Azalea Growth Control

Evidence

Ran on Kiln's test stand (2026-11-04): AzaleaGrowthControlFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/core/RegistryAccess; AzaleaGrowthControlFabricClient did not start: java.lang.NoClassDefFoundError: net/minecraft/core/RegistryAccess.

What it needs from Kiln

• an access widener
• Mixin
• net.minecraft.core.HolderGetter
• net.minecraft.core.HolderSet
• net.minecraft.core.HolderSet.Named
• net.minecraft.data.worldgen.BootstrapContext
• net.minecraft.data.worldgen.features.CaveFeatures
• net.minecraft.data.worldgen.features.TreeFeatures
• net.minecraft.data.worldgen.placement.PlacementUtils
• net.minecraft.tags.BlockTags
• net.minecraft.world.level.levelgen.blockpredicates.BlockPredicate
• net.minecraft.world.level.levelgen.blockpredicates.MatchingBiomesPredicate
• net.minecraft.world.level.levelgen.feature.RootSystemFeature
• net.minecraft.world.level.levelgen.feature.stateproviders.BlockStateProvider
• net.minecraft.world.level.levelgen.placement.PlacementModifier
• net.minecraft.core.RegistryAccess
• Direction.getUnitVec3i()
• Registries.BIOME
• Registries.FEATURE
• Blocks.HANGING_ROOTS
• Blocks.ROOTED_DIRT

On the roadmap: Code next to data (0.3), Mixin (0.5)

In the author's words

Limits azalea generation to appropriate biomes. Because even trees need boundaries.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file azaleagrowthcontrol-v26.3.0-mc26.3.x+fabric.jar. The scan reads the mod's classes; it does not run them.