Initial Commit

.gitignore

@@ -0,0 +1,119 @@
+# User-specific stuff
+.idea/
+.gradle/
+
+*.iml
+*.ipr
+*.iws
+
+# IntelliJ
+out/
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+.gradle
+build/
+
+# Ignore Gradle GUI config
+gradle-app.setting
+
+# Cache of project
+.gradletasknamecache
+
+**/build/
+
+# Common working directory
+run/
+
+# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
+!gradle-wrapper.jar

build.gradle

@@ -0,0 +1,47 @@
+plugins {
+    id 'java'
+}
+
+group = 'app.simplexdev'
+version = '1.0'
+
+repositories {
+    mavenCentral()
+    maven {
+        name = "spigotmc-repo"
+        url = "https://hub.spigotmc.org/nexus/content/repositories/snapshots/"
+    }
+    maven {
+        name = "sonatype"
+        url = "https://oss.sonatype.org/content/groups/public/"
+    }
+}
+
+dependencies {
+    compileOnly "org.spigotmc:spigot-api:1.20.1-R0.1-SNAPSHOT"
+}
+
+def targetJavaVersion = 17
+java {
+    def javaVersion = JavaVersion.toVersion(targetJavaVersion)
+    sourceCompatibility = javaVersion
+    targetCompatibility = javaVersion
+    if (JavaVersion.current() < javaVersion) {
+        toolchain.languageVersion = JavaLanguageVersion.of(targetJavaVersion)
+    }
+}
+
+tasks.withType(JavaCompile).configureEach {
+    if (targetJavaVersion >= 10 || JavaVersion.current().isJava10Compatible()) {
+        options.release = targetJavaVersion
+    }
+}
+
+processResources {
+    def props = [version: version]
+    inputs.properties props
+    filteringCharset 'UTF-8'
+    filesMatching('plugin.yml') {
+        expand props
+    }
+}

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.1.1-bin.zip
+networkTimeout=10000
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,245 @@
+#!/bin/sh
+
+#
+# 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.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   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/HEAD/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
+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
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&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  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$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
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$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
+
+
+# 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"'
+
+# 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 "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# 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 "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'ArcanumOcculta'

src/main/java/app/simplexdev/arcanumocculta/ArcanumOcculta.java

@@ -0,0 +1,17 @@
+package app.simplexdev.arcanumocculta;
+
+import org.bukkit.plugin.java.JavaPlugin;
+
+public final class ArcanumOcculta extends JavaPlugin {
+
+    @Override
+    public void onEnable() {
+        // Plugin startup logic
+
+    }
+
+    @Override
+    public void onDisable() {
+        // Plugin shutdown logic
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/api/book/SpellBook.java

@@ -0,0 +1,32 @@
+package app.simplexdev.arcanumocculta.api.book;
+
+import app.simplexdev.arcanumocculta.api.spell.Spell;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.List;
+
+public interface SpellBook {
+    String getBookName();
+
+    void setBookName(final String name);
+
+    String getBookDescription();
+
+    void setBookDescription(final String description);
+
+    ItemStack getBookItem();
+
+    void setBookItem(final ItemStack itemStack);
+
+    List<Spell> getSpells();
+
+    void addSpell(Spell spell);
+
+    void removeSpell(Spell spell);
+
+    Spell getSpell(final String name);
+
+    Spell getSpell(final int index);
+
+    int getSpellCount();
+}

src/main/java/app/simplexdev/arcanumocculta/api/book/SpellTome.java

@@ -0,0 +1,14 @@
+package app.simplexdev.arcanumocculta.api.book;
+
+import app.simplexdev.arcanumocculta.api.spell.Spell;
+import org.bukkit.inventory.ItemStack;
+
+public interface SpellTome {
+    String getTomeName();
+
+    String getTomeDescription();
+
+    ItemStack getTomeItem();
+
+    Spell getContainedSpell();
+}

src/main/java/app/simplexdev/arcanumocculta/api/effect/CompoundEffect.java

@@ -0,0 +1,7 @@
+package app.simplexdev.arcanumocculta.api.effect;
+
+import org.bukkit.potion.PotionEffectType;
+
+public interface CompoundEffect extends Effect {
+    PotionEffectType[] getEffectTypes();
+}

src/main/java/app/simplexdev/arcanumocculta/api/effect/Effect.java

@@ -0,0 +1,14 @@
+package app.simplexdev.arcanumocculta.api.effect;
+
+import java.time.Duration;
+
+public interface Effect
+{
+    Duration getDuration();
+
+    float getAmplifier();
+
+    boolean isAmbient();
+
+    boolean forceDisplay();
+}

src/main/java/app/simplexdev/arcanumocculta/api/effect/PassiveEffect.java

@@ -0,0 +1,12 @@
+package app.simplexdev.arcanumocculta.api.effect;
+
+import app.simplexdev.arcanumocculta.api.player.Caster;
+
+public interface PassiveEffect extends Effect
+{
+    Caster getWandHolder();
+
+    void onTick();
+
+    PassiveEffects getPassiveEffect();
+}

src/main/java/app/simplexdev/arcanumocculta/api/effect/PassiveEffects.java

@@ -0,0 +1,30 @@
+package app.simplexdev.arcanumocculta.api.effect;
+
+import java.time.Duration;
+
+public enum PassiveEffects {
+    MANA_REGEN(Duration.ofSeconds(10L), 2.0),
+    LIFE_STEAL(Duration.ofSeconds(5L), 1.0),
+    ABSORPTION(Duration.ofSeconds(30L), 4.0),
+    SPELL_SHIELD(Duration.ofSeconds(5L), 5.0),
+    IMMUNITY(Duration.ofSeconds(5L), 100.0),
+    WITHER(Duration.ofSeconds(5L), 2.0),
+    DAMAGE_BOOST(Duration.ofSeconds(5L), 2.75),
+    IMPROVED_ACCURACY(Duration.ofSeconds(5L), 5.0);
+
+    private final Duration duration;
+    private final double amount;
+
+    PassiveEffects(final Duration duration, final double amount) {
+        this.duration = duration;
+        this.amount = amount;
+    }
+
+    Duration getDuration() {
+        return this.duration;
+    }
+
+    double getAmount() {
+        return this.amount;
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/api/effect/SpecialEffect.java

@@ -0,0 +1,8 @@
+package app.simplexdev.arcanumocculta.api.effect;
+
+import org.bukkit.entity.Player;
+
+public interface SpecialEffect extends Effect
+{
+    void applyEffect(final Player player);
+}

src/main/java/app/simplexdev/arcanumocculta/api/effect/SpellEffect.java

@@ -0,0 +1,9 @@
+package app.simplexdev.arcanumocculta.api.effect;
+
+import java.time.Duration;
+import org.bukkit.potion.PotionEffectType;
+
+public interface SpellEffect extends Effect
+{
+    PotionEffectType getEffectType();
+}

src/main/java/app/simplexdev/arcanumocculta/api/player/Caster.java

@@ -0,0 +1,90 @@
+package app.simplexdev.arcanumocculta.api.player;
+
+import app.simplexdev.arcanumocculta.api.book.SpellBook;
+
+import java.util.List;
+import java.util.UUID;
+
+public interface Caster {
+    /**
+     * @return The {@link UUID} of the caster.
+     */
+    UUID getCasterUUID();
+
+    /**
+     * @return The name of the caster.
+     */
+    String getDisplayName();
+
+    /**
+     * @return The amount of maximum mana the caster is allowed to have.
+     */
+    double getMaximumMana();
+
+    /**
+     * Sets the maximum amount of mana the caster is allowed to have.
+     *
+     * @param mana The amount of mana to set the maximum to.
+     */
+    void setMaximumMana(final double mana);
+
+    /**
+     * @return The amount of mana the caster currently has.
+     */
+    double getCurrentMana();
+
+    /**
+     * Adds mana to the caster.
+     *
+     * @param mana The amount of mana to add.
+     * @return The players updated {@link #getCurrentMana()}.
+     */
+    double addMana(final double mana);
+
+    /**
+     * Increases the amount of maximum mana this caster is allowed to have.
+     *
+     * @param mana The amount of mana to increase the maximum by.
+     * @return The players updated {@link #getMaximumMana()}.
+     */
+    double increaseMaximumMana(final double mana);
+
+    /**
+     * Removes mana from the caster.
+     *
+     * @param mana The amount of mana to remove.
+     * @return The players updated {@link #getCurrentMana()}.
+     */
+    double removeMana(final double mana);
+
+    /**
+     * Decreases the amount of maximum mana this caster is allowed to have.
+     *
+     * @param mana The amount of mana to decrease the maximum by.
+     * @return The players updated {@link #getMaximumMana()}.
+     */
+    double decreaseMaximumMana(final double mana);
+
+    /**
+     * Sets the amount of mana the caster currently has.
+     *
+     * @param mana The amount of mana to set the user's current mana to.
+     */
+    void setMana(final double mana);
+
+    /**
+     * @return The {@link SpellBook} of the caster.
+     */
+    SpellBook getSpellbook();
+
+    /**
+     * @return A list of {@link SpellResistance}s the caster has.
+     */
+    List<SpellResistance> getSpellResistances();
+
+    void addSpellResistance(SpellResistance resistance);
+
+    void removeSpellResistance(SpellResistance resistance);
+
+    boolean hasResistance(int spellOrdinal);
+}

src/main/java/app/simplexdev/arcanumocculta/api/player/SpellResistance.java

@@ -0,0 +1,9 @@
+package app.simplexdev.arcanumocculta.api.player;
+
+public interface SpellResistance {
+    String getSpellName();
+
+    double getResistance();
+
+    int getOrdinal();
+}

src/main/java/app/simplexdev/arcanumocculta/api/player/Wand.java

@@ -0,0 +1,18 @@
+package app.simplexdev.arcanumocculta.api.player;
+
+import app.simplexdev.arcanumocculta.api.effect.PassiveEffect;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.List;
+
+public interface Wand {
+    String getWandName();
+
+    String getWandDescription();
+
+    ItemStack getWandItem();
+
+    double getManaPenalty();
+
+    List<PassiveEffect> getPassiveEffects();
+}

src/main/java/app/simplexdev/arcanumocculta/api/spell/CompoundSpell.java

@@ -0,0 +1,8 @@
+package app.simplexdev.arcanumocculta.api.spell;
+
+import app.simplexdev.arcanumocculta.api.effect.CompoundEffect;
+
+public interface CompoundSpell extends Spell
+{
+    CompoundEffect getEffect();
+}

src/main/java/app/simplexdev/arcanumocculta/api/spell/SpecialSpell.java

@@ -0,0 +1,8 @@
+package app.simplexdev.arcanumocculta.api.spell;
+
+import app.simplexdev.arcanumocculta.api.effect.SpecialEffect;
+
+public interface SpecialSpell extends Spell
+{
+    SpecialEffect getSpecialEffect();
+}

src/main/java/app/simplexdev/arcanumocculta/api/spell/Spell.java

@@ -0,0 +1,23 @@
+package app.simplexdev.arcanumocculta.api.spell;
+
+import app.simplexdev.arcanumocculta.api.effect.SpellEffect;
+import org.bukkit.entity.Projectile;
+
+import java.time.Duration;
+
+public interface Spell
+{
+    String getSpellName();
+
+    String getSpellDescription();
+
+    double getManaCost();
+
+    Duration getCoolDown();
+
+    int getSpellLevel();
+
+    boolean isOnCoolDown();
+
+    SpellProjectile<? extends Projectile> getSpellProjectile();
+}

src/main/java/app/simplexdev/arcanumocculta/api/spell/SpellProjectile.java

@@ -0,0 +1,18 @@
+package app.simplexdev.arcanumocculta.api.spell;
+
+import org.bukkit.Location;
+import org.bukkit.Particle;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Projectile;
+
+import java.util.List;
+
+public interface SpellProjectile<T extends Projectile> {
+    T getProjectile();
+
+    List<Particle> getParticles();
+
+    void cast(final Location target);
+
+    void cast(final LivingEntity target);
+}

src/main/java/app/simplexdev/arcanumocculta/api/spell/StandardSpell.java

@@ -0,0 +1,8 @@
+package app.simplexdev.arcanumocculta.api.spell;
+
+import app.simplexdev.arcanumocculta.api.effect.SpellEffect;
+
+public interface StandardSpell extends Spell
+{
+    SpellEffect getSpellEffect();
+}

src/main/java/app/simplexdev/arcanumocculta/base/book/AbstractSpellBook.java

@@ -0,0 +1,99 @@
+package app.simplexdev.arcanumocculta.base.book;
+
+import app.simplexdev.arcanumocculta.api.book.SpellBook;
+import app.simplexdev.arcanumocculta.api.spell.Spell;
+import org.bukkit.ChatColor;
+import org.bukkit.Material;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public abstract class AbstractSpellBook implements SpellBook {
+    private final List<Spell> spellbook = new ArrayList<>();
+
+    private String name;
+    private String description;
+    private ItemStack itemStack;
+
+    protected AbstractSpellBook(final String name) {
+        this.name = name;
+        this.description = ChatColor.BLUE + "A simple spell book.";
+
+        final ItemStack stack = new ItemStack(Material.WRITTEN_BOOK, 1);
+        ItemMeta meta = stack.getItemMeta();
+
+        if (meta != null) {
+            meta.setDisplayName(name);
+            meta.setLore(List.of(description));
+            stack.setItemMeta(meta);
+        }
+
+        this.itemStack = stack;
+    }
+
+    @Override
+    public String getBookName() {
+        return name;
+    }
+
+    @Override
+    public void setBookName(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public String getBookDescription() {
+        return description;
+    }
+
+    @Override
+    public void setBookDescription(String description) {
+        this.description = description;
+    }
+
+    @Override
+    public ItemStack getBookItem() {
+        return itemStack;
+    }
+
+    @Override
+    public void setBookItem(final ItemStack stack) {
+        this.itemStack = stack;
+    }
+
+    @Override
+    public List<Spell> getSpells() {
+        return this.spellbook;
+    }
+
+    @Override
+    public void addSpell(Spell spell) {
+        this.spellbook.add(spell);
+    }
+
+    @Override
+    public void removeSpell(Spell spell) {
+        this.spellbook.remove(spell);
+    }
+
+    @Override
+    public Spell getSpell(String name) {
+        return getSpells()
+                .stream()
+                .filter(spell -> spell.getSpellName().equalsIgnoreCase(name))
+                .findFirst()
+                .orElse(null);
+    }
+
+    @Override
+    public Spell getSpell(int index) {
+        return getSpells().get(index);
+    }
+
+    @Override
+    public int getSpellCount() {
+        return getSpells().size();
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/base/book/AbstractSpellTome.java

@@ -0,0 +1,50 @@
+package app.simplexdev.arcanumocculta.base.book;
+
+import app.simplexdev.arcanumocculta.api.book.SpellTome;
+import app.simplexdev.arcanumocculta.api.spell.Spell;
+import org.bukkit.Material;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+
+import java.util.List;
+
+public abstract class AbstractSpellTome implements SpellTome {
+    private final Spell containedSpell;
+    private final String name;
+    private final String description;
+    private final ItemStack item;
+
+    protected AbstractSpellTome(final String name, final String description, final Spell containedSpell) {
+        this.containedSpell = containedSpell;
+        this.name = name;
+        this.description = description;
+        final ItemStack stack = new ItemStack(Material.BOOK, 1);
+        final ItemMeta meta = stack.getItemMeta();
+        if (meta != null) {
+            meta.setDisplayName(name);
+            meta.setLore(List.of(description));
+            stack.setItemMeta(meta);
+        }
+        this.item = stack;
+    }
+
+    @Override
+    public String getTomeName() {
+        return this.name;
+    }
+
+    @Override
+    public String getTomeDescription() {
+        return this.description;
+    }
+
+    @Override
+    public ItemStack getTomeItem() {
+        return this.item;
+    }
+
+    @Override
+    public Spell getContainedSpell() {
+        return this.containedSpell;
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/base/effect/AbstractCompoundEffect.java

@@ -0,0 +1,40 @@
+package app.simplexdev.arcanumocculta.base.effect;
+
+import app.simplexdev.arcanumocculta.api.effect.CompoundEffect;
+import org.bukkit.potion.PotionEffectType;
+
+import java.time.Duration;
+
+public abstract class AbstractCompoundEffect extends AbstractEffect implements CompoundEffect {
+    private final PotionEffectType[] effectTypes;
+
+    protected AbstractCompoundEffect(Duration duration, float amplifier, boolean ambient, boolean forceDisplay, PotionEffectType... effectTypes) {
+        super(duration, amplifier, ambient, forceDisplay);
+        this.effectTypes = effectTypes;
+    }
+
+    protected AbstractCompoundEffect(Duration duration, float amplifier, boolean forceDisplay, PotionEffectType... effectTypes) {
+        super(duration, amplifier, forceDisplay);
+        this.effectTypes = effectTypes;
+    }
+
+    protected AbstractCompoundEffect(Duration duration, float amplifier, PotionEffectType... effectTypes) {
+        super(duration, amplifier);
+        this.effectTypes = effectTypes;
+    }
+
+    protected AbstractCompoundEffect(Duration duration, PotionEffectType... effectTypes) {
+        super(duration);
+        this.effectTypes = effectTypes;
+    }
+
+    protected AbstractCompoundEffect(PotionEffectType... effectTypes) {
+        super();
+        this.effectTypes = effectTypes;
+    }
+
+    @Override
+    public PotionEffectType[] getEffectTypes() {
+        return new PotionEffectType[0];
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/base/effect/AbstractEffect.java

@@ -0,0 +1,55 @@
+package app.simplexdev.arcanumocculta.base.effect;
+
+import app.simplexdev.arcanumocculta.api.effect.Effect;
+
+import java.time.Duration;
+
+public abstract class AbstractEffect implements Effect {
+    private final Duration duration;
+    private final float amplifier;
+    private final boolean ambient;
+    private final boolean forceDisplay;
+
+    protected AbstractEffect(Duration duration, float amplifier, boolean ambient, boolean forceDisplay) {
+        this.duration = duration;
+        this.amplifier = amplifier;
+        this.ambient = ambient;
+        this.forceDisplay = forceDisplay;
+    }
+
+    protected AbstractEffect(Duration duration, float amplifier, boolean forceDisplay) {
+        this(duration, amplifier, false, forceDisplay);
+    }
+
+    protected AbstractEffect(Duration duration, float amplifier) {
+        this(duration, amplifier, false, false);
+    }
+
+    protected AbstractEffect(Duration duration) {
+        this(duration, 1, false, false);
+    }
+
+    protected AbstractEffect() {
+        this(Duration.ofSeconds(5L), 1, false, false);
+    }
+
+    @Override
+    public Duration getDuration() {
+        return duration;
+    }
+
+    @Override
+    public float getAmplifier() {
+        return amplifier;
+    }
+
+    @Override
+    public boolean isAmbient() {
+        return ambient;
+    }
+
+    @Override
+    public boolean forceDisplay() {
+        return forceDisplay;
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/base/effect/AbstractPassiveEffect.java

@@ -0,0 +1,53 @@
+package app.simplexdev.arcanumocculta.base.effect;
+
+import app.simplexdev.arcanumocculta.api.effect.PassiveEffect;
+import app.simplexdev.arcanumocculta.api.effect.PassiveEffects;
+import app.simplexdev.arcanumocculta.api.player.Caster;
+
+import java.time.Duration;
+
+public abstract class AbstractPassiveEffect extends AbstractEffect implements PassiveEffect {
+
+    private final Caster wandHolder;
+    private final PassiveEffects passiveEffect;
+
+    public AbstractPassiveEffect(Duration duration, float amplifier, boolean ambient, boolean forceDisplay, Caster wandHolder, PassiveEffects passiveEffect) {
+        super(duration, amplifier, ambient, forceDisplay);
+        this.wandHolder = wandHolder;
+        this.passiveEffect = passiveEffect;
+    }
+
+    public AbstractPassiveEffect(Duration duration, float amplifier, boolean forceDisplay, Caster wandHolder, PassiveEffects passiveEffect) {
+        super(duration, amplifier, forceDisplay);
+        this.wandHolder = wandHolder;
+        this.passiveEffect = passiveEffect;
+    }
+
+    public AbstractPassiveEffect(Duration duration, float amplifier, Caster wandHolder, PassiveEffects passiveEffect) {
+        super(duration, amplifier);
+        this.wandHolder = wandHolder;
+        this.passiveEffect = passiveEffect;
+    }
+
+    public AbstractPassiveEffect(Duration duration, Caster wandHolder, PassiveEffects passiveEffect) {
+        super(duration);
+        this.wandHolder = wandHolder;
+        this.passiveEffect = passiveEffect;
+    }
+
+    public AbstractPassiveEffect(Caster wandHolder, PassiveEffects passiveEffect) {
+        super();
+        this.wandHolder = wandHolder;
+        this.passiveEffect = passiveEffect;
+    }
+
+    @Override
+    public Caster getWandHolder() {
+        return null;
+    }
+
+    @Override
+    public PassiveEffects getPassiveEffect() {
+        return null;
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/base/effect/AbstractSpellEffect.java

@@ -0,0 +1,40 @@
+package app.simplexdev.arcanumocculta.base.effect;
+
+import app.simplexdev.arcanumocculta.api.effect.SpellEffect;
+import org.bukkit.potion.PotionEffectType;
+
+import java.time.Duration;
+
+public abstract class AbstractSpellEffect extends AbstractEffect implements SpellEffect {
+    private final PotionEffectType effectType;
+
+    protected AbstractSpellEffect(Duration duration, float amplifier, boolean ambient, boolean forceDisplay, PotionEffectType effectType) {
+        super(duration, amplifier, ambient, forceDisplay);
+        this.effectType = effectType;
+    }
+
+    protected AbstractSpellEffect(Duration duration, float amplifier, boolean forceDisplay, PotionEffectType effectType) {
+        super(duration, amplifier, forceDisplay);
+        this.effectType = effectType;
+    }
+
+    protected AbstractSpellEffect(Duration duration, float amplifier, PotionEffectType effectType) {
+        super(duration, amplifier);
+        this.effectType = effectType;
+    }
+
+    protected AbstractSpellEffect(Duration duration, PotionEffectType effectType) {
+        super(duration);
+        this.effectType = effectType;
+    }
+
+    protected AbstractSpellEffect(PotionEffectType effectType) {
+        super();
+        this.effectType = effectType;
+    }
+
+    @Override
+    public PotionEffectType getEffectType() {
+        return effectType;
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/base/player/AbstractCaster.java

@@ -0,0 +1,124 @@
+package app.simplexdev.arcanumocculta.base.player;
+
+import app.simplexdev.arcanumocculta.api.book.SpellBook;
+import app.simplexdev.arcanumocculta.api.player.Caster;
+import app.simplexdev.arcanumocculta.api.player.SpellResistance;
+import org.bukkit.entity.Player;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public abstract class AbstractCaster implements Caster {
+    private final String name;
+    private final UUID uuid;
+    private final SpellBook spellBook;
+    private final List<SpellResistance> spellResistances = new ArrayList<>();
+
+    private double maximumMana;
+    private double currentMana;
+
+    protected AbstractCaster(final Player player, SpellBook spellBook) {
+        this.name = player.getName();
+        this.uuid = player.getUniqueId();
+        this.spellBook = spellBook;
+
+        this.maximumMana = 20;
+        this.currentMana = maximumMana;
+    }
+
+    @Override
+    public UUID getCasterUUID() {
+        return uuid;
+    }
+
+    @Override
+    public String getDisplayName() {
+        return name;
+    }
+
+    @Override
+    public double getMaximumMana() {
+        return maximumMana;
+    }
+
+    @Override
+    public void setMaximumMana(double mana) {
+        this.maximumMana = mana;
+    }
+
+    @Override
+    public double getCurrentMana() {
+        return currentMana;
+    }
+
+    @Override
+    public double addMana(double mana) {
+        this.currentMana += mana;
+        return getCurrentMana();
+    }
+
+    @Override
+    public double increaseMaximumMana(double mana) {
+        this.maximumMana += mana;
+        return getMaximumMana();
+    }
+
+    @Override
+    public double removeMana(double mana) {
+        final double newMana = currentMana - mana;
+        if (newMana < 0) {
+            currentMana = 0;
+        } else {
+            currentMana = newMana;
+        }
+        return getCurrentMana();
+    }
+
+    @Override
+    public double decreaseMaximumMana(double mana) {
+        final double newMana = maximumMana - mana;
+        if (newMana < 0) {
+            maximumMana = 0;
+        } else {
+            maximumMana = newMana;
+        }
+        return getMaximumMana();
+    }
+
+    @Override
+    public void setMana(double mana) {
+        if (mana > getMaximumMana()) {
+            currentMana = getMaximumMana();
+        } else if (mana < 0) {
+            currentMana = 0;
+        } else {
+            currentMana = mana;
+        }
+    }
+
+    @Override
+    public SpellBook getSpellbook() {
+        return spellBook;
+    }
+
+    @Override
+    public List<SpellResistance> getSpellResistances() {
+        return spellResistances;
+    }
+
+    @Override
+    public void addSpellResistance(SpellResistance resistance) {
+        this.spellResistances.add(resistance);
+    }
+
+    @Override
+    public void removeSpellResistance(SpellResistance resistance) {
+        this.spellResistances.remove(resistance);
+    }
+
+    @Override
+    public boolean hasResistance(int ordinal) {
+        return getSpellResistances().stream().anyMatch(resistance -> resistance.getOrdinal() == ordinal);
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/base/player/AbstractWand.java

@@ -0,0 +1,48 @@
+package app.simplexdev.arcanumocculta.base.player;
+
+import app.simplexdev.arcanumocculta.api.effect.PassiveEffect;
+import app.simplexdev.arcanumocculta.api.player.Wand;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public abstract class AbstractWand implements Wand {
+    private final List<PassiveEffect> passiveEffects = new ArrayList<>();
+    private String name;
+    private String description;
+    private ItemStack item;
+    private double manaPenalty;
+
+    protected AbstractWand(String name, String description, ItemStack item, double manaPenalty) {
+        this.name = name;
+        this.description = description;
+        this.item = item;
+        this.manaPenalty = manaPenalty;
+    }
+
+    @Override
+    public String getWandName() {
+        return name;
+    }
+
+    @Override
+    public String getWandDescription() {
+        return description;
+    }
+
+    @Override
+    public ItemStack getWandItem() {
+        return item;
+    }
+
+    @Override
+    public double getManaPenalty() {
+        return manaPenalty;
+    }
+
+    @Override
+    public List<PassiveEffect> getPassiveEffects() {
+        return passiveEffects;
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/base/player/SimpleSpellResistance.java

@@ -0,0 +1,30 @@
+package app.simplexdev.arcanumocculta.base.player;
+
+import app.simplexdev.arcanumocculta.api.player.SpellResistance;
+
+public class SimpleSpellResistance implements SpellResistance {
+    private final String name;
+    private final double resistance;
+    private final int ordinal;
+
+    public SimpleSpellResistance(String spellName, double resistance, int ordinal) {
+        this.name = spellName;
+        this.resistance = resistance;
+        this.ordinal = ordinal;
+    }
+
+    @Override
+    public String getSpellName() {
+        return name;
+    }
+
+    @Override
+    public double getResistance() {
+        return resistance;
+    }
+
+    @Override
+    public int getOrdinal() {
+        return ordinal;
+    }
+}

src/main/java/app/simplexdev/arcanumocculta/base/spell/AbstractSpell.java

@@ -0,0 +1,44 @@
+package app.simplexdev.arcanumocculta.base.spell;
+
+import app.simplexdev.arcanumocculta.api.spell.Spell;
+import app.simplexdev.arcanumocculta.api.spell.SpellProjectile;
+import org.bukkit.entity.Projectile;
+
+import java.time.Duration;
+
+public class AbstractSpell implements Spell {
+    @Override
+    public String getSpellName() {
+        return null;
+    }
+
+    @Override
+    public String getSpellDescription() {
+        return null;
+    }
+
+    @Override
+    public double getManaCost() {
+        return 0;
+    }
+
+    @Override
+    public Duration getCoolDown() {
+        return null;
+    }
+
+    @Override
+    public int getSpellLevel() {
+        return 0;
+    }
+
+    @Override
+    public boolean isOnCoolDown() {
+        return false;
+    }
+
+    @Override
+    public SpellProjectile<? extends Projectile> getSpellProjectile() {
+        return null;
+    }
+}

src/main/resources/plugin.yml

@@ -0,0 +1,5 @@
+name: ArcanumOcculta
+version: '${version}'
+main: app.simplexdev.arcanumocculta.ArcanumOcculta
+api-version: '1.20'
+load: STARTUP