Get View Proc

ID:148200
 
May 30 2003, 4:05 pm (Edited on May 30 2003, 4:20 pm)
Im no math master by any means so I need some help figuring up the diagonals for this proc.
The view essentially looks like this:
XXXXXX
XXXX
XX


I just need to know how to do this for diagonals.
ob/var/sightDist = 3
var/test[] = new/list()






mob
    proc
        getView()
            var/list/turfs[] = new/list()
            for(var/turf/T as turf in view(src.sightDist,src))
                switch(src.dir)
                    if(NORTH)
                        if(abs(src.x-T.x) <= T.y - src.y)
                            turfs += T
                            test += T
                    if(SOUTH)
                        if(abs(src.x-T.x) <= src.y - T.y)

                            turfs += T
                            test += T
                    if(EAST)
                        if(abs(src.y-T.y) <= T.x - src.x)
                            turfs += T
                            test += T
                    if(WEST)
                        if(abs(src.y-T.y) <= src.x - T.x)
                            turfs += T
                            test += T
            return turfs
Jun 2 2003, 6:22 am
*bump*
Even onefishdown didnt know how to do this . Maybe a code guru like Lummox could help.
Jun 2 2003, 8:58 pm
So you're trying to get a vision cone in the direction the mob is facing? Could be looking at some nasty maths here, depending on the field of view you want. 60 degrees? 90 degrees?
Jun 3 2003, 3:29 am
Two things I can tell you for sure:

Nobody can really help you until you actually show what the view diagram would look like for a diagonal. It would help to get the other diagram right too, since there should not be an even number of turfs in each row.

Also, doing this via a switch() is about the worst possible way you could go about it. Using procs like get_step() and turn() would serve you a lot better.

Lummox JR
Jun 3 2003, 3:51 pm
In response to Lummox JR
looks like you have a 30-45 degree vision angle there, just giving a rough estimate its less then 60 because other wise it would be slightly wider in view by the way it wuld look more like this right?


XXXXXXX
XXXXX = usr field of vision
XXX
X = usr position


right?