343 lines
15 KiB
Java
343 lines
15 KiB
Java
package net.minecraft.server.commands;
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import com.mojang.brigadier.CommandDispatcher;
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import com.mojang.brigadier.arguments.DoubleArgumentType;
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import com.mojang.brigadier.exceptions.CommandSyntaxException;
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import com.mojang.brigadier.exceptions.Dynamic2CommandExceptionType;
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import com.mojang.brigadier.exceptions.Dynamic3CommandExceptionType;
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import com.mojang.brigadier.exceptions.DynamicCommandExceptionType;
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import java.util.stream.Stream;
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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.SharedSuggestionProvider;
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import net.minecraft.commands.arguments.EntityArgument;
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import net.minecraft.commands.arguments.ResourceArgument;
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import net.minecraft.commands.arguments.ResourceLocationArgument;
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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.network.chat.Component;
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import net.minecraft.resources.ResourceLocation;
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import net.minecraft.world.entity.Entity;
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import net.minecraft.world.entity.LivingEntity;
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import net.minecraft.world.entity.ai.attributes.Attribute;
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import net.minecraft.world.entity.ai.attributes.AttributeInstance;
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import net.minecraft.world.entity.ai.attributes.AttributeMap;
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import net.minecraft.world.entity.ai.attributes.AttributeModifier;
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public class AttributeCommand {
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private static final DynamicCommandExceptionType ERROR_NOT_LIVING_ENTITY = new DynamicCommandExceptionType(
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object -> Component.translatableEscape("commands.attribute.failed.entity", object)
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);
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private static final Dynamic2CommandExceptionType ERROR_NO_SUCH_ATTRIBUTE = new Dynamic2CommandExceptionType(
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(object, object2) -> Component.translatableEscape("commands.attribute.failed.no_attribute", object, object2)
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);
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private static final Dynamic3CommandExceptionType ERROR_NO_SUCH_MODIFIER = new Dynamic3CommandExceptionType(
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(object, object2, object3) -> Component.translatableEscape("commands.attribute.failed.no_modifier", object2, object, object3)
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);
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private static final Dynamic3CommandExceptionType ERROR_MODIFIER_ALREADY_PRESENT = new Dynamic3CommandExceptionType(
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(object, object2, object3) -> Component.translatableEscape("commands.attribute.failed.modifier_already_present", object3, object2, object)
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);
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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("attribute")
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.requires(Commands.hasPermission(2))
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.then(
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Commands.argument("target", EntityArgument.entity())
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.then(
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Commands.argument("attribute", ResourceArgument.resource(context, Registries.ATTRIBUTE))
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.then(
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Commands.literal("get")
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.executes(
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commandContext -> getAttributeValue(
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commandContext.getSource(), EntityArgument.getEntity(commandContext, "target"), ResourceArgument.getAttribute(commandContext, "attribute"), 1.0
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)
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)
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.then(
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Commands.argument("scale", DoubleArgumentType.doubleArg())
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.executes(
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commandContext -> getAttributeValue(
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commandContext.getSource(),
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EntityArgument.getEntity(commandContext, "target"),
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ResourceArgument.getAttribute(commandContext, "attribute"),
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DoubleArgumentType.getDouble(commandContext, "scale")
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)
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)
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)
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)
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.then(
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Commands.literal("base")
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.then(
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Commands.literal("set")
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.then(
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Commands.argument("value", DoubleArgumentType.doubleArg())
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.executes(
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commandContext -> setAttributeBase(
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commandContext.getSource(),
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EntityArgument.getEntity(commandContext, "target"),
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ResourceArgument.getAttribute(commandContext, "attribute"),
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DoubleArgumentType.getDouble(commandContext, "value")
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)
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)
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)
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)
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.then(
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Commands.literal("get")
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.executes(
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commandContext -> getAttributeBase(
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commandContext.getSource(), EntityArgument.getEntity(commandContext, "target"), ResourceArgument.getAttribute(commandContext, "attribute"), 1.0
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)
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)
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.then(
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Commands.argument("scale", DoubleArgumentType.doubleArg())
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.executes(
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commandContext -> getAttributeBase(
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commandContext.getSource(),
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EntityArgument.getEntity(commandContext, "target"),
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ResourceArgument.getAttribute(commandContext, "attribute"),
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DoubleArgumentType.getDouble(commandContext, "scale")
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)
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)
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)
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)
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.then(
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Commands.literal("reset")
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.executes(
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commandContext -> resetAttributeBase(
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commandContext.getSource(), EntityArgument.getEntity(commandContext, "target"), ResourceArgument.getAttribute(commandContext, "attribute")
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)
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)
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)
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)
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.then(
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Commands.literal("modifier")
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.then(
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Commands.literal("add")
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.then(
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Commands.argument("id", ResourceLocationArgument.id())
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.then(
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Commands.argument("value", DoubleArgumentType.doubleArg())
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.then(
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Commands.literal("add_value")
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.executes(
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commandContext -> addModifier(
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commandContext.getSource(),
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EntityArgument.getEntity(commandContext, "target"),
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ResourceArgument.getAttribute(commandContext, "attribute"),
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ResourceLocationArgument.getId(commandContext, "id"),
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DoubleArgumentType.getDouble(commandContext, "value"),
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AttributeModifier.Operation.ADD_VALUE
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)
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)
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)
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.then(
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Commands.literal("add_multiplied_base")
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.executes(
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commandContext -> addModifier(
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commandContext.getSource(),
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EntityArgument.getEntity(commandContext, "target"),
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ResourceArgument.getAttribute(commandContext, "attribute"),
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ResourceLocationArgument.getId(commandContext, "id"),
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DoubleArgumentType.getDouble(commandContext, "value"),
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AttributeModifier.Operation.ADD_MULTIPLIED_BASE
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)
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)
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)
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.then(
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Commands.literal("add_multiplied_total")
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.executes(
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commandContext -> addModifier(
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commandContext.getSource(),
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EntityArgument.getEntity(commandContext, "target"),
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ResourceArgument.getAttribute(commandContext, "attribute"),
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ResourceLocationArgument.getId(commandContext, "id"),
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DoubleArgumentType.getDouble(commandContext, "value"),
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AttributeModifier.Operation.ADD_MULTIPLIED_TOTAL
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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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.then(
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Commands.literal("remove")
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.then(
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Commands.argument("id", ResourceLocationArgument.id())
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.suggests(
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(commandContext, suggestionsBuilder) -> SharedSuggestionProvider.suggestResource(
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getAttributeModifiers(EntityArgument.getEntity(commandContext, "target"), ResourceArgument.getAttribute(commandContext, "attribute")),
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suggestionsBuilder
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)
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)
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.executes(
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commandContext -> removeModifier(
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commandContext.getSource(),
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EntityArgument.getEntity(commandContext, "target"),
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ResourceArgument.getAttribute(commandContext, "attribute"),
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ResourceLocationArgument.getId(commandContext, "id")
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)
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)
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)
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)
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.then(
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Commands.literal("value")
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.then(
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Commands.literal("get")
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.then(
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Commands.argument("id", ResourceLocationArgument.id())
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.suggests(
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(commandContext, suggestionsBuilder) -> SharedSuggestionProvider.suggestResource(
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getAttributeModifiers(EntityArgument.getEntity(commandContext, "target"), ResourceArgument.getAttribute(commandContext, "attribute")),
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suggestionsBuilder
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)
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)
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.executes(
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commandContext -> getAttributeModifier(
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commandContext.getSource(),
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EntityArgument.getEntity(commandContext, "target"),
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ResourceArgument.getAttribute(commandContext, "attribute"),
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ResourceLocationArgument.getId(commandContext, "id"),
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1.0
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)
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)
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.then(
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Commands.argument("scale", DoubleArgumentType.doubleArg())
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.executes(
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commandContext -> getAttributeModifier(
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commandContext.getSource(),
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EntityArgument.getEntity(commandContext, "target"),
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ResourceArgument.getAttribute(commandContext, "attribute"),
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ResourceLocationArgument.getId(commandContext, "id"),
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DoubleArgumentType.getDouble(commandContext, "scale")
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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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)
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)
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);
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}
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private static AttributeInstance getAttributeInstance(Entity entity, Holder<Attribute> attribute) throws CommandSyntaxException {
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AttributeInstance attributeInstance = getLivingEntity(entity).getAttributes().getInstance(attribute);
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if (attributeInstance == null) {
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throw ERROR_NO_SUCH_ATTRIBUTE.create(entity.getName(), getAttributeDescription(attribute));
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} else {
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return attributeInstance;
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}
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}
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private static LivingEntity getLivingEntity(Entity target) throws CommandSyntaxException {
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if (!(target instanceof LivingEntity)) {
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throw ERROR_NOT_LIVING_ENTITY.create(target.getName());
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} else {
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return (LivingEntity)target;
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}
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}
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private static LivingEntity getEntityWithAttribute(Entity entity, Holder<Attribute> attribute) throws CommandSyntaxException {
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LivingEntity livingEntity = getLivingEntity(entity);
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if (!livingEntity.getAttributes().hasAttribute(attribute)) {
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throw ERROR_NO_SUCH_ATTRIBUTE.create(entity.getName(), getAttributeDescription(attribute));
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} else {
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return livingEntity;
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}
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}
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private static int getAttributeValue(CommandSourceStack source, Entity entity, Holder<Attribute> attribute, double scale) throws CommandSyntaxException {
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LivingEntity livingEntity = getEntityWithAttribute(entity, attribute);
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double d = livingEntity.getAttributeValue(attribute);
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source.sendSuccess(() -> Component.translatable("commands.attribute.value.get.success", getAttributeDescription(attribute), entity.getName(), d), false);
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return (int)(d * scale);
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}
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private static int getAttributeBase(CommandSourceStack source, Entity entity, Holder<Attribute> attribute, double scale) throws CommandSyntaxException {
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LivingEntity livingEntity = getEntityWithAttribute(entity, attribute);
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double d = livingEntity.getAttributeBaseValue(attribute);
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source.sendSuccess(() -> Component.translatable("commands.attribute.base_value.get.success", getAttributeDescription(attribute), entity.getName(), d), false);
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return (int)(d * scale);
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}
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private static int getAttributeModifier(CommandSourceStack source, Entity entity, Holder<Attribute> attribute, ResourceLocation id, double scale) throws CommandSyntaxException {
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LivingEntity livingEntity = getEntityWithAttribute(entity, attribute);
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AttributeMap attributeMap = livingEntity.getAttributes();
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if (!attributeMap.hasModifier(attribute, id)) {
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throw ERROR_NO_SUCH_MODIFIER.create(entity.getName(), getAttributeDescription(attribute), id);
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} else {
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double d = attributeMap.getModifierValue(attribute, id);
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source.sendSuccess(
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() -> Component.translatable(
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"commands.attribute.modifier.value.get.success", Component.translationArg(id), getAttributeDescription(attribute), entity.getName(), d
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),
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false
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);
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return (int)(d * scale);
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}
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}
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private static Stream<ResourceLocation> getAttributeModifiers(Entity entity, Holder<Attribute> attribute) throws CommandSyntaxException {
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AttributeInstance attributeInstance = getAttributeInstance(entity, attribute);
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return attributeInstance.getModifiers().stream().map(AttributeModifier::id);
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}
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private static int setAttributeBase(CommandSourceStack source, Entity entity, Holder<Attribute> attribute, double value) throws CommandSyntaxException {
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getAttributeInstance(entity, attribute).setBaseValue(value);
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source.sendSuccess(
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() -> Component.translatable("commands.attribute.base_value.set.success", getAttributeDescription(attribute), entity.getName(), value), false
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);
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return 1;
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}
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private static int resetAttributeBase(CommandSourceStack source, Entity entity, Holder<Attribute> attribute) throws CommandSyntaxException {
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LivingEntity livingEntity = getLivingEntity(entity);
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if (!livingEntity.getAttributes().resetBaseValue(attribute)) {
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throw ERROR_NO_SUCH_ATTRIBUTE.create(entity.getName(), getAttributeDescription(attribute));
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} else {
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double d = livingEntity.getAttributeBaseValue(attribute);
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source.sendSuccess(
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() -> Component.translatable("commands.attribute.base_value.reset.success", getAttributeDescription(attribute), entity.getName(), d), false
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);
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return 1;
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}
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}
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private static int addModifier(
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CommandSourceStack source, Entity entity, Holder<Attribute> attribute, ResourceLocation id, double amount, AttributeModifier.Operation operation
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) throws CommandSyntaxException {
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AttributeInstance attributeInstance = getAttributeInstance(entity, attribute);
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AttributeModifier attributeModifier = new AttributeModifier(id, amount, operation);
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if (attributeInstance.hasModifier(id)) {
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throw ERROR_MODIFIER_ALREADY_PRESENT.create(entity.getName(), getAttributeDescription(attribute), id);
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} else {
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attributeInstance.addPermanentModifier(attributeModifier);
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source.sendSuccess(
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() -> Component.translatable("commands.attribute.modifier.add.success", Component.translationArg(id), getAttributeDescription(attribute), entity.getName()),
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false
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);
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return 1;
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}
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}
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private static int removeModifier(CommandSourceStack source, Entity entity, Holder<Attribute> attribute, ResourceLocation id) throws CommandSyntaxException {
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AttributeInstance attributeInstance = getAttributeInstance(entity, attribute);
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if (attributeInstance.removeModifier(id)) {
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source.sendSuccess(
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() -> Component.translatable(
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"commands.attribute.modifier.remove.success", Component.translationArg(id), getAttributeDescription(attribute), entity.getName()
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),
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false
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);
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return 1;
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} else {
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throw ERROR_NO_SUCH_MODIFIER.create(entity.getName(), getAttributeDescription(attribute), id);
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}
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}
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private static Component getAttributeDescription(Holder<Attribute> attribute) {
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return Component.translatable(attribute.value().getDescriptionId());
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}
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}
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