Implementation and demo of the Smoothstep and Smootherstep easing functions.
See https://en.wikipedia.org/wiki/Smoothstep for more info.
Feel free to copy the functions into your own carts and tweak them as you need.
1
Nice, a very concise little demo.
Just FYI, the ^ operator on PICO-8 is quite a bit more expensive than multiplication. Think of it as a pow() function rather than an intrinsic operator. So both x*x and x*x*x are considerably less than the cost of x^2 and x^3.
Honestly, I wish the Lua parser would just catch the power being a very low whole number and replace it with the appropriate number of multiplies, but it doesn't.
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