Body mass index calculation on Scratch Program

We will make an example of the Body Mass Index Calculator program together with the scratch program. The Body Mass Index Calculation formula that we will do with the Scratch program:

Bmi = Weight (kg) / Height (meter) * Height (meter)

The codes are as follows;

Body mass index calculation on Scratch Program

First of all, we add someone as a sprite and the text that writes the body mass index calculation. Codes inside the sprite that writes body mass index calculation:

To make the text larger and smaller (Zoom effect), we enlarge the text by 10 size, wait for 1 second, and enlarge it by -10 size (ie reduction operation). You can enlarge or reduce the text as much as you want. Up to you. After hiding the text with the hide command, we release a message for our other sprite to appear on the screen.

When Start Programme command comes, our other sprite comes into play and appears. After it appears, the User is prompted to enter his height in centimeters. We do this with the ask and wait command from the sensing menu. The value entered by the user is kept in the response command in the sensing menu. We transfer this value to the height variable that we created from the variable menu before. Since height is in meters and its square will be taken from the calculation formula, we divide the entered centimeter value, that is, the value kept in the response command, by 100 and transfer the obtained value into the variable with height meters. After doing the height work, it was time for the user to take his weight. Again, we use the ask and wait command in the detection menu. Here, we assign the value kept in the response command to the Weight(kg) variable. BMI=weight/height meters*height meters To apply this formula, we get the division command in the operators menu. We place the weight variable in the left part. In the right part, we add the multiplication command. We assign the height meter variable to the right and left parts. Thus, the value obtained as a result of the process is assigned to the value in the body mass index variable. Now it's time to tell whether the person is underweight, overweight or obese according to the BMI value we have. For this, we use the if command in the Control menu. If the person's BMI value is less than the standard value or is in that range, we write the BMI that falls within that range.

To download the source code of the program CLICK HERE

To see the running version of the program CLICK HERE

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