axmol/cocos2dx/actions/CCActionGrid3D.cpp

/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2009      On-Core
 
http://www.cocos2d-x.org

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#include "CCActionGrid3D.h"
#include "CCDirector.h"
#include <stdlib.h>

NS_CC_BEGIN
// implementation of Waves3D

Waves3D* Waves3D::create(float duration, const Size& gridSize, unsigned int waves, float amplitude)
{
    Waves3D *pAction = new Waves3D();

    if (pAction)
    {
        if (pAction->initWithDuration(duration, gridSize, waves, amplitude))
        {
            pAction->autorelease();
        }
        else
        {
            CC_SAFE_RELEASE_NULL(pAction);
        }
    }

    return pAction;    
}

bool Waves3D::initWithDuration(float duration, const Size& gridSize, unsigned int waves, float amplitude)
{
    if (Grid3DAction::initWithDuration(duration, gridSize))
    {
        _waves = waves;
        _amplitude = amplitude;
        _amplitudeRate = 1.0f;

        return true;
    }

    return false;
}

Waves3D* Waves3D::clone() const
{
	// no copy constructor
	auto a = new Waves3D();
    a->initWithDuration(_duration, _gridSize, _waves, _amplitude);
	a->autorelease();
	return a;
}

void Waves3D::update(float time)
{
    int i, j;
    for (i = 0; i < _gridSize.width + 1; ++i)
    {
        for (j = 0; j < _gridSize.height + 1; ++j)
        {
            Vertex3F v = getOriginalVertex(Point(i ,j));
            v.z += (sinf((float)M_PI * time * _waves * 2 + (v.y+v.x) * 0.01f) * _amplitude * _amplitudeRate);
            //CCLOG("v.z offset is %f\n", (sinf((float)M_PI * time * _waves * 2 + (v.y+v.x) * .01f) * _amplitude * _amplitudeRate));
            setVertex(Point(i, j), v);
        }
    }
}

// implementation of FlipX3D

FlipX3D* FlipX3D::create(float duration)
{
    FlipX3D *pAction = new FlipX3D();

    if (pAction)
    {
        if (pAction->initWithDuration(duration))
        {
            pAction->autorelease();
        }
        else
        {
            CC_SAFE_RELEASE_NULL(pAction);
        }
    }

    return pAction;
}

bool FlipX3D::initWithDuration(float duration)
{
    return Grid3DAction::initWithDuration(duration, Size(1, 1));
}

bool FlipX3D::initWithSize(const Size& gridSize, float duration)
{
    if (gridSize.width != 1 || gridSize.height != 1)
    {
        // Grid size must be (1,1)
        CCASSERT(0, "Grid size must be (1,1)");

        return false;
    }

    return Grid3DAction::initWithDuration(duration, gridSize);
}

FlipX3D* FlipX3D::clone() const
{
	// no copy constructor	
	auto a = new FlipX3D();
    a->initWithSize(_gridSize, _duration);
	a->autorelease();
	return a;
}

void FlipX3D::update(float time)
{
    float angle = (float)M_PI * time; // 180 degrees
    float mz = sinf(angle);
    angle = angle / 2.0f; // x calculates degrees from 0 to 90
    float mx = cosf(angle);

    Vertex3F v0, v1, v, diff;

    v0 = getOriginalVertex(Point(1, 1));
    v1 = getOriginalVertex(Point(0, 0));

    float    x0 = v0.x;
    float    x1 = v1.x;
    float x;
    Point    a, b, c, d;

    if ( x0 > x1 )
    {
        // Normal Grid
        a = Point(0,0);
        b = Point(0,1);
        c = Point(1,0);
        d = Point(1,1);
        x = x0;
    }
    else
    {
        // Reversed Grid
        c = Point(0,0);
        d = Point(0,1);
        a = Point(1,0);
        b = Point(1,1);
        x = x1;
    }
    
    diff.x = ( x - x * mx );
    diff.z = fabsf( floorf( (x * mz) / 4.0f ) );

    // bottom-left
    v = getOriginalVertex(a);
    v.x = diff.x;
    v.z += diff.z;
    setVertex(a, v);
    
    // upper-left
    v = getOriginalVertex(b);
    v.x = diff.x;
    v.z += diff.z;
    setVertex(b, v);
    
    // bottom-right
    v = getOriginalVertex(c);
    v.x -= diff.x;
    v.z -= diff.z;
    setVertex(c, v);
    
    // upper-right
    v = getOriginalVertex(d);
    v.x -= diff.x;
    v.z -= diff.z;
    setVertex(d, v);
}

// implementation of FlipY3D

FlipY3D* FlipY3D::clone() const
{
    // no copy constructor
	auto a = new FlipY3D();
    a->initWithSize(_gridSize, _duration);
	a->autorelease();
	return a;
}

FlipY3D* FlipY3D::create(float duration)
{
    FlipY3D *pAction = new FlipY3D();

    if (pAction)
    {
        if (pAction->initWithDuration(duration))
        {
            pAction->autorelease();
        }
        else
        {
            CC_SAFE_RELEASE_NULL(pAction);
        }
    }

    return pAction;
}

void FlipY3D::update(float time)
{
    float angle = (float)M_PI * time; // 180 degrees
    float mz = sinf( angle );
    angle = angle / 2.0f;     // x calculates degrees from 0 to 90
    float my = cosf(angle);
    
    Vertex3F    v0, v1, v, diff;
    
    v0 = getOriginalVertex(Point(1, 1));
    v1 = getOriginalVertex(Point(0, 0));
    
    float    y0 = v0.y;
    float    y1 = v1.y;
    float y;
    Point    a, b, c, d;
    
    if (y0 > y1)
    {
        // Normal Grid
        a = Point(0,0);
        b = Point(0,1);
        c = Point(1,0);
        d = Point(1,1);
        y = y0;
    }
    else
    {
        // Reversed Grid
        b = Point(0,0);
        a = Point(0,1);
        d = Point(1,0);
        c = Point(1,1);
        y = y1;
    }
    
    diff.y = y - y * my;
    diff.z = fabsf(floorf((y * mz) / 4.0f));
    
    // bottom-left
    v = getOriginalVertex(a);
    v.y = diff.y;
    v.z += diff.z;
    setVertex(a, v);
    
    // upper-left
    v = getOriginalVertex(b);
    v.y -= diff.y;
    v.z -= diff.z;
    setVertex(b, v);
    
    // bottom-right
    v = getOriginalVertex(c);
    v.y = diff.y;
    v.z += diff.z;
    setVertex(c, v);
    
    // upper-right
    v = getOriginalVertex(d);
    v.y -= diff.y;
    v.z -= diff.z;
    setVertex(d, v);
}


// implementation of Lens3D

Lens3D* Lens3D::create(float duration, const Size& gridSize, const Point& position, float radius)
{
    Lens3D *pAction = new Lens3D();

    if (pAction)
    {
        if (pAction->initWithDuration(duration, gridSize, position, radius))
        {
            pAction->autorelease();
        }
        else
        {
            CC_SAFE_RELEASE_NULL(pAction);
        }
    }

    return pAction;
}

bool Lens3D::initWithDuration(float duration, const Size& gridSize, const Point& position, float radius)
{
    if (Grid3DAction::initWithDuration(duration, gridSize))
    {
        _position = Point(-1, -1);
        setPosition(position);
        _radius = radius;
        _lensEffect = 0.7f;
        _concave = false;
        _dirty = true;

        return true;
    }

    return false;
}

Lens3D* Lens3D::clone() const
{
	// no copy constructor
	auto a = new Lens3D();
	a->initWithDuration(_duration, _gridSize, _position, _radius);
	a->autorelease();
	return a;
}

void Lens3D::setPosition(const Point& pos)
{
    if( !pos.equals(_position))
    {
        _position = pos;
        _dirty = true;
    }
}

void Lens3D::update(float time)
{
    CC_UNUSED_PARAM(time);
    if (_dirty)
    {
        int i, j;
        
        for (i = 0; i < _gridSize.width + 1; ++i)
        {
            for (j = 0; j < _gridSize.height + 1; ++j)
            {
                Vertex3F v = getOriginalVertex(Point(i, j));
                Point vect = _position - Point(v.x, v.y);
                float r = vect.getLength();
                
                if (r < _radius)
                {
                    r = _radius - r;
                    float pre_log = r / _radius;
                    if ( pre_log == 0 ) 
                    {
                        pre_log = 0.001f;
                    }

                    float l = logf(pre_log) * _lensEffect;
                    float new_r = expf( l ) * _radius;
                    
                    if (vect.getLength() > 0)
                    {
                        vect = vect.normalize();
                        Point new_vect = vect * new_r;
                        v.z += (_concave ? -1.0f : 1.0f) * new_vect.getLength() * _lensEffect;
                    }
                }
                
                setVertex(Point(i, j), v);
            }
        }
        
        _dirty = false;
    }
}

// implementation of Ripple3D

Ripple3D* Ripple3D::create(float duration, const Size& gridSize, const Point& position, float radius, unsigned int waves, float amplitude)
{
    Ripple3D *pAction = new Ripple3D();

    if (pAction)
    {
        if (pAction->initWithDuration(duration, gridSize, position, radius, waves, amplitude))
        {
            pAction->autorelease();
        }
        else
        {
            CC_SAFE_RELEASE_NULL(pAction);
        }
    }

    return pAction;
}

bool Ripple3D::initWithDuration(float duration, const Size& gridSize, const Point& position, float radius, unsigned int waves, float amplitude)
{
    if (Grid3DAction::initWithDuration(duration, gridSize))
    {
        setPosition(position);
        _radius = radius;
        _waves = waves;
        _amplitude = amplitude;
        _amplitudeRate = 1.0f;

        return true;
    }

    return false;
}

void Ripple3D::setPosition(const Point& position)
{
    _position = position;
}


Ripple3D* Ripple3D::clone() const
{
	// no copy constructor
	auto a = new Ripple3D();
	a->initWithDuration(_duration, _gridSize, _position, _radius, _waves, _amplitude);
	a->autorelease();
	return a;
}

void Ripple3D::update(float time)
{
    int i, j;

    for (i = 0; i < (_gridSize.width+1); ++i)
    {
        for (j = 0; j < (_gridSize.height+1); ++j)
        {
            Vertex3F v = getOriginalVertex(Point(i, j));
            Point vect = _position - Point(v.x,v.y);
            float r = vect.getLength();
            
            if (r < _radius)
            {
                r = _radius - r;
                float rate = powf(r / _radius, 2);
                v.z += (sinf( time*(float)M_PI * _waves * 2 + r * 0.1f) * _amplitude * _amplitudeRate * rate);
            }
            
            setVertex(Point(i, j), v);
        }
    }
}

// implementation of Shaky3D

Shaky3D* Shaky3D::create(float duration, const Size& gridSize, int range, bool shakeZ)
{
    Shaky3D *pAction = new Shaky3D();

    if (pAction)
    {
        if (pAction->initWithDuration(duration, gridSize, range, shakeZ))
        {
            pAction->autorelease();
        }
        else
        {
            CC_SAFE_RELEASE_NULL(pAction);
        }
    }

    return pAction;
}

bool Shaky3D::initWithDuration(float duration, const Size& gridSize, int range, bool shakeZ)
{
    if (Grid3DAction::initWithDuration(duration, gridSize))
    {
        _randrange = range;
        _shakeZ = shakeZ;

        return true;
    }

    return false;
}

Shaky3D* Shaky3D::clone() const
{
	// no copy constructor
	auto a = new Shaky3D();
    a->initWithDuration(_duration, _gridSize, _randrange, _shakeZ);
	a->autorelease();
	return a;
}

void Shaky3D::update(float time)
{
    CC_UNUSED_PARAM(time);
    int i, j;

    for (i = 0; i < (_gridSize.width+1); ++i)
    {
        for (j = 0; j < (_gridSize.height+1); ++j)
        {
            Vertex3F v = getOriginalVertex(Point(i ,j));
            v.x += (rand() % (_randrange*2)) - _randrange;
            v.y += (rand() % (_randrange*2)) - _randrange;
            if (_shakeZ)
            {
                v.z += (rand() % (_randrange*2)) - _randrange;
            }
            
            setVertex(Point(i, j), v);
        }
    }
}

// implementation of Liquid

Liquid* Liquid::create(float duration, const Size& gridSize, unsigned int waves, float amplitude)
{
    Liquid *pAction = new Liquid();

    if (pAction)
    {
        if (pAction->initWithDuration(duration, gridSize, waves, amplitude))
        {
            pAction->autorelease();
        }
        else
        {
            CC_SAFE_RELEASE_NULL(pAction);
        }
    }

    return pAction;
}

bool Liquid::initWithDuration(float duration, const Size& gridSize, unsigned int waves, float amplitude)
{
    if (Grid3DAction::initWithDuration(duration, gridSize))
    {
        _waves = waves;
        _amplitude = amplitude;
        _amplitudeRate = 1.0f;

        return true;
    }

    return false;
}

Liquid* Liquid::clone() const
{
	// no copy constructor
	auto a = new Liquid();
	a->initWithDuration(_duration, _gridSize, _waves, _amplitude);
	a->autorelease();
	return a;
}

void Liquid::update(float time)
{
    int i, j;

    for (i = 1; i < _gridSize.width; ++i)
    {
        for (j = 1; j < _gridSize.height; ++j)
        {
            Vertex3F v = getOriginalVertex(Point(i, j));
            v.x = (v.x + (sinf(time * (float)M_PI * _waves * 2 + v.x * .01f) * _amplitude * _amplitudeRate));
            v.y = (v.y + (sinf(time * (float)M_PI * _waves * 2 + v.y * .01f) * _amplitude * _amplitudeRate));
            setVertex(Point(i, j), v);
        }
    }
}

// implementation of Waves

Waves* Waves::create(float duration, const Size& gridSize, unsigned int waves, float amplitude, bool horizontal, bool vertical)
{
    Waves *pAction = new Waves();

    if (pAction)
    {
        if (pAction->initWithDuration(duration, gridSize, waves, amplitude, horizontal, vertical))
        {
            pAction->autorelease();
        }
        else
        {
            CC_SAFE_RELEASE_NULL(pAction);
        }
    }

    return pAction;
}

bool Waves::initWithDuration(float duration, const Size& gridSize, unsigned int waves, float amplitude, bool horizontal, bool vertical)
{
    if (Grid3DAction::initWithDuration(duration, gridSize))
    {
        _waves = waves;
        _amplitude = amplitude;
        _amplitudeRate = 1.0f;
        _horizontal = horizontal;
        _vertical = vertical;

        return true;
    }

    return false;
}

Waves* Waves::clone() const
{
	// no copy constructor
	auto a = new Waves();
	a->initWithDuration(_duration, _gridSize, _waves, _amplitude, _horizontal, _vertical);
	a->autorelease();
	return a;
}

void Waves::update(float time)
{
    int i, j;

    for (i = 0; i < _gridSize.width + 1; ++i)
    {
        for (j = 0; j < _gridSize.height + 1; ++j)
        {
            Vertex3F v = getOriginalVertex(Point(i, j));

            if (_vertical)
            {
                v.x = (v.x + (sinf(time * (float)M_PI * _waves * 2 + v.y * .01f) * _amplitude * _amplitudeRate));
            }

            if (_horizontal)
            {
                v.y = (v.y + (sinf(time * (float)M_PI * _waves * 2 + v.x * .01f) * _amplitude * _amplitudeRate));
            }

            setVertex(Point(i, j), v);
        }
    }
}

// implementation of Twirl

Twirl* Twirl::create(float duration, const Size& gridSize, Point position, unsigned int twirls, float amplitude)
{
    Twirl *pAction = new Twirl();

    if (pAction)
    {
        if (pAction->initWithDuration(duration, gridSize, position, twirls, amplitude))
        {
            pAction->autorelease();
        }
        else
        {
            CC_SAFE_RELEASE_NULL(pAction);
        }
    }

    return pAction;
}

bool Twirl::initWithDuration(float duration, const Size& gridSize, Point position, unsigned int twirls, float amplitude)
{
    if (Grid3DAction::initWithDuration(duration, gridSize))
    {
        setPosition(position);
        _twirls = twirls;
        _amplitude = amplitude;
        _amplitudeRate = 1.0f;

        return true;
    }

    return false;
}

void Twirl::setPosition(const Point& position)
{
    _position = position;
}

Twirl *Twirl::clone() const
{
	// no copy constructor	
	auto a = new Twirl();
	a->initWithDuration(_duration, _gridSize, _position, _twirls, _amplitude);
	a->autorelease();
	return a;
}

void Twirl::update(float time)
{
    int i, j;
    Point    c = _position;
    
    for (i = 0; i < (_gridSize.width+1); ++i)
    {
        for (j = 0; j < (_gridSize.height+1); ++j)
        {
            Vertex3F v = getOriginalVertex(Point(i ,j));
            
            Point    avg = Point(i-(_gridSize.width/2.0f), j-(_gridSize.height/2.0f));
            float r = avg.getLength();
            
            float amp = 0.1f * _amplitude * _amplitudeRate;
            float a = r * cosf( (float)M_PI/2.0f + time * (float)M_PI * _twirls * 2 ) * amp;
            
            Point d = Point(
                sinf(a) * (v.y-c.y) + cosf(a) * (v.x-c.x),
                cosf(a) * (v.y-c.y) - sinf(a) * (v.x-c.x));
            
            v.x = c.x + d.x;
            v.y = c.y + d.y;

            setVertex(Point(i ,j), v);
        }
    }
}

NS_CC_END