Init

2022-05-12 11:02:58 +02:00
parent c147e5baea
commit 1429a95243
109 changed files with 9123 additions and 0 deletions
@@ -0,0 +1,137 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.Data.Common;
+using UnityEngine;
+
+public class Chunk
+{
+    //basic
+    private Material material;
+    private ChunkCoord chunkPosition;
+    private World world;
+    
+    //rendering
+    public GameObject gameObject;
+    private MeshFilter meshFilter;
+    private MeshRenderer meshRenderer;
+
+    //data
+    private List<Vector3> vertices = new List<Vector3>();
+    private List<Vector2> uv = new List<Vector2>();
+    private List<int> triangles = new List<int>();
+    public byte[,,] blocks;
+    private int triangleIndex = 0;
+    
+    //physics
+    private MeshCollider collider;
+
+    public Chunk(Material material, ChunkCoord chunkPosition, World world, byte[,,] blocks)
+    {
+        this.blocks = blocks;
+        this.material = material;
+        this.chunkPosition = chunkPosition;
+        this.world = world;
+    }
+    
+
+    //initializes the chunks components
+    public void Initialize()
+    {
+        gameObject = new GameObject(chunkPosition.x + ", " + chunkPosition.z);
+        gameObject.transform.position =
+            new Vector3(chunkPosition.x * Data.chunkWidth, 0, chunkPosition.z * Data.chunkWidth);
+        meshFilter = gameObject.AddComponent<MeshFilter>();
+        meshRenderer = gameObject.AddComponent<MeshRenderer>();
+        collider = gameObject.AddComponent<MeshCollider>();
+    }
+
+    public void AddBlocks()
+    {
+        for (int y = 0; y < Data.chunkHeight; y++)
+        {
+            for (int x = 0; x < Data.chunkWidth; x++)
+            {
+                for (int z = 0; z < Data.chunkWidth; z++)
+                {
+                    AddBlock(x, y, z);
+                }
+            }
+        }
+    }
+
+    //adds the data of a single block
+    private void AddBlock(int x, int y, int z)
+    {
+        byte[] textures = world.GetTextures(blocks[x, y, z]);
+        
+        //only draw solid blocks
+        if(blocks[x, y, z] != 0)
+        {
+            for (int f = 0; f < 6; f++)
+            {
+                //check for connecting faces
+                if (!world.CheckBlock(new Vector3(x + Data.faceChecks[f].x + chunkPosition.x * Data.chunkWidth, 
+                        y + Data.faceChecks[f].y, 
+                        z + Data.faceChecks[f].z + chunkPosition.z * Data.chunkWidth)))
+                {
+                    for (int v = 0; v < 6; v++)
+                    {
+                        vertices.Add(Data.vertices[Data.triangles[f, v]] + new Vector3(x, y, z));
+                        triangles.Add(triangleIndex);
+                        triangleIndex++;
+                    }
+                    
+                    AddUV(textures[f]);
+                }
+            }
+        }
+    }
+
+    
+    //add uv to a face
+    private void AddUV(byte textureID)
+    {
+        float y = (int)(textureID / Data.textureAtlasSize);
+        float x = (int)(textureID - (y * Data.textureAtlasSize));
+        float textureSize = 1f / Data.textureAtlasSize;
+        
+        y /= Data.textureAtlasSize;
+        x /= Data.textureAtlasSize;
+        y = 1 - y;
+        
+        uv.Add(new Vector2(x, y - textureSize));
+        uv.Add(new Vector2(x, y));
+        uv.Add(new Vector2(x + textureSize, y - textureSize));
+        uv.Add(new Vector2(x + textureSize, y - textureSize));
+        uv.Add(new Vector2(x, y));
+        uv.Add(new Vector2(x + textureSize, y));
+    }
+    
+    //creates the final mesh
+    public void CreateMesh()
+    {
+        Mesh mesh = new Mesh();
+        mesh.vertices = vertices.ToArray();
+        mesh.triangles = triangles.ToArray();
+        mesh.uv = uv.ToArray();
+        mesh.RecalculateNormals();
+        meshFilter.mesh = mesh;
+        meshRenderer.material = material;
+        collider.sharedMesh = mesh;
+    }
+
+    public void Edit(byte x, byte y, byte z, byte blockID)
+    {
+        blocks[x, y, z] = blockID;
+    }
+
+    public void Update()
+    {
+        vertices.Clear();
+        triangles.Clear();
+        uv.Clear();
+        triangleIndex = 0;
+        AddBlocks();
+        CreateMesh();
+    }
+}