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Otto Helen-Goldring
2026-01-16 21:02:46 +00:00
commit 5a868d2396
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.gitattributes vendored Normal file
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#
# https://help.github.com/articles/dealing-with-line-endings/
#
# Linux start script should use lf
/gradlew text eol=lf
# These are Windows script files and should use crlf
*.bat text eol=crlf

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# Automatically build the project and run any configured tests for every push
# and submitted pull request. This can help catch issues that only occur on
# certain platforms or Java versions, and provides a first line of defence
# against bad commits.
name: build
on: [pull_request, push]
jobs:
build:
runs-on: ubuntu-24.04
steps:
- name: checkout repository
uses: actions/checkout@v4
- name: validate gradle wrapper
uses: gradle/actions/wrapper-validation@v4
- name: setup jdk
uses: actions/setup-java@v4
with:
java-version: '21'
distribution: 'microsoft'
- name: make gradle wrapper executable
run: chmod +x ./gradlew
- name: build
run: ./gradlew build
- name: capture build artifacts
uses: actions/upload-artifact@v4
with:
name: Artifacts
path: build/libs/

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# gradle
.gradle/
build/
out/
classes/
# eclipse
*.launch
# idea
.idea/
*.iml
*.ipr
*.iws
# vscode
.settings/
.vscode/
bin/
.classpath
.project
# macos
*.DS_Store
# fabric
run/
# java
hs_err_*.log
replay_*.log
*.hprof
*.jfr

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LICENSE Normal file
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Creative Commons Legal Code
CC0 1.0 Universal
CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
HEREUNDER.
Statement of Purpose
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works, reuse and redistribute as freely as possible in any form whatsoever
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These owners may contribute to the Commons to promote the ideal of a free
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For these and/or other purposes and motivations, and without any
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is an owner of Copyright and Related Rights in the Work, voluntarily
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vii. other similar, equivalent or corresponding rights throughout the
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2. Waiver. To the greatest extent permitted by, but not in contravention
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of the License, and in such case Affirmer hereby affirms that he or she
will not (i) exercise any of his or her remaining Copyright and Related
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action with respect to the Work, in either case contrary to Affirmer's
express Statement of Purpose.
4. Limitations and Disclaimers.
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c. Affirmer disclaims responsibility for clearing rights of other persons
that may apply to the Work or any use thereof, including without
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Further, Affirmer disclaims responsibility for obtaining any necessary
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d. Affirmer understands and acknowledges that Creative Commons is not a
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plugins {
id 'net.fabricmc.fabric-loom-remap' version "${loom_version}"
id 'maven-publish'
}
version = project.mod_version
group = project.maven_group
base {
archivesName = project.archives_base_name
}
repositories {
// Add repositories to retrieve artifacts from in here.
// You should only use this when depending on other mods because
// Loom adds the essential maven repositories to download Minecraft and libraries from automatically.
// See https://docs.gradle.org/current/userguide/declaring_repositories.html
// for more information about repositories.
}
loom {
splitEnvironmentSourceSets()
mods {
"ultcraft" {
sourceSet sourceSets.main
sourceSet sourceSets.client
}
}
}
dependencies {
// To change the versions see the gradle.properties file
minecraft "com.mojang:minecraft:${project.minecraft_version}"
mappings loom.officialMojangMappings()
modImplementation "net.fabricmc:fabric-loader:${project.loader_version}"
// Fabric API. This is technically optional, but you probably want it anyway.
modImplementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_api_version}"
}
processResources {
inputs.property "version", project.version
filesMatching("fabric.mod.json") {
expand "version": inputs.properties.version
}
}
tasks.withType(JavaCompile).configureEach {
it.options.release = 21
}
java {
// Loom will automatically attach sourcesJar to a RemapSourcesJar task and to the "build" task
// if it is present.
// If you remove this line, sources will not be generated.
withSourcesJar()
sourceCompatibility = JavaVersion.VERSION_21
targetCompatibility = JavaVersion.VERSION_21
}
jar {
inputs.property "archivesName", project.base.archivesName
from("LICENSE") {
rename { "${it}_${inputs.properties.archivesName}"}
}
}
// configure the maven publication
publishing {
publications {
create("mavenJava", MavenPublication) {
artifactId = project.archives_base_name
from components.java
}
}
// See https://docs.gradle.org/current/userguide/publishing_maven.html for information on how to set up publishing.
repositories {
// Add repositories to publish to here.
// Notice: This block does NOT have the same function as the block in the top level.
// The repositories here will be used for publishing your artifact, not for
// retrieving dependencies.
}
}

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# Done to increase the memory available to gradle.
org.gradle.jvmargs=-Xmx1G
org.gradle.parallel=true
# IntelliJ IDEA is not yet fully compatible with configuration cache, see: https://github.com/FabricMC/fabric-loom/issues/1349
org.gradle.configuration-cache=false
# Fabric Properties
# check these on https://fabricmc.net/develop
minecraft_version=1.21.11
loader_version=0.18.4
loom_version=1.14-SNAPSHOT
# Mod Properties
mod_version=1.0.0
maven_group=com.ottohg.ultcraft
archives_base_name=ultcraft
# Dependencies
fabric_api_version=0.141.1+1.21.11

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distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.1-bin.zip
networkTimeout=10000
validateDistributionUrl=true
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

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#!/bin/sh
#
# Copyright © 2015 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.
#
# SPDX-License-Identifier: Apache-2.0
#
##############################################################################
#
# 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/platforms/jvm/plugins-application/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##*/}
# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || 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 "$( uname )" in #(
CYGWIN* ) cygwin=true ;; #(
Darwin* ) darwin=true ;; #(
MSYS* | MINGW* ) msys=true ;; #(
NONSTOP* ) nonstop=true ;;
esac
# Determine the Java command to use to start the JVM.
if [ -n "$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: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD=java
if ! command -v java >/dev/null 2>&1
then
die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
fi
# Increase the maximum file descriptors if we can.
if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
case $MAX_FD in #(
max*)
# In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
# shellcheck disable=SC2039,SC3045
MAX_FD=$( ulimit -H -n ) ||
warn "Could not query maximum file descriptor limit"
esac
case $MAX_FD in #(
'' | soft) :;; #(
*)
# In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
# shellcheck disable=SC2039,SC3045
ulimit -n "$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 "$APP_HOME" )
JAVACMD=$( 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 optsEnvironmentVar are not allowed to contain shell fragments,
# and any embedded shellness will be escaped.
# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
# treated as '${Hostname}' itself on the command line.
set -- \
"-Dorg.gradle.appname=$APP_BASE_NAME" \
-jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
"$@"
# Stop when "xargs" is not available.
if ! command -v xargs >/dev/null 2>&1
then
die "xargs is not available"
fi
# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
# readarray ARGS < <( xargs -n1 <<<"$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 "$JAVACMD" "$@"

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@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
@rem SPDX-License-Identifier: Apache-2.0
@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. 1>&2
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
echo. 1>&2
echo Please set the JAVA_HOME variable in your environment to match the 1>&2
echo location of your Java installation. 1>&2
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto execute
echo. 1>&2
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
echo. 1>&2
echo Please set the JAVA_HOME variable in your environment to match the 1>&2
echo location of your Java installation. 1>&2
goto fail
:execute
@rem Setup the command line
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
: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

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settings.gradle Normal file
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pluginManagement {
repositories {
maven {
name = 'Fabric'
url = 'https://maven.fabricmc.net/'
}
mavenCentral()
gradlePluginPortal()
}
}

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src/client/java/com/ottohg/ultcraft/UltcraftClient.java Normal file
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package com.ottohg.ultcraft;
import com.ottohg.ultcraft.client.ClientUltimateData;
import com.ottohg.ultcraft.client.UltimateHudRenderer;
import com.ottohg.ultcraft.client.UltimateKeybinding;
import com.ottohg.ultcraft.network.UltimateActivatePacket;
import com.ottohg.ultcraft.network.UltimateSyncPacket;
import net.fabricmc.api.ClientModInitializer;
import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientTickEvents;
import net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking;
public class UltcraftClient implements ClientModInitializer {
@Override
public void onInitializeClient() {
Ultcraft.LOGGER.info("Initializing Ultcraft Client...");
// Register keybindings
UltimateKeybinding.register();
// Register HUD renderer
UltimateHudRenderer.register();
// Register client packet receiver
ClientPlayNetworking.registerGlobalReceiver(UltimateSyncPacket.TYPE, (packet, context) -> {
context.client().execute(() -> {
if (context.player() != null) {
ClientUltimateData.setCharge(packet.charge());
}
});
});
// Handle keybinding presses
ClientTickEvents.END_CLIENT_TICK.register(client -> {
while (UltimateKeybinding.activateUltimateKey.consumeClick()) {
if (ClientUltimateData.isReady()) {
// Send activation packet to server
ClientPlayNetworking.send(new UltimateActivatePacket());
Ultcraft.LOGGER.info("Ultimate activation requested!");
}
}
});
Ultcraft.LOGGER.info("Ultcraft Client initialized successfully!");
}
}

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src/client/java/com/ottohg/ultcraft/client/ClientUltimateData.java Normal file
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package com.ottohg.ultcraft.client;
/**
* Client-side storage for the local player's ultimate charge.
* This is synced from the server.
*/
public class ClientUltimateData {
private static float targetCharge = 0.0f;
private static float displayedCharge = 0.0f;
private static long lastAnimationTime = 0;
private static boolean isAnimatingReset = false;
private static final float RESET_DURATION = 500.0f; // 0.5 seconds
public static float getCharge() {
return targetCharge;
}
public static float getDisplayCharge() {
if (isAnimatingReset) {
long currentTime = System.currentTimeMillis();
float timeDelta = currentTime - lastAnimationTime;
float progress = timeDelta / RESET_DURATION;
if (progress >= 1.0f) {
displayedCharge = targetCharge;
isAnimatingReset = false;
} else {
// Lerp from 100 to 0
displayedCharge = 100.0f * (1.0f - progress);
}
} else {
displayedCharge = targetCharge;
}
return displayedCharge;
}
public static void setCharge(float charge) {
float newCharge = Math.min(charge, 100.0f);
// Check if we should trigger reset animation (high charge -> low charge)
// Relaxed condition to catch cases where passive charge might have ticked once
if (targetCharge > 90.0f && newCharge < 10.0f) {
isAnimatingReset = true;
lastAnimationTime = System.currentTimeMillis();
}
targetCharge = newCharge;
}
public static boolean isReady() {
return targetCharge >= 100.0f;
}
}

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src/client/java/com/ottohg/ultcraft/client/UltimateHudRenderer.java Normal file
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package com.ottohg.ultcraft.client;
import net.fabricmc.fabric.api.client.rendering.v1.HudRenderCallback;
import net.minecraft.client.DeltaTracker;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.GuiGraphics;
/**
* Renders the ultimate charge as a circular progress bar on the HUD.
* Similar to Overwatch's ultimate indicator.
*/
public class UltimateHudRenderer implements HudRenderCallback {
private static final int CIRCLE_RADIUS = 30;
private static final int CIRCLE_THICKNESS = 4;
private static final int HUD_X_OFFSET = 50;
private static final int HUD_Y_OFFSET = 50;
// Colors
private static final int COLOR_BACKGROUND = 0x80000000; // Semi-transparent black
private static final int COLOR_PROGRESS = 0xFFFFD700; // Gold
private static final int COLOR_READY = 0xFF00FF00; // Bright green
@Override
public void onHudRender(GuiGraphics guiGraphics, DeltaTracker deltaTracker) {
Minecraft mc = Minecraft.getInstance();
// Don't render in F3 debug screen
if (mc.getDebugOverlay().showDebugScreen()) {
return;
}
// Get charge percentage
float charge = ClientUltimateData.getDisplayCharge();
boolean isReady = ClientUltimateData.isReady();
// Calculate position (bottom left of screen)
int screenWidth = mc.getWindow().getGuiScaledWidth();
int screenHeight = mc.getWindow().getGuiScaledHeight();
int centerX = HUD_X_OFFSET;
int centerY = screenHeight - HUD_Y_OFFSET;
// Draw background circle
drawCircle(guiGraphics, centerX, centerY, CIRCLE_RADIUS, COLOR_BACKGROUND, true);
// Draw progress arc
int progressColor = isReady ? COLOR_READY : COLOR_PROGRESS;
drawArc(guiGraphics, centerX, centerY, CIRCLE_RADIUS, CIRCLE_THICKNESS,
charge / 100.0f, progressColor);
// Draw percentage text
String text = String.format("%d%%", (int) charge);
int textWidth = mc.font.width(text);
guiGraphics.drawString(mc.font, text,
centerX - textWidth / 2,
centerY - mc.font.lineHeight / 2,
progressColor, false);
// Draw "READY!" text if ultimate is charged
if (isReady) {
String readyText = "READY!";
int readyWidth = mc.font.width(readyText);
guiGraphics.drawString(mc.font, readyText,
centerX - readyWidth / 2,
centerY - CIRCLE_RADIUS - mc.font.lineHeight - 5,
COLOR_READY, true);
}
}
/**
* Draws a filled or outlined circle.
*/
private void drawCircle(GuiGraphics guiGraphics, int centerX, int centerY, int radius,
int color, boolean filled) {
float segments = 36;
float angleStep = (float) (2 * Math.PI / segments);
for (int i = 0; i < segments; i++) {
float angle1 = i * angleStep;
float angle2 = (i + 1) * angleStep;
int x1 = centerX + (int) (Math.cos(angle1) * radius);
int y1 = centerY + (int) (Math.sin(angle1) * radius);
int x2 = centerX + (int) (Math.cos(angle2) * radius);
int y2 = centerY + (int) (Math.sin(angle2) * radius);
if (filled) {
// Draw triangle from center to edge
guiGraphics.fill(centerX, centerY, x1, y1, color);
guiGraphics.fill(x1, y1, x2, y2, color);
} else {
// Draw line segment
drawLine(guiGraphics, x1, y1, x2, y2, color);
}
}
}
/**
* Draws a circular arc representing progress.
*/
private void drawArc(GuiGraphics guiGraphics, int centerX, int centerY, int radius,
int thickness, float progress, int color) {
float segments = 72;
float angleStep = (float) (2 * Math.PI / segments);
float startAngle = -(float) Math.PI / 2; // Start at top
int numSegments = (int) (segments * progress);
for (int i = 0; i < numSegments; i++) {
float angle1 = startAngle + i * angleStep;
float angle2 = startAngle + (i + 1) * angleStep;
// Outer edge
int x1Out = centerX + (int) (Math.cos(angle1) * radius);
int y1Out = centerY + (int) (Math.sin(angle1) * radius);
int x2Out = centerX + (int) (Math.cos(angle2) * radius);
int y2Out = centerY + (int) (Math.sin(angle2) * radius);
// Inner edge
int innerRadius = radius - thickness;
int x1In = centerX + (int) (Math.cos(angle1) * innerRadius);
int y1In = centerY + (int) (Math.sin(angle1) * innerRadius);
int x2In = centerX + (int) (Math.cos(angle2) * innerRadius);
int y2In = centerY + (int) (Math.sin(angle2) * innerRadius);
// Draw quad (two triangles)
drawQuad(guiGraphics, x1Out, y1Out, x2Out, y2Out, x2In, y2In, x1In, y1In, color);
}
}
/**
* Draws a line between two points.
*/
private void drawLine(GuiGraphics guiGraphics, int x1, int y1, int x2, int y2, int color) {
guiGraphics.fill(x1, y1, x2, y2, color);
}
/**
* Draws a quadrilateral using two triangles.
*/
private void drawQuad(GuiGraphics guiGraphics, int x1, int y1, int x2, int y2,
int x3, int y3, int x4, int y4, int color) {
// Triangle 1
fillTriangle(guiGraphics, x1, y1, x2, y2, x3, y3, color);
// Triangle 2
fillTriangle(guiGraphics, x1, y1, x3, y3, x4, y4, color);
}
/**
* Fills a triangle using scanline algorithm.
*/
private void fillTriangle(GuiGraphics guiGraphics, int x1, int y1, int x2, int y2,
int x3, int y3, int color) {
// Simple approximation: fill with small rectangles
int minX = Math.min(x1, Math.min(x2, x3));
int maxX = Math.max(x1, Math.max(x2, x3));
int minY = Math.min(y1, Math.min(y2, y3));
int maxY = Math.max(y1, Math.max(y2, y3));
for (int y = minY; y <= maxY; y++) {
for (int x = minX; x <= maxX; x++) {
if (isPointInTriangle(x, y, x1, y1, x2, y2, x3, y3)) {
guiGraphics.fill(x, y, x + 1, y + 1, color);
}
}
}
}
/**
* Checks if a point is inside a triangle using barycentric coordinates.
*/
private boolean isPointInTriangle(int px, int py, int x1, int y1, int x2, int y2,
int x3, int y3) {
float denominator = ((y2 - y3) * (x1 - x3) + (x3 - x2) * (y1 - y3));
if (Math.abs(denominator) < 0.001f) return false;
float a = ((y2 - y3) * (px - x3) + (x3 - x2) * (py - y3)) / denominator;
float b = ((y3 - y1) * (px - x3) + (x1 - x3) * (py - y3)) / denominator;
float c = 1 - a - b;
return a >= 0 && a <= 1 && b >= 0 && b <= 1 && c >= 0 && c <= 1;
}
public static void register() {
HudRenderCallback.EVENT.register(new UltimateHudRenderer());
}
}

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src/client/java/com/ottohg/ultcraft/client/UltimateKeybinding.java Normal file
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package com.ottohg.ultcraft.client;
import com.mojang.blaze3d.platform.InputConstants;
import net.fabricmc.fabric.api.client.keybinding.v1.KeyBindingHelper;
import net.minecraft.client.KeyMapping;
import net.minecraft.resources.Identifier;
import org.lwjgl.glfw.GLFW;
/**
* Manages the keybinding for activating ultimates.
*/
public class UltimateKeybinding {
public static KeyMapping activateUltimateKey;
public static final KeyMapping.Category ULTIMATE_CATEGORY = KeyMapping.Category.register(Identifier.fromNamespaceAndPath("ultcraft", "ultimate"));
public static void register() {
activateUltimateKey = KeyBindingHelper.registerKeyBinding(new KeyMapping(
"key.ultcraft.activate_ultimate", // Translation key
InputConstants.Type.KEYSYM,
GLFW.GLFW_KEY_Z, // Default to 'Z' key
ULTIMATE_CATEGORY // Category
));
}
}

15
src/client/java/com/ottohg/ultcraft/mixin/client/ExampleClientMixin.java Normal file
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package com.ottohg.ultcraft.mixin.client;
import net.minecraft.client.Minecraft;
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 ExampleClientMixin {
@Inject(at = @At("HEAD"), method = "run")
private void init(CallbackInfo info) {
// This code is injected into the start of Minecraft.run()V
}
}

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src/client/resources/ultcraft.client.mixins.json Normal file
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{
"required": true,
"package": "com.ottohg.ultcraft.mixin.client",
"compatibilityLevel": "JAVA_21",
"refmap": "ultcraft.refmap.json",
"client": [
"ExampleClientMixin"
],
"injectors": {
"defaultRequire": 1
}
}

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src/main/java/com/ottohg/ultcraft/Ultcraft.java Normal file
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package com.ottohg.ultcraft;
import com.ottohg.ultcraft.network.UltimateActivatePacket;
import net.fabricmc.api.ModInitializer;
import net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents;
import net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry;
import net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents;
import net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking;
import net.minecraft.server.level.ServerPlayer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Ultcraft implements ModInitializer {
public static final String MOD_ID = "ultcraft";
public static final Logger LOGGER = LoggerFactory.getLogger(MOD_ID);
@Override
public void onInitialize() {
LOGGER.info("Initializing Ultcraft - Ultimate System Loading...");
// Register network packets
PayloadTypeRegistry.playC2S().register(UltimateActivatePacket.TYPE, UltimateActivatePacket.CODEC);
PayloadTypeRegistry.playS2C().register(com.ottohg.ultcraft.network.UltimateSyncPacket.TYPE,
com.ottohg.ultcraft.network.UltimateSyncPacket.CODEC);
UltimateActivatePacket.register();
// Register server tick event for passive charging
ServerTickEvents.END_SERVER_TICK.register(server -> {
for (ServerPlayer player : server.getPlayerList().getPlayers()) {
// Tick passive charge
UltimateData.tickPassiveCharge(player.getUUID());
// Sync charge to client every second (20 ticks)
if (server.getTickCount() % 20 == 0) {
float charge = UltimateData.getCharge(player.getUUID());
ServerPlayNetworking.send(player,
new com.ottohg.ultcraft.network.UltimateSyncPacket(charge));
}
}
});
// Clean up data when player disconnects
ServerPlayConnectionEvents.DISCONNECT.register((handler, server) -> {
UltimateData.removePlayer(handler.getPlayer().getUUID());
});
LOGGER.info("Ultcraft initialized successfully!");
}
}

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src/main/java/com/ottohg/ultcraft/UltimateData.java Normal file
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package com.ottohg.ultcraft;
import com.ottohg.ultcraft.network.UltimateSyncPacket;
import net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking;
import net.minecraft.core.Holder;
import net.minecraft.core.registries.BuiltInRegistries;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.resources.Identifier;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.world.effect.MobEffect;
import net.minecraft.world.effect.MobEffectInstance;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
/**
* Manages ultimate charge data for all players.
* Handles passive charging, damage-based charging, and ultimate activation.
*/
public class UltimateData {
private static final Map<UUID, Float> ultimateCharges = new HashMap<>();
private static final Map<UUID, Long> lastTickTimes = new HashMap<>();
// Constants
private static final float PASSIVE_CHARGE_PER_MINUTE = 100.0f / 15.0f; // 100% over 15 minutes
private static final float DAMAGE_CHARGE_RATIO = 3.0f / 6.0f; // 3% per 6 damage points (3 hearts)
private static final float MAX_CHARGE = 100.0f;
public static float getCharge(UUID playerId) {
return ultimateCharges.getOrDefault(playerId, 0.0f);
}
public static void setCharge(UUID playerId, float charge) {
ultimateCharges.put(playerId, Math.min(charge, MAX_CHARGE));
}
public static void addCharge(UUID playerId, float amount) {
float current = getCharge(playerId);
setCharge(playerId, current + amount);
}
public static void addChargeFromDamage(ServerPlayer player, float damage) {
float chargeGain = damage * DAMAGE_CHARGE_RATIO;
addCharge(player.getUUID(), chargeGain);
Ultcraft.LOGGER.info("Player {} gained {}% ultimate charge from {} damage",
player.getUUID(), String.format("%.2f", chargeGain), damage);
// Sync to client immediately to reduce UI delay
ServerPlayNetworking.send(player, new UltimateSyncPacket(getCharge(player.getUUID())));
}
public static void tickPassiveCharge(UUID playerId) {
long currentTime = System.currentTimeMillis();
Long lastTime = lastTickTimes.get(playerId);
if (lastTime != null) {
long deltaMs = currentTime - lastTime;
float deltaMinutes = deltaMs / 60000.0f;
float chargeGain = PASSIVE_CHARGE_PER_MINUTE * deltaMinutes;
float currentCharge = getCharge(playerId);
if (currentCharge < MAX_CHARGE) {
addCharge(playerId, chargeGain);
}
}
lastTickTimes.put(playerId, currentTime);
}
public static boolean isUltimateReady(UUID playerId) {
return getCharge(playerId) >= MAX_CHARGE;
}
public static boolean activateUltimate(ServerPlayer player) {
if (!isUltimateReady(player.getUUID())) {
return false;
}
// Apply effects: Strength 2 and Regeneration 2 for 5 seconds
Holder<MobEffect> strength = BuiltInRegistries.MOB_EFFECT.wrapAsHolder(
BuiltInRegistries.MOB_EFFECT.getValue(Identifier.fromNamespaceAndPath("minecraft", "strength"))
);
Holder<MobEffect> regeneration = BuiltInRegistries.MOB_EFFECT.wrapAsHolder(
BuiltInRegistries.MOB_EFFECT.getValue(Identifier.fromNamespaceAndPath("minecraft", "regeneration"))
);
player.addEffect(new MobEffectInstance(strength, 200, 1));
player.addEffect(new MobEffectInstance(regeneration, 200, 1));
// Reset charge
setCharge(player.getUUID(), 0.0f);
Ultcraft.LOGGER.info("Player {} activated ultimate!", player.getName().getString());
return true;
}
public static void removePlayer(UUID playerId) {
ultimateCharges.remove(playerId);
lastTickTimes.remove(playerId);
}
public static void saveToNBT(UUID playerId, CompoundTag tag) {
tag.putFloat("UltimateCharge", getCharge(playerId));
}
public static void loadFromNBT(UUID playerId, CompoundTag tag) {
if (tag.contains("UltimateCharge")) {
setCharge(playerId, tag.getFloat("UltimateCharge").orElse(0.0f));
}
}
}

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src/main/java/com/ottohg/ultcraft/mixin/DamageTrackingMixin.java Normal file
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package com.ottohg.ultcraft.mixin;
import com.ottohg.ultcraft.UltimateData;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.entity.LivingEntity;
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.CallbackInfoReturnable;
/**
* Mixin to track damage dealt by players and charge their ultimate accordingly.
*/
@Mixin(LivingEntity.class)
public class DamageTrackingMixin {
@Inject(method = "hurtServer", at = @At("RETURN"))
private void onHurt(ServerLevel level, DamageSource source, float amount, CallbackInfoReturnable<Boolean> cir) {
// Only process if damage was actually dealt
if (!cir.getReturnValue()) {
return;
}
// Check if the damage source is a player
if (source.getEntity() instanceof ServerPlayer player) {
LivingEntity target = (LivingEntity) (Object) this;
// Only charge from damage to other entities (not self-damage)
if (target != player) {
// Add charge based on damage dealt
UltimateData.addChargeFromDamage(player, amount);
}
}
}
}

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src/main/java/com/ottohg/ultcraft/mixin/ExampleMixin.java Normal file
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package com.ottohg.ultcraft.mixin;
import net.minecraft.server.MinecraftServer;
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(MinecraftServer.class)
public class ExampleMixin {
@Inject(at = @At("HEAD"), method = "loadLevel")
private void init(CallbackInfo info) {
// This code is injected into the start of MinecraftServer.loadLevel()V
}
}

34
src/main/java/com/ottohg/ultcraft/network/UltimateActivatePacket.java Normal file
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package com.ottohg.ultcraft.network;
import com.ottohg.ultcraft.Ultcraft;
import net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking;
import net.minecraft.network.FriendlyByteBuf;
import net.minecraft.network.codec.StreamCodec;
import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
import net.minecraft.resources.Identifier;
/**
* Packet sent from client to server to activate ultimate.
*/
public record UltimateActivatePacket() implements CustomPacketPayload {
public static final CustomPacketPayload.Type<UltimateActivatePacket> TYPE =
new CustomPacketPayload.Type<>(Identifier.fromNamespaceAndPath(Ultcraft.MOD_ID, "activate_ultimate"));
public static final StreamCodec<FriendlyByteBuf, UltimateActivatePacket> CODEC = StreamCodec.of(
(buf, packet) -> {}, // Write (nothing to write)
(buf) -> new UltimateActivatePacket() // Read
);
@Override
public Type<? extends CustomPacketPayload> type() {
return TYPE;
}
public static void register() {
ServerPlayNetworking.registerGlobalReceiver(TYPE, (packet, context) -> {
context.server().execute(() -> {
com.ottohg.ultcraft.UltimateData.activateUltimate(context.player());
});
});
}
}

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src/main/java/com/ottohg/ultcraft/network/UltimateSyncPacket.java Normal file
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package com.ottohg.ultcraft.network;
import com.ottohg.ultcraft.Ultcraft;
import net.minecraft.network.FriendlyByteBuf;
import net.minecraft.network.codec.StreamCodec;
import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
import net.minecraft.resources.Identifier;
/**
* Packet sent from server to client to sync ultimate charge.
*/
public record UltimateSyncPacket(float charge) implements CustomPacketPayload {
public static final CustomPacketPayload.Type<UltimateSyncPacket> TYPE =
new CustomPacketPayload.Type<>(Identifier.fromNamespaceAndPath(Ultcraft.MOD_ID, "sync_ultimate"));
public static final StreamCodec<FriendlyByteBuf, UltimateSyncPacket> CODEC = StreamCodec.of(
(buf, packet) -> buf.writeFloat(packet.charge),
(buf) -> new UltimateSyncPacket(buf.readFloat())
);
@Override
public Type<? extends CustomPacketPayload> type() {
return TYPE;
}
}

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src/main/resources/assets/ultcraft/lang/en_us.json Normal file
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{
"key.ultcraft.activate_ultimate": "Activate Ultimate",
"category.ultcraft.ultimate": "Ultcraft"
}

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src/main/resources/fabric.mod.json Normal file
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{
"schemaVersion": 1,
"id": "ultcraft",
"version": "${version}",
"name": "Ultcraft",
"description": "This is an example description! Tell everyone what your mod is about!",
"authors": [
"Me!"
],
"contact": {
"homepage": "https://fabricmc.net/",
"sources": "https://github.com/FabricMC/fabric-example-mod"
},
"license": "CC0-1.0",
"icon": "assets/ultcraft/icon.png",
"environment": "*",
"entrypoints": {
"main": [
"com.ottohg.ultcraft.Ultcraft"
],
"client": [
"com.ottohg.ultcraft.UltcraftClient"
]
},
"mixins": [
"ultcraft.mixins.json",
{
"config": "ultcraft.client.mixins.json",
"environment": "client"
}
],
"depends": {
"fabricloader": ">=0.18.4",
"minecraft": "~1.21.11",
"java": ">=21",
"fabric-api": "*"
}
}

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src/main/resources/ultcraft.mixins.json Normal file
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{
"required": true,
"package": "com.ottohg.ultcraft.mixin",
"compatibilityLevel": "JAVA_21",
"refmap": "ultcraft.refmap.json",
"mixins": [
"ExampleMixin",
"DamageTrackingMixin"
],
"injectors": {
"defaultRequire": 1
},
"overwrites": {
"requireAnnotations": true
}
}