Make first working version (Time not work in Bad Air)

src/main/java/ru/bitheaven/createairfabric/CreateAirFabric.java

@@ -0,0 +1,35 @@
+package ru.bitheaven.createairfabric;
+
+import com.simibubi.create.Create;
+import fuzs.thinair.helper.AirHelper;
+import fuzs.thinair.helper.AirQualityLevel;
+import io.github.fabricators_of_create.porting_lib.util.EnvExecutor;
+import net.fabricmc.api.ModInitializer;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.entity.LivingEntity;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class CreateAirFabric implements ModInitializer {
+    public static final String ID = "createairfabric";
+    public static final String NAME = "Create Air Fabric";
+    public static final Logger LOGGER = LoggerFactory.getLogger(NAME);
+
+    @Override
+    public void onInitialize() {
+        LOGGER.info("Create addon mod [{}] is loading alongside Create [{}]!", NAME, Create.VERSION);
+        LOGGER.info(EnvExecutor.unsafeRunForDist(
+                () -> () -> "{} is accessing Porting Lib from the client!",
+                () -> () -> "{} is accessing Porting Lib from the server!"
+        ), NAME);
+    }
+
+    public static boolean airQualityActivatesHelmet(LivingEntity entity) {
+        final var air = AirHelper.getO2LevelFromLocation(entity.getEyePosition(), entity.level()).getFirst();
+        return air == AirQualityLevel.RED || air == AirQualityLevel.YELLOW;
+    }
+
+    public static ResourceLocation id(String path) {
+        return new ResourceLocation(ID, path);
+    }
+}

src/main/java/ru/bitheaven/createairfabric/mixin/DivingHelmetItemMixin.java

@@ -0,0 +1,26 @@
+package ru.bitheaven.createairfabric.mixin;
+
+import fuzs.thinair.helper.AirHelper;
+import fuzs.thinair.helper.AirQualityLevel;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.level.material.Fluid;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import ru.bitheaven.createairfabric.CreateAirFabric;
+import com.simibubi.create.content.equipment.armor.DivingHelmetItem;
+
+import net.minecraft.world.entity.LivingEntity;
+
+@Mixin(DivingHelmetItem.class)
+public abstract class DivingHelmetItemMixin {
+    /**
+     * Activate helmet "if in water or lava" -> "if in water or bad air or lava"
+     */
+    @Redirect(at = @At(value = "INVOKE", target = "Lnet/minecraft/world/entity/LivingEntity;isEyeInFluid(Lnet/minecraft/tags/TagKey;)Z"),
+            method = "breatheUnderwater(Lnet/minecraft/world/entity/LivingEntity;)V")
+    private static boolean redirectBreatheUnderwater(LivingEntity entity, TagKey<Fluid> fluidTagKey) {
+        return entity.isEyeInFluid(fluidTagKey) || CreateAirFabric.airQualityActivatesHelmet(entity);
+    }
+}

src/main/java/ru/bitheaven/createairfabric/mixin/MinecraftMixin.java

@@ -0,0 +1,20 @@
+package ru.bitheaven.createairfabric.mixin;
+
+import ru.bitheaven.createairfabric.CreateAirFabric;
+
+import net.minecraft.client.Minecraft;
+
+import net.minecraft.client.main.GameConfig;
+
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(Minecraft.class)
+public class MinecraftMixin {
+    @Inject(method = "<init>", at = @At("TAIL"))
+    private void example$init(GameConfig gameConfig, CallbackInfo ci) {
+        CreateAirFabric.LOGGER.info("Hello from {}", CreateAirFabric.NAME);
+    }
+}

src/main/resources/createairfabric.mixins.json

@@ -0,0 +1,15 @@
+{
+  "required": true,
+  "minVersion": "0.8",
+  "package": "ru.bitheaven.createairfabric.mixin",
+  "compatibilityLevel": "JAVA_17",
+  "mixins": [
+    "DivingHelmetItemMixin"
+  ],
+  "client": [
+    "MinecraftMixin"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  }
+}

src/main/resources/fabric.mod.json

@@ -4,15 +4,28 @@
   "version": "${version}",
   "name": "Create Air Fabric",
   "description": "Addon for compatibility Create and Thin Air",
-  "authors": [],
-  "contact": {},
+  "authors": [
+    "BitHeaven"
+  ],
+  "contact": {
+    "website": "https://bitheaven.ru",
+    "repo": "https://git.bitheaven.ru/bitheaven/create-air-fabric"
+  },
   "license": "GPL-3.0",
   "icon": "assets/createairfabric/icon.png",
   "environment": "*",
-  "entrypoints": {},
+  "entrypoints": {
+    "main": [
+      "ru.bitheaven.createairfabric.CreateAirFabric"
+    ]
+  },
+  "mixins": [
+    "createairfabric.mixins.json"
+  ],
   "depends": {
-    "fabricloader": ">=${loader_version}",
+    "fabricloader": ">=${fabric_loader_version}",
     "fabric": "*",
-    "minecraft": "${minecraft_version}"
+    "minecraft": "${minecraft_version}",
+    "create": "${create_version}"
   }
 }