feat: 适配 26.4 并新增横向流动水不产生碎冰规则

- gradle.properties 切换到 26.4-snapshot-4 / Loom 1.19-SNAPSHOT / Loader 0.20.0 / Fabric API 0.163.0+26.4 / Carpet 26.4-beta-3
- 新增规则 noBrittleIceFromFlowingWater，默认关闭
- LiquidBlock#shouldSpreadLiquid 用 WrapOperation 拦截碎冰替换：只有竖直下落的水（FlowingFluid#isFalling）才允许把邻接蓝冰转成碎冰，横向流动的水跳过
- 补 zh_cn/en_us 规则名与描述

gradle.properties

@@ -5,13 +5,13 @@ org.gradle.configuration-cache=true
 
 # Fabric Properties
 # check these on https://fabricmc.net/develop
-minecraft_version=26.1.2
-loader_version=0.19.5
-loom_version=1.18-SNAPSHOT
+minecraft_version=26.4-snapshot-4
+loader_version=0.20.0
+loom_version=1.19-SNAPSHOT
 # Mod Properties
-mod_version = 0.25.0
+mod_version = 0.26.0-26.4
 maven_group = com.github.zly2006
 archives_base_name = carpet-sls-addition
 # Dependencies
-fabric_version=0.155.3+26.1.2
-carpet_core_version=26.1+v260401
+fabric_version=0.163.0+26.4
+carpet_core_version=26.4-beta-3+v261013

src/main/java/com/github/zly2006/carpetslsaddition/SLSCarpetSettings.java

@@ -83,4 +83,7 @@ public class SLSCarpetSettings {
 
     @Rule(categories = {SLSA, RuleCategory.FEATURE})
     public static boolean slsBoardEnabled = false;
+
+    @Rule(categories = {SLSA, RuleCategory.FEATURE})
+    public static boolean noBrittleIceFromFlowingWater = false;
 }

src/main/java/com/github/zly2006/carpetslsaddition/mixin/block/MixinFlowingWaterBrittleIce.java

@@ -0,0 +1,50 @@
+package com.github.zly2006.carpetslsaddition.mixin.block;
+
+import com.github.zly2006.carpetslsaddition.SLSCarpetSettings;
+import com.llamalad7.mixinextras.injector.wrapoperation.Operation;
+import com.llamalad7.mixinextras.injector.wrapoperation.WrapOperation;
+import net.minecraft.core.BlockPos;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.block.LiquidBlock;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.material.FlowingFluid;
+import net.minecraft.world.level.material.FluidState;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+
+/**
+ * 26.4 快照加入的“碎冰”（Brittle Ice）机制：
+ * LiquidBlock#shouldSpreadLiquid 中，水流方块任意水平方向的邻居是蓝冰时，
+ * 会把当前水流方块替换为碎冰。
+ *
+ * 开启 noBrittleIceFromFlowingWater 规则后：
+ * 仅当当前水方块处于“下落”状态（FlowingFluid#isFalling，即非水源且流体等级=8）时，
+ * 才允许它被替换为碎冰；纯横向流动的水不再触发该替换，以保护蓝冰水道。
+ *
+ * 实现方式：用 WrapOperation 包住 shouldSpreadLiquid 里对 Level#setBlockAndUpdate 的调用，
+ * 只在「目标方块是 BRITTLE_ICE」且「当前水不是下落状态」时跳过该次设置，其余调用原样放行。
+ */
+@Mixin(LiquidBlock.class)
+public class MixinFlowingWaterBrittleIce {
+    @WrapOperation(
+        method = "shouldSpreadLiquid",
+        at = @At(value = "INVOKE", target = "Lnet/minecraft/world/level/Level;setBlockAndUpdate(Lnet/minecraft/core/BlockPos;Lnet/minecraft/world/level/block/state/BlockState;)Z")
+    )
+    private boolean wrapSetBlockAndUpdate(Level level, BlockPos pos, BlockState newState,
+                                          Operation<Boolean> original) {
+        if (SLSCarpetSettings.noBrittleIceFromFlowingWater
+            && newState.is(Blocks.BRITTLE_ICE)) {
+            FluidState current = level.getFluidState(pos);
+            if (!isFalling(current)) {
+                return false; // 跳过把这块水替换成碎冰
+            }
+        }
+        return original.call(level, pos, newState);
+    }
+
+    private static boolean isFalling(FluidState fluid) {
+        if (!(fluid.getType() instanceof FlowingFluid flowing)) return false;
+        return flowing.isFalling(fluid);
+    }
+}

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

@@ -76,5 +76,7 @@
   "carpet.rule.stackableVehicles.name": "Stackable vehicles",
   "carpet.rule.stackableVehicles.desc": "Minecarts and boats can stack up to 64, auto-merging on pickup",
   "carpet.rule.slsBoardEnabled.name": "Enable boards",
-  "carpet.rule.slsBoardEnabled.desc": "Allow players to use /slsboard to show death/mining leaderboards"
+  "carpet.rule.slsBoardEnabled.desc": "Allow players to use /slsboard to show death/mining leaderboards",
+  "carpet.rule.noBrittleIceFromFlowingWater.name": "No brittle ice from flowing water",
+  "carpet.rule.noBrittleIceFromFlowingWater.desc": "Only water flowing straight down onto blue ice forms brittle ice. Horizontally flowing water will not."
 }

src/main/resources/assets/slsaddition/lang/zh_cn.json

@@ -76,5 +76,7 @@
   "carpet.rule.stackableVehicles.name": "载具可堆叠",
   "carpet.rule.stackableVehicles.desc": "矿车和船的物品可以堆叠到64，拾取时自动合并",
   "carpet.rule.slsBoardEnabled.name": "启用榜单",
-  "carpet.rule.slsBoardEnabled.desc": "允许玩家用 /slsboard 显示死亡榜/挖掘榜"
+  "carpet.rule.slsBoardEnabled.desc": "允许玩家用 /slsboard 显示死亡榜/挖掘榜",
+  "carpet.rule.noBrittleIceFromFlowingWater.name": "横向流动水不产生碎冰",
+  "carpet.rule.noBrittleIceFromFlowingWater.desc": "只有竖直向下的水流接触蓝冰时才会产生碎冰，横向流动的水不再转化"
 }

src/main/resources/slsaddition.mixins.json

@@ -12,6 +12,7 @@
     "block.MixinDecoratedPotBlock",
     "block.MixinTrialSpawnerData",
     "block.MixinTrialSpawnerState",
+    "block.MixinFlowingWaterBrittleIce",
     "item.SlotMixin",
     "carpet.MixinEntityPlayerMPFake",
     "carpet.MixinPlayerCommand",