2012-06-08 13:55:28 +08:00
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/*
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* Copyright (c) 2008 Radu Gruian
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* Copyright (c) 2011 Vit Valentin
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2014-01-07 11:25:07 +08:00
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* Copyright (c) 2012 cocos2d-x.org
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2018-01-29 16:25:32 +08:00
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* Copyright (c) 2013-2016 Chukong Technologies Inc.
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* Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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2012-06-08 13:55:28 +08:00
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*
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2021-12-25 10:04:45 +08:00
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* Original code by Radu Gruian:
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* http://www.codeproject.com/Articles/30838/Overhauser-Catmull-Rom-Splines-for-Camera-Animatio.So
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2012-06-08 13:55:28 +08:00
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*
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* Adapted to cocos2d-x by Vit Valentin
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*
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* Adapted from cocos2d-x to cocos2d-iphone by Ricardo Quesada
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*/
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2014-04-30 08:37:36 +08:00
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#include "base/ccMacros.h"
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2014-04-27 01:11:22 +08:00
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#include "2d/CCActionCatmullRom.h"
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2014-08-26 18:19:28 +08:00
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#include "2d/CCNode.h"
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2012-06-08 13:55:28 +08:00
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2017-07-04 14:31:29 +08:00
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#include <iterator>
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2012-06-11 18:25:57 +08:00
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using namespace std;
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2022-07-11 17:50:21 +08:00
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NS_AX_BEGIN;
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2012-06-08 13:55:28 +08:00
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/*
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2013-06-20 14:13:12 +08:00
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* Implementation of PointArray
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2012-06-08 13:55:28 +08:00
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*/
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2012-06-14 15:13:16 +08:00
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2013-12-27 15:06:16 +08:00
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PointArray* PointArray::create(ssize_t capacity)
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2012-06-08 13:55:28 +08:00
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{
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2021-12-08 00:11:53 +08:00
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PointArray* pointArray = new PointArray();
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if (pointArray->initWithCapacity(capacity))
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2012-06-08 13:55:28 +08:00
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{
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2016-04-08 13:40:36 +08:00
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pointArray->autorelease();
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return pointArray;
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2012-06-08 13:55:28 +08:00
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}
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2012-06-14 15:13:16 +08:00
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2016-04-08 13:40:36 +08:00
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delete pointArray;
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return nullptr;
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2012-06-08 13:55:28 +08:00
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}
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2013-12-27 15:06:16 +08:00
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bool PointArray::initWithCapacity(ssize_t capacity)
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2012-06-08 13:55:28 +08:00
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{
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2017-07-04 14:31:29 +08:00
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_controlPoints.reserve(capacity);
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2021-12-25 10:04:45 +08:00
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2012-06-08 13:55:28 +08:00
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return true;
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}
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2013-06-22 06:13:52 +08:00
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PointArray* PointArray::clone() const
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2012-06-08 13:55:28 +08:00
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{
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2017-07-04 14:31:29 +08:00
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vector<Vec2> newArray = _controlPoints;
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2021-12-25 10:04:45 +08:00
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PointArray* points = new PointArray();
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2013-01-23 14:38:46 +08:00
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points->initWithCapacity(10);
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2017-07-04 14:31:29 +08:00
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points->setControlPoints(std::move(newArray));
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2013-06-22 06:13:52 +08:00
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points->autorelease();
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2012-06-08 13:55:28 +08:00
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return points;
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}
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2013-06-20 14:13:12 +08:00
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PointArray::~PointArray()
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2012-06-08 13:55:28 +08:00
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{
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2013-08-22 11:05:06 +08:00
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CCLOGINFO("deallocing PointArray: %p", this);
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2012-06-08 13:55:28 +08:00
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}
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2017-07-04 14:31:29 +08:00
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PointArray::PointArray() {}
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2012-06-08 13:55:28 +08:00
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2017-07-04 14:31:29 +08:00
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const std::vector<Vec2>& PointArray::getControlPoints() const
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2012-06-08 13:55:28 +08:00
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{
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2013-06-15 14:03:30 +08:00
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return _controlPoints;
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2013-01-14 14:45:16 +08:00
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}
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2017-07-04 14:31:29 +08:00
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void PointArray::setControlPoints(vector<Vec2> controlPoints)
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2013-01-14 14:45:16 +08:00
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{
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2017-07-04 14:31:29 +08:00
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_controlPoints = std::move(controlPoints);
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2013-01-14 14:45:16 +08:00
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}
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2016-05-17 12:17:56 +08:00
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void PointArray::addControlPoint(const Vec2& controlPoint)
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2021-12-25 10:04:45 +08:00
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{
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2017-07-04 14:31:29 +08:00
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_controlPoints.push_back(controlPoint);
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2012-06-08 13:55:28 +08:00
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}
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2017-07-04 14:31:29 +08:00
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void PointArray::insertControlPoint(const Vec2& controlPoint, ssize_t index)
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2012-06-08 13:55:28 +08:00
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{
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2017-07-04 14:31:29 +08:00
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_controlPoints.insert(std::next(_controlPoints.begin(), index), controlPoint);
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2012-06-08 13:55:28 +08:00
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}
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2017-07-04 14:31:29 +08:00
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const Vec2& PointArray::getControlPointAtIndex(ssize_t index) const
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2012-06-08 13:55:28 +08:00
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{
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2021-12-25 10:04:45 +08:00
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index = MIN(static_cast<ssize_t>(_controlPoints.size()) - 1, MAX(index, 0));
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2017-07-04 14:31:29 +08:00
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return _controlPoints.at(index);
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2012-06-08 13:55:28 +08:00
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}
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2017-07-04 14:31:29 +08:00
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void PointArray::replaceControlPoint(const Vec2& controlPoint, ssize_t index)
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2012-06-08 13:55:28 +08:00
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{
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2017-07-04 14:31:29 +08:00
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_controlPoints.at(index) = controlPoint;
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2012-06-08 13:55:28 +08:00
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}
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2013-12-27 15:06:16 +08:00
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void PointArray::removeControlPointAtIndex(ssize_t index)
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2012-06-08 13:55:28 +08:00
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{
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2017-07-04 14:31:29 +08:00
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vector<Vec2>::iterator iter = std::next(_controlPoints.begin(), index);
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_controlPoints.erase(iter);
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2012-06-08 13:55:28 +08:00
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}
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2013-12-27 15:06:16 +08:00
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ssize_t PointArray::count() const
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2012-06-08 13:55:28 +08:00
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{
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2017-07-04 14:31:29 +08:00
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return _controlPoints.size();
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2012-06-08 13:55:28 +08:00
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}
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2013-06-22 06:13:52 +08:00
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PointArray* PointArray::reverse() const
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2012-06-08 13:55:28 +08:00
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{
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2017-07-04 14:31:29 +08:00
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vector<Vec2> newArray;
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newArray.reserve(_controlPoints.size());
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for (auto iter = _controlPoints.rbegin(), iterRend = _controlPoints.rend(); iter != iterRend; ++iter)
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2012-06-08 13:55:28 +08:00
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{
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2017-07-04 14:31:29 +08:00
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newArray.push_back(*iter);
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2012-06-08 13:55:28 +08:00
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}
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2021-12-25 10:04:45 +08:00
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PointArray* config = PointArray::create(0);
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2017-07-04 14:31:29 +08:00
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config->setControlPoints(std::move(newArray));
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2021-12-25 10:04:45 +08:00
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2012-06-08 13:55:28 +08:00
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return config;
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}
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2013-06-20 14:13:12 +08:00
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void PointArray::reverseInline()
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2012-06-08 13:55:28 +08:00
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{
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2017-07-04 14:31:29 +08:00
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const size_t l = _controlPoints.size();
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2021-12-25 10:04:45 +08:00
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Vec2* p1 = nullptr;
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Vec2* p2 = nullptr;
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2013-12-27 15:06:16 +08:00
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float x, y;
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2021-12-25 10:04:45 +08:00
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for (size_t i = 0; i < l / 2; ++i)
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2012-06-08 13:55:28 +08:00
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{
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2017-07-04 14:31:29 +08:00
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p1 = &_controlPoints.at(i);
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2021-12-25 10:04:45 +08:00
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p2 = &_controlPoints.at(l - i - 1);
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2013-01-14 14:45:16 +08:00
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x = p1->x;
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y = p1->y;
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2021-12-25 10:04:45 +08:00
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2013-01-14 14:45:16 +08:00
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p1->x = p2->x;
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p1->y = p2->y;
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2021-12-25 10:04:45 +08:00
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2013-01-14 14:45:16 +08:00
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p2->x = x;
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p2->y = y;
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2012-06-08 13:55:28 +08:00
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}
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}
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// CatmullRom Spline formula:
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2021-12-25 10:04:45 +08:00
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Vec2 ccCardinalSplineAt(const Vec2& p0, const Vec2& p1, const Vec2& p2, const Vec2& p3, float tension, float t)
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2012-06-08 13:55:28 +08:00
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{
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float t2 = t * t;
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float t3 = t2 * t;
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2021-12-25 10:04:45 +08:00
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2015-01-08 10:22:45 +08:00
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/*
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2021-12-25 10:04:45 +08:00
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* Formula: s(-ttt + 2tt - t)P1 + s(-ttt + tt)P2 + (2ttt - 3tt + 1)P2 + s(ttt - 2tt + t)P3 + (-2ttt + 3tt)P3 + s(ttt
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* - tt)P4
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2015-01-08 10:22:45 +08:00
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*/
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2012-06-08 13:55:28 +08:00
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float s = (1 - tension) / 2;
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2016-04-08 13:40:36 +08:00
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2021-12-25 10:04:45 +08:00
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float b1 = s * ((-t3 + (2 * t2)) - t); // s(-t3 + 2 t2 - t)P1
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float b2 = s * (-t3 + t2) + (2 * t3 - 3 * t2 + 1); // s(-t3 + t2)P2 + (2 t3 - 3 t2 + 1)P2
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float b3 = s * (t3 - 2 * t2 + t) + (-2 * t3 + 3 * t2); // s(t3 - 2 t2 + t)P3 + (-2 t3 + 3 t2)P3
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float b4 = s * (t3 - t2); // s(t3 - t2)P4
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float x = (p0.x * b1 + p1.x * b2 + p2.x * b3 + p3.x * b4);
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float y = (p0.y * b1 + p1.y * b2 + p2.y * b3 + p3.y * b4);
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2016-04-08 13:40:36 +08:00
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2021-12-25 10:04:45 +08:00
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return Vec2(x, y);
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2012-06-08 13:55:28 +08:00
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}
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2013-06-20 14:13:12 +08:00
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/* Implementation of CardinalSplineTo
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2012-06-08 13:55:28 +08:00
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*/
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2012-06-14 15:13:16 +08:00
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2021-12-25 10:04:45 +08:00
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CardinalSplineTo* CardinalSplineTo::create(float duration, PointArray* points, float tension)
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2012-06-08 13:55:28 +08:00
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{
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2021-12-25 10:04:45 +08:00
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CardinalSplineTo* ret = new CardinalSplineTo();
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2021-12-08 00:11:53 +08:00
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if (ret->initWithDuration(duration, points, tension))
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2012-06-08 13:55:28 +08:00
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{
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2021-12-08 00:11:53 +08:00
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ret->autorelease();
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}
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2021-12-25 10:04:45 +08:00
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else
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2021-12-08 00:11:53 +08:00
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{
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2022-07-15 19:17:01 +08:00
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AX_SAFE_DELETE(ret);
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2012-06-08 13:55:28 +08:00
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}
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2012-06-14 15:13:16 +08:00
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2012-06-08 13:55:28 +08:00
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return ret;
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}
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2021-12-25 10:04:45 +08:00
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bool CardinalSplineTo::initWithDuration(float duration, PointArray* points, float tension)
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2012-06-08 13:55:28 +08:00
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{
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2013-07-20 13:01:27 +08:00
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CCASSERT(points->count() > 0, "Invalid configuration. It must at least have one control point");
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2012-06-08 13:55:28 +08:00
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2013-06-20 14:13:12 +08:00
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if (ActionInterval::initWithDuration(duration))
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2012-06-08 13:55:28 +08:00
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{
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this->setPoints(points);
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2013-06-15 14:03:30 +08:00
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this->_tension = tension;
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2021-12-25 10:04:45 +08:00
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2012-06-08 13:55:28 +08:00
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return true;
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}
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2021-12-25 10:04:45 +08:00
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2012-06-08 13:55:28 +08:00
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return false;
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}
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2013-06-20 14:13:12 +08:00
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CardinalSplineTo::~CardinalSplineTo()
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2012-06-08 13:55:28 +08:00
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{
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2022-07-15 19:17:01 +08:00
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AX_SAFE_RELEASE_NULL(_points);
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2012-06-08 13:55:28 +08:00
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}
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2021-12-25 10:04:45 +08:00
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CardinalSplineTo::CardinalSplineTo() : _points(nullptr), _deltaT(0.f), _tension(0.f) {}
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2012-06-08 13:55:28 +08:00
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2021-12-25 10:04:45 +08:00
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void CardinalSplineTo::startWithTarget(Node* target)
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2012-06-08 13:55:28 +08:00
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{
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2013-07-18 07:56:19 +08:00
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ActionInterval::startWithTarget(target);
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2016-04-08 13:40:36 +08:00
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2021-12-25 10:04:45 +08:00
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// _deltaT = (float) 1 / _points->count();
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2012-11-14 18:05:15 +08:00
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// Issue #1441
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2021-12-25 10:04:45 +08:00
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_deltaT = (float)1 / (_points->count() - 1);
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2012-12-26 18:59:31 +08:00
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2013-07-18 07:56:19 +08:00
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_previousPosition = target->getPosition();
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2015-04-20 01:40:52 +08:00
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_accumulatedDiff.setZero();
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2012-06-08 13:55:28 +08:00
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}
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2013-06-20 14:13:12 +08:00
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CardinalSplineTo* CardinalSplineTo::clone() const
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2013-06-14 08:25:14 +08:00
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{
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2015-01-08 10:22:45 +08:00
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// no copy constructor
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2021-12-08 00:11:53 +08:00
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auto a = new CardinalSplineTo();
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2015-01-08 10:22:45 +08:00
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a->initWithDuration(this->_duration, this->_points->clone(), this->_tension);
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a->autorelease();
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return a;
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2013-06-14 08:25:14 +08:00
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}
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2013-06-20 14:13:12 +08:00
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void CardinalSplineTo::update(float time)
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2012-06-08 13:55:28 +08:00
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{
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2013-12-28 14:34:52 +08:00
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ssize_t p;
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2012-06-08 13:55:28 +08:00
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float lt;
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2016-04-08 13:40:36 +08:00
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2015-01-08 10:22:45 +08:00
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// eg.
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// p..p..p..p..p..p..p
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|
|
// 1..2..3..4..5..6..7
|
|
|
|
// want p to be 1, 2, 3, 4, 5, 6
|
2012-06-08 13:55:28 +08:00
|
|
|
if (time == 1)
|
|
|
|
{
|
2021-12-25 10:04:45 +08:00
|
|
|
p = _points->count() - 1;
|
2012-06-08 13:55:28 +08:00
|
|
|
lt = 1;
|
|
|
|
}
|
2021-12-25 10:04:45 +08:00
|
|
|
else
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2021-12-25 10:04:45 +08:00
|
|
|
p = (ssize_t)(time / _deltaT);
|
2019-09-25 14:32:26 +08:00
|
|
|
lt = (time - _deltaT * p) / _deltaT;
|
2012-06-08 13:55:28 +08:00
|
|
|
}
|
2021-12-25 10:04:45 +08:00
|
|
|
|
2015-01-08 10:22:45 +08:00
|
|
|
// Interpolate
|
2021-12-25 10:04:45 +08:00
|
|
|
Vec2 pp0 = _points->getControlPointAtIndex(p - 1);
|
|
|
|
Vec2 pp1 = _points->getControlPointAtIndex(p + 0);
|
|
|
|
Vec2 pp2 = _points->getControlPointAtIndex(p + 1);
|
|
|
|
Vec2 pp3 = _points->getControlPointAtIndex(p + 2);
|
2016-04-08 13:40:36 +08:00
|
|
|
|
2014-05-15 01:07:09 +08:00
|
|
|
Vec2 newPos = ccCardinalSplineAt(pp0, pp1, pp2, pp3, _tension, lt);
|
2016-04-08 13:40:36 +08:00
|
|
|
|
2022-07-15 19:17:01 +08:00
|
|
|
#if AX_ENABLE_STACKABLE_ACTIONS
|
2013-01-14 14:45:16 +08:00
|
|
|
// Support for stacked actions
|
2021-12-25 10:04:45 +08:00
|
|
|
Node* node = _target;
|
|
|
|
Vec2 diff = node->getPosition() - _previousPosition;
|
|
|
|
if (diff.x != 0 || diff.y != 0)
|
2016-04-08 13:40:36 +08:00
|
|
|
{
|
2013-07-11 16:38:58 +08:00
|
|
|
_accumulatedDiff = _accumulatedDiff + diff;
|
2021-12-25 10:04:45 +08:00
|
|
|
newPos = newPos + _accumulatedDiff;
|
2012-12-26 18:59:31 +08:00
|
|
|
}
|
2013-02-27 09:38:30 +08:00
|
|
|
#endif
|
2021-12-25 10:04:45 +08:00
|
|
|
|
2012-06-08 13:55:28 +08:00
|
|
|
this->updatePosition(newPos);
|
|
|
|
}
|
|
|
|
|
2021-12-25 10:04:45 +08:00
|
|
|
void CardinalSplineTo::updatePosition(const Vec2& newPos)
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2013-06-15 14:03:30 +08:00
|
|
|
_target->setPosition(newPos);
|
|
|
|
_previousPosition = newPos;
|
2012-06-08 13:55:28 +08:00
|
|
|
}
|
|
|
|
|
2013-06-20 14:13:12 +08:00
|
|
|
CardinalSplineTo* CardinalSplineTo::reverse() const
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2021-12-25 10:04:45 +08:00
|
|
|
PointArray* pReverse = _points->reverse();
|
|
|
|
|
2013-06-20 14:13:12 +08:00
|
|
|
return CardinalSplineTo::create(_duration, pReverse, _tension);
|
2012-06-08 13:55:28 +08:00
|
|
|
}
|
|
|
|
|
2013-06-20 14:13:12 +08:00
|
|
|
/* CardinalSplineBy
|
2012-06-08 13:55:28 +08:00
|
|
|
*/
|
|
|
|
|
2021-12-25 10:04:45 +08:00
|
|
|
CardinalSplineBy* CardinalSplineBy::create(float duration, PointArray* points, float tension)
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2021-12-25 10:04:45 +08:00
|
|
|
CardinalSplineBy* ret = new CardinalSplineBy();
|
2021-12-08 00:11:53 +08:00
|
|
|
if (ret->initWithDuration(duration, points, tension))
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2021-12-08 00:11:53 +08:00
|
|
|
ret->autorelease();
|
|
|
|
}
|
2021-12-25 10:04:45 +08:00
|
|
|
else
|
2021-12-08 00:11:53 +08:00
|
|
|
{
|
2022-07-15 19:17:01 +08:00
|
|
|
AX_SAFE_DELETE(ret);
|
2012-06-08 13:55:28 +08:00
|
|
|
}
|
2012-06-14 15:13:16 +08:00
|
|
|
|
2012-06-08 13:55:28 +08:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2021-12-25 10:04:45 +08:00
|
|
|
CardinalSplineBy::CardinalSplineBy() : _startPosition(0, 0) {}
|
2012-06-08 13:55:28 +08:00
|
|
|
|
2021-12-25 10:04:45 +08:00
|
|
|
void CardinalSplineBy::updatePosition(const Vec2& newPos)
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2014-05-15 01:07:09 +08:00
|
|
|
Vec2 p = newPos + _startPosition;
|
2013-06-15 14:03:30 +08:00
|
|
|
_target->setPosition(p);
|
|
|
|
_previousPosition = p;
|
2012-06-08 13:55:28 +08:00
|
|
|
}
|
|
|
|
|
2013-06-20 14:13:12 +08:00
|
|
|
CardinalSplineBy* CardinalSplineBy::reverse() const
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2021-12-25 10:04:45 +08:00
|
|
|
PointArray* copyConfig = _points->clone();
|
2016-04-08 13:40:36 +08:00
|
|
|
|
2015-01-08 10:22:45 +08:00
|
|
|
//
|
|
|
|
// convert "absolutes" to "diffs"
|
|
|
|
//
|
2014-05-15 01:07:09 +08:00
|
|
|
Vec2 p = copyConfig->getControlPointAtIndex(0);
|
2013-12-27 15:06:16 +08:00
|
|
|
for (ssize_t i = 1; i < copyConfig->count(); ++i)
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2014-05-15 01:07:09 +08:00
|
|
|
Vec2 current = copyConfig->getControlPointAtIndex(i);
|
2021-12-25 10:04:45 +08:00
|
|
|
Vec2 diff = current - p;
|
2012-06-08 13:55:28 +08:00
|
|
|
copyConfig->replaceControlPoint(diff, i);
|
2021-12-25 10:04:45 +08:00
|
|
|
|
2012-06-08 13:55:28 +08:00
|
|
|
p = current;
|
|
|
|
}
|
2016-04-08 13:40:36 +08:00
|
|
|
|
2015-01-08 10:22:45 +08:00
|
|
|
// convert to "diffs" to "reverse absolute"
|
2016-04-08 13:40:36 +08:00
|
|
|
|
2021-12-25 10:04:45 +08:00
|
|
|
PointArray* pReverse = copyConfig->reverse();
|
2016-04-08 13:40:36 +08:00
|
|
|
|
2015-01-08 10:22:45 +08:00
|
|
|
// 1st element (which should be 0,0) should be here too
|
2021-12-25 10:04:45 +08:00
|
|
|
|
|
|
|
p = pReverse->getControlPointAtIndex(pReverse->count() - 1);
|
|
|
|
pReverse->removeControlPointAtIndex(pReverse->count() - 1);
|
|
|
|
|
2013-07-11 16:38:58 +08:00
|
|
|
p = -p;
|
2012-06-14 15:13:16 +08:00
|
|
|
pReverse->insertControlPoint(p, 0);
|
2021-12-25 10:04:45 +08:00
|
|
|
|
2013-12-27 15:06:16 +08:00
|
|
|
for (ssize_t i = 1; i < pReverse->count(); ++i)
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2014-05-15 01:07:09 +08:00
|
|
|
Vec2 current = pReverse->getControlPointAtIndex(i);
|
2021-12-25 10:04:45 +08:00
|
|
|
current = -current;
|
|
|
|
Vec2 abs = current + p;
|
2012-06-14 15:13:16 +08:00
|
|
|
pReverse->replaceControlPoint(abs, i);
|
2021-12-25 10:04:45 +08:00
|
|
|
|
2012-06-08 13:55:28 +08:00
|
|
|
p = abs;
|
|
|
|
}
|
2016-04-08 13:40:36 +08:00
|
|
|
|
2013-06-20 14:13:12 +08:00
|
|
|
return CardinalSplineBy::create(_duration, pReverse, _tension);
|
2012-06-08 13:55:28 +08:00
|
|
|
}
|
|
|
|
|
2021-12-25 10:04:45 +08:00
|
|
|
void CardinalSplineBy::startWithTarget(Node* target)
|
|
|
|
{
|
2013-07-18 07:56:19 +08:00
|
|
|
CardinalSplineTo::startWithTarget(target);
|
|
|
|
_startPosition = target->getPosition();
|
2012-06-08 13:55:28 +08:00
|
|
|
}
|
|
|
|
|
2013-06-20 14:13:12 +08:00
|
|
|
CardinalSplineBy* CardinalSplineBy::clone() const
|
2013-06-14 08:25:14 +08:00
|
|
|
{
|
2015-01-08 10:22:45 +08:00
|
|
|
// no copy constructor
|
2021-12-08 00:11:53 +08:00
|
|
|
auto a = new CardinalSplineBy();
|
2015-01-08 10:22:45 +08:00
|
|
|
a->initWithDuration(this->_duration, this->_points->clone(), this->_tension);
|
|
|
|
a->autorelease();
|
|
|
|
return a;
|
2013-06-14 08:25:14 +08:00
|
|
|
}
|
|
|
|
|
2013-06-20 14:13:12 +08:00
|
|
|
/* CatmullRomTo
|
2012-06-08 13:55:28 +08:00
|
|
|
*/
|
2012-06-14 15:13:16 +08:00
|
|
|
|
2021-12-25 10:04:45 +08:00
|
|
|
CatmullRomTo* CatmullRomTo::create(float dt, PointArray* points)
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2021-12-25 10:04:45 +08:00
|
|
|
CatmullRomTo* ret = new CatmullRomTo();
|
2021-12-08 00:11:53 +08:00
|
|
|
if (ret->initWithDuration(dt, points))
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2021-12-08 00:11:53 +08:00
|
|
|
ret->autorelease();
|
|
|
|
}
|
2021-12-25 10:04:45 +08:00
|
|
|
else
|
2021-12-08 00:11:53 +08:00
|
|
|
{
|
2022-07-15 19:17:01 +08:00
|
|
|
AX_SAFE_DELETE(ret);
|
2012-06-08 13:55:28 +08:00
|
|
|
}
|
2012-06-14 15:13:16 +08:00
|
|
|
|
2012-06-08 13:55:28 +08:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2021-12-25 10:04:45 +08:00
|
|
|
bool CatmullRomTo::initWithDuration(float dt, PointArray* points)
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2013-06-20 14:13:12 +08:00
|
|
|
if (CardinalSplineTo::initWithDuration(dt, points, 0.5f))
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
|
|
|
return true;
|
|
|
|
}
|
2021-12-25 10:04:45 +08:00
|
|
|
|
2012-06-08 13:55:28 +08:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2013-06-20 14:13:12 +08:00
|
|
|
CatmullRomTo* CatmullRomTo::clone() const
|
2013-06-14 08:25:14 +08:00
|
|
|
{
|
2015-01-08 10:22:45 +08:00
|
|
|
// no copy constructor
|
2021-12-08 00:11:53 +08:00
|
|
|
auto a = new CatmullRomTo();
|
2015-01-08 10:22:45 +08:00
|
|
|
a->initWithDuration(this->_duration, this->_points->clone());
|
|
|
|
a->autorelease();
|
|
|
|
return a;
|
2013-06-14 08:25:14 +08:00
|
|
|
}
|
|
|
|
|
2013-06-20 14:13:12 +08:00
|
|
|
CatmullRomTo* CatmullRomTo::reverse() const
|
2013-06-19 06:06:53 +08:00
|
|
|
{
|
2021-12-25 10:04:45 +08:00
|
|
|
PointArray* reverse = _points->reverse();
|
2013-12-18 17:47:20 +08:00
|
|
|
return CatmullRomTo::create(_duration, reverse);
|
2013-06-19 06:06:53 +08:00
|
|
|
}
|
|
|
|
|
2013-06-20 14:13:12 +08:00
|
|
|
/* CatmullRomBy
|
2012-06-08 13:55:28 +08:00
|
|
|
*/
|
2012-06-14 15:13:16 +08:00
|
|
|
|
2021-12-25 10:04:45 +08:00
|
|
|
CatmullRomBy* CatmullRomBy::create(float dt, PointArray* points)
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2021-12-25 10:04:45 +08:00
|
|
|
CatmullRomBy* ret = new CatmullRomBy();
|
2021-12-08 00:11:53 +08:00
|
|
|
if (ret->initWithDuration(dt, points))
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2021-12-08 00:11:53 +08:00
|
|
|
ret->autorelease();
|
|
|
|
}
|
2021-12-25 10:04:45 +08:00
|
|
|
else
|
2021-12-08 00:11:53 +08:00
|
|
|
{
|
2022-07-15 19:17:01 +08:00
|
|
|
AX_SAFE_DELETE(ret);
|
2012-06-08 13:55:28 +08:00
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2021-12-25 10:04:45 +08:00
|
|
|
bool CatmullRomBy::initWithDuration(float dt, PointArray* points)
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
2013-06-20 14:13:12 +08:00
|
|
|
if (CardinalSplineTo::initWithDuration(dt, points, 0.5f))
|
2012-06-08 13:55:28 +08:00
|
|
|
{
|
|
|
|
return true;
|
|
|
|
}
|
2021-12-25 10:04:45 +08:00
|
|
|
|
2012-06-08 13:55:28 +08:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2013-06-20 14:13:12 +08:00
|
|
|
CatmullRomBy* CatmullRomBy::clone() const
|
2013-06-14 08:25:14 +08:00
|
|
|
{
|
2016-04-08 13:40:36 +08:00
|
|
|
// no copy constructor
|
2021-12-08 00:11:53 +08:00
|
|
|
auto a = new CatmullRomBy();
|
2015-01-08 10:22:45 +08:00
|
|
|
a->initWithDuration(this->_duration, this->_points->clone());
|
|
|
|
a->autorelease();
|
|
|
|
return a;
|
2013-06-14 08:25:14 +08:00
|
|
|
}
|
|
|
|
|
2013-06-20 14:13:12 +08:00
|
|
|
CatmullRomBy* CatmullRomBy::reverse() const
|
2013-06-19 06:06:53 +08:00
|
|
|
{
|
2021-12-25 10:04:45 +08:00
|
|
|
PointArray* copyConfig = _points->clone();
|
2013-06-19 06:06:53 +08:00
|
|
|
|
2015-01-08 10:22:45 +08:00
|
|
|
//
|
|
|
|
// convert "absolutes" to "diffs"
|
|
|
|
//
|
2014-05-15 01:07:09 +08:00
|
|
|
Vec2 p = copyConfig->getControlPointAtIndex(0);
|
2013-12-27 15:06:16 +08:00
|
|
|
for (ssize_t i = 1; i < copyConfig->count(); ++i)
|
2013-06-19 06:06:53 +08:00
|
|
|
{
|
2014-05-15 01:07:09 +08:00
|
|
|
Vec2 current = copyConfig->getControlPointAtIndex(i);
|
2021-12-25 10:04:45 +08:00
|
|
|
Vec2 diff = current - p;
|
2013-06-19 06:06:53 +08:00
|
|
|
copyConfig->replaceControlPoint(diff, i);
|
|
|
|
|
|
|
|
p = current;
|
|
|
|
}
|
|
|
|
|
2016-04-08 13:40:36 +08:00
|
|
|
// convert to "diffs" to "reverse absolute"
|
2013-06-19 06:06:53 +08:00
|
|
|
|
2021-12-25 10:04:45 +08:00
|
|
|
PointArray* reverse = copyConfig->reverse();
|
2013-06-19 06:06:53 +08:00
|
|
|
|
2016-04-08 13:40:36 +08:00
|
|
|
// 1st element (which should be 0,0) should be here too
|
2013-06-19 06:06:53 +08:00
|
|
|
|
2021-12-25 10:04:45 +08:00
|
|
|
p = reverse->getControlPointAtIndex(reverse->count() - 1);
|
|
|
|
reverse->removeControlPointAtIndex(reverse->count() - 1);
|
2013-06-19 06:06:53 +08:00
|
|
|
|
2013-07-11 16:38:58 +08:00
|
|
|
p = -p;
|
2013-11-16 21:08:00 +08:00
|
|
|
reverse->insertControlPoint(p, 0);
|
2013-06-19 06:06:53 +08:00
|
|
|
|
2013-12-27 15:06:16 +08:00
|
|
|
for (ssize_t i = 1; i < reverse->count(); ++i)
|
2013-06-19 06:06:53 +08:00
|
|
|
{
|
2014-05-15 01:07:09 +08:00
|
|
|
Vec2 current = reverse->getControlPointAtIndex(i);
|
2021-12-25 10:04:45 +08:00
|
|
|
current = -current;
|
|
|
|
Vec2 abs = current + p;
|
2013-11-16 21:08:00 +08:00
|
|
|
reverse->replaceControlPoint(abs, i);
|
2013-06-19 06:06:53 +08:00
|
|
|
|
|
|
|
p = abs;
|
|
|
|
}
|
|
|
|
|
2013-11-16 21:08:00 +08:00
|
|
|
return CatmullRomBy::create(_duration, reverse);
|
2013-06-19 06:06:53 +08:00
|
|
|
}
|
|
|
|
|
2022-07-11 17:50:21 +08:00
|
|
|
NS_AX_END;
|