SetSpritePhysicsGravityScale
Description
Sets the gravity scale for the sprite. 
Definition
 SetSpritePhysicsGravityScale ( iSpriteIndex, scale ) 
void agk::SetSpritePhysicsGravityScale ( UINT iSpriteIndex, float scale )
Parameters
- iSpriteIndex - The ID of the sprite to modify.
 - scale - scaling value for the gravity.