added christmas tree as bush example

src/main/java/de/jottyfan/minecraft/GtamfmdClient.java

@@ -1,9 +1,13 @@
 package de.jottyfan.minecraft;
 
+import de.jottyfan.minecraft.block.ModBlocks;
 import net.fabricmc.api.ClientModInitializer;
+import net.fabricmc.fabric.api.client.rendering.v1.BlockRenderLayerMap;
+import net.minecraft.client.render.BlockRenderLayer;
 
 public class GtamfmdClient implements ClientModInitializer {
 	@Override
 	public void onInitializeClient() {
+		BlockRenderLayerMap.putBlock(ModBlocks.CHRISTMASTREE, BlockRenderLayer.CUTOUT);
 	}
 }

src/main/java/de/jottyfan/minecraft/block/ChristmasTree.java

@@ -0,0 +1,39 @@
+package de.jottyfan.minecraft.block;
+
+import de.jottyfan.minecraft.item.ModItems;
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockState;
+import net.minecraft.block.SweetBerryBushBlock;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.ActionResult;
+import net.minecraft.util.hit.BlockHitResult;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import net.minecraft.world.WorldView;
+import net.minecraft.world.event.GameEvent;
+
+public class ChristmasTree extends SweetBerryBushBlock {
+
+	public ChristmasTree(Settings settings) {
+		super(settings);
+	}
+
+	@Override
+	protected ItemStack getPickStack(WorldView world, BlockPos pos, BlockState state, boolean includeData) {
+		return new ItemStack(ModItems.GINGERBREAD);
+	}
+
+	@Override
+	protected ActionResult onUse(BlockState state, World world, BlockPos pos, PlayerEntity player, BlockHitResult hit) {
+		if (state.get(AGE) > 1) {
+			dropStack(world, pos, new ItemStack(ModItems.GINGERBREAD));
+			BlockState blockState = state.with(AGE, 1);
+			world.setBlockState(pos, blockState, Block.NOTIFY_LISTENERS);
+			world.emitGameEvent(GameEvent.BLOCK_CHANGE, pos, GameEvent.Emitter.of(player, blockState));
+			return ActionResult.SUCCESS;
+		} else {
+			return super.onUse(state, world, pos, player, hit);
+		}
+	}
+}

src/main/java/de/jottyfan/minecraft/block/ModBlocks.java

@@ -1,8 +1,11 @@
 package de.jottyfan.minecraft.block;
 
+import java.util.function.Function;
+
 import de.jottyfan.minecraft.Gtamfmd;
 import net.fabricmc.fabric.api.itemgroup.v1.ItemGroupEvents;
 import net.minecraft.block.AbstractBlock;
+import net.minecraft.block.AbstractBlock.Settings;
 import net.minecraft.block.Block;
 import net.minecraft.item.BlockItem;
 import net.minecraft.item.Item;
@@ -20,6 +23,16 @@ public class ModBlocks {
       AbstractBlock.Settings.create().strength(4f).requiresTool().sounds(BlockSoundGroup.AMETHYST_BLOCK));
   public static final Block RUBY_ORE = registerBlock(Identifier.of(Gtamfmd.MOD_ID, "ruby_ore"),
       AbstractBlock.Settings.create().strength(4f).requiresTool());
+  public static final Block CHRISTMASTREE = registerSpecialBlock(Identifier.of(Gtamfmd.MOD_ID, "christmastree"),
+  		AbstractBlock.Settings.create().ticksRandomly().noCollision().luminance(state -> 15),
+  		x -> new ChristmasTree(x));
+
+  // functional interface
+  private static Block registerSpecialBlock(Identifier identifier, Settings settings, Function<Settings, Block> function) {
+  	Block block = function.apply(settings.registryKey(RegistryKey.of(RegistryKeys.BLOCK, identifier)));
+   	registerBlockItem(identifier, block, new Item.Settings());
+    return Registry.register(Registries.BLOCK, identifier, block);
+  }
 
   private static Block registerBlock(Identifier identifier, Block.Settings settings) {
     Block block = new Block(settings.registryKey(RegistryKey.of(RegistryKeys.BLOCK, identifier)));

src/main/java/de/jottyfan/minecraft/item/StubItem.java

@@ -4,9 +4,11 @@ import java.util.Map;
 
 import org.joml.Random;
 
+import de.jottyfan.minecraft.block.ModBlocks;
 import net.minecraft.block.Block;
 import net.minecraft.block.Blocks;
 import net.minecraft.entity.ItemEntity;
+import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.item.ItemUsageContext;
@@ -14,6 +16,7 @@ import net.minecraft.item.Items;
 import net.minecraft.sound.SoundCategory;
 import net.minecraft.sound.SoundEvents;
 import net.minecraft.util.ActionResult;
+import net.minecraft.util.Hand;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.World;
 
@@ -45,6 +48,17 @@ public class StubItem extends Item {
 					world.spawnEntity(entity);
 				}
 			}
+		} else if (Blocks.DIRT.equals(clickedBlock) && world.getBlockState(pos.up()).isAir()) {
+			if (!world.isClient()) {
+				world.setBlockState(pos.up(), ModBlocks.CHRISTMASTREE.getDefaultState());
+				world.playSound(null, pos, SoundEvents.ITEM_CROP_PLANT,
+						SoundCategory.BLOCKS);
+				Hand hand = context.getHand();
+				PlayerEntity player = context.getPlayer();
+				ItemStack stack = player.getStackInHand(hand);
+				stack.increment(-1);
+				player.setStackInHand(hand, stack);
+			}
 		}
 		return ActionResult.SUCCESS;
 	}

src/main/resources/assets/gtamfmd/blockstates/christmastree.json

@@ -0,0 +1,9 @@
+{
+  "variants": {
+    "age=0": { "model": "gtamfmd:block/christmastree0" },
+    "age=1": { "model": "gtamfmd:block/christmastree1" },
+    "age=2": { "model": "gtamfmd:block/christmastree2" },
+    "age=3": { "model": "gtamfmd:block/christmastree3" }
+  }
+}
+

src/main/resources/assets/gtamfmd/lang/de_de.json

@@ -3,5 +3,6 @@
 	"item.gtamfmd.stub": "Stummel",
 	"item.gtamfmd.ruby": "Rubin",
   "item.gtamfmd.ruby_block": "Rubinblock",
-  "item.gtamfmd.ruby_ore": "Rubinerz"
+  "item.gtamfmd.ruby_ore": "Rubinerz",
+  "item.gtamfmd.christmastree": "Weihnachtsbaum"
 }

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

@@ -3,5 +3,6 @@
 	"item.gtamfmd.stub": "Stub",
 	"item.gtamfmd.ruby": "Ruby",
   "item.gtamfmd.ruby_block": "Ruby block",
-  "item.gtamfmd.ruby_ore": "Ruby ore"
+  "item.gtamfmd.ruby_ore": "Ruby ore",
+  "item.gtamfmd.christmastree": "Christmas tree"
 }

src/main/resources/assets/gtamfmd/models/block/christmastree0.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:block/cross",
+  "textures": {
+    "cross": "gtamfmd:block/christmastree0"
+  }
+}

src/main/resources/assets/gtamfmd/models/block/christmastree1.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:block/cross",
+  "textures": {
+    "cross": "gtamfmd:block/christmastree1"
+  }
+}

src/main/resources/assets/gtamfmd/models/block/christmastree2.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:block/cross",
+  "textures": {
+    "cross": "gtamfmd:block/christmastree2"
+  }
+}

src/main/resources/assets/gtamfmd/models/block/christmastree3.json

@@ -0,0 +1,6 @@
+{
+  "parent": "minecraft:block/cross",
+  "textures": {
+    "cross": "gtamfmd:block/christmastree3"
+  }
+}