Castle Paradox

Battleblaze · Posted: Thu May 26, 2005 7:25 am Post subject: Intelligent NPC movements

I'm making a game and I'm tryin to have stealth as an element.

Of course I have an attack script that lets you destroy the NPC (james' sword script) but I don't know how I would go about running the two at the same time. What I'm trying to go for is, when you get within 5 blocks/tiles range of the NPC (and this has to work for more than 1 type of NPC) the NPC will starts to chase you.

What would be even better is if the chase hero part wore off after awhile and the nPc would return to its post...But all I want now is it to follow you if you get too close.

And the step on NPC won't work because I need to have it work for all the NPCs on the map, so using tags is out of the question...

They did somthing like this in smokey magoo but I'm not sure how.
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Mike Caron · Posted: Thu May 26, 2005 7:48 am Post subject:

To tell whether an NPC is within 5 tiles of you (better to think of it this way), you'll need to do something like this:

Battleblaze · Posted: Thu May 26, 2005 5:13 pm Post subject:

I had to configure it (hspeak hated your varible definitions so i just kept cutin it down until it worked) but hspeak hates the and definitions.

it says

If statements only require one condition you have 3. Try using and & Or statements instead...even tough the script HAD and and or statements...

This is all thats left of your script after I tried to make it work...(sorry I'm really bad at arguments and such)

nclude,plotscr.hsd

define script (1,detect NPC,1,0,)
script, detect NPC,NPC ID,begin

variable(apc,i)
for(apc,-1,1) do, begin

if(npc x(npc) >> hero x(me) - 5,and
npc x(npc) << hero x(me) + 5,and
npc y(npc) >> hero y(me) - 5,and
npc y(npc) << hero y(me) + 5)
then, begin
#do something if an NPC is close
end
end
end

it all makes me sad Neutral

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Indy OHR! and National OHR Month Contest going on now!

"Aeth calls PHC an anti-semite; PHC blames anti-semitism"
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Mike Caron · Posted: Thu May 26, 2005 6:23 pm Post subject:

Yeah, that was my bad. I accidentally used "<" instead of "<<" and so forth.

This code is the revised code that *would* make the NPC chase you, except I just remembered something: Alter NPC affects all the NPCs of that ID. So, if, say, you have a bunch of guards to be stealthy around, you'd need to make several NPCs with the same properties, you couldn't just drop the same NPC down a couple times.

Anyway, back to the script, making the guard lose interest in you after a while is much more difficult because it would be difficult to keep track of how long each guard was chasing you and stuff. Or, we could just modify the script to say "if they're NOT within 5 tiles, they're not interested", making it so you'd need to escape, or some such thing.

TMC · Posted: Thu May 26, 2005 7:09 pm Post subject:

Thats because Mike is (still) using - instead of -- for subtraction.Change those. Also, you have one more instance of 'apc' in the for statement.

Actually, if you want the guard to chase you when you come within 5 tiles, you should probably use <= and >= instead of << and >>

Mike Caron · Posted: Fri May 27, 2005 7:50 am Post subject:

Shut up. Yes, that which TMC says is correct. I always forget --...
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Battleblaze · Posted: Sat May 28, 2005 7:43 am Post subject:

For the Gaurd to lose interest coulden't you just have a wait command followed by another alter NPC command (to wander)?

Awright I have just a few more questions. The script compiled,this is good. But does it have to be a specific NPC or argument?Do have have to change the varible or what? And in the editor the NPC will run the script....but in order to be activated the NPC has to be touched, which deafeats the whole purpose of the stealth thing....

All I really want now is some final directions Smokin'

...
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Indy OHR! and National OHR Month Contest going on now!

"Aeth calls PHC an anti-semite; PHC blames anti-semitism"
-squall

TMC · Posted: Sun May 29, 2005 2:49 am Post subject:

No, you run that script in a while loop in your map autorun script, once for each guard id.

So having a wait followed by another alter npc command won't work. You could have a set of timers, and a bunch of timer checking code in your main loop, but ere it gets compicated quickly, I wouldn't suggest it.

junahu · Posted: Tue Jul 19, 2005 5:17 am Post subject:

Soule X · Joined: 13 Sep 2004 Posts: 131 Location: Indiana

Couldn't you just run it as the "Every Step" script?

That way you could do the "Wait (x), Set it to Wander".

I don't see a problem with this, except when you take a step it's going to start chasing you again. But you should be able to set a tag or something that makes the script not run for a few steps.

junahu · Posted: Thu Jul 21, 2005 2:20 am Post subject:

The problem there is that the player has to step to be noticed. With a map autorun/while loop script, it'll run every frame regardless of whether you're moving or not.
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junahu · Posted: Thu Jul 21, 2005 2:24 am Post subject:

God damn it! My previous link went to a person's profile rather than an actual game. Damn it all! Pissed off!

This is what I meant to link to (I hope)

http://castleparadox.com/ohr/download.php?game=408

P.S. I forgot that the .hss files were not included. I'll get them by tommorrow to show everyone how I did 'intelligent' npcs.
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