73 lines
2.0 KiB
Java
73 lines
2.0 KiB
Java
package com.github.dtschust.zork.objects;
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import com.github.dtschust.zork.ZorkTrigger;
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import com.github.dtschust.zork.types.ObjectCollector;
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import java.util.Collection;
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import java.util.HashSet;
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import java.util.Set;
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/* Container*/
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public class ZorkContainer extends ZorkObject implements ObjectCollector {
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private final Set<String> items;
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private boolean open;
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public ZorkContainer(final String name,
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final String description,
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final String status,
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final Collection<String> items,
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final Collection<String> accepts,
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final Collection<ZorkTrigger> triggers) {
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super(name, description, status, triggers);
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// If a container has an accepts attribute, then it is always open
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this.open = !accepts.isEmpty();
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this.items = new HashSet<>(items);
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}
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public String getContents() {
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if (this.items.isEmpty()) {
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return getName() + " is empty";
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} else {
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return getName() + " contains " + String.join(", ", items) + ".";
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}
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}
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public void addItem(final String item) {
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this.items.add(item);
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}
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public void removeItem(final String item) {
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this.items.remove(item);
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}
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public boolean containsItem(final String item) {
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return this.items.contains(item);
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}
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public boolean isOpen() {
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return open;
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}
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public void open() {
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open = true;
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}
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@Override
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public void addObject(final ZorkObject object) {
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if (!(object instanceof ZorkItem)) {
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throw new UnsupportedOperationException(
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"a container cannot store " + object.getClass().getSimpleName() + " objects");
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}
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addItem(object.getName());
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}
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@Override
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public void removeObject(final ZorkObject object) {
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if (!(object instanceof ZorkItem)) {
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return;
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}
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removeItem(object.getName());
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}
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}
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