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Mouse pos

by Gavin Beard · in Torque Game Builder · 03/10/2005 (11:43 pm) · 14 replies

Hiya, i'm trying to return the tile below the mouse pointer when i click.

i'm using

function sceneWindow2D::onMouseDown( %This, %Modifier, %WorldPosition, %MouseClicks )

{
echo($baseMap.getTile(%WorldPosition));
}

which returns nothing, lookin in the console its the %worldPosition returning nothing, my mouse is enabled if if a echo something else when i click its ok, is there summin i'm missing?

cheers
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Torque Owner Matt Harpold
#1
03/11/2005 (12:05 am)
You need to use .pickTile(%WorldPosition) which returns the X/Y of the tile in the tile map.

Torque 3D Owner Gavin Beard
Byte Logic
#2
03/11/2005 (12:21 am)
But my main prob is that %WorldPositon doesnt seem to contain n e thing. i get error - unable to find object '' calling function 'pickTile'

and if i just echo %WorldPostion its blank :(

Associate Melv May
#3
03/11/2005 (12:36 am)
Gavin,

Your error-message is saying that it doesn't know what "$baseMap" is. "unable to find object calling function 'pickTile'"

Also, be careful, "pickTile()" is a function of a layer, not a map.

- Melv.

Torque 3D Owner Gavin Beard
Byte Logic
#4
03/11/2005 (12:47 am)
%baseMap is layer 0 of a map containing two layers, n e idea why it may be giving this error?

Associate Melv May
#5
03/11/2005 (2:05 am)
Is it "%baseMap" or "$baseMap"?

Does the following code echo "VALID!"? (assuming you're using $baseMap).

if ( isObject($baseMap) ) echo("VALID!");

- Melv.

Torque 3D Owner Gavin Beard
Byte Logic
#6
03/11/2005 (7:53 am)
Sorry its %baseMap, should it be % or $??

i'll try that echo when i get near my home puter

Associate Melv May
#7
03/11/2005 (9:35 am)
Gavin,

If you're accessing it outside of a specific function then it should be global "$" as "%" means local.

Is this what you meant?

- Melv.

Torque 3D Owner Gavin Beard
Byte Logic
#8
03/11/2005 (10:53 am)
Yeah thats right, i am using the rigt type, i'll try the other thing suggested when i get home :)

Torque 3D Owner Gavin Beard
Byte Logic
#9
03/12/2005 (12:11 am)
Ok, so i changed all the % and $'s around so they were correct (which strangely makes my map appear in a differnt place but hey)

and i run the if ( isObject($baseMap) ) echo("VALID!"); and get VALID!

if i change it back to echo($baseMap.pickTile(%WorldPosition); i get a return of

unknown command PickTile.
object t2dSceneGraph(1232) fxSceneGraph2D -> simObject

Torque Owner Harold "LabRat" Brown
#10
03/12/2005 (12:30 am)
Have you done a $baseMap.dump();

That will tell you what you've got

Torque 3D Owner Gavin Beard
Byte Logic
#11
03/12/2005 (2:04 am)
No i havent :)
i'll try that when i get home monday. wish i'd brought my laptop now :'(

what kinda output does that give then?

Torque 3D Owner Gavin Beard
Byte Logic
#12
03/14/2005 (8:32 am)
Ok so now i'm home i've done the $baseMap.dump(); and the pickTile() function is not listed :'(

in a file i have called functions.cs i just have this procedure

function loadMap(%level)
{
$tMap = new fxTileMap2D() { scenegraph = t2dSceneGraph; };
$tMap.loadTileMap("~/client/maps/" @ %level);

$baseMap = %tMap.getTileLayer( 0 );
$baseMap.setPosition( "-8 -1.5");
$baseMap.setTileSize( "4.17 4.17");

$secMap = %tMap.getTileLayer( 1 );
$secMap.setPosition( "-8 -1.5" );
%secMap.setTileSize( "4.17 4.17" );

}

then call the function in client.cs, if i do the dump there are lots of functions but no picktile

Associate Melv May
#13
03/14/2005 (10:04 am)
You seem to not have changed all the "%" for "$" in your example above.

Are you getting any errors in the console?

- Melv.

Torque 3D Owner Gavin Beard
Byte Logic
#14
03/14/2005 (10:13 am)
Hehe, seems u r right, its coz i didnt change %tMap.getTileLayer( 0 ); to $tMap.getTileLayer( 0 ); but i thought as it was only used within that function it didnt need to be global but it does. no it seems to return a grid refernce, i dont suppose there is a way of grabbing what cell from the image i use for tiles is actually used at that location :D