Thanks !
but i tried that and the other line that changes to corners = { } or the other way
corners = {Vec3(), Vec3(), Vec3(), Vec3()}
and then it gives an error at the start of this near = :
--// corners = position + left/right offset + forward + right
corners[ 0 ] = pos + ( rht * footOffset ) + ( fwd * footprintSize.y * 0.5 ) + ( -rht * footprintSize.x * 0.5 ); // Upper Left
corners[ 1 ] = pos + ( rht * footOffset ) + ( fwd * footprintSize.y * 0.5 ) + ( rht * footprintSize.x * 0.5 ); // Upper Right
corners[ 2 ] = pos + ( rht * footOffset ) + ( -fwd * footprintSize.y * 0.5 ) + ( -rht * footprintSize.x * 0.5 ); // Lower Left
corners[ 3 ] = pos + ( rht * footOffset ) + ( -fwd * footprintSize.y * 0.5 ) + ( rht * footprintSize.x * 0.5 ); // Lower Right