Adds fading for the oxygen bar.

This should fix #2. Thanks, @Reddy64!

.github/workflows/build.yml

@@ -12,9 +12,9 @@ jobs:
       matrix:
         # Use these Java versions
         java: [
-          1.16,  # Minimum supported by Minecraft
-          16,   # Current Java LTS
-          16    # Latest version
+          1.17,  # Minimum supported by Minecraft
+          17,   # Current Java LTS
+          17    # Latest version
         ]
         # and run on both Linux and Windows
         os: [ubuntu-20.04, windows-latest]

.gitignore

@@ -34,3 +34,8 @@ run/
 /logs/
 local.properties
 remappedSrc/
+MinecraftImmersiveHUD.mcpack
+manifest.json
+pack_icon.png
+scripts/
+subpacks/

build.gradle

@@ -1,10 +1,10 @@
 plugins {
-	id 'fabric-loom' version '0.8-SNAPSHOT'
+	id 'fabric-loom' version '0.11-SNAPSHOT'
 	id 'maven-publish'
 }
 
-sourceCompatibility = JavaVersion.VERSION_16
-targetCompatibility = JavaVersion.VERSION_16
+sourceCompatibility = JavaVersion.VERSION_17
+targetCompatibility = JavaVersion.VERSION_17
 
 archivesBaseName = project.archives_base_name
 version = project.mod_version + "-" + project.minecraft_version + "-fabric"
@@ -24,6 +24,8 @@ dependencies {
 	modApi "me.shedaniel.cloth:cloth-config-fabric:${project.cloth_version}"
 	modImplementation "com.terraformersmc:modmenu:${project.modmenu_version}"
 
+	// Fabric API. This is technically optional, but you probably want it anyway.
+	modImplementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_version}"
 	// PSA: Some older mods, compiled on Loom 0.2.1, might have outdated Maven POMs.
 	// You may need to force-disable transitiveness on them.
 }
@@ -43,8 +45,8 @@ tasks.withType(JavaCompile).configureEach {
 	// If Javadoc is generated, this must be specified in that task too.
 	it.options.encoding = "UTF-8"
 
-	// Minecraft 1.17 (21w19a) upwards uses Java 16.
-	it.options.release = 16
+	// Minecraft 1.18 (1.18-pre2) upwards uses Java 17.
+	it.options.release = 17
 }
 
 java {

gradle.properties

@@ -1,16 +1,17 @@
 # Done to increase the memory available to gradle.
-org.gradle.jvmargs=-Xmx1G
+org.gradle.jvmargs=-Xmx4G
 
 # Fabric Properties
 	# check these on https://fabricmc.net/use
-	minecraft_version=1.17
-	yarn_mappings=1.17+build.1
-	loader_version=0.11.3
+	minecraft_version=1.18.1
+	yarn_mappings=1.18.1+build.22
+	loader_version=0.12.12
 
-cloth_version=5.0.34
-modmenu_version=2.0.2
+cloth_version=6.1.48
+modmenu_version=3.0.1
+fabric_version=0.46.2+1.18
 
 # Mod Properties
-	mod_version = 1.2
+	mod_version = 1.3
 	maven_group = markil3
 	archives_base_name = immersive_hud

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,7 +1,7 @@
-#!/usr/bin/env sh
+#!/bin/sh
 
 #
-# Copyright 2015 the original author or authors.
+# Copyright © 2015-2021 the original authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,67 +17,101 @@
 #
 
 ##############################################################################
-##
-##  Gradle start up script for UN*X
-##
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
 ##############################################################################
 
 # Attempt to set APP_HOME
+
 # Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-        PRG="$link"
-    else
-        PRG=`dirname "$PRG"`"/$link"
-    fi
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
 done
-SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >/dev/null
-APP_HOME="`pwd -P`"
-cd "$SAVED" >/dev/null
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
 APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
+APP_BASE_NAME=${0##*/}
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
+MAX_FD=maximum
 
 warn () {
     echo "$*"
-}
+} >&2
 
 die () {
     echo
     echo "$*"
     echo
     exit 1
-}
+} >&2
 
 # OS specific support (must be 'true' or 'false').
 cygwin=false
 msys=false
 darwin=false
 nonstop=false
-case "`uname`" in
-  CYGWIN* )
-    cygwin=true
-    ;;
-  Darwin* )
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-  NONSTOP* )
-    nonstop=true
-    ;;
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
 esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
@@ -87,9 +121,9 @@ CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
         # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD="$JAVA_HOME/jre/sh/java"
+        JAVACMD=$JAVA_HOME/jre/sh/java
     else
-        JAVACMD="$JAVA_HOME/bin/java"
+        JAVACMD=$JAVA_HOME/bin/java
     fi
     if [ ! -x "$JAVACMD" ] ; then
         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
@@ -98,7 +132,7 @@ Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
     fi
 else
-    JAVACMD="java"
+    JAVACMD=java
     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
@@ -106,80 +140,95 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
-    MAX_FD_LIMIT=`ulimit -H -n`
-    if [ $? -eq 0 ] ; then
-        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
-            MAX_FD="$MAX_FD_LIMIT"
-        fi
-        ulimit -n $MAX_FD
-        if [ $? -ne 0 ] ; then
-            warn "Could not set maximum file descriptor limit: $MAX_FD"
-        fi
-    else
-        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
-    fi
-fi
-
-# For Darwin, add options to specify how the application appears in the dock
-if $darwin; then
-    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
-fi
-
-# For Cygwin or MSYS, switch paths to Windows format before running java
-if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
-    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
-    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
-
-    JAVACMD=`cygpath --unix "$JAVACMD"`
-
-    # We build the pattern for arguments to be converted via cygpath
-    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
-    SEP=""
-    for dir in $ROOTDIRSRAW ; do
-        ROOTDIRS="$ROOTDIRS$SEP$dir"
-        SEP="|"
-    done
-    OURCYGPATTERN="(^($ROOTDIRS))"
-    # Add a user-defined pattern to the cygpath arguments
-    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
-        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
-    fi
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    i=0
-    for arg in "$@" ; do
-        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
-        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
-
-        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
-            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
-        else
-            eval `echo args$i`="\"$arg\""
-        fi
-        i=`expr $i + 1`
-    done
-    case $i in
-        0) set -- ;;
-        1) set -- "$args0" ;;
-        2) set -- "$args0" "$args1" ;;
-        3) set -- "$args0" "$args1" "$args2" ;;
-        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
 fi
 
-# Escape application args
-save () {
-    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
-    echo " "
-}
-APP_ARGS=`save "$@"`
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
 
-# Collect all arguments for the java command, following the shell quoting and substitution rules
-eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
 
 exec "$JAVACMD" "$@"

src/main/java/markil3/immersive_hud/ConfigManager.java

@@ -2,6 +2,8 @@ package markil3.immersive_hud;
 
 import static markil3.immersive_hud.Main.TICKS_PER_SECOND;
 
+import net.minecraft.block.Block;
+import net.minecraft.block.Blocks;
 import net.minecraft.item.Item;
 import net.minecraft.item.Items;
 import net.minecraft.util.Identifier;
@@ -88,6 +90,7 @@ public class ConfigManager
     private TimeValues jumpTime = new TimeValues();
     private TimeValues healthTime = new TimeValues();
     private TimeValues hungerTime = new TimeValues();
+    private TimeValues airTime = new TimeValues();
     private TimeValues effectTime = new TimeValues();
     private int crosshairTime = 6 * TICKS_PER_SECOND;
     private boolean hideCrosshair = true;
@@ -96,7 +99,9 @@ public class ConfigManager
     private boolean showArmor = true;
     private double minHealth = 0.5;
     private int minHunger = 17;
+    private int minAir = 300;
     private Identifier[] ignoredItems = new Identifier[]{Registry.ITEM.getId(Items.FIREWORK_ROCKET)};
+    private Identifier[] enchantingBlocks = new Identifier[]{Registry.BLOCK.getId(Blocks.ENCHANTING_TABLE), Registry.BLOCK.getId(Blocks.ANVIL), Registry.BLOCK.getId(Blocks.BOOKSHELF), Registry.BLOCK.getId(Blocks.FURNACE), Registry.BLOCK.getId(Blocks.BLAST_FURNACE), Registry.BLOCK.getId(Blocks.SMOKER), Registry.BLOCK.getId(Blocks.GRINDSTONE)};
 
     /**
      * Returns the instance of this class.
@@ -175,6 +180,11 @@ public class ConfigManager
         return this.hungerTime;
     }
     
+    public TimeValues getAirTime()
+    {
+        return this.airTime;
+    }
+
     /**
      * Obtains time values related to potion effects.
      *
@@ -256,6 +266,17 @@ public class ConfigManager
         return this.minHunger;
     }
     
+    /**
+     * Obtains the minimum oxygen for fading. Anything below that and the oxygen
+     * always displays.
+     *
+     * @return The oxygen boundary, from 0 to 20.
+     */
+    public int getMinAir()
+    {
+        return this.minAir;
+    }
+
     /**
      * Obtains a collection of items that won't cause hands and crosshairs to show when used.
      *
@@ -276,6 +297,26 @@ public class ConfigManager
         return this.ignoredItems;
     }
 
+    /**
+     * Obtains a collection of items that will display the enchantment bar when hovered over.
+     *
+     * @return A set of blocks.
+     */
+    public Set<Block> getEnchantingItems()
+    {
+        return Arrays.stream(enchantingBlocks).map(Registry.BLOCK::get).collect(Collectors.toSet());
+    }
+
+    /**
+     * Obtains a collection of items that will display the enchantment bar when hovered over.
+     *
+     * @return An array blocks.
+     */
+    public Identifier[] getEnchantingdentifiers()
+    {
+        return this.enchantingBlocks;
+    }
+
     /**
      * Sets the time that the hands are allowed to display.
      *
@@ -348,6 +389,17 @@ public class ConfigManager
         this.minHunger = MathHelper.clamp(boundary, 0, 20);
     }
     
+    /**
+     * Sets the minimum oxygen value for fading. Anything below that and the
+     * air bar always displays.
+     *
+     * @param boundary - The air boundary, from 0 to 20.
+     */
+    public void setMinAir(int boundary)
+    {
+        this.minAir = MathHelper.clamp(boundary, 0, 20);
+    }
+
     /**
      * Sets which items won't cause the hands and crosshairs to show when used.
      *
@@ -367,6 +419,27 @@ public class ConfigManager
     {
         this.ignoredItems = Arrays.stream(items).map(Identifier::new).filter(i -> Registry.ITEM.getOrEmpty(i).isPresent()).toArray(Identifier[]::new);
     }
+
+    /**
+     * Sets which items will display the experience bar when hovered over.
+     *
+     * @param items - A set of ignored items.
+     */
+    public void setEnchantingItems(Block... items)
+    {
+        this.enchantingBlocks = Arrays.stream(items).map(Registry.BLOCK::getId).toArray(Identifier[]::new);
+    }
+
+    /**
+     * Sets which items won't cause the hands and crosshairs to show when used.
+     *
+     * @param items - A set of ignored items.
+     */
+    public void setEnchantingItems(String... items)
+    {
+        this.enchantingBlocks = Arrays.stream(items).map(Identifier::new).filter(i -> Registry.BLOCK.getOrEmpty(i).isPresent()).toArray(Identifier[]::new);
+    }
+
 /**
      * Saves changes to this mod's configuration.
      */

src/main/java/markil3/immersive_hud/ModMenu.java

@@ -3,6 +3,7 @@ package markil3.immersive_hud;
 import com.terraformersmc.modmenu.api.ConfigScreenFactory;
 import com.terraformersmc.modmenu.api.ModMenuApi;
 
+import net.minecraft.block.Blocks;
 import net.minecraft.item.Items;
 import net.minecraft.text.TranslatableText;
 import net.minecraft.util.Identifier;
@@ -124,6 +125,9 @@ public class ModMenu implements ModMenuApi
             startTimeField("hunger", entryBuilder,
                     general,
                     instance.getHungerTime());
+            startTimeField("air", entryBuilder,
+                    general,
+                    instance.getAirTime());
             startTimeField("effect", entryBuilder,
                     general,
                     instance.getPotionTime());
@@ -184,6 +188,15 @@ public class ModMenu implements ModMenuApi
                     .setSaveConsumer(val -> instance.setMinHunger(val))
                     .build());
     
+            general.addEntry(entryBuilder.startIntField(new TranslatableText(
+                                    "option.immersive_hud.minAir"),
+                            instance.getMinAir())
+                    .setDefaultValue(300)
+                    .setTooltip(new TranslatableText(
+                            "tooltip.immersive_hud.minAir"))
+                    .setSaveConsumer(val -> instance.setMinAir(val))
+                    .build());
+
             general.addEntry(entryBuilder.startBooleanToggle(new TranslatableText(
                             "option.immersive_hud.showArmor"),
                     instance.shouldShowArmor())
@@ -218,6 +231,31 @@ public class ModMenu implements ModMenuApi
                     })
                     .build());
 
+            general.addEntry(entryBuilder
+                    .startStrList(new TranslatableText("option.immersive_hud.enchantingList"), Arrays
+                            .asList(instance
+                                    .getEnchantingdentifiers()).stream().map(Identifier::toString)
+                            .collect(Collectors.toList()))
+                    .setDefaultValue(Arrays
+                            .asList(Blocks.ENCHANTING_TABLE, Blocks.ANVIL, Blocks.BOOKSHELF, Blocks.FURNACE, Blocks.BLAST_FURNACE, Blocks.SMOKER, Blocks.GRINDSTONE).stream().map(b -> Registry.BLOCK.getId(b).toString()).toList())
+                    .setTooltip(new TranslatableText("tooltip.immersive_hud.enchantingList"))
+                    .setSaveConsumer(val -> instance.setIgnoredItems(val.toArray(new String[0]))).setErrorSupplier(val -> {
+                        try
+                        {
+                            Optional<String> item = val.stream().filter(i -> !Registry.BLOCK.getOrEmpty(new Identifier(i)).isPresent()).findFirst();
+                            if (item.isPresent())
+                            {
+                                return Optional.of(new TranslatableText("error.immersive_hud.ignoreList.unknownItem"));
+                            }
+                        }
+                        catch (InvalidIdentifierException e)
+                        {
+                            return Optional.of(new TranslatableText("error.immersive_hud.ignoreList.illegalId"));
+                        }
+                        return Optional.empty();
+                    })
+                    .build());
+
             return builder.build();
         };
     }

src/main/java/markil3/immersive_hud/TimerUtils.java

@@ -18,6 +18,8 @@ package markil3.immersive_hud;
 
 import com.mojang.blaze3d.systems.RenderSystem;
 
+import net.minecraft.block.Block;
+import net.minecraft.block.Blocks;
 import net.minecraft.client.MinecraftClient;
 import net.minecraft.client.network.ClientPlayerEntity;
 import net.minecraft.client.util.math.MatrixStack;
@@ -41,6 +43,7 @@ import net.minecraft.item.SnowballItem;
 import net.minecraft.item.ThrowablePotionItem;
 import net.minecraft.item.TridentItem;
 import net.minecraft.util.Hand;
+import net.minecraft.util.hit.BlockHitResult;
 import net.minecraft.util.hit.EntityHitResult;
 import net.minecraft.util.hit.HitResult;
 import net.minecraft.util.math.MathHelper;
@@ -128,11 +131,21 @@ public class TimerUtils
      * in hunger.
      */
     private static int hunger = -1;
+    /**
+     * Records what the oxygen level was previously. Used to check for a change
+     * in oxygen.
+     */
+    private static int air = -1;
     /**
      * Records whether or not there was food poisoning. Used to check for a
      * change in hunger.
      */
     private static boolean isFoodPoisoned = false;
+    /**
+     * How many more ticks the oxygen bar will be onscreen. Every tick is 1/20th
+     * of a second.
+     */
+    private static double airTime;
 
     /**
      * How many more ticks the mount's health bar will be onscreen. Every tick
@@ -253,6 +266,8 @@ public class TimerUtils
                 ConfigManager.getInstance().getJumpTime();
         ConfigManager.TimeValues healthTimes = ConfigManager.getInstance().getHealthTime();
         ConfigManager.TimeValues hungerTimes = ConfigManager.getInstance().getHungerTime();
+        ConfigManager.TimeValues airTimes =
+                ConfigManager.getInstance().getAirTime();
 
         float hotbarAlpha = Main.getAlpha(hotbarTime,
                 hotbar.getMaxTime(),
@@ -274,13 +289,24 @@ public class TimerUtils
                 hungerTimes.getMaxTime(),
                 hungerTimes.getFadeInTime(),
                 hungerTimes.getFadeOutTime()));
+        statusAlpha = Math.max(statusAlpha, Main.getAlpha(airTime,
+                airTimes.getMaxTime(),
+                airTimes.getFadeInTime(),
+                airTimes.getFadeOutTime()));
         /*
          * Draw it in its standard location until it is completely transparent, then move it
          * instantly.
          */
         statusAlpha = (float) Math.ceil(statusAlpha);
-        return 7 * (1 - Math.max(experienceAlpha,
-                jumpAlpha)) + 22 * (1 - hotbarAlpha) + 42 * (1 - statusAlpha);
+        float trans = 7 * (1 - Math.max(experienceAlpha,
+                jumpAlpha)) + 22 * (1 - hotbarAlpha) + 42 * (1 - statusAlpha) +  9 * (1 - Math.max(Main.getAlpha(hungerTime,
+                hungerTimes.getMaxTime(),
+                hungerTimes.getFadeInTime(),
+                hungerTimes.getFadeOutTime()), Main.getAlpha(healthTime,
+                healthTimes.getMaxTime(),
+                healthTimes.getFadeInTime(),
+                healthTimes.getFadeOutTime())));
+        return trans;
     }
 
     /**
@@ -846,6 +872,93 @@ public class TimerUtils
                 .hasStatusEffect(StatusEffects.HUNGER);
     }
     
+    /**
+     * Determines whether or not to draw the oxygen bar, adjusting the alpha as
+     * needed.
+     *
+     * @return If true, then cancel drawing the oxygen bar.
+     *
+     * @since 1.3.1-1.18-fabric
+     */
+    public static boolean drawAir(float ticks)
+    {
+        /*
+         * When air falls to this level or below, the oxygen bar won't
+         * disappear, allowing the player to be constantly reminded of their
+         * low oxygen.
+         */
+        final int AIR_BOUNDARY = ConfigManager.getInstance().getMinAir();
+        ConfigManager.TimeValues airTimes =
+                ConfigManager.getInstance().getAirTime();
+    
+        MinecraftClient mc = MinecraftClient.getInstance();
+        PlayerEntity entity;
+        boolean canceled;
+        boolean changed = false;
+    
+        if (mc.getCameraEntity() instanceof PlayerEntity)
+        {
+            entity = (PlayerEntity) mc.getCameraEntity();
+        }
+        else
+        {
+            return true;
+        }
+    
+        if (air != entity.getAir())
+        {
+            float dividor = entity.getMaxAir() / 10;
+            if (air / dividor != entity.getAir() / dividor)
+            {
+                changed = true;
+            }
+            air = entity.getAir();
+        }
+        if (air <= AIR_BOUNDARY)
+        {
+            changed = true;
+        }
+        if (entity.hasStatusEffect(StatusEffects
+                .CONDUIT_POWER) || entity.hasStatusEffect(StatusEffects
+                .WATER_BREATHING))
+        {
+            changed = false;
+        }
+        if (changed)
+        {
+            airTime = airTimes.getMaxTime() - (airTime > 0 ?
+                    airTimes.getFadeInTime() :
+                    0);
+        }
+        else if (airTime > 0)
+        {
+            airTime -= ticks;
+        }
+    
+        if (airTime <= 0 && (air >= AIR_BOUNDARY || entity.hasStatusEffect(StatusEffects
+                .CONDUIT_POWER) || entity.hasStatusEffect(StatusEffects
+                .WATER_BREATHING)))
+        {
+            return true;
+        }
+        /*
+         * Only makes a change if the player is healthy. Otherwise,
+         * the bar is shown.
+         */
+        if (entity.getAir() >= entity.getMaxAir() || entity.hasStatusEffect(StatusEffects
+                .CONDUIT_POWER) || entity.hasStatusEffect(StatusEffects
+                .WATER_BREATHING))
+        {
+            setAlpha(Main.getAlpha(airTime,
+                    airTimes.getMaxTime(),
+                    airTimes.getFadeInTime(),
+                    airTimes.getFadeOutTime()));
+        }
+        return airTime == 0 && entity.getAir() >= entity.getMaxAir() && !entity.hasStatusEffect(StatusEffects
+                .CONDUIT_POWER) && !entity.hasStatusEffect(StatusEffects
+                .WATER_BREATHING);
+    }
+
     /**
      * Determines whether or not to draw the horse jump bar, adjusting the alpha
      * as needed.
@@ -926,16 +1039,28 @@ public class TimerUtils
             experienceProgress = entity.totalExperience;
             changed = true;
         }
+
+        if (experienceTime <= 0 && mc.crosshairTarget != null && mc.crosshairTarget.getType() == HitResult.Type.BLOCK)
+        {
+            Block block = mc.world.getBlockState(((BlockHitResult) mc.crosshairTarget).getBlockPos()).getBlock();
+            Set<Block> ignored = ConfigManager.getInstance().getEnchantingItems();
+            if (ignored.contains(block))
+            {
+                changed = true;
+            }
+        }
+
         if (changed)
         {
             experienceTime = experience.getMaxTime() - (experienceTime > 0 ?
-                                                        experience.getFadeInTime() :
-                                                        0);
+                    experience.getFadeInTime() :
+                    0);
         }
         else if (experienceTime > 0)
         {
             experienceTime -= ticks;
         }
+
         if (experienceTime > 0)
         {
             stack.push();

src/main/java/markil3/immersive_hud/mixin/HudHook.java

@@ -253,8 +253,9 @@ public class HudHook
     {
         try
         {
+            float trans = TimerUtils.getHealthTranslation();
             stack.push();
-            stack.translate(0F, TimerUtils.getHealthTranslation(), 0F);
+            stack.translate(0F, trans, 0F);
         }
         catch (Exception e)
         {
@@ -381,6 +382,10 @@ public class HudHook
              * Resets the color so that nothing else is bothered.
              */
             TimerUtils.setAlpha(1F);
+            if (TimerUtils.drawAir(MinecraftClient.getInstance().getTickDelta()))
+            {
+                TimerUtils.setAlpha(0F);
+            }
         }
         catch (Exception e)
         {
@@ -398,6 +403,7 @@ public class HudHook
     {
         try
         {
+            TimerUtils.setAlpha(1F);
             stack.pop();
         }
         catch (Exception e)

src/main/resources/assets/immersive_hud/lang/en_us.json

@@ -15,6 +15,9 @@
   "option.immersive_hud.hungerMaxTime": "Hunger Bar Display Time",
   "option.immersive_hud.hungerFadeIn": "Hunger Bar Fade In Time",
   "option.immersive_hud.hungerFadeOut": "Hunger Bar Fade Out Time",
+  "option.immersive_hud.airMaxTime": "Oxygen Bar Display Time",
+  "option.immersive_hud.airFadeIn": "Oxygen Bar Fade In Time",
+  "option.immersive_hud.airFadeOut": "Oxygen Bar Fade Out Time",
   "option.immersive_hud.effectMaxTime": "Potion Display Time",
   "option.immersive_hud.effectFadeIn": "Potion Fade In Time",
   "option.immersive_hud.effectFadeOut": "Potion Fade Out Time",
@@ -24,8 +27,10 @@
   "option.immersive_hud.hideHands": "Hide Hands",
   "option.immersive_hud.minHealth": "Minimum Health Fade",
   "option.immersive_hud.minHunger": "Minimum Hunger Fade",
+  "option.immersive_hud.minAir": "Minimum Oxygen Fade",
   "option.immersive_hud.showArmor": "Show Armor",
   "option.immersive_hud.ignoreList": "Ignored Items",
+  "option.immersive_hud.enchantingList": "Experience Blocks",
   "tooltip.immersive_hud.hotbarMaxTime": "How long the hotbar can be displayed on screen in seconds",
   "tooltip.immersive_hud.hotbarFadeIn": "How many seconds it takes for the hotbar to fade in",
   "tooltip.immersive_hud.hotbarFadeOut": "How many seconds it takes for the hotbar to move out",
@@ -41,6 +46,9 @@
   "tooltip.immersive_hud.hungerMaxTime": "How long the hunger bar can be displayed on screen in seconds",
   "tooltip.immersive_hud.hungerFadeIn": "How many seconds it takes for the hunger bar to fade in",
   "tooltip.immersive_hud.hungerFadeOut": "How many seconds it takes for the hunger bar to fade out",
+  "tooltip.immersive_hud.airMaxTime": "How long the hunger bar can be oxygen on screen in seconds",
+  "tooltip.immersive_hud.airFadeIn": "How many seconds it takes for the oxygen bar to fade in",
+  "tooltip.immersive_hud.airFadeOut": "How many seconds it takes for the oxygen bar to fade out",
   "tooltip.immersive_hud.effectMaxTime": "How long potion icons can be displayed on screen in seconds",
   "tooltip.immersive_hud.effectFadeIn": "How many seconds it takes for potion icons to fade in",
   "tooltip.immersive_hud.effectFadeOut": "How many seconds it takes for potion icons to fade out",
@@ -50,8 +58,10 @@
   "tooltip.immersive_hud.hideHands": "Whether or not hands should be hidden after a period of time",
   "tooltip.immersive_hud.minHealth": "When the percentage of health goes below this level, the health bar won't fade away",
   "tooltip.immersive_hud.minHunger": "When the hunger level goes below this level, the hunger bar won't fade away",
+  "tooltip.immersive_hud.minAir": "When the oxygen level goes below this level, the oxygen bar won't fade away",
   "tooltip.immersive_hud.showArmor": "Whether or not the armor bar should display on the HUD",
   "tooltip.immersive_hud.ignoreList": "Which items will not trigger the arm and crosshairs when used",
+  "tooltip.immersive_hud.enchantingList": "Which blocks will show the experience bar when looked at.",
   "error.immersive_hud.ignoreList.unknownItem": "Unknown item %s",
   "error.immersive_hud.ignoreList.illegalId": "%s is not a legal item identifier"
 }

src/main/resources/fabric.mod.json

@@ -34,9 +34,9 @@
   ],
 
   "depends": {
-    "fabricloader": ">=0.11.3",
-    "minecraft": "1.17.x",
-    "java": ">=16"
+    "fabricloader": ">=0.12.12",
+    "minecraft": "1.18.x",
+    "java": ">=17"
   },
   "suggests": {
     "modmenu": "*",