Scripts: Rotating text

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Rotating text:

Easy example working with object: object creation, modification properties, redraw chart.

Author: MetaQuotes Software Corp.

 

Code with minor adjustments: Resetting angle after reaching 360 degrees ensures that the rotation angle will always be within the 0-360 degree range. Securing index from exceeding the data range prevents potential errors when trying to access data outside the bounds of the array. 

//+------------------------------------------------------------------+

//|                                                       rotate_text.mq4 |

//|           Copyright © 2004, MetaQuotes Software Corp. |

//|                                   http://www.metaquotes.net/ |

//+------------------------------------------------------------------+

#property copyright "Copyright © 2004, MetaQuotes Software Corp."

#property link      "http://www.metaquotes.net/"



//+------------------------------------------------------------------+

//| script program start function                                    |

//+------------------------------------------------------------------+

int start()

  {

   int    angle=0;

   int    index=0;

   double price;

   int    k=1;

//----

   price=Low[index];

   ObjectCreate("rotating_text", OBJ_TEXT, 0, Time[index], price);

   ObjectSetText("rotating_text", "Up...", 20);

   ObjectSet("rotating_text", OBJPROP_TIME1, Time[index]);

   ObjectSet("rotating_text", OBJPROP_PRICE1, price);

   ObjectSet("rotating_text", OBJPROP_COLOR, Green);

   

   while(true)

     {

      index += k;

      

      // Prevent going out of bounds of available data

      if(index < 0) index = 0;

      if(index >= Bars) index = Bars - 1;



      ObjectMove("rotating_text", 0, Time[index], price + index * 0.0001);

      ObjectSet("rotating_text", OBJPROP_ANGLE, angle);

      ObjectsRedraw();

      

      angle += 30;

      if(angle >= 360) angle = 0;  // Reset the angle after a full rotation

      

      if(index > 20)

       {

        k = -1;

        ObjectSetText("rotating_text", "...and Down", 20);

        ObjectSet("rotating_text", OBJPROP_COLOR, IndianRed);

       }

      

      if(index == 0)

       {

        k = 1;

        ObjectSetText("rotating_text", "Up...", 20);

        ObjectSet("rotating_text", OBJPROP_COLOR, Gold);

       }  

      

      Sleep(100);

     }

   

   return(0);

  }

//+------------------------------------------------------------------+
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