Turn() not being called.

ID:1759839
 
Jan 10 2015, 7:22 pm
(See the best response by Kaiochao.)
Code:
card/proc/SwitchPos(var/card/D,var/mob/C,p as num)
    if(p == 1)
        D.dir = turn(C.dir,0)
        D.bPos = 0
        return

    D.dir = turn(C.dir,90)
    D.bPos = 1
    return


Problem description:
So I was trying to figure this out as my new team mate showed me it as it will save code lines. Originally it started to work but after deleting the states (Which I read that they are not needed) and we tried figuring it out but nothing happens. Help :/
Jan 10 2015, 7:41 pm
Best response
Looks like you're trying to make a card game where cards can be rotated 90 degrees (relative to the owner's direction) depending on their "bPos".

About your code:
* You defined SwitchPos() as a /card proc, but you're passing the card you're operating on as D instead of just using src.
* You also defined p as the opposite of what you want the card's bPos to end up as.
* You're using turn(dir, angle) properly, but unless your card icon actually has those directions, it's not going to do anything.

If you want to rotate an atom's icon dynamically, you set atom.transform using the matrix() proc and maybe turn(matrix, angle).

card
    proc/SwitchPos(mob/Owner, Position)
        bPos = Position
        transform = matrix(dir2angle(Owner.dir) + (Position && 90), MATRIX_ROTATE)

proc/dir2angle(dir) switch(dir)
    if(NORTH)     return 0
    if(SOUTH)     return 180
    if(EAST)      return 90
    if(WEST)      return -90
    if(NORTHEAST) return 45
    if(NORTHWEST) return -45
    if(NORTHEAST) return 135
    if(SOUTHEAST) return -135
Jan 10 2015, 8:08 pm
K. Figured it out :)

One last question, just for animations purposes, can I still use turn on the dir and changes it direction without affecting the image?
Jan 12 2015, 5:16 pm
BUMP. So I did figure this out but I was wondering if I wanted to print the icon in an output? What tag would I use and how I would go about doing it.

EDIT: SHow the transformed icon.
Jan 12 2015, 6:14 pm
To output an icon to an output control, you must use the \icon text macro:

mob/verb/showMyIcon()
    world << output("\icon[src]")


For further information on the matter, head to the reference: icon text macro
Jan 12 2015, 6:25 pm
Yah I already know that, but I want to show the newly transformed icon.