custom args WIP
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package carpet.script.command;
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import carpet.script.exception.InternalExpressionException;
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import carpet.script.value.ListValue;
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import carpet.script.value.NumericValue;
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import carpet.script.value.StringValue;
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import carpet.script.value.Value;
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import carpet.script.value.ValueConversions;
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import com.google.common.collect.Lists;
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import com.mojang.brigadier.arguments.ArgumentType;
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import com.mojang.brigadier.arguments.DoubleArgumentType;
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import com.mojang.brigadier.arguments.StringArgumentType;
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import com.mojang.brigadier.context.CommandContext;
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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 com.mojang.brigadier.suggestion.Suggestions;
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import com.mojang.brigadier.suggestion.SuggestionsBuilder;
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import net.minecraft.command.argument.BlockPosArgumentType;
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import net.minecraft.server.command.ServerCommandSource;
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import net.minecraft.text.LiteralText;
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import net.minecraft.util.math.BlockPos;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import java.util.Set;
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import java.util.concurrent.CompletableFuture;
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import java.util.function.Supplier;
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import java.util.stream.Collectors;
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public abstract class CommandArgument
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{
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private static final List<? extends CommandArgument> baseTypes = Lists.newArrayList(
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new WordArgument(), new PosArgument(), new FloatArgument()
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);
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public static final Map<String, CommandArgument> builtIns = baseTypes.stream().collect(Collectors.toMap(CommandArgument::getTypeSuffix, a -> a));
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private String suffix;
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private final Collection<String> examples;
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protected CommandArgument(
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String suffix,
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Collection<String> examples)
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{
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this.suffix = suffix;
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this.examples = examples;
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}
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public abstract ArgumentType<?> getArgument();
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public abstract Value getValueFromContext(CommandContext<ServerCommandSource> context, String param) throws CommandSyntaxException;
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public String getTypeSuffix()
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{
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return suffix;
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}
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public Collection<String> getExamples()
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{
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return examples;
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}
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public static CommandArgument buildFromConfig(String suffix, Map<String, Value> config)
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{
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if (!config.containsKey("type"))
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throw new InternalExpressionException("Custom types should at least specify the base type");
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String baseType = config.get("type").getString();
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if (!builtIns.containsKey(baseType))
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throw new InternalExpressionException("Unknown base type: "+baseType);
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CommandArgument variant = builtIns.get(baseType).builder().get();
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variant.configure(config);
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variant.suffix = suffix;
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return variant;
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};
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protected abstract void configure(Map<String, Value> config);
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protected CompletableFuture<Suggestions> suggest(
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CommandContext<ServerCommandSource> context,
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SuggestionsBuilder suggestionsBuilder
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)
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{
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String prefix = suggestionsBuilder.getRemaining().toLowerCase(Locale.ROOT);
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suggestFor(prefix).forEach(suggestionsBuilder::suggest);
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return suggestionsBuilder.buildFuture();
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}
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protected List<String> suggestFor(String prefix)
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{
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return getOptions().stream().filter(s -> optionMatchesPrefix(prefix, s)).collect(Collectors.toList());
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}
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protected Collection<String> getOptions()
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{
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return Collections.emptyList();
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}
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protected boolean optionMatchesPrefix(String prefix, String option)
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{
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for(int i = 0; !option.startsWith(prefix, i); ++i)
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{
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i = option.indexOf('_', i);
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if (i < 0) return false;
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}
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return true;
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}
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protected abstract Supplier<CommandArgument> builder();
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public static class WordArgument extends CommandArgument
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{
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Set<String> validOptions = Collections.emptySet();
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boolean caseSensitive = false;
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private WordArgument()
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{
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super("string", StringArgumentType.StringType.SINGLE_WORD.getExamples());
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}
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@Override
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public ArgumentType<?> getArgument()
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{
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return StringArgumentType.word();
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}
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@Override
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public Value getValueFromContext(CommandContext<ServerCommandSource> context, String param) throws CommandSyntaxException
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{
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String choseValue = StringArgumentType.getString(context, param);
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if (!caseSensitive) choseValue = choseValue.toLowerCase(Locale.ROOT);
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if (!validOptions.isEmpty() && !validOptions.contains(choseValue))
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{
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throw new SimpleCommandExceptionType(new LiteralText("")).create();
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}
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return StringValue.of(choseValue);
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}
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@Override
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protected void configure(Map<String, Value> config)
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{
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caseSensitive = config.getOrDefault("case_sensitive", Value.FALSE).getBoolean();
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if (config.containsKey("options"))
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{
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Value optionsValue = config.get("options");
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if (!(optionsValue instanceof ListValue)) throw new InternalExpressionException("Custom sting type requires options passed as a list");
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validOptions = ((ListValue) optionsValue).getItems().stream()
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.map(v -> caseSensitive?v.getString():v.getString().toLowerCase(Locale.ROOT))
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.collect(Collectors.toSet());
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}
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}
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@Override
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protected Collection<String> getOptions() { return validOptions; }
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@Override
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protected Supplier<CommandArgument> builder() { return WordArgument::new; }
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}
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public static class PosArgument extends CommandArgument
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{
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private boolean mustBeLoaded = false;
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private PosArgument()
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{
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super("pos", BlockPosArgumentType.blockPos().getExamples());
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}
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@Override
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public ArgumentType<?> getArgument()
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{
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return BlockPosArgumentType.blockPos();
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}
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@Override
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public Value getValueFromContext(CommandContext<ServerCommandSource> context, String param) throws CommandSyntaxException
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{
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BlockPos pos = mustBeLoaded
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? BlockPosArgumentType.getLoadedBlockPos(context, param)
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: BlockPosArgumentType.getBlockPos(context, param);
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return ValueConversions.fromPos(pos);
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}
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@Override
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protected void configure(Map<String, Value> config)
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{
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mustBeLoaded = config.getOrDefault("loaded", Value.FALSE).getBoolean();
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}
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@Override
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protected Supplier<CommandArgument> builder()
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{
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return PosArgument::new;
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}
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}
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public static class FloatArgument extends CommandArgument
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{
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private Double min = null;
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private Double max = null;
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private FloatArgument()
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{
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super("float", DoubleArgumentType.doubleArg().getExamples());
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}
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@Override
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public ArgumentType<?> getArgument()
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{
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if (min != null)
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{
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if (max != null)
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{
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return DoubleArgumentType.doubleArg(min, max);
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}
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return DoubleArgumentType.doubleArg(min);
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}
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return DoubleArgumentType.doubleArg();
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}
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@Override
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public Value getValueFromContext(CommandContext<ServerCommandSource> context, String param) throws CommandSyntaxException
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{
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return new NumericValue(DoubleArgumentType.getDouble(context, param));
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}
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@Override
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protected void configure(Map<String, Value> config)
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{
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if (config.containsKey("min"))
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{
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min = NumericValue.asNumber(config.get("min"), "min").getDouble();
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}
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if (config.containsKey("max"))
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{
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max = NumericValue.asNumber(config.get("max"), "max").getDouble();
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}
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if (max != null && min == null) throw new InternalExpressionException("Double types cannot be only upper-bounded");
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}
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@Override
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protected Supplier<CommandArgument> builder()
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{
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return FloatArgument::new;
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}
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}
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}
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