Giving Object Same XYZ Coordinates then other Object.

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Red Eye

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Joined: 15th Oct 2008

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Posted: 23rd Jul 2009 14:44

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Hey,

Sorry for again a quite strange title.
So this is what i want to achieve:
- You specify the XYZ cordinates of a object lets say a cube.
- The you want that this plane is always on the same XYZ as the Cube, no matter if the Cube moves. The Plane always is on the same XYZ coordinate as the Cube.

I was looking at this:

+ Code Snippet

px=dbSpriteX(1); //this command gives the value returned by dbSpriteX to your px variable
                 //px now holds the current position
if(dbRightKey())
{
    px++;        //increase px
}
if(dbLeftKey())
{
    px--;        //decrease px
}
dbPositionSprite( 1, px,0, img ); //1 is the sprite number
                                  //px is put in as the x coordinate
                                  //0 is put in as the y coordinate
                                  //img is the image number for the sprite

That could be use for it, i guess.

The methode is there i believe.

So maybe something like:

cx = dbPositionObjectX (1)
cy = dbPositionObjectY (1)
cz = dbPositionObjectZ (1)

I am still practising with alot of tutorials, and all going good. Thought i ran to this problem yesterday and i cant seem to find it out.

Thanks in Forward,

Red Eye

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Serial Velocity

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Joined: 24th Aug 2008

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Posted: 23rd Jul 2009 14:58 Edited at: 23rd Jul 2009 14:59

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Im not really 100% sure what you're after but I have some things that may help.

If you want to position an object on an object, you use this:

int OtherObjX = dbObjectPositionX( OtherID );
int OtherObjY = dbObjectPositionY( OtherID );
int OtherObjZ = dbObjectPositionZ( OtherID );
dbPositionObject( ObjID, OtherObjX, OtherObjY, OtherObjZ );

If you want to position an image on an object, you use this instead:

dbPasteImage( dbObjectScreenX( OtherID ), dbObjectScreenY( OtherID ), ImageID );

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Mista Wilson

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Joined: 27th Aug 2008

Location: Brisbane, Australia

Posted: 23rd Jul 2009 15:01 Edited at: 23rd Jul 2009 15:02

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You seem to have almost answered your own question there lol

Quote: "- You specify the XYZ cordinates of a object lets say a cube.
- The you want that this plane is always on the same XYZ as the Cube, no matter if the Cube moves. The Plane always is on the same XYZ coordinate as the Cube.

So maybe something like:

cx = dbPositionObjectX (1)
cy = dbPositionObjectY (1)
cz = dbPositionObjectZ (1)
"

Assuming your cube is object number 1, and your plane is object number 2, you would place the plane at the same place as the cube by placing the following code inside your main loop :

+ Code Snippet

dbPositionObject(2, dbObjectPositionX(1), dbObjectPositionY(1), dbObjectPositiobZ(1));

That would make the plane(object 2) move with the cube(object 1) by placing it at the same place the cube is each game loop.

Of course, you could change the behaviour slightly by omitting or offsetting the values that you pass to dbPositionObject. You could also pass it the variables : cx, cy, cz from your post above(thought make sure they are floating point types instead of integer, it doesnt make alot of difference until you need to fine-tune your object placement, then having a real number makes a difference lol)...

EDIT : LOL too slow, seriel velocity got there first