player added

2025-09-30 10:58:12 +02:00
parent 38dccf0a84
commit 11f76ca429
11 changed files with 259 additions and 48 deletions
--- a/Entity.cs
+++ b/Entity.cs
@@ -0,0 +1,129 @@
+using OpenTK.Mathematics;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Voxel
+{
+    public class Entity
+    {
+        public Vector3 Position;
+        public Vector3 Velocity;
+        public bool OnGround;
+        public float Rotation;
+
+        public float Width;
+        public float Height;
+
+        private float _airDrag = 2f;
+        private float _groundDrag = 8f;
+
+        private World _world;
+
+        public Entity(Vector3 position, float width, float height, World world)
+        {
+            Position = position;
+            Width = width;
+            Height = height;
+
+            _world = world;
+        }
+
+        public void Tick(float deltaTime)
+        {
+            Console.WriteLine(OnGround);
+
+            if (!OnGround)
+            {
+                Console.WriteLine("Velocity: " + Velocity.Y.ToString());
+
+                Velocity -= new Vector3(
+                    Velocity.X * _airDrag * deltaTime,
+                    1.6f * deltaTime,
+                    Velocity.Z * _airDrag * deltaTime);
+
+            }
+            else
+            {
+                Velocity = new Vector3(Velocity.X, 0, Velocity.Z);
+                Velocity -= new Vector3(
+                    Velocity.X * _groundDrag * deltaTime,
+                    0,
+                    Velocity.Z * _groundDrag * deltaTime);
+            }
+
+            UpdateOnGround();
+
+            Position += Velocity;
+            Console.WriteLine("Position: " + Position.Y.ToString());
+        }
+
+        public AABB GetBoundingBox()
+        {
+            float halfWidth = Width / 2;
+
+            Vector3 min = new Vector3(
+                Position.X - halfWidth,
+                Position.Y - Height,
+                Position.Z - halfWidth
+            );
+
+            Vector3 max = new Vector3(
+                Position.X + halfWidth,
+                Position.Y + Height,
+                Position.Z + halfWidth
+            );
+
+            return new AABB(min, max);
+        }
+
+        private bool IsCollidingSide(Vector3 direction)
+        {
+            AABB box = GetBoundingBox();
+
+            // Determine which axis we’re checking
+            int checkX = direction.X > 0 ? (int)MathF.Floor(box.Max.X) : (int)MathF.Floor(box.Min.X);
+            int checkZ = direction.Z > 0 ? (int)MathF.Floor(box.Max.Z) : (int)MathF.Floor(box.Min.Z);
+
+            int minY = (int)MathF.Floor(box.Min.Y);
+            int maxY = (int)MathF.Floor(box.Max.Y);
+
+            // Sweep along vertical range
+            for (int y = minY; y <= maxY; y++)
+            {
+                if (_world.GetBlock(checkX, y, checkZ) != Blocks.Air)
+                    return true;
+            }
+
+            return false;
+        }
+
+        public void UpdateOnGround()
+        {
+            AABB box = GetBoundingBox();
+            float yCheck = box.Min.Y - 0.05f;
+
+            int minX = (int)MathF.Floor(box.Min.X);
+            int maxX = (int)MathF.Floor(box.Max.X);
+            int minZ = (int)MathF.Floor(box.Min.Z);
+            int maxZ = (int)MathF.Floor(box.Max.Z);
+
+            OnGround = false;
+            for (int x = minX; x <= maxX; x++)
+            {
+                for (int z = minZ; z <= maxZ; z++)
+                {
+                    Blocks block = _world.GetBlock(x, (int)MathF.Floor(yCheck), z);
+                    if (block != Blocks.Air)
+                    {
+                        OnGround = true;
+                        return;
+                    }
+                }
+            }
+        }
+
+    }
+}