feat: Implement hillshade layer

Assets/Cryville.EEW.Unity/Config.cs

@@ -12,6 +12,7 @@ namespace Cryville.EEW.Unity {
 		float SeverityColorMappingLuminanceMultiplier,
 		bool UseContinuousColor,
 		string ColorScheme,
+		float HillshadeLayerOpacity,
 		string LocationNamer,
 
 		string OverrideTimeZone,
@@ -31,6 +32,7 @@ namespace Cryville.EEW.Unity {
 			1f,
 			false,
 			"Default",
+			1,
 			"FERegionLong",
 
 			null,

Assets/Cryville.EEW.Unity/Map/CameraController.cs

@@ -1,3 +1,4 @@
+using Cryville.EEW.Core.Map;
 using System;
 using System.Drawing;
 using UnityEngine;
@@ -10,12 +11,16 @@ namespace Cryville.EEW.Unity.Map {
 		[SerializeField]
 		Transform m_layerTile;
 		[SerializeField]
+		Transform m_layerTileHillshade;
+		[SerializeField]
 		MapElementManager m_layerElement;
 		[SerializeField]
 		MapElementManager m_layerElementSub;
 		[SerializeField]
 		GameObject m_prefabTile;
 		[SerializeField]
+		GameObject m_prefabTileHillshade;
+		[SerializeField]
 		GameObject m_prefabBitmapHolder;
 		[SerializeField]
 		int m_maxMapTileZoom = 10;
@@ -23,6 +28,7 @@ namespace Cryville.EEW.Unity.Map {
 		bool m_isEditor;
 
 		MapTileCacheManager _tiles;
+		MapTileCacheManager _tilesHillshade;
 		float _elementLayerZ;
 
 		void Start() {
@@ -33,12 +39,23 @@ namespace Cryville.EEW.Unity.Map {
 			_tiles.PrefabTile = m_prefabTile;
 			_tiles.PrefabBitmapHolder = m_prefabBitmapHolder;
 			_tiles.CacheDir = Application.temporaryCachePath;
+			if (m_layerTileHillshade) {
+				m_prefabTileHillshade.GetComponent<SpriteRenderer>().sharedMaterial.color = new UnityEngine.Color(1, 1, 1, SharedSettings.Instance.HillshadeLayerOpacity);
+				_tilesHillshade = new HillshadeMapTileCacheManager {
+					ExtraCachedZoomLevel = 20,
+					Parent = m_layerTileHillshade,
+					PrefabTile = m_prefabTileHillshade,
+					PrefabBitmapHolder = m_prefabBitmapHolder,
+					CacheDir = Application.temporaryCachePath,
+				};
+			}
 			_camera.orthographicSize = 0.5f / MathF.Max(1, (float)_camera.pixelWidth / _camera.pixelHeight);
 			if (m_layerElement != null) _elementLayerZ = m_layerElement.transform.position.z;
 			_mapElementUpdated = true;
 		}
 		void OnDestroy() {
 			_tiles.Dispose();
+			_tilesHillshade?.Dispose();
 		}
 
 		float Scale {
@@ -104,10 +121,10 @@ namespace Cryville.EEW.Unity.Map {
 			var bounds = new Bounds((Vector2)transform.position, new Vector2(w, h));
 			int zoom = Math.Clamp((int)Math.Log(vz / 256, 2) + 1, 0, m_maxMapTileZoom);
 			int zoomScale = 1 << zoom;
-			_tiles.MoveTo(
-				new(Mathf.FloorToInt(bounds.min.x * zoomScale), Mathf.FloorToInt(-bounds.max.y * zoomScale), zoom),
-				new(Mathf.CeilToInt(bounds.max.x * zoomScale), Mathf.CeilToInt(-bounds.min.y * zoomScale), zoom)
-			);
+			var a = new MapTileIndex(Mathf.FloorToInt(bounds.min.x * zoomScale), Mathf.FloorToInt(-bounds.max.y * zoomScale), zoom);
+			var b = new MapTileIndex(Mathf.CeilToInt(bounds.max.x * zoomScale), Mathf.CeilToInt(-bounds.min.y * zoomScale), zoom);
+			_tiles.MoveTo(a, b);
+			_tilesHillshade?.MoveTo(a, b);
 
 			if (m_layerElement != null) {
 				m_layerElement.Scale = h;

Assets/Cryville.EEW.Unity/Map/HillshadeMapTileCacheManager.cs

@@ -0,0 +1,15 @@
+using Cryville.EEW.Core.Map;
+using System.IO;
+using UnityEngine;
+
+namespace Cryville.EEW.Unity.Map {
+	sealed class HillshadeMapTileCacheManager : MapTileCacheManager {
+		protected override MapTileBitmapHolder CreateBitmapHolder(MapTileIndex index) => new(
+			index,
+			GameObject.Instantiate(PrefabBitmapHolder, Parent, false),
+			new($"https://services.arcgisonline.com/arcgis/rest/services/Elevation/World_Hillshade/MapServer/tile/{index.Z}/{index.NY}/{index.NX}.png")
+		);
+
+		protected override string GetCacheFilePath(MapTileIndex index) => Path.Combine(CacheDir, $"map_hillshade/{index.Z}/{index.NX}/{index.NY}");
+	}
+}

Assets/Cryville.EEW.Unity/Map/HillshadeMapTileCacheManager.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: d5fed9b884a4ff54f837aa0f2265ad36
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Cryville.EEW.Unity/Map/MapTile.cs

@@ -19,10 +19,12 @@ namespace Cryville.EEW.Unity.Map {
 			float z = 1 << index.Z;
 			transform.localPosition = new(index.X / z, -(index.Y + 1) / z, -index.Z / 100f);
 			transform.localScale = new Vector3(1 / z, 1 / z, 1);
-			_idView.gameObject.SetActive(true);
-			byte e = SharedSettings.Instance.IdBytes[((index.X << 2) + index.Y) & 0x1f];
-			int ex = e >> 4, ey = e & 0xf;
-			_idView.localPosition = new(ex / 16f, 1 - ey / 16f, -1 / 200f);
+			if (_idView) {
+				_idView.gameObject.SetActive(true);
+				byte e = SharedSettings.Instance.IdBytes[((index.X << 2) + index.Y) & 0x1f];
+				int ex = e >> 4, ey = e & 0xf;
+				_idView.localPosition = new(ex / 16f, 1 - ey / 16f, -1 / 200f);
+			}
 		}
 
 		public void Set(Sprite sprite) {
@@ -40,5 +42,9 @@ namespace Cryville.EEW.Unity.Map {
 				Destroy(gameObject);
 			}
 		}
+
+		public void SetVisible(bool v) {
+			_renderer.enabled = v;
+		}
 	}
 }

Assets/Cryville.EEW.Unity/Map/MapTileBitmapHolder.cs

@@ -12,6 +12,7 @@ namespace Cryville.EEW.Unity.Map {
 
 		public MapTileBitmapHolder(MapTileIndex index, GameObject gameObject, Uri uri) : base(index) {
 			_behaviour = gameObject.GetComponent<MapTileBitmapHolderBehaviour>();
+			_behaviour.Index = index;
 			_uri = uri;
 		}
 
@@ -32,5 +33,17 @@ namespace Cryville.EEW.Unity.Map {
 		public void Bind(MapTile tile) {
 			_behaviour.Bind(tile);
 		}
+
+		public void Unbind(MapTile tile) {
+			_behaviour.Unbind(tile);
+		}
+
+		public void AddChild(MapTileBitmapHolder bitmapHolder) {
+			_behaviour.AddChild(bitmapHolder._behaviour);
+		}
+
+		public void RemoveChild(MapTileBitmapHolder bitmapHolder) {
+			_behaviour.RemoveChild(bitmapHolder._behaviour);
+		}
 	}
 }

Assets/Cryville.EEW.Unity/Map/MapTileBitmapHolderBehaviour.cs

@@ -1,16 +1,39 @@
+using Cryville.EEW.Core.Map;
 using System;
+using System.Collections.Generic;
 using System.IO;
 using UnityEngine;
 using UnityEngine.Networking;
 
 namespace Cryville.EEW.Unity.Map {
 	sealed class MapTileBitmapHolderBehaviour : MonoBehaviour {
-		Action<Sprite> _callback;
+		public MapTileIndex Index { get; set; }
+
+		readonly List<MapTile> _tiles = new();
 		public void Bind(MapTile tile) {
-			if (_isDone)
+			_tiles.Add(tile);
+			if (_sprite) {
 				tile.Set(_sprite);
-			else
-				_callback += tile.Set;
+			}
+		}
+		public void Unbind(MapTile tile) {
+			_tiles.Remove(tile);
+		}
+
+		readonly List<MapTileBitmapHolderBehaviour> _children = new();
+		public void AddChild(MapTileBitmapHolderBehaviour behaviour) {
+			_children.Add(behaviour);
+			foreach (var tile in _tiles) {
+				tile.SetVisible(false);
+			}
+			SetChildSprite(behaviour);
+		}
+		public void RemoveChild(MapTileBitmapHolderBehaviour behaviour) {
+			_children.Remove(behaviour);
+			bool isActive = _children.Count == 0;
+			foreach (var tile in _tiles) {
+				tile.SetVisible(isActive);
+			}
 		}
 
 		UnityWebRequest _req;
@@ -20,7 +43,6 @@ namespace Cryville.EEW.Unity.Map {
 
 		FileInfo _localFile;
 		bool _isReady;
-		bool _isDone;
 		public void Load(FileInfo file) {
 			_localFile = file;
 			_isReady = true;
@@ -48,7 +70,7 @@ namespace Cryville.EEW.Unity.Map {
 			if (_texHandler.isDone && _texHandler.texture != null) {
 				_tex = _texHandler.texture;
 				_tex.wrapMode = TextureWrapMode.Clamp;
-				_sprite = Sprite.Create(_tex, new Rect(0, 0, _tex.width, _tex.height), Vector2.zero, _tex.height, 0, SpriteMeshType.FullRect, Vector4.zero, false);
+				SetSprite(_tex, 0, 0, 0);
 			}
 			else {
 				App.MainLogger.Log(4, "Map", null, "An error occurred when loading map tile {0}: {1}", _localFile, _texHandler.error);
@@ -57,10 +79,32 @@ namespace Cryville.EEW.Unity.Map {
 			_req.Dispose();
 			_texHandler.Dispose();
 			_req = null;
-			_callback?.Invoke(_sprite);
-			_isDone = true;
 		}
 
+		int _minDz = int.MaxValue;
+		int _x, _y;
+		void SetSprite(Texture2D tex, int dz, int x, int y) {
+			if (dz >= 8) return;
+			if (dz > _minDz) return;
+			_tex = tex;
+			_x = x; _y = y;
+			_minDz = dz;
+			if (_sprite) Destroy(_sprite);
+			int sx = x << (8 - dz), sy = 256 - ((y + 1) << (8 - dz));
+			_sprite = Sprite.Create(tex, new Rect(sx, sy, 1 << (8 - dz), 1 << (8 - dz)), Vector2.zero, 1 << (8 - dz), 0, SpriteMeshType.FullRect, Vector4.zero, false);
+			foreach (var tile in _tiles)
+				tile.Set(_sprite);
+			foreach (var child in _children) {
+				SetChildSprite(child);
+			}
+		}
+
+		void SetChildSprite(MapTileBitmapHolderBehaviour child) {
+			if (!_tex) return;
+			int cdz = child.Index.Z - Index.Z;
+			int cx = child.Index.X % (1 << cdz) | (_x << cdz), cy = child.Index.Y % (1 << cdz) | (_y << cdz);
+			child.SetSprite(_tex, cdz + _minDz, cx, cy);
+		}
 
 		bool _isDestroyed;
 		public void Destroy() {
@@ -69,11 +113,15 @@ namespace Cryville.EEW.Unity.Map {
 		void OnDestroy() {
 			if (_req != null) {
 				_req.Abort();
+				if (_texHandler != null) {
+					var tex = _texHandler.texture;
+					if (tex) Destroy(tex);
+					_texHandler.Dispose();
+				}
 				_req.Dispose();
-				_texHandler.Dispose();
 			}
 			if (_sprite) Destroy(_sprite);
-			if (_tex) Destroy(_tex);
+			if (_tex && _minDz == 0) Destroy(_tex);
 		}
 	}
 }

Assets/Cryville.EEW.Unity/Map/MapTileCacheManager.cs

@@ -1,4 +1,5 @@
 using Cryville.EEW.Core.Map;
+using System;
 using System.Collections.Generic;
 using System.IO;
 using UnityEngine;
@@ -17,7 +18,7 @@ namespace Cryville.EEW.Unity.Map {
 			GameObject.Instantiate(PrefabBitmapHolder, Parent, false),
 			new($"https://server.arcgisonline.com/ArcGIS/rest/services/Ocean/World_Ocean_Base/MapServer/tile/{index.Z}/{index.NY}/{index.NX}")
 		);
-		
+
 		protected override string GetCacheFilePath(MapTileIndex index) => Path.Combine(CacheDir, $"map/{index.Z}/{index.NX}/{index.NY}");
 
 		readonly Dictionary<MapTile<MapTileBitmapHolder>, MapTile> _map = new();
@@ -26,16 +27,30 @@ namespace Cryville.EEW.Unity.Map {
 			var gameObject = GameObject.Instantiate(PrefabTile, Parent, false);
 			var uTile = gameObject.GetComponent<MapTile>();
 			_map.Add(tile, uTile);
-			uTile.Init(tile.Index);
-			tile.BitmapHolder.Bind(uTile);
+			var index = tile.Index;
+			uTile.Init(index);
+			var bitmapHolder = tile.BitmapHolder;
+			bitmapHolder.Bind(uTile);
+
+			if (index.Z <= 0) return;
+			var maybeTile = FindTile(index.ZoomToLevel(index.Z - 1, Math.Floor), false);
+			if (maybeTile is not MapTile<MapTileBitmapHolder> parentTile) return;
+			parentTile.BitmapHolder.AddChild(bitmapHolder);
 		}
 
 		protected override void OnTileDestroyed(MapTile<MapTileBitmapHolder> tile) {
 			base.OnTileDestroyed(tile);
+			var bitmapHolder = tile.BitmapHolder;
 			if (_map.TryGetValue(tile, out var uTile)) {
 				uTile.Destroy();
+				bitmapHolder.Unbind(uTile);
 				_map.Remove(tile);
 			}
+			var index = tile.Index;
+			if (index.Z <= 0) return;
+			var maybeTile = FindTile(index.ZoomToLevel(index.Z - 1, Math.Floor), false);
+			if (maybeTile is not MapTile<MapTileBitmapHolder> parentTile) return;
+			parentTile.BitmapHolder.RemoveChild(bitmapHolder);
 		}
 	}
 }

Assets/Cryville.EEW.Unity/SharedSettings.cs

@@ -26,6 +26,7 @@ namespace Cryville.EEW.Unity {
 		public IColorScheme ColorScheme { get; private set; } = new SeverityBasedColorScheme(DefaultSeverityScheme.Instance, DefaultSeverityColorMapping.Instance);
 		public ISubColorScheme BorderColorScheme { get; private set; } = new WrappedColorScheme(new SeverityBasedColorScheme(DefaultSeverityScheme.Instance, DefaultSeverityColorMapping.SecondaryInstance));
 		public ISubColorScheme TextColorScheme { get; private set; } = new DefaultTextColorScheme(Color.White, Color.Black);
+		public float HillshadeLayerOpacity { get; private set; } = 1;
 		public TimeSpan NowcastWarningDelayTolerance { get; private set; } = TimeSpan.FromMinutes(60);
 
 		public CultureInfo RVMCulture { get; private set; } = SharedCultures.CurrentUICulture;
@@ -117,6 +118,7 @@ namespace Cryville.EEW.Unity {
 				"SREV" => new DefaultTextColorScheme(Color.White, Color.FromArgb(28, 28, 28), 0.555f),
 				_ => new DefaultTextColorScheme(Color.White, Color.Black),
 			};
+			HillshadeLayerOpacity = config.HillshadeLayerOpacity;
 			_locationNamer.Namer = config.LocationNamer switch {
 				"FERegionShort" => new FERegionShortNamer(),
 				_ => new FERegionLongNamer(),

Assets/Main.unity

@@ -677,9 +677,11 @@ MonoBehaviour:
   m_Name: 
   m_EditorClassIdentifier: 
   m_layerTile: {fileID: 1412061072}
+  m_layerTileHillshade: {fileID: 1089136493}
   m_layerElement: {fileID: 1602500234}
   m_layerElementSub: {fileID: 303098821}
   m_prefabTile: {fileID: 7683017549812261837, guid: e090edd328c6750478f5849a43a9d278, type: 3}
+  m_prefabTileHillshade: {fileID: 7683017549812261837, guid: d112aa7211e072e489ec497e34c5b57b, type: 3}
   m_prefabBitmapHolder: {fileID: 1455558857588368834, guid: 1a5cf693e0cf6b94390f72f521c151ba, type: 3}
   m_maxMapTileZoom: 10
   m_isEditor: 0
@@ -1068,6 +1070,37 @@ MonoBehaviour:
   m_FlexibleWidth: 1
   m_FlexibleHeight: -1
   m_LayoutPriority: 1
+--- !u!1 &1089136492
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 1089136493}
+  m_Layer: 0
+  m_Name: Map Tiles Hillshade
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!4 &1089136493
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1089136492}
+  serializedVersion: 2
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: -0.5}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 0}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1 &1345962671
 GameObject:
   m_ObjectHideFlags: 0
@@ -3860,6 +3893,7 @@ SceneRoots:
   m_Roots:
   - {fileID: 376792589}
   - {fileID: 1412061072}
+  - {fileID: 1089136493}
   - {fileID: 1602500233}
   - {fileID: 303098822}
   - {fileID: 1345962672}

Assets/Materials/Multiply.mat

@@ -0,0 +1,91 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!21 &2100000
+Material:
+  serializedVersion: 8
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: Multiply
+  m_Shader: {fileID: 4800000, guid: 0637d3d4bac33b34ea1fb084d1aa83c5, type: 3}
+  m_Parent: {fileID: 0}
+  m_ModifiedSerializedProperties: 0
+  m_ValidKeywords: []
+  m_InvalidKeywords: []
+  m_LightmapFlags: 4
+  m_EnableInstancingVariants: 0
+  m_DoubleSidedGI: 0
+  m_CustomRenderQueue: -1
+  stringTagMap: {}
+  disabledShaderPasses: []
+  m_LockedProperties: 
+  m_SavedProperties:
+    serializedVersion: 3
+    m_TexEnvs:
+    - _AlphaTex:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _BumpMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _DetailAlbedoMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _DetailMask:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _DetailNormalMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _EmissionMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _MainTex:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _MetallicGlossMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _OcclusionMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _ParallaxMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    m_Ints: []
+    m_Floats:
+    - PixelSnap: 0
+    - _BumpScale: 1
+    - _Cutoff: 0.5
+    - _DetailNormalMapScale: 1
+    - _DstBlend: 0
+    - _EnableExternalAlpha: 0
+    - _GlossMapScale: 1
+    - _Glossiness: 0.5
+    - _GlossyReflections: 1
+    - _Metallic: 0
+    - _Mode: 0
+    - _OcclusionStrength: 1
+    - _Parallax: 0.02
+    - _SmoothnessTextureChannel: 0
+    - _SpecularHighlights: 1
+    - _SrcBlend: 1
+    - _UVSec: 0
+    - _ZWrite: 1
+    m_Colors:
+    - _Color: {r: 1, g: 1, b: 1, a: 0.5}
+    - _EmissionColor: {r: 0, g: 0, b: 0, a: 1}
+    - _Flip: {r: 1, g: 1, b: 1, a: 1}
+    - _RendererColor: {r: 1, g: 1, b: 1, a: 1}
+  m_BuildTextureStacks: []

Assets/Materials/Multiply.mat.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: e2b4779e0934e3b45978a57b79d75597
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 2100000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Prefabs/TileMultiply.prefab

@@ -0,0 +1,100 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!1 &7683017549812261837
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 7683017549812261838}
+  - component: {fileID: 7683017549812261832}
+  - component: {fileID: 3920659423852445223}
+  m_Layer: 0
+  m_Name: TileMultiply
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!4 &7683017549812261838
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 7683017549812261837}
+  serializedVersion: 2
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 0}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!212 &7683017549812261832
+SpriteRenderer:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 7683017549812261837}
+  m_Enabled: 1
+  m_CastShadows: 0
+  m_ReceiveShadows: 0
+  m_DynamicOccludee: 1
+  m_StaticShadowCaster: 0
+  m_MotionVectors: 1
+  m_LightProbeUsage: 1
+  m_ReflectionProbeUsage: 1
+  m_RayTracingMode: 0
+  m_RayTraceProcedural: 0
+  m_RenderingLayerMask: 1
+  m_RendererPriority: 0
+  m_Materials:
+  - {fileID: 2100000, guid: e2b4779e0934e3b45978a57b79d75597, type: 2}
+  m_StaticBatchInfo:
+    firstSubMesh: 0
+    subMeshCount: 0
+  m_StaticBatchRoot: {fileID: 0}
+  m_ProbeAnchor: {fileID: 0}
+  m_LightProbeVolumeOverride: {fileID: 0}
+  m_ScaleInLightmap: 1
+  m_ReceiveGI: 1
+  m_PreserveUVs: 0
+  m_IgnoreNormalsForChartDetection: 0
+  m_ImportantGI: 0
+  m_StitchLightmapSeams: 1
+  m_SelectedEditorRenderState: 0
+  m_MinimumChartSize: 4
+  m_AutoUVMaxDistance: 0.5
+  m_AutoUVMaxAngle: 89
+  m_LightmapParameters: {fileID: 0}
+  m_SortingLayerID: 0
+  m_SortingLayer: 0
+  m_SortingOrder: 0
+  m_Sprite: {fileID: 0}
+  m_Color: {r: 1, g: 1, b: 1, a: 1}
+  m_FlipX: 0
+  m_FlipY: 0
+  m_DrawMode: 0
+  m_Size: {x: 1.28, y: 1.28}
+  m_AdaptiveModeThreshold: 0.5
+  m_SpriteTileMode: 0
+  m_WasSpriteAssigned: 0
+  m_MaskInteraction: 0
+  m_SpriteSortPoint: 0
+--- !u!114 &3920659423852445223
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 7683017549812261837}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 772f71bcdaaa2504d9e9a469c3100593, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  _idView: {fileID: 0}

Assets/Prefabs/TileMultiply.prefab.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: d112aa7211e072e489ec497e34c5b57b
+PrefabImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Shaders/Multiply.shader

@@ -0,0 +1,54 @@
+Shader "Map/Multiply" {
+	Properties {
+		_Color ("Color", Color) = (1, 1, 1, 1)
+		_MainTex ("Texture", 2D) = "white" { }
+	}
+	SubShader {
+		Tags {
+			"RenderType" = "Transparent"
+			"Queue" = "Transparent"
+		}
+		LOD 100
+		
+		Blend Zero SrcColor
+
+		Pass {
+			CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
+
+			#include "UnityCG.cginc"
+
+			struct appdata {
+				float4 vertex : POSITION;
+				float2 uv : TEXCOORD0;
+				fixed4 color : COLOR0;
+			};
+
+			struct v2f {
+				float2 uv : TEXCOORD0;
+				float4 vertex : SV_POSITION;
+				fixed4 color : COLOR0;
+			};
+
+			sampler2D _MainTex;
+			float4 _MainTex_ST;
+			fixed4 _Color;
+
+			v2f vert (appdata v) {
+				v2f o;
+				o.vertex = UnityObjectToClipPos(v.vertex);
+				o.uv = TRANSFORM_TEX(v.uv, _MainTex);
+				o.color = v.color;
+				return o;
+			}
+
+			fixed4 frag (v2f i) : SV_Target {
+				float a = i.color.a * _Color.a;
+				fixed4 col = 1 - a * (1 - tex2D(_MainTex, i.uv) * i.color * _Color);
+				return col;
+			}
+			ENDCG
+		}
+	}
+}

Assets/Shaders/Multiply.shader.meta

@@ -0,0 +1,9 @@
+fileFormatVersion: 2
+guid: 0637d3d4bac33b34ea1fb084d1aa83c5
+ShaderImporter:
+  externalObjects: {}
+  defaultTextures: []
+  nonModifiableTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: