Using a .png as turf

ID:156977
 
Jun 20 2010, 8:28 pm
I have a 10x10 map and I'm using a 320x320px .png as the "background" for the map. I want to swap out the background image with another one at runtime. How would I do that?

ts
Jun 20 2010, 8:36 pm
If your map format is TOPDOWN, you simply change icon of object which is located at (1,1), if TILED then it gets split into tiles, and you'll have to use loop and set different icon for each tile
Jun 20 2010, 8:37 pm
IIRC, the map gets split up into different turfs when run, so you cannot simply change the turf.icon and expect them all to change, you could try block() and go through and change each one like that.
Jun 20 2010, 8:44 pm
In response to Leur
Only '1' turf is returned for the "block" of 10x10 so this is not possible.
Jun 20 2010, 8:45 pm
In response to Ripiz
Your just saying it can't be done and that I have to break the image into individual turfs, right?
Jun 20 2010, 8:49 pm
In response to Tsfreaks
 
proc/ChangeBackground()
    if(world.map_format==TOPDOWN_MAP)
        var/obj/background/B = locate(/obj/background) in world
        if(B)
            B.icon='new_icon.png'
    else if(world.map_format==TILED_ICON_MAP)
        for(var/obj/background/B in world)
            B.icon='new_icon.png'
Jun 20 2010, 8:56 pm
In response to Tsfreaks
You try this?
for(var/turf/T in block(locate(1,1,1), locate(10,10,1)))
Jun 20 2010, 9:03 pm
In response to Leur
Yeah. It returns one turf.

ts
Jun 20 2010, 9:07 pm
In response to Ripiz
OK... I didn't know about "map_format" I'm playing around with it and can now see the different behaviors between each type.

Thanks,
ts
Jun 20 2010, 9:14 pm
In response to Tsfreaks
I just tested it, and the results were like what you said, there was 1 icon, with a bunch of blank returns afterwards.

-Retested, I tried using for(var/turf/T in locate(1,1,1)) but that didn't work, this however did work.

turf
    background
        icon='test.png'
mob
    verb
        getTurfs()
            for(var/turf/T in block(locate(1,1,1),locate(1,1,1)))
                T.icon='test2.png'
Jun 20 2010, 9:20 pm
In response to Leur
Leur wrote:
I tried using for(var/turf/T in locate(1,1,1)) but that didn't work

For the sake of explanation:
locate(1,1,1) returns a turf, so the line would read like, for any turf in this turf. As a turf can never contain another turf, the for statement logically finds no object object fulfilling your requirements and returns.
Jun 20 2010, 9:20 pm
In response to Leur
ok... interesting. Thanks for following up. I may make use of it after all.

ts

Jun 20 2010, 9:28 pm
In response to Schnitzelnagler
*facepalms* Thanks Schnitzelnagler, I always repeat this error for some reason.

TsFreaks:
var/turf/T = locate(1,1,1)
T.icon='test2.png'
Jun 20 2010, 9:37 pm
In response to Leur
Leur wrote:
TsFreaks:
var/turf/T = locate(1,1,1)
T.icon='test2.png'


Actually, assuming your previous snippet with the strange occupational therapy for your poor CPU, you might as well try locate(/turf/background), or even locate(my_typepath), which would yield a more modular version, allowing you to package a neat little flexible procedure that takes a type path and either an icon file, or an icon state as argument. Locate the turf with the type path, if finding such a turf, and an icon file was passed, change the icon variable, else, if an icon_state (text) was passed, check the turfs icon for that icon_state and set it accordingly if possible. Return true or false, according to success or failure.