pyscript/examples/mario/js/entity.js

(function () {
    if (typeof Mario === "undefined") window.Mario = {};

    var Entity = (Mario.Entity = function (options) {
        this.vel = [0, 0];
        this.acc = [0, 0];
        this.standing = true;
        this.pos = options.pos;
        this.sprite = options.sprite;
        this.hitbox = options.hitbox;
        this.left = false;
    });

    Entity.prototype.render = function (ctx, vX, vY) {
        this.sprite.render(ctx, this.pos[0], this.pos[1], vX, vY);
    };

    Entity.prototype.collideWall = function (wall) {
        //the wall will always be a 16x16 block with hitbox = [0,0,16,16].
        if (this.pos[0] > wall.pos[0]) {
            //from the right
            this.pos[0] = wall.pos[0] + wall.hitbox[2] - this.hitbox[0];
            this.vel[0] = Math.max(0, this.vel[0]);
            this.acc[0] = Math.max(0, this.acc[0]);
        } else {
            this.pos[0] =
                wall.pos[0] + wall.hitbox[0] - this.hitbox[2] - this.hitbox[0];
            this.vel[0] = Math.min(0, this.vel[0]);
            this.acc[0] = Math.min(0, this.acc[0]);
        }
    };

    Entity.prototype.bump = function () {};
})();