GreatSpringGameJam/GreatSpringGameJam/Entity.cs

using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using MLEM.Extensions;
using MLEM.Startup;
using MLEM.Textures;
using RectangleF = MonoGame.Extended.RectangleF;

namespace GreatSpringGameJam {
    public class Entity {

        public static readonly UniformTextureAtlas StuffTexture = new(MlemGame.LoadContent<Texture2D>("Textures/Stuff"), 8, 8);
        protected static readonly Random Random = new();

        public readonly Map Map;
        public Vector2 Position;

        public Entity(Map map, Vector2 position) {
            this.Map = map;
            this.Position = position;
        }

        public virtual void Update(GameTime time) {
        }

        public virtual void Draw(GameTime time, SpriteBatch batch) {
        }

        protected void Collide(Func<RectangleF> getArea, ref Vector2 velocity, out bool onGround) {
            onGround = false;
            foreach (var (normal, penetration) in this.Map.Collisions.GetPenetrations(getArea)) {
                if (penetration.Equals(0, 0.015F))
                    continue;
                this.Position -= normal * penetration;
                velocity *= new Vector2(Math.Abs(normal.Y), Math.Abs(normal.X));
                if (normal.Y > 0)
                    onGround = true;
            }
        }

    }
}