How to: script Artificial Intelligence

[Dragon5]

Both links are down.

[YinYin]

updated

[Memento]

I made quite the noob script probably, lol. I'm also expected a real noob mistake.. I don't really understand it all just yet.

I'm getting the following error(s):

ai\692.as: INFORMATION : Building.
ai\692.as: <12, 2>: ERROR : Unexpected token 'else'
ai\692.as: ERROR : Unable to build module

Spoiler (Click to View)

int ego(){
//close range:
if (target.y == 0 && abs(target.z-self.z) < 9 && (self.x-target.x)*((self.facing?1:0)*2-1) < 0 && (self.x-target.x)*((self.facing?1:0)*2-1) < 80 && target.state == 16 && self.mp >= 50){
if (abs(self.x-target.x) > 0 && (self.state == 2 || self.state == 0))
if (self.x-target.x > 0){left();} //turn back
else {right();}
}
else if (self.x-target.x < 0){left();} //
else {right();}
return 1;}
//basic move conditions:
else if (target.y == 0 && abs(target.z-self.z) < 9 && (self.x-target.x)*((self.facing?1:0)*2-1) > 0 && (self.x-target.x)*((self.facing?1:0)*2-1) < 80){
if (target.state == 16 && self.mp >= 50 && abs(self.x-target.x) > 50){DuA();} //D^A against DoP
else if (target.state == 16 && self.mp >= 50){ //adjust x for D^A
if (self.x-target.x < 0){left();}
else {right();}
return 1;
}
else if (target.state == 8 || target.state == 16){a();} //A against DoP and broken defense
else if target.state == 16) {dda();} //DvA against DoP
else if (target.state == 3 && self.mp >= 50){D();} //D against attacks with enough mp
if (self.state == 7 && self.bdefend >= 20){DuA();} //D^A from critical defense

//long/mid range:
if (target.y == 0 && abs(target.z-self.z) < 7 && (self.x-target.x)*((self.facing?1:0)*2-1) && if (((self.x-target.x) => 120) && ((self.x-target.x) =< 220)) && self.mp >= 110){
if (abs(self.x-target.x) > 0 && (self.state == 1 || self.state == 0))
if (self.x-target.x > 0){dda();} //DvA
else {left();} //turn back
else {right();} //turn back
}
if (target.y == 0 && abs(target.z-self.z) < 7 && (self.x-target.x)*((self.facing?1:0)*2-1) && if (((self.x-target.x) => 300) && ((self.x-target.x) =< 500)) && self.mp >= 175){
if (abs(self.x-target.x) > 0 && (self.state == 1 || self.state == 0)){
if (self.x-target.x > 0){DrJ();} //D>J
else if (self.x-target.x < 0){DlJ();} //D<J
else {right();} //turn back
else {left();} //turn back
}
else if (abs(100*(self.z-target.z)/((self.x-target.x)*((self.facing?1:0)*2-1))) <= 15 && abs(self.x-target.x) < 300 && abs(self.x-target.x) > 150){
if (self.x-target.x > 0){DlA();} //D<A
else if (self.x-target.x < 0){DrA();} //D>A
}
//instant attacks
if (self.state == 5){A();} //dash attack
if ((self.frame == 286 && target.state == 11 || target.state == 16) {A();} //long combination
if ((self.frame == 353 && target.state == 11 || target.state == 16) {J();} //meteor combination
else if ((self.frame == 353 && target.state == 11 || target.state == 16) {DrJ();} //kamehameha combination
if (self.frame == 244) && (abs(self.z-target.z) => 15){DuJ();} //IT kamehameha
return 0;

I also don't really understand when I should use certain characters such as {. And yes, I used Clide as a base for his AI...

[YinYin]

Well just like normal mathematics you need to open and close your braces properly.
Your second if statement is missing the {do stuff}.
if (abs(self.x-target.x) > 0 && (self.state == 2 || self.state == 0)) { }
And I think you are missing/closing other {/} braces too.

First return 1;} closes the main ego() function (this should happen at the end).
Second if after long/mid again is missing braces. if (abs(self.x-target.x) > 0 && (self.state == 1 || self.state == 0)) { }

Maybe use Someoneelse's data changer and choose new AI file, it will make braces that belong together bold when your cursor is near them.

[Som1Lse]

ai\692.as: INFORMATION : Building.
ai\692.as: <12, 2>: ERROR : Unexpected token 'else'
ai\692.as: ERROR : Unable to build module

<x,y> means that there is a mistake on line x, in this case 12.
The mistake is that everything beyond "//basic move conditions:" isn't within a function, and once it encounters something that should be inside a function (such as an "else"-statement), it throws an error.
Also the "else"-statement has to follow an "if"-statement, but in this case it is following the function declaration ("int ego(){").

I also don't really understand when I should use certain characters such as {. And yes, I used Clide as a base for his AI...

{'s and }'s are used to indicate a block of code.
An example of this is in an "if"-statement. If you want to execute multiple lines of code you'll have to group it within the two brackets like this:

CPP-Code: if(this_is_true){ do_one_thing(); do_another_thing(); }

If we were to leave out the brackets like this:

CPP-Code: if(this_is_true) do_one_thing(); do_another_thing();

it would only be the next statement ("do_one_thing();"), and the statements after that would be executed no matter the the result of the "if"-statement.
Also note that the indentation of the lines doesn't matter, so all the following pieces of code mean exactly the same thing

CPP-Code: //code 1 if(this_is_true) do_one_thing(); do_another_thing();   //code 2 if(this_is_true){ do_one_thing(); } do_another_thing();   //code 3 if(this_is_true){do_one_thing();} do_another_thing();

[A-Man]

I am starting to understand the scripting a little. I now want to set a dodging move for attacks that cause >= 70 injury (AI will only do it when it has >= 400 MP so it won't be a cheap move). Is there a way to do this? An alternative would be using target.state == 3, perhaps with a target.mp condition.. but it would not have the same effect

I don't think a class parent that checks the target's itr injury value is implemented. I don't want to be nosy, but I wouldn't advice being that specific with your AI's. Imagine a scenario where your opponent is about to hit you with a super deadly combo with 10 hits. Each hit causes 30 damage (which means your character won't do the dodging move D: ), and thus 300 of your hp. Checking all that would just be a waste of time.

Another problem. I want to make my character use DJA+A+A+A.... when the opponent is at a distance. It's a move to charge MP. However, he DOES go to the charging stance (caused by DJA), but he only starts tapping A when I walk.

Code:

else if (self.mp <= 400 && (abs(self.z-target.z) > 40) || (abs(self.x-target.x) < 1000 && abs(self.x-target.x) > 320)) {
  if (self.x-target.x > 0){DJA();}         //DJA
  else if (self.x-target.x < 0){DJA();}   //DJA
  
  return 1;
}

//instant attacks
if (self.state == 5){A();}                                               //dash attack
if ((self.frame == 286 && target.state == 11) || (target.state == 16)) {A();} //long combination
if ((self.frame == 353 && (target.state == 11) || (target.state == 16))) {DuJ();} //meteor combination
if ((self.frame == 353 && (target.state == 16) && self.mp >= 220)) {DrJ();} //kamehameha combination
if (self.frame == 365 && target.state == 12){A();}                     //kick up
if (self.frame == 244 && (self.mp >= 85) && (self.x-target.x)*((self.facing?1:0)*2-1) > 50) {DuJ();} //IT Kamehameha
if (self.frame == 166 || self.frame == 20 || self.frame == 172 || self.frame == 22 && (self.mp < 500) && (abs(self.x-target.x) < 1000 && abs(self.x-target.x) > 250)|| self.frame == 166 || self.frame == 20 || self.frame == 172 || self.frame == 22 && (abs(self.z-target.z) > 30)) {A();} //DJA+A+A..
return 0;
}

Can you please show use the code above the "else if" statement? Namely the original first "if" statement.

And is there a way to make him avoid picking objects?

Well, if the script you are working isn't an extension for a main AI - a brand new AI where you even control walking and stuff-, it won't pick items by default.

[YinYin]

I don't think a class parent that checks the target's itr injury value is implemented. I don't want to be nosy, but I wouldn't advice being that specific with your AI's. Imagine a scenario where your opponent is about to hit you with a super deadly combo with 10 hits. Each hit causes 30 damage (which means your character won't do the dodging move D: ), and thus 300 of your hp. Checking all that would just be a waste of time.

Actually you can - but I agree that this isn't the best approach.

[Memento]

I don't think a class parent that checks the target's itr injury value is implemented. I don't want to be nosy, but I wouldn't advice being that specific with your AI's. Imagine a scenario where your opponent is about to hit you with a super deadly combo with 10 hits. Each hit causes 30 damage (which means your character won't do the dodging move D: ), and thus 300 of your hp. Checking all that would just be a waste of time.

Actually you can - but I agree that this isn't the best approach.

I'm making this pretty confusing: moved the post to a new topic just before you guys replied.

I will add the first part of the code in that new topic..

Also, the character should only dodge sometimes, not always.. that is the main reason for choosing a higher injury. If there are other ways, I'm fine with that too.

[A-Man]

Also one more thing, that is here:

Code:

(self.mp <= 400 && (abs(self.z-target.z) > 40) || (abs(self.x-target.x) < 1000 && abs(self.x-target.x) > 320))

I would recommend you use parentheses when using "||" and "&&" at the same time. Cuz without them, you can make sure the computer will interpret condition the way you want.

P.S: a mod should please merge these to the new thread.

[dctbullshit]

wonder why my exe file crashes when com character begins to move!