c ++ – How do I add a speed reedout to my game in meters per second?

I am playing a boat racing game and I would like to display the speed of my boats in m / sec but I don't know how to do it. I move my boat by frametime and my Moentum vector which is based on the thrust, drag and previous monetum of my boat.

I wonder if I should calculate the length | v | of my Moentum vector, i.e. sqrt (momentumX * momentumX + momentumZ * momentumZ) and the multiplication * frametime and * set scale

The defined scale being a value that I defined for my game for example. 1 game unit: 1 meter. Would that represent an approximation of my speed in meters per second or should I multiply the | v | momentum by frames per second instead? Any help would be appreciated.

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YouTube: add subtitles to another user's video

Is there a way to create subtitles and make a pull-request to the downloader to add them?

Thank you!

personalization – custom theme, add media not showing images in media library

I am a beginner in theme development, I created a theme following an online tutorial. when i try to add pictures in a message using the Add Media button, it opens but shows no pictures, the loader continues to run. But accessing the media library directly shows that there are pictures in it.
What am I forgetting here? changing the theme to one of the wordpress themes corrects the problem, but i would use my theme.

How to add the plugin version update option in the action of the plugin line?

I want to add a version update option in the activation line of the wp plugin.

Please get the attached link https://prnt.sc/rrfgcq

$path = plugin_basename( __FILE__ );
add_action('after_plugin_row_{$path}' array( $this, 'call_back_plugin_row_action ' ), 10, 3);

function call_back_plugin_row_action ( $plugin_file, $plugin_data, $status ) {
echo '
         
        Some Description for update
       ';

}

I used this code but nothing is displayed .. check here https://prnt.sc/rrgbf5
cordially

Mainuddin

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How to add mass emails in many projects?

Hello,

I want to replace emails in many projects together.
How can I do this:
– select several projects
– add 3 emails to each project by selecting a large file with many emails

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Sharepoint 2013 – How to add an Expand / Collapse button for 2 levels of grouping

I am not a coder. I have a FAQ page which is a list view with Newsletter style. There are 2 levels of grouping used: 1. Category 2. Question.

I'm looking to add a toggle button or 2 buttons to Expand All and Collapse All.
I tried to use some codes from the net, but it looks like they only work with 1 grouping layer or that they don't expand or collapse a partially open list.

If anyone has a solution for this, help us!

How can I add fields from a database with for loop?

Don't know how to add fields from a database with for loop