How to make a better ai using pixel movement

ID:296636
 
Feb 11 2012, 6:48 am
(See the best response by Forum_account.)
Just see this video to understand my problem:
http://youtu.be/5WUAZjovTuw

Here is the ai for my mob:
        proc
            Watching()
                for(var/mob/m in oview())
                    if(m.client)
                        target = m
            AI()
                while(src)
                    stop()
                    if(target)
                        dir = get_dir(src,target)
                        if(bounds_dist(src,target) > 8)
                            move_to(target)
                        else
                            target << "OK"
                            stop()
                            sleep(4)
                    else
                        Watching()
                    sleep(5)


The worst part is the line they make in the video. The mob disappears if walk outside the map but I just need to make a black dense turf and countour my map.
Maybe the library's pathfinding is dumb or my code is too simple, idk...
Help!
Feb 11 2012, 6:57 am
Best response
It looks like the slow_down proc isn't getting called. I'd also make this piggyback on the action() proc instead of creating an additional loop for all mobs.

mob
    enemy
        action()
            if(target)
                dir = get_dir(src, target)
                if(bounds_dist(src, target) > 8)
                    move_to(target)
                else
                    target << "OK"
                    stop()
                    slow_down()
            else
                Watching()
Feb 11 2012, 7:52 am
In response to Forum_account
Thanks for answering me.

The action wasn't working, so I made some small changes, but now it's the move_to(target) that isn't working...
        proc
            Watching()
                for(var/mob/m in oview(src))
                    if(m.client)
                        target = m
                        break
        action()
            if(target)
                dir = get_dir(src,target)
                if(bounds_dist(src,target) > 4)
                    move_to(target)
                else
                    target << "OK"
                    stop()
                    slow_down()
            else
                Watching()


The weirdest part it's that I checked and the proc is returning 1, but he's not moving. Just look in my direction.
Feb 11 2012, 8:02 am
but now it's the move_to(target) that isn't working...

Put ..() at the end of the action() proc.

Also, if you don't want the AI to run every tick (your AI loop had a delay of 5 at the end) you can do this:

mob
    enemy
        // t is the number of ticks
        action(t)
            
            // every 5th tick...
            if(t % 5 == 0)
                // ... run the AI code
            
            ..()
Feb 11 2012, 8:09 am
Thanks!
Now everything works fine!