├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── local_maven ├── fabric-api-0.140.0+1.21.11.jar └── midnightlib-1.9.2+1.21.11-fabric.jar ├── src └── main │ ├── resources │ ├── assets │ │ └── cool_elytra │ │ │ ├── icon.png │ │ │ └── lang │ │ │ └── en_us.json │ ├── cool_elytra.mixins.json │ └── fabric.mod.json │ └── java │ └── edu │ └── jorbonism │ └── cool_elytra │ ├── mixin │ ├── CameraMixin.java │ ├── FireworkRocketEntityMixin.java │ ├── ClientPlayerEntityMixin.java │ └── GameRendererMixin.java │ ├── config │ └── CoolElytraConfig.java │ └── CoolElytraClient.java ├── .gitignore ├── README.md ├── gradle.properties ├── settings.gradle ├── gradlew.bat ├── gradlew └── LICENSE /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Jorbon/cool_elytra/HEAD/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /local_maven/fabric-api-0.140.0+1.21.11.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Jorbon/cool_elytra/HEAD/local_maven/fabric-api-0.140.0+1.21.11.jar -------------------------------------------------------------------------------- /src/main/resources/assets/cool_elytra/icon.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Jorbon/cool_elytra/HEAD/src/main/resources/assets/cool_elytra/icon.png -------------------------------------------------------------------------------- /local_maven/midnightlib-1.9.2+1.21.11-fabric.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Jorbon/cool_elytra/HEAD/local_maven/midnightlib-1.9.2+1.21.11-fabric.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.1-bin.zip 4 | networkTimeout=10000 5 | validateDistributionUrl=true 6 | zipStoreBase=GRADLE_USER_HOME 7 | zipStorePath=wrapper/dists 8 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # gradle 2 | 3 | .gradle/ 4 | build/ 5 | out/ 6 | classes/ 7 | 8 | # eclipse 9 | 10 | *.launch 11 | 12 | # idea 13 | 14 | .idea/ 15 | *.iml 16 | *.ipr 17 | *.iws 18 | 19 | # vscode 20 | 21 | .settings/ 22 | .vscode/ 23 | bin/ 24 | .classpath 25 | .project 26 | 27 | # macos 28 | 29 | *.DS_Store 30 | 31 | # fabric 32 | 33 | run/ 34 | .fabric 35 | -------------------------------------------------------------------------------- /src/main/resources/cool_elytra.mixins.json: -------------------------------------------------------------------------------- 1 | { 2 | "required": true, 3 | "package": "edu.jorbonism.cool_elytra.mixin", 4 | "compatibilityLevel": "JAVA_${java_version}", 5 | "client": [ 6 | "GameRendererMixin", 7 | "FireworkRocketEntityMixin", 8 | "ClientPlayerEntityMixin", 9 | "CameraMixin" 10 | ], 11 | "injectors": { 12 | "defaultRequire": 1 13 | } 14 | } 15 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | 2 | # Cool Elytra Roll 3 | 4 | This is a simple Minecraft mod that adds physics-based camera rotation while in flight. An optional mode adds a realistic control scheme that mimics an actual plane yoke to allow free rotation in all three axes. 5 | 6 | The project is organized using [fabric-ralli](), a compatibility testing utility created by me for easier update support. 7 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | org.gradle.jvmargs=-Xmx2G 2 | org.gradle.parallel=true 3 | org.gradle.configuration-cache=false 4 | 5 | # Mod Properties 6 | mod_version = 1.5.3 7 | maven_group = edu.jorbonism 8 | project_id = cool_elytra 9 | 10 | # Ralli driven values 11 | minecraft_compatible_range=[">=1.21.11"] 12 | enforce_range=true 13 | minecraft_version=1.21.11 14 | yarn_mappings=1.21.11+build.3 15 | java_version=21 16 | loom_version=1.14-SNAPSHOT 17 | loader_version=0.18.3 18 | 19 | # Dependencies 20 | fabric-api=0.140.0+1.21.11 21 | midnightlib=1.9.2+1.21.11-fabric 22 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | pluginManagement { 2 | repositories { 3 | mavenCentral() 4 | maven { 5 | name = 'Fabric' 6 | url = 'https://maven.fabricmc.net/' 7 | } 8 | gradlePluginPortal() 9 | } 10 | } 11 | 12 | dependencyResolutionManagement { 13 | repositories { 14 | mavenCentral() 15 | maven { 16 | name = 'Fabric' 17 | url = 'https://maven.fabricmc.net/' 18 | } 19 | maven { 20 | name = 'Mojang Libs' 21 | url = 'https://libraries.minecraft.net/' 22 | } 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /src/main/java/edu/jorbonism/cool_elytra/mixin/CameraMixin.java: -------------------------------------------------------------------------------- 1 | package edu.jorbonism.cool_elytra.mixin; 2 | 3 | import edu.jorbonism.cool_elytra.CoolElytraClient; 4 | import net.minecraft.client.render.Camera; 5 | import org.spongepowered.asm.mixin.Mixin; 6 | import org.spongepowered.asm.mixin.injection.At; 7 | import org.spongepowered.asm.mixin.injection.ModifyArg; 8 | 9 | @Mixin(Camera.class) 10 | public abstract class CameraMixin { 11 | 12 | @ModifyArg(method = "setRotation", at = @At(value = "INVOKE", target = 13 | "Lorg/joml/Quaternionf;rotationYXZ(FFF)Lorg/joml/Quaternionf;" 14 | ), index = 2) 15 | protected float setRotation(float angleY, float angleX, float angleZ) { 16 | float angle = (float)(CoolElytraClient.rollAngle * CoolElytraClient.TORAD); 17 | if (!CoolElytraClient.isFrontView) angle = -angle; 18 | 19 | return angleZ + angle; 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /src/main/resources/fabric.mod.json: -------------------------------------------------------------------------------- 1 | { 2 | "schemaVersion": 1, 3 | "id": "cool_elytra", 4 | "version": "${version}", 5 | 6 | "name": "Cool Elytra", 7 | "description": "Rolls the camera while turning in flight", 8 | "authors": [ 9 | "Jorbonism", 10 | "Motschen" 11 | ], 12 | "contact": { 13 | "homepage": "https://www.curseforge.com/minecraft/mc-mods/cool-elytra-roll", 14 | "sources": "https://github.com/Jorbon/cool_elytra" 15 | }, 16 | 17 | "license": "GPL-3.0", 18 | "icon": "assets/cool_elytra/icon.png", 19 | 20 | "environment": "client", 21 | "entrypoints": { 22 | "client": [ 23 | "edu.jorbonism.cool_elytra.CoolElytraClient" 24 | ] 25 | }, 26 | "mixins": [ 27 | { 28 | "config": "cool_elytra.mixins.json", 29 | "environment": "client" 30 | } 31 | ], 32 | 33 | "depends": { 34 | "java": ">=${java_version}", 35 | "minecraft": ${minecraft_compatible_range}, 36 | "fabricloader": "*", 37 | "fabric-api": "*", 38 | "midnightlib": "*" 39 | } 40 | } 41 | -------------------------------------------------------------------------------- /src/main/java/edu/jorbonism/cool_elytra/config/CoolElytraConfig.java: -------------------------------------------------------------------------------- 1 | package edu.jorbonism.cool_elytra.config; 2 | 3 | import eu.midnightdust.lib.config.MidnightConfig; 4 | 5 | public class CoolElytraConfig extends MidnightConfig { 6 | @Entry public static Mode modMode = Mode.CLASSIC; 7 | public enum Mode { DISABLED, CLASSIC, REALISTIC } 8 | @Comment public static Comment classic; 9 | @Entry public static double wingPower = 1.25; 10 | @Entry(min = 0, max = 1) public static double rollSmoothing = 0.85; 11 | @Comment public static Comment realistic; 12 | @Entry public static boolean swap = false; 13 | @Entry public static double rollSensitivity = 1; 14 | @Entry public static double yawSensitivity = 1; 15 | @Entry public static double pitchSensitivity = 1; 16 | @Entry public static double keyRollSensitivity = 1; 17 | @Entry public static double keyYawSensitivity = 2; 18 | @Entry public static double keyRollMomentum = 1; 19 | @Entry public static double keyYawMomentum = 1; 20 | @Entry public static double keyRollSpeedCap = 40; 21 | @Entry public static double keyYawSpeedCap = 15; 22 | } 23 | -------------------------------------------------------------------------------- /src/main/java/edu/jorbonism/cool_elytra/mixin/FireworkRocketEntityMixin.java: -------------------------------------------------------------------------------- 1 | package edu.jorbonism.cool_elytra.mixin; 2 | 3 | import org.spongepowered.asm.mixin.Mixin; 4 | import org.spongepowered.asm.mixin.Shadow; 5 | import org.spongepowered.asm.mixin.injection.At; 6 | import org.spongepowered.asm.mixin.injection.Inject; 7 | 8 | import edu.jorbonism.cool_elytra.CoolElytraClient; 9 | import net.minecraft.entity.LivingEntity; 10 | import net.minecraft.entity.player.PlayerEntity; 11 | import net.minecraft.entity.projectile.FireworkRocketEntity; 12 | import org.spongepowered.asm.mixin.injection.callback.CallbackInfo; 13 | 14 | @Mixin(FireworkRocketEntity.class) 15 | public abstract class FireworkRocketEntityMixin { 16 | 17 | @Shadow private LivingEntity shooter; 18 | @Shadow private int life; 19 | @Shadow private int lifeTime; 20 | 21 | @Inject(method = "tick", at = @At("HEAD")) 22 | public void tick(CallbackInfo ci) { 23 | if (this.wasShotByEntity() && this.shooter != null && this.shooter instanceof PlayerEntity && this.shooter.isGliding()) { 24 | CoolElytraClient.isRocketing = this.life < this.lifeTime; 25 | } 26 | } 27 | 28 | @Shadow private boolean wasShotByEntity() { return false; } 29 | 30 | } 31 | -------------------------------------------------------------------------------- /src/main/resources/assets/cool_elytra/lang/en_us.json: -------------------------------------------------------------------------------- 1 | { 2 | "cool_elytra.midnightconfig.title":"Cool Elytra Config", 3 | 4 | "key.category.minecraft.cool_elytra":"Cool Elytra", 5 | "key.cool_elytra.classic":"Classic mode", 6 | "key.cool_elytra.realism":"Realistic mode", 7 | "key.cool_elytra.disable":"Disable", 8 | 9 | "cool_elytra.midnightconfig.modMode":"Elytra roll mode", 10 | "cool_elytra.midnightconfig.enum.Mode.CLASSIC":"Classic", 11 | "cool_elytra.midnightconfig.enum.Mode.REALISTIC":"Realistic", 12 | "cool_elytra.midnightconfig.enum.Mode.DISABLED":"Disabled", 13 | "cool_elytra.midnightconfig.classic":"§e§nClassic mode settings", 14 | "cool_elytra.midnightconfig.wingPower":"Turning force (Rolling sensitivity)", 15 | "cool_elytra.midnightconfig.rollSmoothing":"Camera rotation smoothing", 16 | "cool_elytra.midnightconfig.realistic":"§e§nRealistic mode settings", 17 | "cool_elytra.midnightconfig.swap":"Swap roll and yaw (shift to roll with mouse)", 18 | "cool_elytra.midnightconfig.rollSensitivity":"Roll sensitivity", 19 | "cool_elytra.midnightconfig.yawSensitivity":"Yaw sensitivity", 20 | "cool_elytra.midnightconfig.pitchSensitivity":"Pitch sensitivity", 21 | "cool_elytra.midnightconfig.keyRollSensitivity":"Key roll sensitivity", 22 | "cool_elytra.midnightconfig.keyYawSensitivity":"Key yaw sensitivity", 23 | "cool_elytra.midnightconfig.keyRollMomentum":"Key roll momentum", 24 | "cool_elytra.midnightconfig.keyYawMomentum":"Key yaw momentum", 25 | "cool_elytra.midnightconfig.keyRollSpeedCap":"Key roll speed cap", 26 | "cool_elytra.midnightconfig.keyYawSpeedCap":"Key yaw speed cap" 27 | } -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | 2 | @rem 3 | @rem Copyright 2015 the original author or authors. 4 | @rem 5 | @rem Licensed under the Apache License, Version 2.0 (the "License"); 6 | @rem you may not use this file except in compliance with the License. 7 | @rem You may obtain a copy of the License at 8 | @rem 9 | @rem https://www.apache.org/licenses/LICENSE-2.0 10 | @rem 11 | @rem Unless required by applicable law or agreed to in writing, software 12 | @rem distributed under the License is distributed on an "AS IS" BASIS, 13 | @rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 | @rem See the License for the specific language governing permissions and 15 | @rem limitations under the License. 16 | @rem 17 | @rem SPDX-License-Identifier: Apache-2.0 18 | @rem 19 | 20 | @if "%DEBUG%"=="" @echo off 21 | @rem ########################################################################## 22 | @rem 23 | @rem Gradle startup script for Windows 24 | @rem 25 | @rem ########################################################################## 26 | 27 | @rem Set local scope for the variables with windows NT shell 28 | if "%OS%"=="Windows_NT" setlocal 29 | 30 | set DIRNAME=%~dp0 31 | if "%DIRNAME%"=="" set DIRNAME=. 32 | @rem This is normally unused 33 | set APP_BASE_NAME=%~n0 34 | set APP_HOME=%DIRNAME% 35 | 36 | @rem Resolve any "." and ".." in APP_HOME to make it shorter. 37 | for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi 38 | 39 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 40 | set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" 41 | 42 | @rem Find java.exe 43 | if defined JAVA_HOME goto findJavaFromJavaHome 44 | 45 | set JAVA_EXE=java.exe 46 | %JAVA_EXE% -version >NUL 2>&1 47 | if %ERRORLEVEL% equ 0 goto execute 48 | 49 | echo. 1>&2 50 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2 51 | echo. 1>&2 52 | echo Please set the JAVA_HOME variable in your environment to match the 1>&2 53 | echo location of your Java installation. 1>&2 54 | 55 | goto fail 56 | 57 | :findJavaFromJavaHome 58 | set JAVA_HOME=%JAVA_HOME:"=% 59 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 60 | 61 | if exist "%JAVA_EXE%" goto execute 62 | 63 | echo. 1>&2 64 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2 65 | echo. 1>&2 66 | echo Please set the JAVA_HOME variable in your environment to match the 1>&2 67 | echo location of your Java installation. 1>&2 68 | 69 | goto fail 70 | 71 | :execute 72 | @rem Setup the command line 73 | 74 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 75 | 76 | 77 | @rem Execute Gradle 78 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* 79 | 80 | :end 81 | @rem End local scope for the variables with windows NT shell 82 | if %ERRORLEVEL% equ 0 goto mainEnd 83 | 84 | :fail 85 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 86 | rem the _cmd.exe /c_ return code! 87 | set EXIT_CODE=%ERRORLEVEL% 88 | if %EXIT_CODE% equ 0 set EXIT_CODE=1 89 | if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE% 90 | exit /b %EXIT_CODE% 91 | 92 | :mainEnd 93 | if "%OS%"=="Windows_NT" endlocal 94 | 95 | :omega 96 | -------------------------------------------------------------------------------- /src/main/java/edu/jorbonism/cool_elytra/CoolElytraClient.java: -------------------------------------------------------------------------------- 1 | package edu.jorbonism.cool_elytra; 2 | 3 | import org.lwjgl.glfw.GLFW; 4 | 5 | import edu.jorbonism.cool_elytra.config.CoolElytraConfig; 6 | import edu.jorbonism.cool_elytra.config.CoolElytraConfig.Mode; 7 | import net.fabricmc.api.ClientModInitializer; 8 | import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientTickEvents; 9 | import net.fabricmc.fabric.api.client.keybinding.v1.KeyBindingHelper; 10 | import net.minecraft.client.option.KeyBinding; 11 | import net.minecraft.client.util.InputUtil; 12 | import net.minecraft.util.Identifier; 13 | import net.minecraft.util.math.Vec3d; 14 | 15 | public class CoolElytraClient implements ClientModInitializer { 16 | 17 | @Override 18 | public void onInitializeClient() { 19 | CoolElytraConfig.init("cool_elytra", CoolElytraConfig.class); 20 | 21 | ClientTickEvents.END_CLIENT_TICK.register(client -> { 22 | while (keyRealism.wasPressed()) CoolElytraConfig.modMode = Mode.REALISTIC; 23 | while (keyClassic.wasPressed()) CoolElytraConfig.modMode = Mode.CLASSIC; 24 | while (keyDisable.wasPressed()) CoolElytraConfig.modMode = Mode.DISABLED; 25 | }); 26 | } 27 | 28 | public static long lastTime = System.nanoTime(); 29 | public static double rollAngle = 0; 30 | public static boolean isRocketing = false; 31 | public static Vec3d left; 32 | public static double rollVelocity = 0; 33 | public static double yawVelocity = 0; 34 | public static boolean isFrontView = false; 35 | public static double strafeInput = 0; 36 | public static boolean isKeyUpdate = false; 37 | public static double cursorDeltaZ = 0; 38 | public static final double TORAD = Math.PI / 180; 39 | public static final double TODEG = 1 / TORAD; 40 | 41 | private static final KeyBinding.Category COOL_ELYTRA_CATEGORY = KeyBinding.Category.create(Identifier.of("cool_elytra")); 42 | private static KeyBinding keyClassic = KeyBindingHelper.registerKeyBinding(new KeyBinding("key.cool_elytra.classic", InputUtil.Type.KEYSYM, GLFW.GLFW_KEY_UNKNOWN, COOL_ELYTRA_CATEGORY)); 43 | private static KeyBinding keyRealism = KeyBindingHelper.registerKeyBinding(new KeyBinding("key.cool_elytra.realism", InputUtil.Type.KEYSYM, GLFW.GLFW_KEY_UNKNOWN, COOL_ELYTRA_CATEGORY)); 44 | private static KeyBinding keyDisable = KeyBindingHelper.registerKeyBinding(new KeyBinding("key.cool_elytra.disable", InputUtil.Type.KEYSYM, GLFW.GLFW_KEY_UNKNOWN, COOL_ELYTRA_CATEGORY)); 45 | 46 | 47 | public static Vec3d getAssumedLeft(float yaw) { 48 | yaw *= TORAD; 49 | return new Vec3d(-Math.cos(yaw), 0, -Math.sin(yaw)); 50 | } 51 | 52 | public static Vec3d rotateAxisAngle(Vec3d v, Vec3d axis, double angle) { 53 | double c = Math.cos(angle); 54 | double s = Math.sin(angle); 55 | double t = 1.0 - c; 56 | 57 | // Normalize axis input 58 | // Not necessary as caller is responsible for axis normality 59 | //double l = axis.lengthSquared(); 60 | //if (l == 0) return v; 61 | //if (l != 1) axis = axis.multiply(1/Math.sqrt(l)); 62 | 63 | double x = (c + axis.x*axis.x*t) * v.getX(), 64 | y = (c + axis.y*axis.y*t) * v.getY(), 65 | z = (c + axis.z*axis.z*t) * v.getZ(), 66 | tmp1 = axis.x*axis.y*t, 67 | tmp2 = axis.z*s; 68 | y += (tmp1 + tmp2) * v.getX(); 69 | x += (tmp1 - tmp2) * v.getY(); 70 | tmp1 = axis.x*axis.z*t; 71 | tmp2 = axis.y*s; 72 | z += (tmp1 - tmp2) * v.getX(); 73 | x += (tmp1 + tmp2) * v.getZ(); 74 | tmp1 = axis.y*axis.z*t; 75 | tmp2 = axis.x*s; 76 | z += (tmp1 + tmp2) * v.getY(); 77 | y += (tmp1 - tmp2) * v.getZ(); 78 | 79 | return new Vec3d(x, y, z); 80 | } 81 | } 82 | -------------------------------------------------------------------------------- /src/main/java/edu/jorbonism/cool_elytra/mixin/ClientPlayerEntityMixin.java: -------------------------------------------------------------------------------- 1 | package edu.jorbonism.cool_elytra.mixin; 2 | 3 | import com.mojang.authlib.GameProfile; 4 | 5 | import org.spongepowered.asm.mixin.Mixin; 6 | import org.spongepowered.asm.mixin.injection.At; 7 | import org.spongepowered.asm.mixin.injection.Inject; 8 | import org.spongepowered.asm.mixin.injection.callback.CallbackInfo; 9 | 10 | import edu.jorbonism.cool_elytra.CoolElytraClient; 11 | import edu.jorbonism.cool_elytra.config.CoolElytraConfig; 12 | import edu.jorbonism.cool_elytra.config.CoolElytraConfig.Mode; 13 | import net.minecraft.client.MinecraftClient; 14 | import net.minecraft.client.network.AbstractClientPlayerEntity; 15 | import net.minecraft.client.network.ClientPlayNetworkHandler; 16 | import net.minecraft.client.network.ClientPlayerEntity; 17 | import net.minecraft.client.recipebook.ClientRecipeBook; 18 | import net.minecraft.client.world.ClientWorld; 19 | import net.minecraft.stat.StatHandler; 20 | import net.minecraft.util.PlayerInput; 21 | import net.minecraft.util.math.Vec3d; 22 | 23 | @Mixin(ClientPlayerEntity.class) 24 | public abstract class ClientPlayerEntityMixin extends AbstractClientPlayerEntity { 25 | 26 | public ClientPlayerEntityMixin(ClientWorld world, GameProfile profile) { super(world, profile); } 27 | 28 | @Inject(at = @At("RETURN"), method = "(Lnet/minecraft/client/MinecraftClient;Lnet/minecraft/client/world/ClientWorld;Lnet/minecraft/client/network/ClientPlayNetworkHandler;Lnet/minecraft/stat/StatHandler;Lnet/minecraft/client/recipebook/ClientRecipeBook;Lnet/minecraft/util/PlayerInput;Z)V") 29 | public void init(MinecraftClient client, ClientWorld world, ClientPlayNetworkHandler networkHandler, StatHandler stats, ClientRecipeBook recipeBook, PlayerInput lastPlayerInput, boolean lastSprinting, CallbackInfo ci) { 30 | CoolElytraClient.left = CoolElytraClient.getAssumedLeft(this.getYaw()); 31 | } 32 | 33 | @Override 34 | public void changeLookDirection(double cursorDeltaX, double cursorDeltaY) { 35 | Vec3d facing = this.getRotationVecClient(); 36 | 37 | // set left vector to the assumed upright left if not in realistic 38 | if (!this.isGliding() || CoolElytraConfig.modMode != Mode.REALISTIC) { 39 | CoolElytraClient.left = CoolElytraClient.getAssumedLeft(this.getYaw()); 40 | if (CoolElytraConfig.modMode == Mode.CLASSIC) { 41 | CoolElytraClient.left = CoolElytraClient.rotateAxisAngle(CoolElytraClient.left, facing, CoolElytraClient.rollAngle * CoolElytraClient.TORAD); 42 | } 43 | super.changeLookDirection(cursorDeltaX, cursorDeltaY); 44 | return; 45 | } 46 | 47 | // recompute left vector since it tends to drift off of perpendicular/normalized 48 | CoolElytraClient.left = CoolElytraClient.left.subtract(facing.multiply(CoolElytraClient.left.dotProduct(facing))).normalize(); 49 | 50 | // pitch 51 | facing = CoolElytraClient.rotateAxisAngle(facing, CoolElytraClient.left, -0.15 * cursorDeltaY * CoolElytraClient.TORAD * CoolElytraConfig.pitchSensitivity); 52 | 53 | 54 | double rollAngle = 0.15 * cursorDeltaX * CoolElytraClient.TORAD; 55 | double yawAngle = 0.15 * CoolElytraClient.cursorDeltaZ * CoolElytraClient.TORAD; 56 | CoolElytraClient.cursorDeltaZ = 0; 57 | if ((this.isSneaking() ^ CoolElytraConfig.swap) && !CoolElytraClient.isKeyUpdate) { 58 | double tmp = rollAngle; 59 | rollAngle = yawAngle; 60 | yawAngle = tmp; 61 | } 62 | 63 | // yaw 64 | if (!CoolElytraClient.isKeyUpdate) yawAngle *= CoolElytraConfig.yawSensitivity; 65 | Vec3d up = facing.crossProduct(CoolElytraClient.left); 66 | facing = CoolElytraClient.rotateAxisAngle(facing, up, yawAngle); 67 | CoolElytraClient.left = CoolElytraClient.rotateAxisAngle(CoolElytraClient.left, up, yawAngle); 68 | 69 | // roll 70 | if (!CoolElytraClient.isKeyUpdate) rollAngle *= CoolElytraConfig.rollSensitivity; 71 | CoolElytraClient.left = CoolElytraClient.rotateAxisAngle(CoolElytraClient.left, facing, rollAngle); 72 | 73 | 74 | double deltaY = -Math.asin(facing.getY()) * CoolElytraClient.TODEG - this.getPitch(); 75 | double deltaX = -Math.atan2(facing.getX(), facing.getZ()) * CoolElytraClient.TODEG - this.getYaw(); 76 | 77 | super.changeLookDirection(deltaX / 0.15, deltaY / 0.15); 78 | } 79 | 80 | @Override 81 | public void travel(Vec3d movementInput) { 82 | CoolElytraClient.strafeInput = Math.signum(movementInput.x); 83 | super.travel(movementInput); 84 | } 85 | } -------------------------------------------------------------------------------- /src/main/java/edu/jorbonism/cool_elytra/mixin/GameRendererMixin.java: -------------------------------------------------------------------------------- 1 | package edu.jorbonism.cool_elytra.mixin; 2 | 3 | import edu.jorbonism.cool_elytra.CoolElytraClient; 4 | import edu.jorbonism.cool_elytra.config.CoolElytraConfig; 5 | import edu.jorbonism.cool_elytra.config.CoolElytraConfig.Mode; 6 | 7 | import org.spongepowered.asm.mixin.Final; 8 | import org.spongepowered.asm.mixin.Mixin; 9 | import org.spongepowered.asm.mixin.Shadow; 10 | import org.spongepowered.asm.mixin.injection.At; 11 | import org.spongepowered.asm.mixin.injection.Inject; 12 | import org.spongepowered.asm.mixin.injection.callback.CallbackInfo; 13 | 14 | import net.minecraft.client.MinecraftClient; 15 | import net.minecraft.client.render.GameRenderer; 16 | import net.minecraft.client.render.RenderTickCounter; 17 | import net.minecraft.util.math.MathHelper; 18 | import net.minecraft.util.math.Vec3d; 19 | 20 | @Mixin(GameRenderer.class) 21 | public abstract class GameRendererMixin { 22 | 23 | @Final @Shadow private MinecraftClient client; 24 | 25 | @Inject(at = @At("HEAD"), method = "renderWorld") 26 | public void renderWorld(RenderTickCounter tickCounter, CallbackInfo ci) { 27 | // timer stuff 28 | long time = System.nanoTime(); 29 | double frameTime = (time - CoolElytraClient.lastTime) * 1e-9; 30 | CoolElytraClient.lastTime = time; 31 | 32 | float tickDelta = tickCounter.getTickProgress(true); 33 | 34 | CoolElytraClient.isFrontView = this.client.options.getPerspective().isFrontView(); 35 | 36 | if (CoolElytraConfig.modMode == Mode.CLASSIC) { 37 | // original camera rolling 38 | if (this.client.player != null && this.client.player.isGliding() && !(this.client.player.isTouchingWater() || this.client.player.isInLava())) { 39 | Vec3d facing = this.client.player.getRotationVecClient(); 40 | Vec3d velocity = this.getPlayerInstantaneousVelocity(tickDelta); 41 | double horizontalFacing2 = facing.horizontalLengthSquared(); 42 | double horizontalSpeed2 = velocity.horizontalLengthSquared(); 43 | 44 | double angle = 0; 45 | if (horizontalFacing2 > 0.0D && horizontalSpeed2 > 0.0D) { 46 | double dot = (velocity.x * facing.x + velocity.z * facing.z) / Math.sqrt(horizontalFacing2 * horizontalSpeed2); // acos(dot) = angle between facing and velocity vectors 47 | if (dot >= 1.0) dot = 1.0; // hopefully fix world disappearing occassionally which I assume would be due to ^^^ sqrt precision limits 48 | else if (dot <= -1.0) dot = -1.0; 49 | double direction = Math.signum(velocity.x * facing.z - velocity.z * facing.x); // = which side laterally each vector is on 50 | angle = Math.atan(Math.sqrt(horizontalSpeed2) * Math.acos(dot) * CoolElytraConfig.wingPower) * direction * CoolElytraClient.TODEG; 51 | } 52 | // smooth changes to the roll angle and remove the bumpy crunchy 53 | angle += Math.pow(CoolElytraConfig.rollSmoothing, frameTime * 40) * (CoolElytraClient.rollAngle - angle); 54 | CoolElytraClient.rollAngle = angle; 55 | 56 | } else { 57 | CoolElytraClient.rollAngle = 0.0f; 58 | } 59 | 60 | CoolElytraClient.yawVelocity = 0; 61 | CoolElytraClient.rollVelocity = 0; 62 | 63 | } else if (CoolElytraConfig.modMode == Mode.REALISTIC) { 64 | // real rolling flight 65 | 66 | if (this.client.player != null && this.client.player.isGliding()) { 67 | // handle key input turning 68 | if (CoolElytraClient.strafeInput != 0 && !(this.client.player.isSneaking() ^ CoolElytraConfig.swap)) { 69 | CoolElytraClient.yawVelocity -= CoolElytraClient.strafeInput * frameTime * CoolElytraConfig.keyYawSensitivity * 25; 70 | if (CoolElytraClient.yawVelocity < -CoolElytraConfig.keyYawSpeedCap) CoolElytraClient.yawVelocity = -CoolElytraConfig.keyYawSpeedCap; 71 | else if (CoolElytraClient.yawVelocity > CoolElytraConfig.keyYawSpeedCap) CoolElytraClient.yawVelocity = CoolElytraConfig.keyYawSpeedCap; 72 | } else { 73 | CoolElytraClient.yawVelocity -= Math.signum(CoolElytraClient.yawVelocity) * Math.min(frameTime * CoolElytraConfig.keyYawSensitivity * 25 / CoolElytraConfig.keyYawMomentum, Math.abs(CoolElytraClient.yawVelocity)); 74 | } 75 | 76 | if (CoolElytraClient.strafeInput != 0 && (this.client.player.isSneaking() ^ CoolElytraConfig.swap)) { 77 | CoolElytraClient.rollVelocity -= CoolElytraClient.strafeInput * frameTime * CoolElytraConfig.keyRollSensitivity * 25; 78 | if (CoolElytraClient.rollVelocity < -CoolElytraConfig.keyRollSpeedCap) CoolElytraClient.rollVelocity = -CoolElytraConfig.keyRollSpeedCap; 79 | else if (CoolElytraClient.rollVelocity > CoolElytraConfig.keyRollSpeedCap) CoolElytraClient.rollVelocity = CoolElytraConfig.keyRollSpeedCap; 80 | } else { 81 | CoolElytraClient.rollVelocity -= Math.signum(CoolElytraClient.rollVelocity) * Math.min(frameTime * CoolElytraConfig.keyRollSensitivity * 25 / CoolElytraConfig.keyRollMomentum, Math.abs(CoolElytraClient.rollVelocity)); 82 | } 83 | 84 | CoolElytraClient.isKeyUpdate = true; 85 | CoolElytraClient.cursorDeltaZ = CoolElytraClient.yawVelocity; 86 | this.client.player.changeLookDirection(CoolElytraClient.rollVelocity, 0); 87 | CoolElytraClient.isKeyUpdate = false; 88 | 89 | 90 | double angle = -Math.acos(CoolElytraClient.left.dotProduct(CoolElytraClient.getAssumedLeft(this.client.player.getYaw()))) * CoolElytraClient.TODEG; 91 | if (CoolElytraClient.left.getY() < 0) angle = -angle; 92 | CoolElytraClient.rollAngle = angle; 93 | 94 | } else { 95 | CoolElytraClient.rollAngle = 0; 96 | CoolElytraClient.yawVelocity = 0; 97 | CoolElytraClient.rollVelocity = 0; 98 | } 99 | 100 | } else { 101 | CoolElytraClient.rollAngle = 0; 102 | CoolElytraClient.yawVelocity = 0; 103 | CoolElytraClient.rollVelocity = 0; 104 | } 105 | } 106 | 107 | public Vec3d getPlayerInstantaneousVelocity(float tickDelta) { 108 | // copying over the important bits of elytra flight code and cleaning it up 109 | // this is to smooth some jitteriness caused by rotation being frame-accurate but velocity only changing each tick 110 | 111 | assert this.client.player != null; 112 | Vec3d velocity = this.client.player.getVelocity(); 113 | if (tickDelta < 0.01f) 114 | return velocity; 115 | 116 | double newvx = velocity.x; 117 | double newvy = velocity.y; 118 | double newvz = velocity.z; 119 | double gravity = 0.08; 120 | 121 | Vec3d facing = this.client.player.getRotationVector(); 122 | float pitchRadians = this.client.player.getPitch() * 0.017453292f; 123 | double horizontalFacing2 = facing.horizontalLengthSquared(); 124 | double horizontalFacing = Math.sqrt(horizontalFacing2); 125 | double horizontalSpeed = velocity.horizontalLength(); 126 | 127 | newvy += gravity * (-1.0 + horizontalFacing2 * 0.75); 128 | 129 | if (horizontalFacing > 0.0) { 130 | if (velocity.y < 0.0) { // falling 131 | double lift = newvy * -0.1 * horizontalFacing2; 132 | newvx += facing.x * lift / horizontalFacing; 133 | newvy += lift; 134 | newvz += facing.z * lift / horizontalFacing; 135 | } 136 | 137 | if (pitchRadians < 0.0f) { // facing upwards 138 | double lift = horizontalSpeed * -(double)MathHelper.sin(pitchRadians) * 0.04; 139 | newvx += -facing.x * lift / horizontalFacing; 140 | newvy += lift * 3.2; 141 | newvz += -facing.z * lift / horizontalFacing; 142 | } 143 | 144 | newvx += (facing.x / horizontalFacing * horizontalSpeed - velocity.x) * 0.1; 145 | newvz += (facing.z / horizontalFacing * horizontalSpeed - velocity.z) * 0.1; 146 | } 147 | 148 | newvx *= 0.9900000095367432; 149 | newvy *= 0.9800000190734863; 150 | newvz *= 0.9900000095367432; 151 | 152 | if (CoolElytraClient.isRocketing) { 153 | newvx += facing.x * 0.1 + (facing.x * 1.5 - newvx) * 0.5; 154 | newvy += facing.y * 0.1 + (facing.y * 1.5 - newvy) * 0.5; 155 | newvz += facing.z * 0.1 + (facing.z * 1.5 - newvz) * 0.5; 156 | } 157 | 158 | return new Vec3d(MathHelper.lerp(tickDelta, velocity.x, newvx), MathHelper.lerp(tickDelta, velocity.y, newvy), MathHelper.lerp(tickDelta, velocity.z, newvz)); 159 | } 160 | } 161 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | 3 | # 4 | # Copyright © 2015-2021 the original authors. 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # https://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | # SPDX-License-Identifier: Apache-2.0 19 | # 20 | 21 | ############################################################################## 22 | # 23 | # Gradle start up script for POSIX generated by Gradle. 24 | # 25 | # Important for running: 26 | # 27 | # (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is 28 | # noncompliant, but you have some other compliant shell such as ksh or 29 | # bash, then to run this script, type that shell name before the whole 30 | # command line, like: 31 | # 32 | # ksh Gradle 33 | # 34 | # Busybox and similar reduced shells will NOT work, because this script 35 | # requires all of these POSIX shell features: 36 | # * functions; 37 | # * expansions «$var», «${var}», «${var:-default}», «${var+SET}», 38 | # «${var#prefix}», «${var%suffix}», and «$( cmd )»; 39 | # * compound commands having a testable exit status, especially «case»; 40 | # * various built-in commands including «command», «set», and «ulimit». 41 | # 42 | # Important for patching: 43 | # 44 | # (2) This script targets any POSIX shell, so it avoids extensions provided 45 | # by Bash, Ksh, etc; in particular arrays are avoided. 46 | # 47 | # The "traditional" practice of packing multiple parameters into a 48 | # space-separated string is a well documented source of bugs and security 49 | # problems, so this is (mostly) avoided, by progressively accumulating 50 | # options in "$@", and eventually passing that to Java. 51 | # 52 | # Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, 53 | # and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; 54 | # see the in-line comments for details. 55 | # 56 | # There are tweaks for specific operating systems such as AIX, CygWin, 57 | # Darwin, MinGW, and NonStop. 58 | # 59 | # (3) This script is generated from the Groovy template 60 | # https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt 61 | # within the Gradle project. 62 | # 63 | # You can find Gradle at https://github.com/gradle/gradle/. 64 | # 65 | ############################################################################## 66 | 67 | # Attempt to set APP_HOME 68 | 69 | # Resolve links: $0 may be a link 70 | app_path=$0 71 | 72 | # Need this for daisy-chained symlinks. 73 | while 74 | APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path 75 | [ -h "$app_path" ] 76 | do 77 | ls=$( ls -ld "$app_path" ) 78 | link=${ls#*' -> '} 79 | case $link in #( 80 | /*) app_path=$link ;; #( 81 | *) app_path=$APP_HOME$link ;; 82 | esac 83 | done 84 | 85 | # This is normally unused 86 | # shellcheck disable=SC2034 87 | APP_BASE_NAME=${0##*/} 88 | # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036) 89 | APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit 90 | 91 | # Use the maximum available, or set MAX_FD != -1 to use that value. 92 | MAX_FD=maximum 93 | 94 | warn () { 95 | echo "$*" 96 | } >&2 97 | 98 | die () { 99 | echo 100 | echo "$*" 101 | echo 102 | exit 1 103 | } >&2 104 | 105 | # OS specific support (must be 'true' or 'false'). 106 | cygwin=false 107 | msys=false 108 | darwin=false 109 | nonstop=false 110 | case "$( uname )" in #( 111 | CYGWIN* ) cygwin=true ;; #( 112 | Darwin* ) darwin=true ;; #( 113 | MSYS* | MINGW* ) msys=true ;; #( 114 | NONSTOP* ) nonstop=true ;; 115 | esac 116 | 117 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 118 | 119 | 120 | # Determine the Java command to use to start the JVM. 121 | if [ -n "$JAVA_HOME" ] ; then 122 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 123 | # IBM's JDK on AIX uses strange locations for the executables 124 | JAVACMD=$JAVA_HOME/jre/sh/java 125 | else 126 | JAVACMD=$JAVA_HOME/bin/java 127 | fi 128 | if [ ! -x "$JAVACMD" ] ; then 129 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 130 | 131 | Please set the JAVA_HOME variable in your environment to match the 132 | location of your Java installation." 133 | fi 134 | else 135 | JAVACMD=java 136 | if ! command -v java >/dev/null 2>&1 137 | then 138 | die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 139 | 140 | Please set the JAVA_HOME variable in your environment to match the 141 | location of your Java installation." 142 | fi 143 | fi 144 | 145 | # Increase the maximum file descriptors if we can. 146 | if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then 147 | case $MAX_FD in #( 148 | max*) 149 | # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked. 150 | # shellcheck disable=SC2039,SC3045 151 | MAX_FD=$( ulimit -H -n ) || 152 | warn "Could not query maximum file descriptor limit" 153 | esac 154 | case $MAX_FD in #( 155 | '' | soft) :;; #( 156 | *) 157 | # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked. 158 | # shellcheck disable=SC2039,SC3045 159 | ulimit -n "$MAX_FD" || 160 | warn "Could not set maximum file descriptor limit to $MAX_FD" 161 | esac 162 | fi 163 | 164 | # Collect all arguments for the java command, stacking in reverse order: 165 | # * args from the command line 166 | # * the main class name 167 | # * -classpath 168 | # * -D...appname settings 169 | # * --module-path (only if needed) 170 | # * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. 171 | 172 | # For Cygwin or MSYS, switch paths to Windows format before running java 173 | if "$cygwin" || "$msys" ; then 174 | APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) 175 | CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) 176 | 177 | JAVACMD=$( cygpath --unix "$JAVACMD" ) 178 | 179 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 180 | for arg do 181 | if 182 | case $arg in #( 183 | -*) false ;; # don't mess with options #( 184 | /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath 185 | [ -e "$t" ] ;; #( 186 | *) false ;; 187 | esac 188 | then 189 | arg=$( cygpath --path --ignore --mixed "$arg" ) 190 | fi 191 | # Roll the args list around exactly as many times as the number of 192 | # args, so each arg winds up back in the position where it started, but 193 | # possibly modified. 194 | # 195 | # NB: a `for` loop captures its iteration list before it begins, so 196 | # changing the positional parameters here affects neither the number of 197 | # iterations, nor the values presented in `arg`. 198 | shift # remove old arg 199 | set -- "$@" "$arg" # push replacement arg 200 | done 201 | fi 202 | 203 | 204 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 205 | DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' 206 | 207 | # Collect all arguments for the java command: 208 | # * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments, 209 | # and any embedded shellness will be escaped. 210 | # * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be 211 | # treated as '${Hostname}' itself on the command line. 212 | 213 | set -- \ 214 | "-Dorg.gradle.appname=$APP_BASE_NAME" \ 215 | -classpath "$CLASSPATH" \ 216 | org.gradle.wrapper.GradleWrapperMain \ 217 | "$@" 218 | 219 | # Stop when "xargs" is not available. 220 | if ! command -v xargs >/dev/null 2>&1 221 | then 222 | die "xargs is not available" 223 | fi 224 | 225 | # Use "xargs" to parse quoted args. 226 | # 227 | # With -n1 it outputs one arg per line, with the quotes and backslashes removed. 228 | # 229 | # In Bash we could simply go: 230 | # 231 | # readarray ARGS < <( xargs -n1 <<<"$var" ) && 232 | # set -- "${ARGS[@]}" "$@" 233 | # 234 | # but POSIX shell has neither arrays nor command substitution, so instead we 235 | # post-process each arg (as a line of input to sed) to backslash-escape any 236 | # character that might be a shell metacharacter, then use eval to reverse 237 | # that process (while maintaining the separation between arguments), and wrap 238 | # the whole thing up as a single "set" statement. 239 | # 240 | # This will of course break if any of these variables contains a newline or 241 | # an unmatched quote. 242 | # 243 | 244 | eval "set -- $( 245 | printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | 246 | xargs -n1 | 247 | sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | 248 | tr '\n' ' ' 249 | )" '"$@"' 250 | 251 | exec "$JAVACMD" "$@" -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . --------------------------------------------------------------------------------