throwBall

Permet à un objet de lancer une balle lorsqu'un joueur appuie sur shootKey

How to use

parameters

Parameter	Default Value	Type	Description
speed		number	800
margin		vec2	vec2(40, 40)
duration		number	4
fadeDuration		number	0.4
bouncing		number	0.8
friction		number	0.4
detuneAmp		number	400

example

throwBall({
  speed: 800,
  margin: vec2(40, 40),
  duration: 4,
  fadeDuration: 0.4,
  bouncing: 0.8,
  friction: 0.4,
  detuneAmp: 400
}),

Source

component.js

function throwBall(p) {
  const param = {
    speed: 800,
    margin: vec2(40, 40),
    duration: 4,
    fadeDuration: 0.4,
    bouncing: 0.8,
    friction: 0.4,
    detuneAmp: 400,
    ...p
  }
  return {
    id: "throwBall",
    add() {
      this.on("throw", (facing = 1) => {
        if (this.isAlive) {
          const dir = vec2(facing, -0.5)
          const x = this.pos.x + param.margin.x * facing
          const y = this.pos.y - param.margin.y
          ball = add([
            sprite("ball"),
            pos(x, y),
            lifespan(param.duration, { fade: param.fadeDuration }),
            area(),
            body(),
            bouncingBall({ ...param, ...{ direction: dir } }),
            anchor("center"),
            opacity(),
            "projectile",
          ])
        }
      })
    },
  }
}