Density and semi-opacity help needed

ID:270638
 
Jul 12 2006, 12:00 pm
I am sorry if this has been posted before, but after literally almost 2 hours of searching on the forums I couldn't find what I needed. Maybe I am using the wrong keywords. Well I was wondering if there was anyway to have one icon be able to have like part of it "density = 0" and the other part "density = 1" For example:



Ignore the orange part on the right that somehow got in my cropping.

Ok so the right the gray part is a sidewall. But that isnt an icon thats included with the grass. It's "over" the grass as I am going to call it. But if I make the sidewall icon a completely dense icon the whole tile would be unable to go through. And that is what I am trying to solve. So for the sidewall icon I am trying to figure out if the left side thats empty can be made non-dense and the wall itself to be dense.

The only other way I can think of doing this is making the sidewall a whole icon. But I'd perfer not to for graphic issues.

Any help would be appreciated.
Jul 12 2006, 12:06 pm
U could use the pixel_x and pixel_y variables...

something like...
turf
    Entered(mob/M)
        M.pixel_x+=watever the num is
Jul 12 2006, 12:49 pm
In response to Flame48
But doesn't pixel_x and pixel_y essentially move the whole tile left or right; up or down?
Jul 12 2006, 10:19 pm
In response to Sanosake Sagara
No. In that Entered() proc, mob/M was passed as an argument, M being the mob that just Entered() the turf. See?

Though, he didn't check IF it WAS a mob, so if an obj or anything would enter it, it'd runtime.

But pixel_x would be quite buggy there. Or so I'd see it. And as that fence thing there is only a few pixels thick, I'd say;

client
  North()
    if(locate(/obj/northernfence) in usr.loc) {usr.dir=NORTH;return 0}
    ..()


That's an example. If the client will go north, but there's a fence on the same tile of him, yet the tile is drawn to be standing north (northernfence in the code), it won't move, yet he will face the tile thanks to usr.dir=NORTH.

If anyone got a better approach, I'd be glad to hear it. I'm not actually pleased with my own :x
Jul 12 2006, 10:48 pm
In response to Mysame
What you could do, is to make four lists(Let's say 'northdense','westdense','eastdense' and 'southdense'), and put all the objs that have a density on one specific side in the correct list.

And then, overide client/North(), client/South(), etc, and use a modified version of Mysame's code to loop through all the objs in that loc, and see whether it is in the correct list. And tadaaa!

O-matic
Jul 13 2006, 8:37 am (Edited on Jul 13 2006, 10:48 am)
Directional density...
atom
    var
        dir_density = 0
    proc
        dir_density(dir)
            if(istype(dir, /atom))  //you can pass an object instead
                dir = get_dir(src, dir)
            return dir_density&dir
    Enter(atom/movable/M)
        .=..()
        if(M.density || M.dir_density)
            var/enter_dir = get_dir(src, M)
            if(dir_density(enter_dir)) .=0
            for(var/atom/A in contents)
                if(A.dir_density(enter_dir))
                    .=0
                    break

Then just make an object's dir_density variable contain the bit flags for the directions you want to block movement from.
(edit)
Something else just hit me. You'll also probably want to check for directional density in the Exit function as well, or you'll still be able to walk over your wall in the other direction.
(/edit)
obj/wall
    north
        dir_density = NORTH
    south
        dir_density = SOUTH
    northeast
        dir_density = NORTH | EAST
obj
    elevator
        south_door
            dir_density = NORTH | EAST | WEST
        doors_on_two_sides
            dir_density = NORTH | SOUTH
    ramp
        Enter(atom/movable/M)
            .=..()
            if(!(M.elevation<=elevation+1 && M.elevation>=elevation-1))
                . = 0
        Entered(atom/movable/M)
            M.elevation = elevation
        rising_to_the_north
            dir_density = EAST | WEST
        circular_staircase
            lower_left
                dir_density = WEST | SOUTH
            lower_right
                //I think you get the point