climbController

Permet à un joueur de grimper sur certains objets

How to use

triggers on self"moved""climb start""climb jump""climb stop"

parameters

Parameter	Default Value	Type	Description
upKey		string	'up'
downKey		string	'down'
climbSpeed		number	400
climbJump		number	600
delay		number	0.05
sticky		boolean	true
catch		boolean	true

example

climbController({
  upKey: 'up',
  downKey: 'down',
  climbSpeed: 400,
  climbJump: 600,
  delay: 0.05,
  sticky: true,
  catch: true
}),

Source

component.js

function climbController(p) {
  const param = {
    upKey: 'up',
    downKey: 'down',
    climbSpeed: 400,
    climbJump: 600,
    delay: 0.05,
    sticky: true,
    catch: true,
    ...p,
  };
  return {
    onLadder: false,
    savedTimeOnLadder: 0,
    isClimbing: false,
    add() {
      this.onCollideUpdate('climb', () => (this.savedTimeOnLadder = time()));
      onKeyDown(param.upKey, () => this.climb(-1));
      onKeyDown(param.downKey, () => this.climb(1));
      this.on('climb start', () => {
        this.gravityScale = 0;
        this.vel = vec2(0, 0);
        this.isClimbing = true;
      });
      this.on('climb stop', () => {
        this.isClimbing = false;
        this.gravityScale = 1;
      });
      this.on('climb jump', () => this.jump(param.climbJump));
    },
    climb(d) {
      if (this.isAlive && this.isClimbing && this.onLadder) {
        this.move(0, d * param.climbSpeed);
        this.trigger('moved');
      }
    },
    update() {
      this.onLadder = time() - this.savedTimeOnLadder < param.delay;
      if (
        !this.isClimbing &&
        this.isAlive &&
        this.onLadder &&
        (param.sticky || isKeyDown(param.upKey))
      )
        this.trigger('climb start');
      else if (this.isClimbing && !this.onLadder) {
        if (isKeyDown(param.upKey)) this.trigger('climb jump');
        this.trigger('climb stop');
      } else if (this.isClimbing && this.isGrounded())
        this.trigger('climb stop');
      else if (this.isClimbing && !param.catch && !isKeyDown(param.upKey))
        this.trigger('climb stop');
    },
  };
}