Tutorial Eight: Enemy AI in Tutorials & Snippets

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#20 Nov 22 2011, 9:26 pm
The combat AI is already typed to only attack /Player mobs. You also shouldn't be checking if things ==null, instead, use something like if(!M.key).
#21 Nov 22 2011, 10:45 pm
Oh! My bad. I forgot I took that part out. Either way, if you want that bit taken out AND NPCs not to attack eachother because you don't want your mob to have a special path, that works too.
#22 Dec 18 2011, 11:04 am
why does it say for me that level=1 is an undefined var
#23 Dec 18 2011, 4:32 pm
Capital Level?
#24 Mar 29 2012, 9:12 am
When my enemy attacks once close to me, it disappears. What should i go?
#25 Mar 29 2012, 4:25 pm
In response to Michael.smith94 (#24)
Posting the relevant code would be helpful.
#26 Apr 2 2012, 2:08 am
i need help i put the combat ai proc in but it says this;179:error: M: undefined type: M for every line with 'M'
#27 Apr 2 2012, 6:44 am
In response to Michael.smith94 (#24)
Michael.smith94 wrote:
When my enemy attacks once close to me, it disappears. What should i go?


I think it's probably the flick, his enemy probably doesnt have the attack state.
#28 Apr 25 2012, 7:36 pm
I had the same issue with the disappearing enemies, except they were only visible when attacking. Turns out I forgot to specify a name for the enemy's walk state.

Another bit of weirdness I had was attacking myself if another enemy was out of range. Adding the following under the Attack verb right above the damage calculation cleared it up:

if (M == src) return 0

Thanks again for the Tutorials. They're a good kickstart even if they aren't perfect.
#29 May 3 2012, 11:16 pm
Hello Falacy
mob/monsters
    Basic_Enemy
        Troll
            hp=10
            maxhp=10
            New()
                src.oldx = src.x
                src.oldy = src.y
                src.oldz = src.z
                src.oldexp = src.exp
                src.odlhp= src.maxhp
                src.blastable=1
                src.oldzenni = src.zenni
                ..()
    Move(var/turf/NewTurf,var/StepDir)
        switch(StepDir)
            if(NORTHWEST)   pick(step(src,NORTH),step(src,WEST))
            if(NORTHEAST)   pick(step(src,NORTH),step(src,EAST))
            if(SOUTHWEST)   pick(step(src,SOUTH),step(src,WEST))
            if(SOUTHEAST)   pick(step(src,SOUTH),step(src,EAST))
            else    return ..(NewTurf,StepDir)
    New()
        ..()
        spawn(-1)    src.CombatAI()
        return ..()

mob/monsters/proc/CombatAI()
    spawn while(src)
        sleep(rand(15,18))
        var/mob/target
        target=locate(/mob/Player) in oview(11,src)
        if(target)
            while(src.blastable && target && get_dist(src,target)<8)
                step_towards(src,target)
                var/mob/a = ""
                if(src.dir==NORTH && target.y == src.y +4 &&target.x == src.x) a = target
                else if(src.dir==SOUTH && target.y==src.y -4 &&target.x == src.x) a = target
                else if(src.dir==WEST && target.x == src.x -4 &&target.y == src.y) a = target
                else if(src.dir==EAST && target.x == src.x +4 &&target.y == src.y) a = target
                if(a != "")
                    src.Monster_Blast()
                sleep(12)
        else
            src.exp = src.oldexp
            src.aggresive = src.oldaggresive
            src.zenni = src.oldzenni
            src.hp=src.odlhp
            src.loc = locate(src.oldx,src.oldy,src.oldz)


This is my AI system. But whenever I use this my CPU increase for 2%. What I want to do here is that when players are in AI oview(7-3) he will do projectile.
My goal is also to prevent AI from facing them diagonally!
I also want that if AI is in oview 2 he will walk to player and attack him once he is 1 step away from him. And while non player is in AI oview he will be teleported back to spawn and get his stats refreshed. Ty
#30 May 4 2012, 5:15 am (Edited on May 4 2012, 5:23 am)
 
mob/monsters/proc/CombatAI()
    spawn while(src)
        sleep(rand(15,18))
        var/mob/target
        target=locate(/mob/Player) in oview(11,src)
        if(target)
            while(src.blastable && target && get_dist(src,target)<8)
                step_towards(src, target)
                var/mob/a
                if(get_dist(src, target) >= 3 && get_dist(src, target) <= 7)
                    a = target
                if(a)
                    src.Monster_Blast()
                sleep(12)
        else
            src.exp = src.oldexp
            src.aggresive = src.oldaggresive
            src.zenni = src.oldzenni
            src.hp=src.odlhp
            src.loc = locate(src.oldx,src.oldy,src.oldz)


There you go. Your code is a ton more complicated than it needs to be.

/mob/monster
    name = "monster"
    icon = 'monster.dmi'
    desc = "a horrible green monster"
    var/mob/target
    var/speed = 5 //The lower the speed, the faster the monster is!

    New()
        ..()
        life()

    proc/life()
        if(!target) for(var/mob/M in view(7, src))
            if(M.client)
                target = M
                break
        if(target)
            if(target in view(1, src)) attack(target)
            else step_to(src, target)
        else step_rand(src)
        spawn(speed) .()

    attack(var/mob/M as mob)
        view(7, src) << "[src] claws [M]!"
#31 May 14 2012, 9:55 am
ok i dont get this my enemy is not attacking watsoever it just sits there.. could it be because i set the enemy with map editor or wat??? btw yes ive been following since tut. 1
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