fix ascending rail hitbox in 1.10

src/main/java/de/florianmichael/viafabricplus/injection/mixin/fixes/minecraft/block/MixinAbstractRailBlock.java

@@ -0,0 +1,58 @@
+/*
+ * This file is part of ViaFabricPlus - https://github.com/FlorianMichael/ViaFabricPlus
+ * Copyright (C) 2021-2024 FlorianMichael/EnZaXD <florian.michael07@gmail.com> and RK_01/RaphiMC
+ * Copyright (C) 2023-2024 contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package de.florianmichael.viafabricplus.injection.mixin.fixes.minecraft.block;
+
+import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
+import de.florianmichael.viafabricplus.protocoltranslator.ProtocolTranslator;
+import net.minecraft.block.*;
+import net.minecraft.util.shape.VoxelShape;
+import net.minecraft.util.shape.VoxelShapes;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(AbstractRailBlock.class)
+public abstract class MixinAbstractRailBlock extends Block {
+
+    @Shadow
+    @Final
+    protected static VoxelShape ASCENDING_SHAPE;
+
+    @Unique
+    private static final VoxelShape viaFabricPlus$ascending_shape_r1_10_x = VoxelShapes.fullCube();
+
+    public MixinAbstractRailBlock(Settings settings) {
+        super(settings);
+    }
+
+    @Redirect(method = "getOutlineShape", at = @At(value = "FIELD", target = "Lnet/minecraft/block/AbstractRailBlock;ASCENDING_SHAPE:Lnet/minecraft/util/shape/VoxelShape;"))
+    private VoxelShape changeOutlineShape() {
+        // https://bugs.mojang.com/browse/MC-102638
+        if (ProtocolTranslator.getTargetVersion().equalTo(ProtocolVersion.v1_10)) {
+            return viaFabricPlus$ascending_shape_r1_10_x;
+        } else {
+            return ASCENDING_SHAPE;
+        }
+    }
+
+}

src/main/resources/viafabricplus.mixins.json

@@ -67,6 +67,7 @@
     "fixes.minecraft.MixinWorldRenderer",
     "fixes.minecraft.block.MixinAbstractBlock",
     "fixes.minecraft.block.MixinAbstractBlock_AbstractBlockState",
+    "fixes.minecraft.block.MixinAbstractRailBlock",
     "fixes.minecraft.block.MixinAbstractSignBlock",
     "fixes.minecraft.block.MixinAnvilBlock",
     "fixes.minecraft.block.MixinBedBlock",