body(options?: BodyCompOpt): BodyComp

Physical body that responds to gravity. Requires "area" and "pos" comp. This also makes the object "solid".
// bean jumpy
const bean = add([
    sprite("bean"),
    // body() requires "pos" and "area" component
    pos(),
    area(),
    body(),
])

// when bean is grounded, press space to jump
// check out #BodyComp for more methods
onKeyPress("space", () => {
    if (bean.isGrounded()) {
        bean.jump()
    }
})

// run something when bean falls and hits a ground
bean.onGround(() => {
    debug.log("oh no!")
})