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+--- Thread: Beginner's AI (/showthread.php?tid=10240)
Beginner's AI - T.O.R.N.A.D.O - 02-20-2016
So I tried making a simple and basic AI for a character called Naruto from my mod. Here is the code:
Code:
int ego(){
int rxdist=(target.x-self.x);
int lxdist=(self.x-target.x);
int random=rand(100);
//Run in correct direction
if (abs(self.x-target.x) > 100)
{
if (self.x-target.x > 0)
{
left(1,0);
left(1,0);
}
else if (self.x-target.x < 0)
{
right(1,0);
right(1,0);
}
}
//Rasenshuriken
if ((abs(self.z-target.z) < 5) && ((self.x-target.x) < 100) && ((self.x-target.x) > 50) && self.mp > 200 && self.hp<480 && random<=5)
{
if (self.x-target.x > 0)
{
left(1,0);
if (self.facing==true)
DuJ();
}
else if (self.x-target.x < 0)
{
right(1,0);
if (self.facing==false)
DuJ();
}
}
//Shuriken
if(lxdist<=50 && self.mp>50 && random<=30)
{
DlA();
}
else if(rxdist<=50 && self.mp>50 && random<=30)
{
DrA();
}
//Rasengan
if(lxdist<=30 && self.mp>100 && random<=30)
{
DlJ();
}
else if(rxdist<=30 && self.mp>100 && random<=30)
{
DrJ();
}
//Surprise Clone
if(lxdist<10 || rxdist<10 && self.mp>100 && random<=30)
{
A(1,1);
J();
}
//Mass Clone
if(lxdist>200 || rxdist>200 && self.mp>480 && random<=5)
{
DdJ();
}
//Frog
if((lxdist<500 && lxdist>20) || (rxdist<500 && rxdist>20) && self.mp>100 && random<=10 && abs(self.z-target.z)<=10)
{
DdA();
}
return 0;
}Now the problem I am getting is - the computer spams J+J+A for no reason. I haven't put anything like that in the ego function and the basic character AI cannot be THAT retarded. So why is he behaving like that? Any thoughts?
PS: The id used here is 1.
RE: Beginner's AI - Ramond - 02-20-2016
Code:
if(lxdist<10 || rxdist<10 && self.mp>100 && random<=30)
{
A(1,1);
J();
}Most likely this causes it. It's always dangerous to use multiple conditional || and && without proper bracketing, so maybe use more brackets to specify the exact conditions.
Currently, seeing how you defined lxdist and rxdist, the following will always hold: lxdist = -rxdist
And you have following two conditions: lxdist<10, rxdist<10
But since lxdist = -rxdist:
lxdist<10, -lxdist<10
Obviously, one of both is non-positive and therefore always fulfilled, so that || doesn't seem to make much sense anyway. Except if you didn't mean to bracket (lxdist<10 || rxdist<10) like that. Perhaps you meant to use rxdist>10, or forgot to use absolute function on the dist values?
RE: Beginner's AI - A-Man - 02-20-2016
For all languages I've encountered, the precedence of `&&` is greater than `||`, so that would be parsed as
(lxdist<10) || (rxdist<10 && self.mp>100 && random<=30). What you probably want is
(lxdist<10 || rxdist<10) && self.mp>100 && random<=30
RE: Beginner's AI - T.O.R.N.A.D.O - 02-20-2016
But that doesn't really make any sense. Granted the brackets are wrong there but that is telling the computer to press J while holding A. But computer just spams J+A+A which is other way around.
RE: Beginner's AI - A-Man - 02-20-2016
The order you execute these functions doesn't matter; as all of this is happening in 1 frame. And even if it that wasn't, it also depends on when the character starts responding to inputs. Consider you let your character tap A and D at some random state: 15 frames. If the character's frame control lands on a frame with a hit_d, that will activate, even though there might be a hit_a in the next frame to come.
I am not very knowledgeable about the inner-workings of this, but the fact that you're using 'ego' might as well mean that they do click, or even release buttons from time to time. Guess what holding a button and releasing it continuously would do.
RE: Beginner's AI - T.O.R.N.A.D.O - 02-20-2016
So how do you propose to make it execute that move using AI? I thought that was the best way to execute 2 button moves like AJ, AD, etc.
RE: Beginner's AI - A-Man - 02-20-2016
I suggest you simply let the AI only press the first key when the condition is satisfied, and somewhere else in your code you do the second key click based on a check on your current frame, like so:
if (self.frame == some_frame && (lxdist<10 || rxdist<10) && self.mp>100 && random<=30)
If you need more precision (more characters have a similar move, but not different frames), I think you can go into depths by checking if there is a particular hit_j in a frame:
if (game.objects[self.num].data.frames[self.frame].hit_j == something)