Protected Area Markers + Danger Signs

[ArMoGaDoN 0]

I have adapted another script for auto-placing markers around a killzone for protected respawn-areas.

The code all works, but it cannot handle if the angle/azimuth/direction/tilt (whatever you call it) is not at zero..

My math (or lack of) knowledge is letting me down badly here, and I can find nothing much on how to do this anywhere..

The code below is what I have now, plus some attempts and some e.g. code from web.  If anyone can mod this code to allow the tilt/angle of the ellipse to be properly calculated then it would be VERY much appreciated.

The thing only runs once per zone, therefore I want to leave it as sqs.

;areaK.sqs - places warning boards

;[this,100,200]exec"areaK.sqs";

_CT=_this select 0;

_xPos=getPos(_CT)select 0;

_yPos=getPos(_CT)select 1;

_r1=_this select 1;

_r2=_this select 2;

_tablesC=((_r1 max _r2)*0.36);

_i=0;

#AKLOOP

?(_i>359):exit;

_xP=_xPos+(_r1*(sin _i));_yP=_yPos+(_r2*(cos _i));

if(surfaceIsWater[_xP,_yP])then{k=createVehicle["BuoySmall",[_xP,_yP,0],[],0,"NONE"];}else{k=createVehicle["Danger",[_xP,_yP,0],[],0,"NONE"];};

m=createMarker[format["MarkerK"+str _i],[_xP,_yP,0]];

format["MarkerK"+str _i]setMarkerType "Dot";format["MarkerK"+str _i]setMarkerColor "ColorYellow";

k setdir (_i+180);k setPos [_xP,_yP];

format["MarkerK"+str _i]setMarkerDir _i;

_i=_i+(360/_tablesC);

~0.2

goto "AKLOOP";

;------------------------------

;tried various other things but didnt work based on this snippet that I found on web...

; Basic coordinates for ellipse with major axis aligned along the x-axis.

;

;set x [expr {$a * cos($angle)}]

;set y [expr {-$b * sin($angle)}]

;

; Co-ordinate frame rotated by "tilt." Note that y-axis is "down"

;

;set xRot [expr {$x * cos($tilt) + $y * sin($tilt)}]

;set yRot [expr {$y * cos($tilt) - $x * sin($tilt)}]

;

;return

;HELP! is it due to radians/degrees or something?

;how should it be done?  My math is letting me down here...

[InqWiper 0]

If you want to create a circle killzone with the radius of 30 or something...why dont you place and object in the middle of the killzone and use a camera with relpos to place the cones/danger signs

cam="camera" camcreate [0,0,0]

cam camsettarget obj

#Loop

_i=0

cam camsetrelpos [0,30,0]

cam camcommit 0

@camcommited cam

sign="danger" createvehicle [getpos cam select 0,getpos cam select 1,0]

obj setdir getdir obj+1

_i=_i+1

?_i<359:goto "Loop"

exit

I havent tested this I just wanted to show what I meant. I dont know if thats the correct name for the danger sign, you might want to make it run only on the server etc.

[ColonelSandersLite 0]

I suggest you take a look at kronzky's object placer scripts and see how he did it there as he does that exact same thing.

[ArMoGaDoN 0]

Thanks for pointing me in the right direction, those object placement scripts don't work with ellipses, however they did give me a big clue on how to get it working.

For anyone interested here's the stuff I added/changed.

God knows if the math makes any sense at all, but the ellipse is in right place, tilted to the correct angle, and I have the marker-boards pointing outwards too.

_cosdir=cos((_tilt));_sindir=sin((_tilt));

_i=0;

#AKLOOP

?(_i>359):exit;

;_xP=_xPos+(_r1*(sin _i));

;_yP=_yPos+(_r2*(cos _i));

_xP=_xPos+((_cosdir*(_r2*(sin _i)))-(_sindir*(_r1*(cos _i))));

_yP=_yPos+((_sindir*(_r1*(cos _i)))+(_cosdir*(_r2*(sin _i))));

.......

k setdir (_i+180-_tilt);k setPos [_xP,_yP];

.......

Thanks again.

[ArMoGaDoN 0]

Dangit

Nope it still ain't working right.

Works fine for 45-50 degree tilt,

but try 1 or 0 or 180 or 5 and the numbers still don't make any sense.

Please, if there are any mathematicians out there I am really struggling with this!