3D geometry: SetObjectToOrigin

       Name: SetObjectToOrigin                                       [Show more]
       Type: Subroutine
   Category: 3D geometry
    Summary: Set an object's coordinates to (0, 0, 0)
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * FireGuns calls SetObjectToOrigin
             * ResetRadar calls SetObjectToOrigin


 Arguments:

   Y                    The ID of the object to set to (0, 0, 0)


.SetObjectToOrigin

 LDA #0                 \ Zero the object's x-coordinate
 STA xObjectLo,Y
 STA xObjectHi,Y

 STA yObjectLo,Y        \ Zero the object's y-coordinate
 STA yObjectHi,Y

 STA zObjectLo,Y        \ Zero the object's z-coordinate
 STA zObjectHi,Y

 RTS                    \ Return from the subroutine