123 lines
5 KiB
Diff
123 lines
5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: dfsek <dfsek@protonmail.com>
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Date: Sat, 19 Jun 2021 20:15:59 -0700
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Subject: [PATCH] Add Feature Generation API
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diff --git a/src/main/java/io/papermc/paper/world/generation/CraftProtoWorld.java b/src/main/java/io/papermc/paper/world/generation/CraftProtoWorld.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..90a7c87d859d5d4f948a416eda0afbdf802e86ed
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/world/generation/CraftProtoWorld.java
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@@ -0,0 +1,94 @@
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+package io.papermc.paper.world.generation;
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+
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+import net.minecraft.core.BlockPos;
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+import net.minecraft.server.level.WorldGenRegion;
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+import net.minecraft.world.entity.Mob;
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+import net.minecraft.world.entity.MobSpawnType;
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+import net.minecraft.world.entity.SpawnGroupData;
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+import org.bukkit.World;
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+import org.bukkit.block.data.BlockData;
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+import org.bukkit.craftbukkit.block.data.CraftBlockData;
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+import org.bukkit.entity.Entity;
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+import org.bukkit.event.entity.CreatureSpawnEvent;
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+import org.bukkit.util.Vector;
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+import org.jetbrains.annotations.NotNull;
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+import org.jetbrains.annotations.Nullable;
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+
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+import java.util.Objects;
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+import java.util.function.Consumer;
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+
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+public class CraftProtoWorld implements ProtoWorld {
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+ private WorldGenRegion region;
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+
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+ public CraftProtoWorld(WorldGenRegion region) {
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+ this.region = region;
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+ }
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+
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+ public void clearReference() {
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+ region = null;
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+ }
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+
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+ @Override
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+ public void setBlockData(int x, int y, int z, @NotNull BlockData data) {
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+ BlockPos position = new BlockPos(x, y, z);
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+ getDelegate().setBlock(position, ((CraftBlockData) data).getState(), 3);
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+ }
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+
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+ @Override
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+ public void scheduleBlockUpdate(int x, int y, int z) {
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+ BlockPos position = new BlockPos(x, y, z);
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+ getDelegate().getBlockTicks().scheduleTick(position, getDelegate().getBlockIfLoaded(position), 0);
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+ }
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+
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+ @Override
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+ public void scheduleFluidUpdate(int x, int y, int z) {
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+ BlockPos position = new BlockPos(x, y, z);
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+ getDelegate().getLiquidTicks().scheduleTick(position, getDelegate().getFluidState(position).getType(), 0);
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+ }
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+
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+ @Override
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+ public @NotNull World getWorld() {
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+ // reading/writing the returned Minecraft world causes a deadlock.
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+ // By implementing this, and covering it in warnings, we're assuming people won't be stupid, and
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+ // if they are stupid, they'll figure it out pretty fast.
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+ return getDelegate().getMinecraftWorld().getWorld();
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+ }
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+
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+ @Override
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+ public @NotNull BlockData getBlockData(int x, int y, int z) {
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+ return CraftBlockData.fromData(getDelegate().getBlockState(new BlockPos(x, y, z)));
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+ }
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+
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+ @Override
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+ public int getCenterChunkX() {
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+ return getDelegate().getCenter().x;
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+ }
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+
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+ @Override
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+ public int getCenterChunkZ() {
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+ return getDelegate().getCenter().z;
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+ }
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+
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+ @SuppressWarnings({"unchecked", "deprecation"})
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+ @Override
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+ public <T extends Entity> @NotNull T spawn(@NotNull Vector location, @NotNull Class<T> clazz, @Nullable Consumer<T> function, CreatureSpawnEvent.@NotNull SpawnReason reason) throws IllegalArgumentException {
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+ net.minecraft.world.entity.Entity entity = getDelegate().getMinecraftWorld().getWorld().createEntity(location.toLocation(getWorld()), clazz);
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+ Objects.requireNonNull(entity, "Cannot spawn null entity");
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+ if (entity instanceof Mob) {
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+ ((Mob) entity).finalizeSpawn(getDelegate(), getDelegate().getCurrentDifficultyAt(entity.blockPosition()), MobSpawnType.COMMAND, (SpawnGroupData) null, null);
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+ }
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+
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+ if (function != null) {
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+ function.accept((T) entity.getBukkitEntity());
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+ }
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+
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+ getDelegate().addEntity(entity, reason);
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+ return (T) entity.getBukkitEntity();
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+ }
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+
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+ @NotNull
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+ private WorldGenRegion getDelegate() {
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+ return Objects.requireNonNull(region, "Cannot access ProtoWorld after generation!");
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+ }
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+}
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+
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diff --git a/src/main/java/org/bukkit/craftbukkit/generator/CustomChunkGenerator.java b/src/main/java/org/bukkit/craftbukkit/generator/CustomChunkGenerator.java
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index 46ce973ca68420825316352ad4df907edf52bfec..65e9ecda0df8a22f93f5979a8c9ac74e9f0ba042 100644
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--- a/src/main/java/org/bukkit/craftbukkit/generator/CustomChunkGenerator.java
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+++ b/src/main/java/org/bukkit/craftbukkit/generator/CustomChunkGenerator.java
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@@ -191,6 +191,12 @@ public class CustomChunkGenerator extends InternalChunkGenerator {
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if (this.generator.shouldGenerateDecorations()) {
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this.delegate.applyBiomeDecoration(region, accessor);
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}
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+
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+ // Paper start
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+ io.papermc.paper.world.generation.CraftProtoWorld protoWorld = new io.papermc.paper.world.generation.CraftProtoWorld(region);
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+ generator.generateDecorations(protoWorld);
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+ protoWorld.clearReference(); // make sure people dont try to use the ProtoWorld after we're done with it.
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+ // Paper end
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}
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@Override
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