Internal.Material.Protected
Materials allow to control friction and bounciness. You can change materials using Body.withMaterial.
default : Material
All bodies initially use this material, it is defined like this:
default =
custom { friction = 0.3, bounciness = 0 }
custom : { friction : Basics.Float, bounciness : Basics.Float } -> Material
Creates a custom material, e.g.
slippery =
custom { friction = 0, bounciness = 0 }
bouncy =
custom { friction = 0.3, bounciness = 0.9 }
When two materials collide, their properties are averaged and clamped between 0 and 1.