working

Author: tildejustin

.github/workflows/build.yml

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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:
+    strategy:
+      matrix:
+        # Use these Java versions
+        java: [
+          17,    # Current Java LTS & minimum supported by Minecraft
+        ]
+        # and run on both Linux and Windows
+        os: [ ubuntu-22.04, windows-2022 ]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: checkout repository
+        uses: actions/checkout@v3
+      - name: validate gradle wrapper
+        uses: gradle/wrapper-validation-action@v1
+      - name: setup jdk ${{ matrix.java }}
+        uses: actions/setup-java@v3
+        with:
+          java-version: ${{ matrix.java }}
+          distribution: 'microsoft'
+      - name: make gradle wrapper executable
+        if: ${{ runner.os != 'Windows' }}
+        run: chmod +x ./gradlew
+      - name: build
+        run: ./gradlew build
+      - name: capture build artifacts
+        if: ${{ runner.os == 'Linux' && matrix.java == '17' }} # Only upload artifacts built from latest java on one OS
+        uses: actions/upload-artifact@v3
+        with:
+          name: Artifacts
+          path: build/libs/

.gitignore

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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

1.10-1.12.2/build.gradle

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+apply plugin: "legacy-looming"
+
+dependencies {
+    minecraft "com.mojang:minecraft:$minecraft_version"
+    mappings(legacy.yarn(minecraft_version, yarn_build))
+}

1.10-1.12.2/gradle.properties

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+minecraft_version=1.12.2
+target_version=1.10-1.12.2
+yarn_build=514

1.10-1.12.2/src/main/java/dev/tildejustin/half_heart_hardcore/mixin/InGameHudMixin.java

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+package dev.tildejustin.half_heart_hardcore.mixin;
+
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gui.DrawableHelper;
+import net.minecraft.client.gui.hud.InGameHud;
+import net.minecraft.entity.player.ClientPlayerEntity;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.Slice;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(InGameHud.class)
+public abstract class InGameHudMixin extends DrawableHelper {
+    @Unique
+    private int count = 0;
+
+    @Redirect(
+            method = "renderStatusBars",
+            at = @At(
+                    value = "INVOKE",
+                    target = "Lnet/minecraft/client/gui/hud/InGameHud;drawTexture(IIIIII)V",
+                    ordinal = 0
+            ),
+            slice = @Slice(
+                    from = @At(
+                            value = "INVOKE",
+                            target = "Lnet/minecraft/world/level/LevelProperties;isHardcore()Z"
+                    )
+            )
+    )
+    private void skipHeartRendering(InGameHud instance, int x, int y, int u, int v, int width, int height) {
+        ClientPlayerEntity player = MinecraftClient.getInstance().player;
+        if (this.count < player.getMaxHealth() + player.getAbsorption()) {
+            this.drawTexture(x, y, u, v, width, height);
+        }
+        this.count++;
+    }
+
+    @Inject(method = "renderStatusBars", at = @At(value = "INVOKE", target = "Lnet/minecraft/util/profiler/Profiler;swap(Ljava/lang/String;)V", ordinal = 1))
+    private void resetCount(CallbackInfo ci) {
+        this.count = 0;
+    }
+}

1.10-1.12.2/src/main/java/dev/tildejustin/half_heart_hardcore/mixin/LevelInfoMixin.java

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+package dev.tildejustin.half_heart_hardcore.mixin;
+
+import net.minecraft.world.GameMode;
+import net.minecraft.world.level.LevelInfo;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.ModifyVariable;
+
+@Mixin(LevelInfo.class)
+public abstract class LevelInfoMixin {
+    @ModifyVariable(
+            method = "<init>(JLnet/minecraft/world/GameMode;ZZLnet/minecraft/world/level/LevelGeneratorType;)V",
+            at = @At(
+                    value = "HEAD"
+            ),
+            ordinal = 0,
+            argsOnly = true
+    )
+    private static GameMode setGameMode(GameMode gameMode) {
+        return GameMode.SURVIVAL;
+    }
+
+    @ModifyVariable(
+            method = "<init>(JLnet/minecraft/world/GameMode;ZZLnet/minecraft/world/level/LevelGeneratorType;)V",
+            at = @At(
+                    value = "HEAD"
+            ),
+            ordinal = 1,
+            argsOnly = true
+    )
+    private static boolean setHardcore(boolean hardcore) {
+        return true;
+    }
+}

1.10-1.12.2/src/main/java/dev/tildejustin/half_heart_hardcore/mixin/PlayerEntityMixin.java

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+package dev.tildejustin.half_heart_hardcore.mixin;
+
+import net.minecraft.entity.LivingEntity;
+import net.minecraft.entity.attribute.EntityAttributes;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.world.World;
+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(PlayerEntity.class)
+public abstract class PlayerEntityMixin extends LivingEntity {
+    public PlayerEntityMixin(World world) {
+        super(world);
+    }
+
+    @Inject(method = "initializeAttributes", at = @At(value = "TAIL"))
+    private void setMaxHealth(CallbackInfo ci) {
+        this.getAttributeContainer().get(EntityAttributes.GENERIC_MAX_HEALTH).setBaseValue(1);
+    }
+}

1.10-1.12.2/src/main/resources/fabric.mod.json

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+{
+  "schemaVersion": 1,
+  "id": "half-heart-hardcore-mixin",
+  "version": "${version}",
+  "name": "Half Heart Hardcore",
+  "description": "",
+  "authors": [
+    "tildejustin"
+  ],
+  "contact": {
+    "sources": "https://github.com/tildejustin/half-heart-hardcore"
+  },
+  "license": "MIT",
+  "environment": "*",
+  "mixins": [
+    "half-heart-hardcore.mixins.json"
+  ],
+  "depends": {
+    "minecraft": ">=1.10 <1.13"
+  }
+}

1.10-1.12.2/src/main/resources/half-heart-hardcore.mixins.json

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+{
+  "required": true,
+  "package": "dev.tildejustin.half_heart_hardcore.mixin",
+  "compatibilityLevel": "JAVA_8",
+  "mixins": [
+    "LevelInfoMixin",
+    "PlayerEntityMixin"
+  ],
+  "client": [
+    "InGameHudMixin"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  }
+}

1.13-1.13.2/build.gradle

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+apply plugin: "legacy-looming"
+
+dependencies {
+    minecraft "com.mojang:minecraft:$minecraft_version"
+    mappings(legacy.yarn(minecraft_version, yarn_build))
+}