patroling

Permet à un objet de se déplacer jusqu'à ce qu'il recontre un objet

How to use

triggers on self"U-turn"

parameters

Parameter	Default Value	Type	Description
speed		number	60
direction		vec2	vec2(-1, 0)
uTrunDelay		number	0.5
startDelay		number	0.5
crossEachOther		boolean	true

example

patroling({
  speed: 60,
  direction: vec2(-1, 0),
  uTrunDelay: 0.5,
  startDelay: 0.5,
  crossEachOther: true
}),

Source

component.js

function patroling(p) {
  const param = {
    speed: 60,
    direction: vec2(-1, 0),
    uTrunDelay: 0.5,
    startDelay: 0.5,
    crossEachOther: true,
    ...p
  }
  return {
    direction: vec2(param.direction).unit(),
    resetDirection: vec2(param.direction).unit(),
    facing: 1,
    id: "partoling",
    add() {
      this.on("collide", (obj, col) => this.changeDirection(obj, col))
      this.on("respawn", () => this.direction = this.resetDirection)
      if (param.crossEachOther) this.collisionIgnore.push("partoling")
    },
    changeDirection(obj, col) {
      const l = col.isLeft() && this.direction.x < 0
      const r = col.isRight() && this.direction.x > 0
      if ((l || r) && !obj.is("player") && !obj.is("projectile")) {
        const n = this.direction.x > 0 ? -1 : 1
        if (obj.is("stopper")) tween(this.direction.x, n, param.uTrunDelay, (v) => (this.direction.x = v), easings.easeInSin)
        else tween(0, n, param.startDelay, (v) => (this.direction.x = v), easings.easeInSin)
      }
      this.trigger("U-turn")
    },
    update() {
      this.move(param.speed * this.direction.x, 0)
      if (this.direction.len() > 0.1) this.facing = this.direction.unit().x
    },
  }
}