keep defining a float variable that once you get to shooting changes the spread, or you could use a thread just to check this.

But I think the "thread" way is a bad idea because way too many threads for doom 3 gets you to bad perform in the engine

Ok, so I followed MadHacker's code last night and got it to work without a hitch. So I'm guessing the interval at which the idle state runs the -1 process is every frame then? So is that 60 times per second, or 30 times per second?

Either way it explains why you need a pretty low value to create a visibly gradual reduction in spread.

Thanks for the help.

You could use gametime instead of framerate to regulate the spread decrease, which would give you more control.

Here's one way, using pistol.script as example.

First, ad a new float 'firetime' to the weapon object:

In weapon_pistol::Fire(), add these lines after the playAnim:


continued next post...

...and finally in weapon_pistol::Idle(), add these lines at the end of the while(1) loop, just before waitFrame();


I had to split the post in two, as I was getting an 'invalid post' error...

Thanks for the help. I'm still fine-tuning the values and it seems like a lot of trial and error getting the exact behavior desired.

All right, sorry for not replying to anyone, i was absent from these forums. While i do not have the code in front of me, let me explain this technique in full detail(the way i did it, that is!).
As i've posted already, in the fire state i use something like this:
If spread < (maximum spread here)
spread = spread + 1.
This increases it by 1 or the value you've set each time the Fire state is called. Holding down the button calls it multiple times, so this will work.
In the Idle state, my code was something like this:
If spread > (minimum spread here)
spread = spread-(very low value, because it will perform this operation very often)
if spread < (minimum spread here)
spread = (minimum spread here)

In the Idle state, when it calls the Reload state, i just set it to 0 because i can not think of a way to gradually decrease it while reloading(i've heard threading commands in weapon scripts can ruin things). It automatically sets it to the minimum spread after reloading of course.
I hope that helps.