isomtric stacks in Developer Help

ID:157521
 
Feb 22 2010, 12:37 pm
well this is a problem i come across while using isometric.
to check the user's pixel_z you have to read a turf. what if there 2 turf in the same location with different pixel_z e.g 1 with 32 pixel_z, one with 64 pixel_z. how will i be able to deal with that problem. any thought would be helpful.
#1 Feb 22 2010, 12:55 pm
XnathanielX wrote:
(...)to check the user's pixel_z you have to read a turf

I'm not sure how you came to this conclusion, but it isn't exactly valid. To access an atom's pixel_z variable, you just check an atom's pixel_z variable.


XnathanielX wrote:
what if there 2 turf in the same location

That's impossible. There can only ever be one turf at any given location by definition. Everything else is just a graphical effect.
#2 Feb 22 2010, 12:56 pm
There are never two turfs in the same location. When you put one turf on top of another in the map editor, the old turf becomes an underlay.

Lummox JR
#3 Feb 22 2010, 1:00 pm
In response to Schnitzelnagler (#1)
what about obj then?
#4 Feb 22 2010, 1:04 pm
In response to XnathanielX (#3)
btw since my game is gonna be up to probally 1280 pixel_z levels in total all full of objs

edit
obj
    var
        pixelfloat
    
    New()
        ..()
        src.pixelfloat = src.pixel_z + 32 / 32
    
    Entered(atom/O)
        if(src.density == 1)
            var/check = src.pixelfloat * 32
            var/check2 = O.pixel_z + 2
            var/check3 = check - check2
            if(check == check2 & check3 > 0)
                O.pixel_z = check
            if(check3 < 0)
                while(src.density == 1)
                    O.pixel_z -= 16
                    if(src.pixel_z == check)
                        return

well here a snip of the gravity system. as you see the problem is if multi obj are on the same tile what would happen.
#5 Feb 22 2010, 3:02 pm
In response to XnathanielX (#4)
...nothing, because Entered() isn't called for objs when you move to their location?
#6 Feb 23 2010, 10:15 am
In response to Garthor (#5)
what can you use for obj then?
#7 Feb 23 2010, 12:25 pm
In response to XnathanielX (#6)
You can write a Stepped_On() proc like so:

turf
  Entered(atom/movable/A)
    ..()
    for(var/atom/movable/M in src)
      if(A == M) continue
      M.Stepped_On(A)

atom/movable
  proc/Stepped_On(atom/movable/M)
#8 Feb 24 2010, 9:31 am
In response to Garthor (#7)
for an OBJ!... because i need an stack of objs, not a turf.
#9 Feb 24 2010, 9:59 am
In response to XnathanielX (#8)
The problem here is that you are supposed to try and understand what Gathor is suggesting here instead of lindly copy and pasting. If you did so, you'd see how his last posting in combination with his previous reply would kind of fit to your request. Even though your request was rather not what you really wanted, but that's an entirely different topic.