A Bézier curve is a parametric curve used in computer graphics and related fields.wikipedia

links:

• pygame: https://www.pygame.org/docs/ref/gfxdraw.html#pygame.gfxdraw.bezier
• neat online calculator (javascript): https://www.desmos.com/calculator/v5n8k3aq9v
• wikipedia: https://en.wikipedia.org/wiki/B%C3%A9zier_curve