# Calc Example

Let's consider an example of a robot that demonstrates the use of indexes in the selector for random calculations in a calculator. This robot generates a random number, which corresponds to the button it will click in the calculator interface.

The robot project consists of a single diagram, which looks as follows (for convenience, the blocks of the diagram are numbered):

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXfiTHXDaz-CrPKL5piGUPI2SzvJZACtLFosuUgBcTZmXjQlE_MIFdjk92PGOm-LH9kdd7lfoo9WRs-mpkgiulFghA15vPoOlp56OdBfFl0juBeUK5gGiCio1T_imrckKYF9zMkm41HOYNIS74hMyHdfr_I?key=0IUVWPWjCJo2wp2B7nwtag" alt=""><figcaption></figcaption></figure>

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXc_2Oyy_j5WHN576XJCV9KWKpYYoNLmJ_sCs7ag7OpeKGGEVfM4sSOzyBHh4FRB-ih8jWUk5yzjwHiy9P6Ws7whHSo7SFFBgyGPGhf2WokBeXQdiwAjhlHP3FyYbhoqkcZ_m9lJ_XGUhW2v5wv7ITZKLtr-?key=0IUVWPWjCJo2wp2B7nwtag" alt=""><figcaption></figcaption></figure>

1. **Block "Start"** (this block is where any diagram begins).
2. **Block "Launch Application"** launches the specified application with the given parameters. The following properties are specified for this block:

* Application Path (the path to the application being launched);
* Wait for Launch (the set flag pauses the script until the specified application is fully launched);
* Selector (allows you to interactively select the application that will be launched using the selector).

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXd6KTcLlSHgdkP02UoW-iX3vYu6zk1XbtBaTra4hr2S30SpsvEwQZNaSdTFpbkffMYwWoi7kTiu9ZQFuR7ENNoXQ-GW5RNP0Vl1YptUOBVB2XW8baLyFULeqb-SaoL8yWGYOIet8rXSLm_bnGHkbRvYHNAj?key=0IUVWPWjCJo2wp2B7nwtag" alt=""><figcaption></figcaption></figure>

3. **Block "Pause"** pauses the execution of the script for a specified time. The following properties are specified for this block:

* Unit of Measurement (the unit of measurement in which the duration of the pause is specified);
* Duration (the number of seconds for which the script will be paused).

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXc5n-J7tyZ8Nh-tzqLd_B6npnjieZeQyog_9YF8nO9Yd4wmn6zTzH_3nbFv0-B7puflSs-WTOQ2PPJ2qjkEnZS2kFvje6GofmVjxg6nXpLuEYEv4mgMt3-12zurtgU0kKQ3sJz5IaRmQC9yNaBROdDpjL9E?key=0IUVWPWjCJo2wp2B7nwtag" alt=""><figcaption></figcaption></figure>

4. **Block "Random Number"** generates a random number with specified parameters. The following properties are specified for this block:

* Min. Value (the minimum value for the random number);
* Max. Value (the maximum value for the random number);
* Step (the step for the random number).

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXdvTtuU4RRAWFqjmzRztrAB6iNC4VGMbUZOZ2BKt3asm3pURa0m5a5blENAylayJzTkYSboODhc4QKrd_IkUOFKc3CBPSKPkEFhrQN1RMMjUflvLaXQBGrWInVINKfwpoALYVCDQJ9FQjdRAE5mGHyCZGIT?key=0IUVWPWjCJo2wp2B7nwtag" alt=""><figcaption></figcaption></figure>

5. **Block "Assign Value to Variable"** sets new values for one or more variables. In this case, one value is specified in the properties that needs to be assigned to a specific variable.

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXdCrFoLghURIEz5AZZJZye9AILjEhBb5GPrTUzxJy7S5BBs4zqnbiDvVh699JQwDddhfFHAv8aj3TRRphM7eqDacmDDOMfqFDFJKkl1XUfrx6aX2BQ_C3jUOMuD78vGFPrKiHB42yCbK2QIrxzqYlb1THsZ?key=0IUVWPWjCJo2wp2B7nwtag" alt=""><figcaption></figcaption></figure>

6. **Blocks "Click Mouse"** perform a click on the specified element of the application. Selectors are used for these blocks.

In the first selector, a click occurs on the button with the number that was obtained earlier through the "Random Number" block.\
In the second selector, a click occurs on the addition button (+).

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXfbeRJBRPzAg_S7EvXLeL3L8dVP07MIIExZN0nYw_byE8STF2tjguXRvhpOnHLia9BJL5brOGOjZuWX20J5Pw-GHQ8li4oQQdlCUhWYFqLs7yxFZb9eHgD70Z1iXPPoPm45JsYOkR6224tH0gEcqbBNm2zN?key=0IUVWPWjCJo2wp2B7nwtag" alt=""><figcaption></figcaption></figure>

7. **Block "Random Number"** generates a random number with specified parameters. The following properties are specified for this block:

* Min. Value (the minimum value for the random number);
* Max. Value (the maximum value for the random number);
* Step (the step for the random number).

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXfJ7Krr-ru5BcxmMi10TDqkF1g7u2aBGFa0JlwhvVU87TScR2Gk7DdfIUsspGXtT8Hii2W62vynB1D-xaCc1kZCuj0NjrK1cJ8I3Fk7Uqdqwn0HnTld7r8UMPhIX2BQ9waZn_dVSM_6Cd0vvUhq2knA9daY?key=0IUVWPWjCJo2wp2B7nwtag" alt=""><figcaption></figcaption></figure>

8. **Block "Assign Value to Variable"** sets new values for one or more variables. In this case, one value is specified in the properties that needs to be assigned to a specific variable.

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXcObw--oX5jNWXDZZbkkjICKF1Xp-aHeH2Swr2Pfzj1gR5LtRaKHFQlKvgeEAVJU5LMNiePN2rGOmkS4FMb4QrKewZsWn0tFxUdRirL6051UjRwmSrsuwtruYIV36IR1AzGpcG-MXxfmm6U4AloRvax2-Bf?key=0IUVWPWjCJo2wp2B7nwtag" alt=""><figcaption></figcaption></figure>

9. **Blocks "Click Mouse"** perform a click on the specified element of the application. Selectors are used for these blocks.

In the first selector, a click occurs on the button with the number that was obtained earlier through the "Random Number" block.\
In the second selector, a click occurs on the addition button (+).

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXd0oUDinR5XLbOsWqUYv4FLeEPPJyry3wTzshV42hAvKhWBgDYnlJ3LmI8a3KlGaYohkvF1Xd-lF3h1iuLGjE8z__-LJDBW4uUyLQtYdq3Gnc9RWrPeqf_c3K9eW7oJAWSTQUu1syautwi9yq-Qi-1Oj9cU?key=0IUVWPWjCJo2wp2B7nwtag" alt=""><figcaption></figcaption></figure>

10. **Block "Pause"** pauses the execution of the script for a specified time. The following properties are specified for this block:

* Unit of Measurement (the unit of measurement in which the duration of the pause is specified);
* Duration (the number of seconds for which the script will be paused).

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXc5n-J7tyZ8Nh-tzqLd_B6npnjieZeQyog_9YF8nO9Yd4wmn6zTzH_3nbFv0-B7puflSs-WTOQ2PPJ2qjkEnZS2kFvje6GofmVjxg6nXpLuEYEv4mgMt3-12zurtgU0kKQ3sJz5IaRmQC9yNaBROdDpjL9E?key=0IUVWPWjCJo2wp2B7nwtag" alt=""><figcaption></figcaption></figure>

11. **Block "Press Keys"** emulates key presses on the keyboard. The following properties are specified for this block:

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXcVFPkn_FThG7Tu-4-T686OJJx4W0nqWHAAYPAM8ZGof5Ke1RLzL5nJxlhDPDUrWIcBq556odG6-G5IluVvNhtddJMkqzDpK1QZIBJSjTLNiJ7ODLKB9R2di9sOQ_ntrqVEvZaC_og1kFA1DrotRRqUK_cU?key=0IUVWPWjCJo2wp2B7nwtag" alt=""><figcaption></figcaption></figure>

12. **Block "End"** (this block concludes the execution of the script or returns the subprocess diagram to the main process).


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