108 lines
4.5 KiB
Java
108 lines
4.5 KiB
Java
package net.minecraft.server.commands;
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import com.mojang.brigadier.CommandDispatcher;
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import com.mojang.brigadier.exceptions.CommandSyntaxException;
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import com.mojang.brigadier.exceptions.SimpleCommandExceptionType;
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import net.minecraft.commands.CommandBuildContext;
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import net.minecraft.commands.CommandSourceStack;
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import net.minecraft.commands.Commands;
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import net.minecraft.commands.arguments.CompoundTagArgument;
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import net.minecraft.commands.arguments.ResourceArgument;
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import net.minecraft.commands.arguments.coordinates.Vec3Argument;
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import net.minecraft.commands.synchronization.SuggestionProviders;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Holder;
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import net.minecraft.core.registries.Registries;
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import net.minecraft.nbt.CompoundTag;
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import net.minecraft.network.chat.Component;
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import net.minecraft.server.level.ServerLevel;
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import net.minecraft.world.entity.Entity;
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import net.minecraft.world.entity.EntitySpawnReason;
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import net.minecraft.world.entity.EntityType;
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import net.minecraft.world.entity.Mob;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.phys.Vec3;
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public class SummonCommand {
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private static final SimpleCommandExceptionType ERROR_FAILED = new SimpleCommandExceptionType(Component.translatable("commands.summon.failed"));
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private static final SimpleCommandExceptionType ERROR_DUPLICATE_UUID = new SimpleCommandExceptionType(Component.translatable("commands.summon.failed.uuid"));
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private static final SimpleCommandExceptionType INVALID_POSITION = new SimpleCommandExceptionType(Component.translatable("commands.summon.invalidPosition"));
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public static void register(CommandDispatcher<CommandSourceStack> dispatcher, CommandBuildContext context) {
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dispatcher.register(
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Commands.literal("summon")
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.requires(Commands.hasPermission(2))
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.then(
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Commands.argument("entity", ResourceArgument.resource(context, Registries.ENTITY_TYPE))
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.suggests(SuggestionProviders.cast(SuggestionProviders.SUMMONABLE_ENTITIES))
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.executes(
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commandContext -> spawnEntity(
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commandContext.getSource(),
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ResourceArgument.getSummonableEntityType(commandContext, "entity"),
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commandContext.getSource().getPosition(),
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new CompoundTag(),
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true
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)
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)
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.then(
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Commands.argument("pos", Vec3Argument.vec3())
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.executes(
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commandContext -> spawnEntity(
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commandContext.getSource(),
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ResourceArgument.getSummonableEntityType(commandContext, "entity"),
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Vec3Argument.getVec3(commandContext, "pos"),
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new CompoundTag(),
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true
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)
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)
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.then(
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Commands.argument("nbt", CompoundTagArgument.compoundTag())
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.executes(
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commandContext -> spawnEntity(
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commandContext.getSource(),
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ResourceArgument.getSummonableEntityType(commandContext, "entity"),
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Vec3Argument.getVec3(commandContext, "pos"),
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CompoundTagArgument.getCompoundTag(commandContext, "nbt"),
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false
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)
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)
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)
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)
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)
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);
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}
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public static Entity createEntity(CommandSourceStack source, Holder.Reference<EntityType<?>> type, Vec3 pos, CompoundTag tag, boolean randomizeProperties) throws CommandSyntaxException {
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BlockPos blockPos = BlockPos.containing(pos);
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if (!Level.isInSpawnableBounds(blockPos)) {
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throw INVALID_POSITION.create();
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} else {
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CompoundTag compoundTag = tag.copy();
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compoundTag.putString("id", type.key().location().toString());
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ServerLevel serverLevel = source.getLevel();
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Entity entity = EntityType.loadEntityRecursive(compoundTag, serverLevel, EntitySpawnReason.COMMAND, entityx -> {
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entityx.snapTo(pos.x, pos.y, pos.z, entityx.getYRot(), entityx.getXRot());
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return entityx;
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});
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if (entity == null) {
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throw ERROR_FAILED.create();
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} else {
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if (randomizeProperties && entity instanceof Mob) {
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((Mob)entity).finalizeSpawn(source.getLevel(), source.getLevel().getCurrentDifficultyAt(entity.blockPosition()), EntitySpawnReason.COMMAND, null);
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}
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if (!serverLevel.tryAddFreshEntityWithPassengers(entity)) {
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throw ERROR_DUPLICATE_UUID.create();
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} else {
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return entity;
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}
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}
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}
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}
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private static int spawnEntity(CommandSourceStack source, Holder.Reference<EntityType<?>> type, Vec3 pos, CompoundTag tag, boolean randomizeProperties) throws CommandSyntaxException {
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Entity entity = createEntity(source, type, pos, tag, randomizeProperties);
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source.sendSuccess(() -> Component.translatable("commands.summon.success", entity.getDisplayName()), true);
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return 1;
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}
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}
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