axmol/cocos/2d/CCNewSprite.cpp

//
//  CCNewSprite.cpp
//  cocos2d_libs
//
//  Created by NiTe Luo on 10/31/13.
//
//

#include "CCNewSprite.h"
#include "RenderCommand.h"
#include "Renderer.h"
#include "QuadCommand.h"

NS_CC_BEGIN

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

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

NewSprite* NewSprite::create(const char *filename)
{
    NewSprite* sprite = new NewSprite();
    if(sprite && sprite->initWithFile(filename))
    {
        sprite->autorelease();
        return sprite;
    }
    CC_SAFE_DELETE(sprite);
    return NULL;
}

NewSprite::NewSprite()
:Sprite()
{

}

NewSprite::~NewSprite(void)
{
}

void NewSprite::updateTransform()
{
    if(_dirty)
    {
        if(!_visible)
        {
            _quad.br.vertices = _quad.tl.vertices = _quad.tr.vertices = _quad.bl.vertices = Vertex3F(0,0,0);
            _shouldBeHidden = true;
        }
        else
        {
            _shouldBeHidden = false;

            //TODO optimize this transformation, should use parent's transformation instead
            _transformToBatch = getNodeToWorldTransform();

            //
            // 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 = _transformToBatch.tx;
            float y = _transformToBatch.ty;

            float cr = _transformToBatch.a;
            float sr = _transformToBatch.b;
            float cr2 = _transformToBatch.d;
            float sr2 = -_transformToBatch.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 = Vertex3F( RENDER_IN_SUBPIXEL(ax), RENDER_IN_SUBPIXEL(ay), _vertexZ );
            _quad.br.vertices = Vertex3F( RENDER_IN_SUBPIXEL(bx), RENDER_IN_SUBPIXEL(by), _vertexZ );
            _quad.tl.vertices = Vertex3F( RENDER_IN_SUBPIXEL(dx), RENDER_IN_SUBPIXEL(dy), _vertexZ );
            _quad.tr.vertices = Vertex3F( RENDER_IN_SUBPIXEL(cx), RENDER_IN_SUBPIXEL(cy), _vertexZ );
        }
    }

    _recursiveDirty = false;
    setDirty(false);
}

void NewSprite::draw(void)
{
    updateTransform();
    //TODO implement z order
    QuadCommand* renderCommand = new QuadCommand(0, 0,_texture->getName(), _shaderProgram, _blendFunc, &_quad, 1);

    Renderer::getInstance()->addRenderCommand(renderCommand);
}

NS_CC_END