axmol/extensions/CCArmature/display/CCSkin.cpp

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#include "CCSkin.h"
#include "../utils/CCTransformHelp.h"

namespace cocos2d { namespace extension { namespace armature {

#if CC_SPRITEBATCHNODE_RENDER_SUBPIXEL
#define RENDER_IN_SUBPIXEL
#else
#define RENDER_IN_SUBPIXEL(__ARGS__) (ceil(__ARGS__))
#endif

Skin *Skin::create()
{
    Skin *skin = new Skin();
    if(skin && skin->init())
    {
        skin->autorelease();
        return skin;
    }
    CC_SAFE_DELETE(skin);
    return NULL;
}

Skin *Skin::createWithSpriteFrameName(const char *pszSpriteFrameName)
{
    Skin *skin = new Skin();
    if(skin && skin->initWithSpriteFrameName(pszSpriteFrameName))
    {
        skin->autorelease();
        return skin;
    }
    CC_SAFE_DELETE(skin);
    return NULL;
}

Skin::Skin()
    : _bone(NULL)
{
}

void Skin::setSkinData(const BaseData &var)
{
    _skinData = var;

    setScaleX(_skinData.scaleX);
    setScaleY(_skinData.scaleY);
    setRotation(CC_RADIANS_TO_DEGREES(_skinData.skewX));
    setPosition(ccp(_skinData.x, _skinData.y));

    _skinTransform = nodeToParentTransform();
}

const BaseData &Skin::getSkinData()
{
    return _skinData;
}

void Skin::updateTransform()
{
    _transform = AffineTransformConcat(_skinTransform, _bone->nodeToArmatureTransform());
}

void Skin::draw()
{
    // If it is not visible, or one of its ancestors is not visible, then do nothing:
    if( !_visible)
    {
        _quad.br.vertices = _quad.tl.vertices = _quad.tr.vertices = _quad.bl.vertices = vertex3(0, 0, 0);
    }
    else
    {
        //
        // calculate the Quad based on the Affine Matrix
        //

        Size size = _rect.size;

        float x1 = _offsetPosition.x;
        float y1 = _offsetPosition.y;

        float x2 = x1 + size.width;
        float y2 = y1 + size.height;

        float x = _transform.tx;
        float y = _transform.ty;

        float cr = _transform.a;
        float sr = _transform.b;
        float cr2 = _transform.d;
        float sr2 = -_transform.c;
        float ax = x1 * cr - y1 * sr2 + x;
        float ay = x1 * sr + y1 * cr2 + y;

        float bx = x2 * cr - y1 * sr2 + x;
        float by = x2 * sr + y1 * cr2 + y;

        float cx = x2 * cr - y2 * sr2 + x;
        float cy = x2 * sr + y2 * cr2 + y;

        float dx = x1 * cr - y2 * sr2 + x;
        float dy = x1 * sr + y2 * cr2 + y;

        _quad.bl.vertices = vertex3( RENDER_IN_SUBPIXEL(ax), RENDER_IN_SUBPIXEL(ay), _vertexZ );
        _quad.br.vertices = vertex3( RENDER_IN_SUBPIXEL(bx), RENDER_IN_SUBPIXEL(by), _vertexZ );
        _quad.tl.vertices = vertex3( RENDER_IN_SUBPIXEL(dx), RENDER_IN_SUBPIXEL(dy), _vertexZ );
        _quad.tr.vertices = vertex3( RENDER_IN_SUBPIXEL(cx), RENDER_IN_SUBPIXEL(cy), _vertexZ );
    }

    // MARMALADE CHANGE: ADDED CHECK FOR NULL, TO PERMIT SPRITES WITH NO BATCH NODE / TEXTURE ATLAS
    if (_textureAtlas)
    {
        _textureAtlas->updateQuad(&_quad, _textureAtlas->getTotalQuads());
    }
}

}}} // namespace cocos2d { namespace extension { namespace armature {