Fix lighting bug and two bugs with resource-loading

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil112.java

@@ -98,7 +98,7 @@ public LightData getLightData(Vector3i pos) {
 		int sectionY = MCAUtil.blockToChunk(pos.getY());
 		
 		Section section = this.sections[sectionY];
-		if (section == null) return LightData.FULL;
+		if (section == null) return LightData.SKY;
 		
 		return section.getLightData(pos);
 	}

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil113.java

@@ -107,7 +107,7 @@ public LightData getLightData(Vector3i pos) {
 		int sectionY = MCAUtil.blockToChunk(pos.getY());
 		
 		Section section = this.sections[sectionY];
-		if (section == null) return LightData.FULL;
+		if (section == null) return LightData.SKY;
 		
 		return section.getLightData(pos);
 	}

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil115.java

@@ -107,7 +107,7 @@ public LightData getLightData(Vector3i pos) {
 		int sectionY = MCAUtil.blockToChunk(pos.getY());
 		
 		Section section = this.sections[sectionY];
-		if (section == null) return LightData.FULL;
+		if (section == null) return LightData.SKY;
 		
 		return section.getLightData(pos);
 	}

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/MCAWorld.java

@@ -169,7 +169,7 @@ public Block getBlock(Vector3i pos) {
 		}
 		
 		if (pos.getY() > getMaxY()) {
-			return new Block(this, BlockState.AIR, LightData.FULL, Biome.DEFAULT, BlockProperties.TRANSPARENT, pos);
+			return new Block(this, BlockState.AIR, LightData.SKY, Biome.DEFAULT, BlockProperties.TRANSPARENT, pos);
 		}
 		
 		try {

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/resourcepack/ResourcePack.java

@@ -45,6 +45,7 @@
 import de.bluecolored.bluemap.core.logger.Logger;
 import de.bluecolored.bluemap.core.resourcepack.BlockStateResource.Builder;
 import de.bluecolored.bluemap.core.resourcepack.fileaccess.BluemapAssetOverrideFileAccess;
+import de.bluecolored.bluemap.core.resourcepack.fileaccess.CaseInsensitiveFileAccess;
 import de.bluecolored.bluemap.core.resourcepack.fileaccess.CombinedFileAccess;
 import de.bluecolored.bluemap.core.resourcepack.fileaccess.FileAccess;
 import de.bluecolored.bluemap.core.world.BlockState;
@@ -140,7 +141,7 @@ public void load(File... sources) {
 				}
 			}
 			
-			FileAccess sourcesAccess = new BluemapAssetOverrideFileAccess(combinedSources);
+			FileAccess sourcesAccess = new CaseInsensitiveFileAccess(new BluemapAssetOverrideFileAccess(combinedSources));
 			
 			textures.reloadAllTextures(sourcesAccess);
 			

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/resourcepack/fileaccess/CaseInsensitiveFileAccess.java

@@ -0,0 +1,108 @@
+/*
+ * This file is part of BlueMap, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
+ * Copyright (c) contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package de.bluecolored.bluemap.core.resourcepack.fileaccess;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Collection;
+
+/**
+ * This {@link FileAccess} maps its parent {@link FileAccess} to first look in assets/[namespace]/bluemap/... instead of assets/[namespace]/...
+ */
+public class CaseInsensitiveFileAccess implements FileAccess {
+
+	public FileAccess parent;
+	
+	public CaseInsensitiveFileAccess(FileAccess parent) {
+		this.parent = parent;
+	}
+	
+	@Override
+	public InputStream readFile(String path) throws FileNotFoundException, IOException {
+		try {
+			return parent.readFile(path);
+		} catch (FileNotFoundException ex) {
+			try {
+				return parent.readFile(path.toLowerCase());
+			} catch (FileNotFoundException ex2) {
+				path = correctPathCase(path);
+				return parent.readFile(path);
+			}
+		}
+	}
+
+	private String correctPathCase(String path) throws FileNotFoundException, IOException {
+		path = FileAccess.normalize(path);
+		String[] pathParts = path.split("/");
+		
+		String correctPath = "";
+		for (int i = 0; i < pathParts.length; i++) {
+			String part = correctPath + pathParts[i];
+			
+			boolean found = false;
+			for(String folder : listFolders(correctPath)) {
+				if (!folder.equalsIgnoreCase(part)) continue;
+				
+				part = folder;
+				found = true;
+				break;
+			}
+			
+			if (!found && i == pathParts.length - 1) {
+				for(String folder : listFiles(correctPath, false)) {
+					if (!folder.equalsIgnoreCase(part)) continue;
+					
+					part = folder;
+					found = true;
+					break;
+				}
+			}
+			
+			if (!found) throw new FileNotFoundException();
+			
+			correctPath = part + "/";
+		}
+		
+		correctPath = FileAccess.normalize(correctPath);
+		return correctPath;
+	}
+
+	@Override
+	public Collection<String> listFiles(String path, boolean recursive) {
+		return parent.listFiles(path, recursive);
+	}
+
+	@Override
+	public Collection<String> listFolders(String path) {
+		return parent.listFolders(path);
+	}
+	
+	@Override
+	public void close() throws IOException {
+		parent.close();
+	}
+
+}

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/resourcepack/fileaccess/ZipFileAccess.java

@@ -31,6 +31,7 @@
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Enumeration;
+import java.util.HashSet;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipException;
 import java.util.zip.ZipFile;
@@ -85,14 +86,20 @@ public Collection<String> listFiles(String path, boolean recursive) {
 	public Collection<String> listFolders(String path) {
 		path = normalizeFolderPath(path);
 		
-		Collection<String> folders = new ArrayList<String>();
+		Collection<String> folders = new HashSet<String>();
 		for (Enumeration<? extends ZipEntry> entries = file.entries(); entries.hasMoreElements();) {
 			ZipEntry entry = entries.nextElement();
 			
-			if (!entry.isDirectory()) continue;
-			
 			String file = entry.getName();
-			file = file.substring(0, file.length() - 1); //strip last /
+			if (!entry.isDirectory()) {
+				int nameSplit = file.lastIndexOf('/');
+				if (nameSplit == -1) continue;
+				file = file.substring(0, nameSplit);
+			}
+			file = normalizeFolderPath(file);
+			
+			//strip last /
+			file = file.substring(0, file.length() - 1);
 			
 			int nameSplit = file.lastIndexOf('/');
 			String filePath = "/";
@@ -101,7 +108,17 @@ public Collection<String> listFolders(String path) {
 			}
 			filePath = normalizeFolderPath(filePath);
 			
-			if (!path.equals(filePath)) continue;
+			if (!filePath.startsWith(path)) continue;
+			
+			int subFolderMark = file.indexOf('/', path.length());
+			if (subFolderMark != -1) {
+				file = file.substring(0, subFolderMark);
+			}
+			
+			file = normalizeFolderPath(file);
+			
+			//strip last /
+			file = file.substring(0, file.length() - 1);
 			
 			folders.add(file);
 		}

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/world/LightData.java

@@ -27,7 +27,8 @@
 public class LightData {
 	
 	public static final LightData ZERO = new LightData(0, 0);
-	public static final LightData FULL = new LightData(15, 15); 
+	public static final LightData SKY = new LightData(15, 0);
+	public static final LightData FULL = new LightData(15, 15);
 	
 	private final int skyLight, blockLight;
 	

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/world/SlicedWorld.java

@@ -180,7 +180,7 @@ private Block createAirBlock(Vector3i pos) {
 		return new Block(
 				this, 
 				BlockState.AIR, 
-				pos.getY() < this.min.getY() ? LightData.ZERO : LightData.FULL, 
+				pos.getY() < this.min.getY() ? LightData.ZERO : LightData.SKY,
 				Biome.DEFAULT, 
 				BlockProperties.TRANSPARENT, 
 				pos