78 lines
2.2 KiB
Java
78 lines
2.2 KiB
Java
/*
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* Minecraft Forge
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* Copyright (c) 2016-2019.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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package net.minecraftforge.client.model.data;
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import java.util.IdentityHashMap;
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import java.util.Map;
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import com.google.common.base.Preconditions;
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public class ModelDataMap implements IModelData
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{
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private final Map<ModelProperty<?>, Object> backingMap;
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private ModelDataMap(Map<ModelProperty<?>, Object> map)
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{
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this.backingMap = new IdentityHashMap<>(map);
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}
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@Override
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public boolean hasProperty(ModelProperty<?> prop)
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{
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return backingMap.containsKey(prop);
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}
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@SuppressWarnings("unchecked")
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@Override
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public <T> T getData(ModelProperty<T> prop)
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{
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return (T) backingMap.get(prop);
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}
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@SuppressWarnings("unchecked")
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@Override
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public <T> T setData(ModelProperty<T> prop, T data)
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{
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Preconditions.checkArgument(prop.test(data), "Value is invalid for this property");
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return (T) backingMap.put(prop, data);
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}
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public static class Builder
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{
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private final Map<ModelProperty<?>, Object> defaults = new IdentityHashMap<>();
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public Builder withProperty(ModelProperty<?> prop)
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{
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return withInitial(prop, null);
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}
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public <T> Builder withInitial(ModelProperty<T> prop, T data)
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{
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this.defaults.put(prop, data);
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return this;
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}
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public ModelDataMap build()
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{
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return new ModelDataMap(defaults);
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}
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}
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}
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