ForgePatch/src/main/java/net/minecraftforge/client/model/data/ModelDataMap.java

78 lines
2.2 KiB
Java

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