cocos2d-x/cocos/2d/CCActionGrid.cpp

/****************************************************************************
Copyright (c) 2009      On-Core
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2013-2017 Chukong Technologies Inc.
 
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#include "2d/CCActionGrid.h"

#include "2d/CCGrid.h"
#include "2d/CCNodeGrid.h"
#include "base/CCDirector.h"

NS_CC_BEGIN
// implementation of GridAction

bool GridAction::initWithDuration(float duration, const Size& gridSize)
{
    if (ActionInterval::initWithDuration(duration))
    {
        _gridSize = gridSize;

        return true;
    }

    return false;
}

void GridAction::startWithTarget(Node *target)
{
    ActionInterval::startWithTarget(target);
    cacheTargetAsGridNode();

    GridBase *targetGrid = _gridNodeTarget->getGrid();

    if (targetGrid && targetGrid->getReuseGrid() > 0)
    {
        if (targetGrid->isActive() && targetGrid->getGridSize().width == _gridSize.width
            && targetGrid->getGridSize().height == _gridSize.height)
        {
            targetGrid->reuse();
        }
        else
        {
            CCASSERT(0, "Invalid grid parameters!");
        }
    }
    else
    {
        if (targetGrid && targetGrid->isActive())
        {
            targetGrid->setActive(false);
        }

        auto newgrid = this->getGrid();
        _gridNodeTarget->setGrid(newgrid);
        _gridNodeTarget->getGrid()->setActive(true);
    }
}

void GridAction::cacheTargetAsGridNode()
{
    _gridNodeTarget = dynamic_cast<NodeGrid*> (_target);
    CCASSERT(_gridNodeTarget, "GridActions can only used on NodeGrid");
}

GridAction* GridAction::reverse() const
{
    // FIXME: This conversion isn't safe.
    return (GridAction*)ReverseTime::create( this->clone() );
}

GridBase* GridAction::getGrid()
{
    // Abstract class needs implementation
    CCASSERT(0, "Subclass should implement this method!");

    return nullptr;
}

// implementation of Grid3DAction

GridBase* Grid3DAction::getGrid()
{
    return Grid3D::create(_gridSize, _gridNodeTarget->getGridRect());
}

Vec3 Grid3DAction::getVertex(const Vec2& position) const
{
    Grid3D *g = (Grid3D*)_gridNodeTarget->getGrid();
    return g->getVertex(position);
}

Vec3 Grid3DAction::getOriginalVertex(const Vec2& position) const
{
    Grid3D *g = (Grid3D*)_gridNodeTarget->getGrid();
    return g->getOriginalVertex(position);
}

void Grid3DAction::setVertex(const Vec2& position, const Vec3& vertex)
{
    Grid3D *g = (Grid3D*)_gridNodeTarget->getGrid();
    g->setVertex(position, vertex);
}

Rect Grid3DAction::getGridRect() const
{
    Grid3D *g = (Grid3D*)_gridNodeTarget->getGrid();
    return g->getGridRect();
}

// implementation of TiledGrid3DAction

GridBase* TiledGrid3DAction::getGrid(void)
{
    return TiledGrid3D::create(_gridSize, _gridNodeTarget->getGridRect());
}

Quad3 TiledGrid3DAction::getTile(const Vec2& pos) const
{
    TiledGrid3D *g = (TiledGrid3D*)_gridNodeTarget->getGrid();
    return g->getTile(pos);
}

Quad3 TiledGrid3DAction::getOriginalTile(const Vec2& pos) const
{
    TiledGrid3D *g = (TiledGrid3D*)_gridNodeTarget->getGrid();
    return g->getOriginalTile(pos);
}

void TiledGrid3DAction::setTile(const Vec2& pos, const Quad3& coords)
{
    TiledGrid3D *g = (TiledGrid3D*)_gridNodeTarget->getGrid();
    return g->setTile(pos, coords);
}

// implementation AccelDeccelAmplitude

AccelDeccelAmplitude* AccelDeccelAmplitude::create(Action *action, float duration)
{
    AccelDeccelAmplitude *ret = new (std::nothrow) AccelDeccelAmplitude();
    if (ret && ret->initWithAction(action, duration))
    {
        ret->autorelease();
        return ret;
    }

    delete ret;
    return nullptr;
}

bool AccelDeccelAmplitude::initWithAction(Action *action, float duration)
{
    if (ActionInterval::initWithDuration(duration))
    {
        _rate = 1.0f;
        _other = (ActionInterval*)(action);
        action->retain();

        return true;
    }

    return false;
}

AccelDeccelAmplitude* AccelDeccelAmplitude::clone() const
{
    // no copy constructor
    if (_other)
        return AccelDeccelAmplitude::create(_other->clone(), _rate);
    
    return nullptr;
}

AccelDeccelAmplitude::~AccelDeccelAmplitude()
{
    CC_SAFE_RELEASE(_other);
}

void AccelDeccelAmplitude::startWithTarget(Node *target)
{
    ActionInterval::startWithTarget(target);
    _other->startWithTarget(target);
}

void AccelDeccelAmplitude::update(float time)
{
    float f = time * 2;

    if (f > 1)
    {
        f -= 1;
        f = 1 - f;
    }

    ((AccelDeccelAmplitude*)(_other))->setAmplitudeRate(powf(f, _rate));
}

AccelDeccelAmplitude* AccelDeccelAmplitude::reverse() const
{
    if (_other)
        return AccelDeccelAmplitude::create(_other->reverse(), _duration);
    
    return nullptr;
}

// implementation of AccelAmplitude

AccelAmplitude* AccelAmplitude::create(Action *action, float duration)
{
    AccelAmplitude *ret = new (std::nothrow) AccelAmplitude();
    if (ret && ret->initWithAction(action, duration))
    {
        ret->autorelease();
        return ret;
    }

    delete ret;
    return nullptr;
}

bool AccelAmplitude::initWithAction(Action *action, float duration)
{
    if (ActionInterval::initWithDuration(duration))
    {
        _rate = 1.0f;
        _other = (ActionInterval*)(action);
        action->retain();

        return true;
    }

    return false;
}

AccelAmplitude* AccelAmplitude::clone() const
{
    // no copy constructor
    if (_other)
        return AccelAmplitude::create(_other->clone(), _duration);
    
    return nullptr;
}

AccelAmplitude::~AccelAmplitude()
{
    CC_SAFE_DELETE(_other);
}

void AccelAmplitude::startWithTarget(Node *target)
{
    ActionInterval::startWithTarget(target);
    _other->startWithTarget(target);
}

void AccelAmplitude::update(float time)
{
    ((AccelAmplitude*)(_other))->setAmplitudeRate(powf(time, _rate));
    _other->update(time);
}

AccelAmplitude* AccelAmplitude::reverse() const
{
    if (_other)
        return AccelAmplitude::create(_other->reverse(), _duration);
    
    return nullptr;
}

// DeccelAmplitude

DeccelAmplitude* DeccelAmplitude::create(Action *action, float duration)
{
    DeccelAmplitude *ret = new (std::nothrow) DeccelAmplitude();
    if (ret && ret->initWithAction(action, duration))
    {
        ret->autorelease();
        return ret;
    }

    delete ret;
    return nullptr;
}

bool DeccelAmplitude::initWithAction(Action *action, float duration)
{
    if (ActionInterval::initWithDuration(duration))
    {
        _rate = 1.0f;
        _other = (ActionInterval*)(action);
        action->retain();

        return true;
    }

    return false;
}

DeccelAmplitude::~DeccelAmplitude()
{
    CC_SAFE_RELEASE(_other);
}

void DeccelAmplitude::startWithTarget(Node *target)
{
    ActionInterval::startWithTarget(target);
    _other->startWithTarget(target);
}

void DeccelAmplitude::update(float time)
{
    ((DeccelAmplitude*)(_other))->setAmplitudeRate(powf((1 - time), _rate));
    _other->update(time);
}

DeccelAmplitude* DeccelAmplitude::clone() const
{
    // no copy constructor
    if (_other)
        return DeccelAmplitude::create(_other->clone(), _duration);
    
    return nullptr;
}

DeccelAmplitude* DeccelAmplitude::reverse() const
{
    return DeccelAmplitude::create(_other->reverse(), _duration);
}

// implementation of StopGrid

void StopGrid::startWithTarget(Node *target)
{
    ActionInstant::startWithTarget(target);
    cacheTargetAsGridNode();
    GridBase *grid = _gridNodeTarget->getGrid();
    if (grid && grid->isActive())
    {
        grid->setActive(false);
    }
}

void StopGrid::cacheTargetAsGridNode()
{
    _gridNodeTarget = dynamic_cast<NodeGrid*> (_target);
    CCASSERT(_gridNodeTarget, "GridActions can only used on NodeGrid");
}

StopGrid* StopGrid::create()
{
    StopGrid* action = new (std::nothrow) StopGrid();
    if (action)
    {
        action->autorelease();
        return action;
    }

    delete action;
    return nullptr;
}

StopGrid* StopGrid::clone() const
{
    return StopGrid::create();
}

StopGrid* StopGrid::reverse() const
{
    // no reverse, just clone it
    return this->clone();
}

// implementation of ReuseGrid

ReuseGrid* ReuseGrid::create(int times)
{
    ReuseGrid *action = new (std::nothrow) ReuseGrid();
    if (action && action->initWithTimes(times))
    {
        action->autorelease();
        return action;
    }

    delete action;
    return nullptr;
}

bool ReuseGrid::initWithTimes(int times)
{
    _times = times;

    return true;
}

void ReuseGrid::startWithTarget(Node *target)
{
    ActionInstant::startWithTarget(target);
    cacheTargetAsGridNode();

    if (_gridNodeTarget->getGrid() && _gridNodeTarget->getGrid()->isActive())
    {
        _gridNodeTarget->getGrid()->setReuseGrid(_gridNodeTarget->getGrid()->getReuseGrid() + _times);
    }
}

void ReuseGrid::cacheTargetAsGridNode()
{
    _gridNodeTarget = dynamic_cast<NodeGrid*> (_target);
    CCASSERT(_gridNodeTarget, "GridActions can only used on NodeGrid");
}

ReuseGrid* ReuseGrid::clone() const
{
    return ReuseGrid::create(_times);
}

ReuseGrid* ReuseGrid::reverse() const
{
    // no reverse, just clone it
    return this->clone();
}

NS_CC_END