made exclusions lib optional, since it crashes with connector rn. Workaround for #593

Author: DaFuqs

build.gradle

@@ -46,7 +46,7 @@ dependencies {
 	modImplementation ("net.fabricmc.fabric-api:fabric-api:${project.fabric_version}")
 
 	// ours
-	modImplementation ("maven.modrinth:exclusions-lib:${project.exclusionslib_version}")
+	modImplementation("maven.modrinth:exclusions-lib:${project.exclusionslib_version}") // soft impl via json
 	modImplementation ("maven.modrinth:Revelationary:${project.revelationary_version}")
 	modImplementation include("maven.modrinth:AdditionalEntityAttributes:${project.additional_entity_attributes_version}")
 	modImplementation include("com.github.DaFuqs:Arrowhead:${project.arrowhead_version}")

src/main/java/de/dafuqs/spectrum/compat/SpectrumIntegrationPacks.java

@@ -5,6 +5,7 @@
 import de.dafuqs.spectrum.compat.alloy_forgery.*;
 import de.dafuqs.spectrum.compat.botania.*;
 import de.dafuqs.spectrum.compat.create.*;
+import de.dafuqs.spectrum.compat.exclusions_lib.*;
 import de.dafuqs.spectrum.compat.farmersdelight.*;
 import de.dafuqs.spectrum.compat.gobber.*;
 import de.dafuqs.spectrum.compat.malum.*;
@@ -44,6 +45,7 @@ protected static void registerIntegrationPack(String modId, Supplier<ModIntegrat
 	public static final String FARMERSDELIGHT_ID = "farmersdelight";
 	public static final String NEEPMEAT_ID = "neepmeat";
 	public static final String MALUM_ID = "malum";
+	public static final String EXCLUSIONS_LIB_ID = "exclusions_lib";
 
 	@SuppressWarnings("Convert2MethodRef")
 	public static void register() {
@@ -63,6 +65,10 @@ public static void register() {
 		for (ModIntegrationPack container : INTEGRATION_PACKS.values()) {
 			container.register();
 		}
+		
+		if (!FabricLoader.getInstance().isModLoaded(EXCLUSIONS_LIB_ID)) {
+			ExclusionsLibCompat.registerNotPresent();
+		}
 	}
 
 	@Environment(EnvType.CLIENT)

src/main/java/de/dafuqs/spectrum/compat/exclusions_lib/ExclusionsLibCompat.java

@@ -0,0 +1,40 @@
+package de.dafuqs.spectrum.compat.exclusions_lib;
+
+import com.mojang.serialization.*;
+import de.dafuqs.spectrum.compat.*;
+import net.minecraft.registry.*;
+import net.minecraft.util.*;
+import net.minecraft.util.math.*;
+import net.minecraft.world.*;
+import net.minecraft.world.gen.blockpredicate.*;
+
+/**
+ * Loaded when Exclusions Lib is *not* present
+ * So the game can be loaded without complaining about a missing Block Predicate
+ */
+public class ExclusionsLibCompat {
+	
+	static class AlwaysFalseBlockPredicate implements BlockPredicate {
+		
+		public static AlwaysFalseBlockPredicate instance = new AlwaysFalseBlockPredicate();
+		public static final Codec<AlwaysFalseBlockPredicate> CODEC = Codec.unit(() -> instance);
+		
+		private AlwaysFalseBlockPredicate() {
+		}
+		
+		public boolean test(StructureWorldAccess structureWorldAccess, BlockPos blockPos) {
+			return false;
+		}
+		
+		public BlockPredicateType<?> getType() {
+			return BlockPredicateType.TRUE;
+		}
+	}
+	
+	public static BlockPredicateType<AlwaysFalseBlockPredicate> OVERLAPS_STRUCTURE_DUMMY;
+	
+	public static void registerNotPresent() {
+		OVERLAPS_STRUCTURE_DUMMY = Registry.register(Registries.BLOCK_PREDICATE_TYPE, Identifier.of(SpectrumIntegrationPacks.EXCLUSIONS_LIB_ID, "overlaps_structure"), () -> AlwaysFalseBlockPredicate.CODEC);
+	}
+	
+}

src/main/resources/fabric.mod.json

@@ -78,16 +78,16 @@
     "cloth-config": "*",
 		"modonomicon": ">=1.77.3",
     "trinkets": "*",
-    "matchbooks": "*",
-    "exclusions_lib": "*"
+		"matchbooks": "*"
   },
   "suggests": {
     "chalk": "*",
     "chalk-colorful-addon": "*",
     "paginatedadvancements": "*",
     "ants": "*",
     "bettercombat": "*",
-    "continuity": "*"
+		"continuity": "*",
+		"exclusions_lib": "*"
   },
   "breaks": {
     "idwtialsimmoedm": "<0.3.0-"