[AbyssMorgan]

This algorithm working only for 2D orientation.

PHP код:

for(new i = 1, j = Streamer_GetUpperBound(STREAMER_TYPE_OBJECT); i <= j; i++){
    if(IsValidDynamicObject(i)){
        new Float:offset_x,Float:offset_y,Float:offset_z,
            Float:ox,Float:oy,Float:oz,
            Float:tx,Float:ty,Float:tz,
            Float:dist;
    
        GetDynamicObjectPos(i,ox,oy,oz);
        ShiftPositionToOffset(3400.0,0.0,0.0,    0.0,0.0,0.0,    offset_x,offset_y,offset_z,    ox,oy,oz); //started position
        
        dist = VectorSize(offset_x,offset_y,offset_z);
        
        ShiftVectorRotation(offset_x,offset_y,offset_z,    0.0,0.0,180.0,    tx,ty,tz); //new rotation here
        
        tx *= dist;
        ty *= dist;
        tz *= dist;
        
        ShiftOffsetToPosition(3200.0,0.0,0.0,    0.0,0.0,0.0,    tx,ty,tz,    ox,oy,oz); //new position
        SetDynamicObjectPos(i,ox,oy,oz);
        
        GetDynamicObjectRot(i,ox,oy,oz);
        SetDynamicObjectRot(i,ox,oy,oz+180.0); //new rotation here
    }
} 


In this example:
old pos: 3400.0,0.0,0.0
old: rz: 0.0

new pos: 3200.0,0.0,0.0
new rz: 180.0

Libs:
3DTryg.inc