stock Float:PointAngle(playerid, Float:xa, Float:ya, Float:xb, Float:yb)  
{  
     new Float:carangle;  
     new Float:xc, Float:yc;  
     new Float:angle;  
     xc = floatabs(floatsub(xa,xb));  
     yc = floatabs(floatsub(ya,yb));  
     if (yc == 0.0 || xc == 0.0)  
     {  
         if(yc == 0 && xc > 0) angle = 0.0;  
         else if(yc == 0 && xc < 0) angle = 180.0;  
         else if(yc > 0 && xc == 0) angle = 90.0;  
         else if(yc < 0 && xc == 0) angle = 270.0;  
         else if(yc == 0 && xc == 0) angle = 0.0;  
     }  
     else  
     {  
         angle = atan(xc/yc);  
         if(xb > xa && yb <= ya) angle += 90.0;  
         else if(xb <= xa && yb < ya) angle = floatsub(90.0, angle);  
         else if(xb < xa && yb >= ya) angle -= 90.0;  
         else if(xb >= xa && yb > ya) angle = floatsub(270.0, angle);  
     }  
     GetVehicleZAngle(GetPlayerVehicleID(playerid), carangle);  
     return floatadd(angle, -carangle);  
}