forked from GeyserMC/Geyser
100 lines
4.4 KiB
Java
100 lines
4.4 KiB
Java
/*
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* Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @author GeyserMC
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* @link https://github.com/GeyserMC/Geyser
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*/
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package org.geysermc.connector.utils;
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import com.github.steveice10.mc.protocol.data.game.entity.attribute.AttributeModifier;
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import com.github.steveice10.mc.protocol.data.game.entity.attribute.ModifierOperation;
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import org.geysermc.connector.entity.attribute.Attribute;
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import org.geysermc.connector.entity.attribute.AttributeType;
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public class AttributeUtils {
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public static com.github.steveice10.mc.protocol.data.game.entity.attribute.Attribute getJavaAttribute(Attribute attribute) {
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if (!attribute.getType().isJavaAttribute())
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return null;
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com.github.steveice10.mc.protocol.data.game.entity.attribute.AttributeType type = null;
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try {
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type = com.github.steveice10.mc.protocol.data.game.entity.attribute.AttributeType.valueOf("GENERIC_" + attribute.getType().name());
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} catch (Exception ex) {
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// Catch and loop since attributes can semi-overlap
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for (AttributeType attributeType : AttributeType.values()) {
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if (!attributeType.isJavaAttribute())
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continue;
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if (!attributeType.getJavaIdentifier().equals(attribute.getType().getJavaIdentifier()))
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continue;
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try {
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type = com.github.steveice10.mc.protocol.data.game.entity.attribute.AttributeType.valueOf("GENERIC_" + attributeType.name());
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} catch (Exception e) {
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continue;
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}
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}
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}
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if (type == null)
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return null;
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return new com.github.steveice10.mc.protocol.data.game.entity.attribute.Attribute(type, attribute.getValue());
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}
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public static com.nukkitx.protocol.bedrock.data.Attribute getBedrockAttribute(Attribute attribute) {
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AttributeType type = attribute.getType();
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if (!type.isBedrockAttribute())
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return null;
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return new com.nukkitx.protocol.bedrock.data.Attribute(type.getBedrockIdentifier(), attribute.getMinimum(), attribute.getMaximum(), attribute.getValue(), attribute.getDefaultValue());
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}
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/**
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* Retrieve the base attribute value with all modifiers applied.
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* https://minecraft.gamepedia.com/Attribute#Modifiers
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* @param attribute The attribute to calculate the total value.
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* @return The finished attribute with all modifiers applied.
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*/
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public static double calculateValue(com.github.steveice10.mc.protocol.data.game.entity.attribute.Attribute attribute) {
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double base = attribute.getValue();
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for (AttributeModifier modifier : attribute.getModifiers()) {
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if (modifier.getOperation() == ModifierOperation.ADD) {
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base += modifier.getAmount();
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}
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}
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double value = base;
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for (AttributeModifier modifier : attribute.getModifiers()) {
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if (modifier.getOperation() == ModifierOperation.ADD_MULTIPLIED) {
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value += base * modifier.getAmount();
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}
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}
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for (AttributeModifier modifier : attribute.getModifiers()) {
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if (modifier.getOperation() == ModifierOperation.MULTIPLY) {
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value *= 1.0D + modifier.getAmount();
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}
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}
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return value;
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}
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}
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