axmol/extensions/CCArmature/display/CCSkin.cpp

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

NS_CC_EXT_BEGIN

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

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

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

CCSkin::CCSkin()
	:m_pBone(NULL)
{
}

void CCSkin::setSkinData(const Node& var)
{
	m_sSkinData = var;

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

	m_tSkinTransform = nodeToParentTransform();
}

const Node &CCSkin::getSkinData()
{
	return m_sSkinData;
}

void CCSkin::updateTransform()
{
	m_sTransform = CCAffineTransformConcat(m_tSkinTransform, m_pBone->nodeToArmatureTransform());
}

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

		CCSize size = m_obRect.size;

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

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

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

		float cr = m_sTransform.a;
		float sr = m_sTransform.b;
		float cr2 = m_sTransform.d;
		float sr2 = -m_sTransform.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;

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

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

NS_CC_EXT_END