Scratch

hmmmmm, well, first of all, don't call them A.I.s.  not unless you want to get ridiculed by hardcore programmers.  an aritficial intelligence is impossible to create because you would need an infinate number of "if" clauses to denote all the possible actions.

but beyond that, the best (and only) way is to make a series of extremely specific "if" statements that define what the CPU player should do in every possible scenario.  For instance, you could make it distance based.  If the sprite is far away, program it to walk closer.  if it is within a certain range, you could make it use a certain attack.  the more of these statements you have, the more advanced your CPU will be.

and dont worry if you get stuck.  these things are so difficult to make that I usually just don't even bother.  usually the result is not worth the work.  but dont' let that discourage you from trying.

AmoebaMan wrote:

hmmmmm, well, first of all, don't call them A.I.s.  not unless you want to get ridiculed by hardcore programmers.  an aritficial intelligence is impossible to create because you would need an infinate number of "if" clauses to denote all the possible actions.

but beyond that, the best (and only) way is to make a series of extremely specific "if" statements that define what the CPU player should do in every possible scenario.  For instance, you could make it distance based.  If the sprite is far away, program it to walk closer.  if it is within a certain range, you could make it use a certain attack.  the more of these statements you have, the more advanced your CPU will be.

and dont worry if you get stuck.  these things are so difficult to make that I usually just don't even bother.  usually the result is not worth the work.  but dont' let that discourage you from trying.

All AI means is artificial intelligence. That doesn't mean it has to be very intelligent at all, it just has to react to the situation
(At least to my understanding of it)

AmoebaMan wrote:

juststickman wrote:

AmoebaMan wrote:

hmmmmm, well, first of all, don't call them A.I.s.  not unless you want to get ridiculed by hardcore programmers.  an aritficial intelligence is impossible to create because you would need an infinate number of "if" clauses to denote all the possible actions..

Not infinite, in a simple game there'd only be around 50 possible scenarios (unless you're going with pixel-perfect AI).

Well, if you want them to be like the player, make them do the same things, but instead of if a key is pressed, make it an if (something), for example if the distance to player is less than 30 attack.

an AI means an aritficial intelligence.  that means a computer that can think like a human.  bottom line: impossible

demosthenes wrote:

All AI means is artificial intelligence. That doesn't mean it has to be very intelligent at all, it just has to react to the situation
(At least to my understanding of it)

as above: the concept of artificial intelligence refers to a computer with the capabilities of a human.  and also, why call it an intelligence if it isn't intelligent?  the proper term is CPU (central processing unit) behavioral replicant.

Ais don't have to duplicate the intelligence of a human. All they have to do is to react  to some to some degree to situations. Even if they're really dumb they fall under the umbrella of AI.


And to respond to your comment about human-like AI being "impossible" I disagree. It is certainly possible. How hard can it be to duplicate a human brain, or even exceed it?

Last edited by demosthenes (2010-04-28 15:27:08)

make a variable that changes to random stuff and everytime it get's to a certain number have it do something

But I've already set up the life system, but when I attack it just takes away my life not the opponents.

Oh and remember, I have a ton of different punching and kicking costumes each roughly 2 and 3 KB but a lot can cause a lot. A muted project without any sound can still be over 2MB. Dont cross the uploading limit.

http://scratch.mit.edu/forums/viewtopic.php?pid=15790#p15790

thanks a lot you guys

AmoebaMan wrote:

hmmmmm, well, first of all, don't call them A.I.s.  not unless you want to get ridiculed by hardcore programmers.  an aritficial intelligence is impossible to create because you would need an infinate number of "if" clauses to denote all the possible actions.

but beyond that, the best (and only) way is to make a series of extremely specific "if" statements that define what the CPU player should do in every possible scenario.  For instance, you could make it distance based.  If the sprite is far away, program it to walk closer.  if it is within a certain range, you could make it use a certain attack.  the more of these statements you have, the more advanced your CPU will be.

and dont worry if you get stuck.  these things are so difficult to make that I usually just don't even bother.  usually the result is not worth the work.  but dont' let that discourage you from trying.

Actually, because atoms can be in superposition states (all possible states at once) a quantum computer can make true AI.  But you are right.  Do not say AI because it will get you into a conversation with all those hardcore gamers who make games for a living with flash and java etc.

Ok, noaw im really confused about how to make a stick fighting game. I tried something on the lines of  <if><touching[ ssprite 2
                      <change{ enemy hp }by( -1

but that kinda didnt work cuz it was too easy so how do you make it that when punched it takes away all teh health??

Last edited by Niewiem33 (2010-05-25 16:05:32)

I tend to use a seperate variable which reports wheather the player is attacking, or the ennemy is attacking, thus if if you set attacking to true, and he touches the enemy, it lowers the enemys health, and vice versa for the enemy.

demosthenes wrote:

AmoebaMan wrote:

juststickman wrote:

Not infinite, in a simple game there'd only be around 50 possible scenarios (unless you're going with pixel-perfect AI).

Well, if you want them to be like the player, make them do the same things, but instead of if a key is pressed, make it an if (something), for example if the distance to player is less than 30 attack.

an AI means an aritficial intelligence.  that means a computer that can think like a human.  bottom line: impossible

demosthenes wrote:

All AI means is artificial intelligence. That doesn't mean it has to be very intelligent at all, it just has to react to the situation
(At least to my understanding of it)

as above: the concept of artificial intelligence refers to a computer with the capabilities of a human.  and also, why call it an intelligence if it isn't intelligent?  the proper term is CPU (central processing unit) behavioral replicant.

Ais don't have to duplicate the intelligence of a human. All they have to do is to react  to some to some degree to situations. Even if they're really dumb they fall under the umbrella of AI.


And to respond to your comment about human-like AI being "impossible" I disagree. It is certainly possible. How hard can it be to duplicate a human brain, or even exceed it?

Not sure if this is necessary or not, but humans learn based on trial and error, and from what they're told. If you were to make a list of, say "BAD" and "GOOD" to where the A.I. would go towards the GOOD and avoid the BAD. Once they come in contact with an object, they would make a judgement, and it may take a longer or shorter time for the judgement to be made based on the effect of it. Say you learn to ride a bike. You have fun, right? But you fall off one day. Oh noes. But you're still gonna do it, right? The fun overrides the pain, therefore a Bike would be on your "GOOD" list.

Therefore, I'd have to say an A.I. is very, very possible. You could even apply this in your game, although giving it further knowledge already. If it's barely damaged by the attack, add to low caution. It would just move further away. A high caution attack would be straight up Jumping for your life. ...Maybe a bit of an over-exaggeration, but you get my point. That's how the human mind works, in my opinion.