bouncingBall

Permet à un objet de se déplacer et de rebondir

How to use

parameters

Parameter	Default Value	Type	Description
direction		vec2	vec2(0, 0)
speed		number	0
bouncing		number	0.8
friction		number	0.4
detuneAmp		number	400

example

bouncingBall({
  direction: vec2(0, 0),
  speed: 0,
  bouncing: 0.8,
  friction: 0.4,
  detuneAmp: 400
}),

Source

component.js

function bouncingBall(p) {
  const param = {
    direction: vec2(0, 0),
    speed: 0,
    bouncing: 0.8,
    friction: 0.4,
    detuneAmp: 400,
    ...p
  }
  return {
    id: "bouncing ball",
    currentSpeed: 1,
    currentDirection: param.direction,
    add() {
      this.onCollide("body", (obj, col) => {
        let m = vec2(1, 1)
        if (col.isTop() || col.isBottom()) m = vec2(1, -1)
        else if (col.isLeft() || col.isRight()) m = vec2(-1, 1)
        if (col.isBottom()) this.jump(this.currentSpeed * param.speed)
        this.currentDirection = this.currentDirection.scale(m)
        this.currentSpeed = this.currentSpeed * param.bouncing
        this.currentVolume = this.currentVolume * param.bouncing
        this.trigger("bounce", { volume: this.currentSpeed, detune: this.currentSpeed * param.detuneAmp })
      })
    },
    update() {
      this.move(this.currentDirection.scale(this.currentSpeed * param.speed))
      if (this.isGrounded()) this.currentSpeed -= this.currentSpeed * param.friction * dt()
    },
  }
}