Hp bar overlay

ID:173998
 
Oct 15 2003, 8:50 am
I've managed to get the hp bar to show up on the player. But I can't get the bar to update when the hp is altered.
Does anyone have any advice? I've looked through the DM guide and didn't find much, I also checked out some tutorials on overlays. Any help would be most appreciated. Thanks.
Oct 15 2003, 6:56 pm
You need to remove the icon from the overlay list, make another overlay with the updated icon for the meter, then add that.
Oct 16 2003, 9:23 am
In response to Loduwijk
mob/player
icon='player.dmi'
icon_state="fighter"
var
hp
maxhp
strength
defence
exp
nextexp
lvl

obj
hpbar
icon='hpbar.dmi'
icon_state="(round(([hp]/[maxhp]*100)/4),1)"

I'm trying to define the object so I can use it as an overlay. I keep getting errors that hp and maxhp are undefined variables. What am I doing wrong?
Oct 16 2003, 11:29 am
In response to OmniSlashX4
There are 2 problems:
1)"hp" and "maxhp" are not defined for obj/hpbar
2) You can't set an icon_state using variables (needs to be a constant) you can however change it in New()

You can do something like:

obj
    hb
        icon='healthbar.dmi'
        layer=MOB_LAYER+3
        proc
            update(mob/M,hp,mhp)//arguements for the proc (The owner of the Healthbar,the owners hp, the owners maxhp
                var/V=(hp/mhp)
                var/obj/hb/A=new
                if(V>=1) A.icon_state="full"
                else if(V>=0.75) A.icon_state="3/4"
                else if(V>=0.50) A.icon_state="1/2"
                else if(V>=0.25) A.icon_state="1/4"
                else if(V<0.25) A.icon_state="low"
                else if(V<=0) A.icon_state="empty"
                M.overlays-=M.healthbar//get rid of current healthbar
                M.healthbar=A//make healthbar=new healthbar
                M.overlays+=M.healthbar//Add the healthbar to the overlays

mob
    var/obj/hb/healthbar
    player//whatever your player is
        Login()
            ..()
            src.healthbar=new/obj/hb//make a new health bar
            src.healthbar.update(src,src.HP,src.Max_HP)//update it
            src.overlays+=src.healthbar//add it to overlays
        Logout()
            ..()
            src.overlays-=src.healthbar
        Del()
            ..()
            src.overlays-=src.healthbar


This assumes you only want it to be on players, and that you have the icon_state's a certain name. You could also do it as A.icon_state="[number]" to save the trouble of the special names for it (It was taken from a game I'm working on in which I figured it would be easier to do It like this). You also in this case need to call healthbar.update() (with arguements) everytime there is a change in hp. However it would not be hard to turn it into a loop if you would prefer to do it that way.
Oct 16 2003, 1:13 pm
In response to Nick231
Thank you, that seems to work, I'm just having a little trouble calling the proc. When I input the args what am I supposed to be inputing?

"call healthbar.update() (with arguements)"<<

What I'm asking is what are the arguments I'm supposed to be inputting in there. Thanks

Oct 16 2003, 1:17 pm
In response to OmniSlashX4
You would do something like:

src.healthbar.update(src,src.hp,src.maxhp

src just needs to be switched to whatever you are updating the healthbar of (Might be usr, or someother variable ie. if M.hp-=damage takes health from the player in a proc, then you would switch src with M).
Oct 16 2003, 1:19 pm
In response to Nick231
Ok THANKS! That worked phew. I'm such a newb lol. Thanks for helpin out.
Oct 16 2003, 3:15 pm
In response to OmniSlashX4
you are declaring the maxhp/hp variables as OBJ variables.

you declared mob/variables up top but when you're using a procedure for an obj it uses obj variables, try to be more specific...