Checking the turf under a player

ID:141568
 
Jan 22 2009, 7:09 am
Code:
verb/Dig() // This verb is in an obj
                usr << usr.loc // This is a debug line, I was trying to see what came up when I checked usr.loc
                if(/turf/grass == usr.loc)
                    usr << "You dig a hole."
                    var/turf/hole/Hole/H = new(usr.loc)
                    usr << "You get some dirt."
                    var/obj/items/Dirt/D = new(usr)
                if(/turf/swamp_grass == usr.loc)
                    usr << "You dig a hole."
                    var/turf/hole/HoleS/H = new(usr.loc)
                    usr << "You get some dirt."
                    var/obj/items/Dirt/D = new(usr)


Problem description:

It won't dig anywhere. I click the Dig verb, but nothing happens, except it return the grass turf through the output.

Jan 22 2009, 7:20 am
You are directly comparing a type path to an object instance, which won't ever evaluate to true since they are fundamentally different.
You might want to look into a built-in function called istype().
Jan 22 2009, 8:09 am (Edited on Jan 22 2009, 9:02 am)
In response to Schnitzelnagler
 
for(var/turf/T in view(0,usr)) //or oview()
    if(T.type == /turf/grass)
        //etc

That would check to see if the turf under the player's type is whatever.
Jan 22 2009, 8:27 am
In response to Mizukouken Ketsu
Uhm, what exactly did you want to tell me (as you replied to my posting)?
And how should this code snippet help the original poster?
S/He simply wanted to compare the type of turf the player is currently located on with a given type and act accordingly.
Jan 22 2009, 9:18 am
In response to Mizukouken Ketsu
I think initializing a for() loop and calling a proc....is far far more inefficient than just using usr.loc...
Jan 22 2009, 10:22 am
You have to typecast it.

Like:
var/turf/A=usr.loc


Now you can make whatever changes to it you want as if it is a turf, which it is, usually, but still.
Jan 22 2009, 1:09 pm
In response to Dragonn
That won't work because loc still won't be a type path. Also, loc is considered a turf by DM, anyway, so that won't do anything.

Besides, you don't need to typecast quick value checks like this, anyway.
Jan 23 2009, 8:10 am
In response to Schnitzelnagler
Editted by the way
Jan 27 2009, 7:30 am
Fixed. Thanks for your help.