movingBackAndForth

Permet à un objet de déplacer dans une direction puis dans le sens inverse en recontrant un objet "stopper"

How to use

triggers on self"U-turn"

parameters

Parameter	Default Value	Type	Description
direction		vec2	vec2(1, 0)
speed		number	100
switchDelay		number	1

example

movingBackAndForth({
  direction: vec2(1, 0),
  speed: 100,
  switchDelay: 1
}),

Source

component.js

function movingBackAndForth(p) {
  const param = {
    direction: vec2(1, 0),
    speed: 100,
    switchDelay: 1,
    ...p
  }
  return {
    direction: vec2(param.direction).unit(),
    facing: 1,
    add() {
      this.onCollide("stopper", () => {
        tween(
          this.direction,
          this.direction.scale(-1),
          param.switchDelay,
          (v) => (this.direction = v),
          easings.easeOutSine
        )
        this.trigger("U-turn")
      })
    },
    update() {
      this.move(this.direction.scale(param.speed))
      if (this.direction.len() > 0.1) this.facing = this.direction.unit().x
    },
  }
}