com.badlogic.gdx.scenes.scene2d.actions.DelegateAction.java Source code

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Here is the source code for com.badlogic.gdx.scenes.scene2d.actions.DelegateAction.java

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/*******************************************************************************
 * Copyright 2011 See AUTHORS file.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

package com.badlogic.gdx.scenes.scene2d.actions;

import com.badlogic.gdx.scenes.scene2d.Action;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.utils.Pool;

/** Base class for an action that wraps another action.
 * @author Nathan Sweet */
abstract public class DelegateAction extends Action {
    protected Action action;

    /** Sets the wrapped action. */
    public void setAction(Action action) {
        this.action = action;
    }

    public Action getAction() {
        return action;
    }

    abstract protected boolean delegate(float delta);

    public final boolean act(float delta) {
        Pool pool = getPool();
        setPool(null); // Ensure this action can't be returned to the pool inside the delegate action.
        try {
            return delegate(delta);
        } finally {
            setPool(pool);
        }
    }

    public void restart() {
        if (action != null)
            action.restart();
    }

    public void reset() {
        super.reset();
        action = null;
    }

    public void setActor(Actor actor) {
        if (action != null)
            action.setActor(actor);
        super.setActor(actor);
    }

    public String toString() {
        return super.toString() + (action == null ? "" : "(" + action + ")");
    }
}