140 lines
5.5 KiB
C#
140 lines
5.5 KiB
C#
using System.Collections.Generic;
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using UnityEngine;
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/// <summary>
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/// Синглтон. Собирает все BlockDefinition, строит Texture2DArray,
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/// создаёт один shared Material для всех чанков.
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/// Вызвать Initialise() до создания любого чанка.
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/// </summary>
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public class BlockRegistry : MonoBehaviour
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{
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public static BlockRegistry Instance { get; private set; }
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[Header("All block definitions in the game")]
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public List<BlockDefinition> definitions = new();
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[Header("Shader")]
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public Shader voxelShader; // назначить Blocks/VoxelLit через Inspector
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// Доступно после Initialise()
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public Material ChunkMaterial { get; private set; }
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public Texture2DArray TexArray { get; private set; }
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private readonly Dictionary<string, BlockDefinition> _byId = new();
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private readonly Dictionary<string, BlockDefinition> _byItemId = new();
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void Awake()
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{
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if (Instance != null) { Destroy(gameObject); return; }
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Instance = this;
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DontDestroyOnLoad(gameObject);
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Initialise();
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}
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public void Initialise()
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{
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_byId.Clear();
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_byItemId.Clear();
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if (definitions == null || definitions.Count == 0)
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{
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Debug.LogWarning("[BlockRegistry] No BlockDefinitions assigned.");
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return;
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}
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// Собираем уникальные текстуры (top/bottom/side каждого блока)
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// Порядок: для блока i → top=i*3, bottom=i*3+1, side=i*3+2
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int layerCount = definitions.Count * 3;
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int res = 128; // разрешение должно совпадать с текстурами блоков
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TexArray = new Texture2DArray(res, res, layerCount,
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TextureFormat.RGBA32, true, false);
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TexArray.filterMode = FilterMode.Point; // пиксельный стиль
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TexArray.wrapMode = TextureWrapMode.Repeat;
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for (int i = 0; i < definitions.Count; i++)
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{
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var def = definitions[i];
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def.topIndex = i * 3;
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def.bottomIndex = i * 3 + 1;
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def.sideIndex = i * 3 + 2;
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CopyTexture(def.topTexture, TexArray, def.topIndex, res);
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CopyTexture(def.bottomTexture, TexArray, def.bottomIndex, res);
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CopyTexture(def.sideTexture, TexArray, def.sideIndex, res);
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_byId[def.blockId] = def;
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if (def.linkedItem != null)
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_byItemId[def.linkedItem.id] = def;
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}
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TexArray.Apply(true, true); // загрузить на GPU, сделать non-readable
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// Создаём один материал для всех чанков
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if (voxelShader == null)
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voxelShader = Shader.Find("Blocks/VoxelLit");
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ChunkMaterial = new Material(voxelShader);
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ChunkMaterial.SetTexture("_MainTexArray", TexArray);
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Debug.Log($"[BlockRegistry] Initialised {definitions.Count} blocks, {layerCount} texture layers.");
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}
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// ── Lookups ───────────────────────────────────────────────────────────────
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public BlockDefinition GetById(string blockId)
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{
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_byId.TryGetValue(blockId, out var def);
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return def;
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}
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/// <summary>Находит BlockDefinition по id связанного ItemData (для постановки блока).</summary>
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public BlockDefinition GetByItemId(string itemDataId)
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{
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_byItemId.TryGetValue(itemDataId, out var def);
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return def;
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}
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// ── Утилиты ───────────────────────────────────────────────────────────────
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/// <summary>
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/// Копирует пиксели из src в Texture2DArray на слой layerIndex.
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/// Если src null или не того размера — заполняет пурпурным (ошибка-текстура).
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/// </summary>
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static void CopyTexture(Texture2D src, Texture2DArray dst, int layerIndex, int res)
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{
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Color[] pixels;
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if (src == null)
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{
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// Пурпурный = "текстура не назначена"
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pixels = new Color[res * res];
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for (int p = 0; p < pixels.Length; p++)
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pixels[p] = (p / res + p) % 2 == 0 ? Color.magenta : Color.black;
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}
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else if (src.width != res || src.height != res)
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{
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Debug.LogWarning($"[BlockRegistry] {src.name} is {src.width}×{src.height}, expected {res}×{res}. Scaling.");
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// Простой fallback — масштабировать через RenderTexture
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var rt = RenderTexture.GetTemporary(res, res);
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Graphics.Blit(src, rt);
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var prev = RenderTexture.active;
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RenderTexture.active = rt;
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var resized = new Texture2D(res, res, TextureFormat.RGBA32, false);
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resized.ReadPixels(new Rect(0, 0, res, res), 0, 0);
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resized.Apply();
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RenderTexture.active = prev;
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RenderTexture.ReleaseTemporary(rt);
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pixels = resized.GetPixels();
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}
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else
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{
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pixels = src.GetPixels();
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}
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dst.SetPixels(pixels, layerIndex);
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}
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}
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