1 files changed, 95 insertions, 0 deletions
diff --git a/src/main/java/ski/kramkow/mcmod/eyeofnether/EyeOfNetherItem.java b/src/main/java/ski/kramkow/mcmod/eyeofnether/EyeOfNetherItem.java
new file mode 100644
index 0000000..50d85da
--- /dev/null
+++ b/src/main/java/ski/kramkow/mcmod/eyeofnether/EyeOfNetherItem.java
@@ -0,0 +1,95 @@
+package ski.kramkow.mcmod.eyeofnether;
+
+import com.mojang.datafixers.util.Pair;
+
+import net.minecraft.entity.EyeOfEnderEntity;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.registry.Registry;
+import net.minecraft.registry.RegistryKeys;
+import net.minecraft.registry.entry.RegistryEntry;
+import net.minecraft.registry.entry.RegistryEntry.Reference;
+import net.minecraft.registry.entry.RegistryEntryList;
+import net.minecraft.registry.entry.RegistryEntryList.Direct;
+import net.minecraft.server.world.ServerWorld;
+import net.minecraft.sound.SoundCategory;
+import net.minecraft.sound.SoundEvents;
+import net.minecraft.stat.Stats;
+import net.minecraft.util.Hand;
+import net.minecraft.util.TypedActionResult;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import net.minecraft.world.WorldEvents;
+import net.minecraft.world.event.GameEvent;
+import net.minecraft.world.gen.structure.Structure;
+import net.minecraft.world.gen.structure.StructureKeys;
+
+public class EyeOfNetherItem extends Item {
+    public EyeOfNetherItem(final Settings settings) {
+        super(settings);
+    }
+
+    @Override
+    public TypedActionResult<ItemStack> use(final World world, final PlayerEntity user, final Hand hand) {
+        user.setCurrentHand(hand);
+        final ItemStack stack = user.getStackInHand(hand);
+        if (world instanceof final ServerWorld serverWorld) {
+            if (world.getRegistryKey() != World.NETHER) {
+                if (!user.getAbilities().creativeMode) {
+                    // This explodes at the feet, sending you up. Accidentally very funny.
+                    world.createExplosion(null, world.getDamageSources().explosion(user, user), null, user.getPos(),
+                            1.0f, true, World.ExplosionSourceType.NONE);
+                    stack.decrement(1);
+                }
+                return TypedActionResult.consume(stack);
+            }
+            Pair<BlockPos, RegistryEntry<Structure>> pos_pair = null;
+            final Registry<Structure> registry = serverWorld.getRegistryManager().get(RegistryKeys.STRUCTURE);
+            Reference<Structure> fortress = registry.getEntry(StructureKeys.FORTRESS).orElse(null);
+            if (fortress != null) {
+                Direct<Structure> registryEntryList = RegistryEntryList.of(fortress);
+                pos_pair = serverWorld.getChunkManager().getChunkGenerator().locateStructure(serverWorld,
+                        registryEntryList,
+                        user.getBlockPos(), 100, false);
+            }
+            if (pos_pair != null) {
+                user.swingHand(hand, true);
+                if (!user.getAbilities().creativeMode) {
+                    stack.decrement(1);
+                }
+
+                // Worth changing this and the sound/event if/when that gets replaced with a
+                // custom entity.
+                final EyeOfEnderEntity entity = new EyeOfEnderEntity(
+                        world,
+                        user.getX(), user.getBodyY(0.5), user.getZ());
+                entity.setItem(stack);
+                entity.initTargetPos(pos_pair.getFirst());
+                world.spawnEntity(entity);
+
+                float pitch = 0.35f + world.getRandom().nextFloat() * 0.15f;
+                world.playSound(
+                        null,
+                        user.getX(), user.getY(), user.getZ(),
+                        SoundEvents.ENTITY_ENDER_EYE_LAUNCH,
+                        SoundCategory.NEUTRAL,
+                        0.5f, pitch);
+
+                world.syncWorldEvent(
+                        null,
+                        WorldEvents.EYE_OF_ENDER_LAUNCHES,
+                        user.getBlockPos(),
+                        0);
+                world.emitGameEvent(
+                        GameEvent.PROJECTILE_SHOOT,
+                        entity.getPos(),
+                        GameEvent.Emitter.of(user));
+                user.incrementStat(Stats.USED.getOrCreateStat(this));
+
+                return TypedActionResult.success(stack);
+            }
+        }
+        return TypedActionResult.consume(stack);
+    }
+}