mr-crocs-adventures/js/Movable.js

import GeometryPoint from "./geometry/GeometryPoint.js";

export default class Movable
{
    constructor(defaultAnimation, speed = 1)
    {
        this.currentAnimation = 'DEFAULT';
        this.animations = {
            DEFAULT: defaultAnimation,
        };
        this.position = new GeometryPoint();
        this.speed = speed;
        this.jumpHeight = 35;
        this.fallSpeed = 0;
    }

    playAnimation(animation, timestamp)
    {
        this.currentAnimation = animation;
        this.animations[animation].play(timestamp);
    }

    addAnimation(name, animation)
    {
        this.animations[name] = animation;
    }

    moveLeft(delta = 1)
    {
        this.position.x -= this.speed * delta;
    }

    moveRight(delta = 1)
    {
        this.position.x += this.speed * delta;
    }

    getRect()
    {
        return this.animations[this.currentAnimation].getRect();
    }

    getWidth()
    {
        return this.getRect().width;
    }

    getHeight()
    {
        return this.getRect().height;
    }

    getPositionFootLeft()
    {
        return new GeometryPoint(
            this.position.x - this.animations[this.currentAnimation].getWidth() * 0.5, this.position.y
        );
    }

    getPositionFootRight()
    {
        return new GeometryPoint(
            this.position.x + this.getWidth() * 0.5, this.position.y
        );
    }

    getPositionHeadLeft()
    {
        return new GeometryPoint(
            this.position.x - this.animations[this.currentAnimation].getWidth() * 0.5,
            this.position.y - this.animations[this.currentAnimation].getHeight()
        );
    }

    getPositionHeadRight()
    {
        return new GeometryPoint(
            this.position.x + this.getWidth() * 0.5,
            this.position.y - this.animations[this.currentAnimation].getHeight()
        );
    }

    jump()
    {
        this.fallSpeed -= this.jumpHeight;
        this.isJumping = true;
    }

    getFootHeight()
    {
        return new GeometryPoint(
            this.position.x,
            this.position.y + this.animations[this.currentAnimation].getHeight()
        );
    }

    setFootHeight(height)
    {
        this.position.y = height - this.animations[this.currentAnimation].getHeight();
    }

    draw(context)
    {
        this.animations[this.currentAnimation].setFootPosition(this.position.x, this.position.y);
        this.animations[this.currentAnimation].draw(context);
    }
}