Major refactor and organization, optimizations to chunk, world and renderer

2026-03-24 22:31:40 +01:00
parent dbc546fd0e
commit eb6294c09e
25 changed files with 410 additions and 441 deletions
--- a/Entities/Entity.cs
+++ b/Entities/Entity.cs
@@ -0,0 +1,118 @@
+using OpenTK.Mathematics;
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Voxel.Core;
+using Voxel.Physics;
+
+namespace Voxel.Entities
+{
+    public class Entity
+    {
+        public Vector3 Position;
+        public Vector3 Velocity;
+        public bool OnGround;
+        public float Rotation;
+
+        public float Width;
+        public float Height;
+
+        private float _gravity = 0.08f;
+        private float _terminalVelocity = -3.92f;
+        private float _airMultiplier = 0.91f;
+        private float _yMultiplier = 0.98f;
+        private float _groundMultiplier = 0.6f;
+
+        protected World _world;
+
+        public Entity(Vector3 position, float width, float height, World world)
+        {
+            Position = position;
+            Width = width;
+            Height = height;
+            _world = world;
+        }
+
+        public void Tick()
+        {
+            Move();
+
+            if (!OnGround)
+            {
+                Vector3 acceleration = new Vector3(0, -_gravity, 0);
+                Velocity += acceleration;
+                Velocity.X *= _airMultiplier;
+                Velocity.Z *= _airMultiplier;
+                Velocity.Y *= _yMultiplier;
+
+
+                if (Velocity.Y < _terminalVelocity)
+                {
+                    Velocity.Y = _terminalVelocity;
+                }
+            }
+            else
+            {
+                Velocity = new Vector3(Velocity.X * _groundMultiplier, 0f, Velocity.Z * _groundMultiplier);
+            }
+        }
+
+        public void Move()
+        {
+            Vector3 moveVector = Velocity;
+            Vector3 originalVector = moveVector;
+
+            AABB body = AABB.FromCenter(Position, Width, Height, Width);
+
+            List<AABB> collisionChecks = _world.GetColliders(body.Expand(Velocity.X, Velocity.Y, Velocity.Z).Grow(1,1,1));
+
+            foreach (AABB collider in collisionChecks)
+            {
+                moveVector.X = body.GetClipX(collider, moveVector.X);
+            }
+
+            body.Move(moveVector.X, 0, 0);
+
+            foreach (AABB collider in collisionChecks)
+            {
+                moveVector.Y = body.GetClipY(collider, moveVector.Y);
+            }
+
+            body.Move(0, moveVector.Y, 0);
+
+            foreach (AABB collider in collisionChecks)
+            {
+                moveVector.Z = body.GetClipZ(collider, moveVector.Z);
+            }
+
+            body.Move(0, 0, moveVector.Z);
+
+            if (moveVector.X != originalVector.X)
+            {
+                Velocity.X = 0;
+            }
+
+            if (moveVector.Y != originalVector.Y)
+            {
+                Velocity.Y = 0;
+            }
+
+            if (moveVector.Z != originalVector.Z)
+            {
+                Velocity.Z = 0;
+            }
+
+            OnGround = moveVector.Y != originalVector.Y && originalVector.Y < 0;
+
+            Position = body.GetCenter();
+        }
+
+        public void ApplyImpulse(Vector3 force)
+        {
+            Velocity += force;
+        }
+    }
+}