Note: If you’d like, feel free to reply with what you think the benefits of this block could be, or how you might use it in your projects!

Hello! I have a suggestion for a new operators block that could be really helpful for math-based projects. The idea is a “percentage between” block that calculates the percentage of the distance between two numbers. Here's how it would work:

The block would look like this:

(50) % between (1) and (5) :: operators reporter

For example,

(50) % between (1) and (5) :: operators reporter : // would return 3 (the midpoint).

(25) % between (1) and (5) :: operators reporter : // would return 2 (a quarter of the way).

This block would simplify the process of calculating midpoints and percentages without needing to manually use formulas like:

(((x) + (y)) / (2))

Example use:

when green flag clicked
forever
go to ((50) % between ([x position v] of (red ball v)) and ([x position v] of (blue ball v)) :: operators)
end

It would be a great tool for anyone working with animations, game mechanics, or even math lessons. Let me know what you think!

You don’t need different formulae for each percentage:

jmdzti_0-0 wrote:

You don’t need different formulae for each percentage:

Oh, I didn't know that!

also: 25% of (1+5) is 1.5, not 2.

i think that would be used for gambl games, no support

aaliyaan0110 wrote:

i think that would be used for gambl games, no support

well, the

(pick random (0) to (10))

block can also be used to make gambling games and it’s still there as far as i know. don’t bring up ridiculous arguments to not support.

anyways, i think gambling games ARE allowed on scratch as long as they don’t involve real money and whatnot (* i am using that word way too much today). you can’t monetize projects on scratch at all

jmdzti_0-0 wrote:

also: 25% of (1+5) is 1.5, not 2.

This block calculates a given percentage of the range between two numbers, not their sum.

Bump.

aaliyaan0110 wrote:

i think that would be used for gambl games, no support

This block calculates a given percentage of the range between two numbers, not calculate a chance.

In programming, this operation is usually called lerp (linear interpolation), and the formula is a + (b-a) * percentage/100 (or instead of percentage/100, a parameter t that goes between 0 and 1.0). I think it was suggested a few times before, but I honestly think your phrasing of the block is more beginner-friendly.

ignore this post

jmdzti_0-0 wrote:

Quantum-Cat wrote:

In programming, this operation is usually called lerp (linear interpolation), and the formula is a + (b-a) * percentage/100 (or instead of percentage/100, a parameter t that goes between 0 and 1.0). I think it was suggested a few times before, but I honestly think your phrasing of the block is more beginner-friendly.

a + (b-a) is just b

With the formula given in that post, you cannot do that. You have to follow order of operations

jmdzti_0-0 wrote:

Quantum-Cat wrote:

In programming, this operation is usually called lerp (linear interpolation), and the formula is a + (b-a) * percentage/100 (or instead of percentage/100, a parameter t that goes between 0 and 1.0). I think it was suggested a few times before, but I honestly think your phrasing of the block is more beginner-friendly.

a + (b-a) is just b

you're not accounting for the order of operations, it's a + ((b-a) * percentage/100) (which you can't simplify further)

Bump.

how is everybody good at math

aaliyaan0110 wrote:

how is everybody good at math

I hope the block is NOT too complex for Scratch.

Bump.

Toodchop wrote:

Bump.

Bump.

Toodchop wrote:

Toodchop wrote:

Bump.

Bump.

Bump.

Just curious, what are some practical uses for this block? In particular, you mention animations and game mechanics, but what specifically can this block be used for in those instances?