IAPDemo/Libraries/cocos2d/cocos/editor-support/spine/Pool.h

/******************************************************************************
 * Spine Runtimes License Agreement
 * Last updated January 1, 2020. Replaces all prior versions.
 *
 * Copyright (c) 2013-2020, Esoteric Software LLC
 *
 * Integration of the Spine Runtimes into software or otherwise creating
 * derivative works of the Spine Runtimes is permitted under the terms and
 * conditions of Section 2 of the Spine Editor License Agreement:
 * http://esotericsoftware.com/spine-editor-license
 *
 * Otherwise, it is permitted to integrate the Spine Runtimes into software
 * or otherwise create derivative works of the Spine Runtimes (collectively,
 * "Products"), provided that each user of the Products must obtain their own
 * Spine Editor license and redistribution of the Products in any form must
 * include this license and copyright notice.
 *
 * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
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 *****************************************************************************/

#ifndef Spine_Pool_h
#define Spine_Pool_h

#include <spine/extension.h>
#include <spine/Vector.h>
#include <spine/ContainerUtil.h>
#include <spine/SpineObject.h>

namespace spine {
template<typename T>
class SP_API Pool : public SpineObject {
public:
	Pool() {
	}

	~Pool() {
		ContainerUtil::cleanUpVectorOfPointers(_objects);
	}

	T *obtain() {
		if (_objects.size() > 0) {
			T **object = &_objects[_objects.size() - 1];
			T *ret = *object;
			_objects.removeAt(_objects.size() - 1);

			return ret;
		} else {
			T *ret = new(__FILE__, __LINE__) T();

			return ret;
		}
	}

	void free(T *object) {
		if (!_objects.contains(object)) {
			_objects.add(object);
		}
	}

private:
	Vector<T *> _objects;
};
}

#endif /* Spine_Pool_h */