void ShaderNode::translateFormOtherNode(AffineTransform &transform)
{
Node::setAdditionalTransform(transform);
_center = Vertex2F(_additionalTransform.tx * CC_CONTENT_SCALE_FACTOR(), _additionalTransform.ty * CC_CONTENT_SCALE_FACTOR());
_resolution = Vertex2F( SIZE_X * _additionalTransform.a, SIZE_Y * _additionalTransform.d);
}
ShaderNode::ShaderNode()
: _center(Vertex2F(0.0f, 0.0f))
, _resolution(Vertex2F(0.0f, 0.0f))
, _time(0.0f)
, _uniformCenter(0)
, _uniformResolution(0)
, _uniformTime(0)
{
}
void ShaderNode::setResolution(const float& w, const float& h)
{
_resolution = Vertex2F(w, h);
setContentSize(Size(w, h));
setAnchorPoint(Point(0.5f, 0.5f));
}
MaskShaderEffect::MaskShaderEffect()
:_touchPoint(Vertex2F(0.0f, 0.0f))
,_uniformTouchPoint(0)
,_uniformCoefficient(0)
,_maskParams()
,_textureID(0)
,_texture(NULL)
{
}
bool ShaderNode::initWithVertex(const char *vert, const char *frag)
{
loadShaderVertex(vert, frag);
_time = 0;
_resolution = Vertex2F(SIZE_X, SIZE_Y);
scheduleUpdate();
setContentSize(Size(SIZE_X, SIZE_Y));
setAnchorPoint(Point(0.5f, 0.5f));
return true;
}
CCScrollLayer::CCScrollLayer():
m_beginPoint(Point::ZERO),
m_containBeginTouchPointFlag(false),
m_contentLayer(NULL),
m_pagingEnable(false),
m_toBoundsDuration(0.3),
m_nextPageDuration(0.3),
m_pageColumnsIndex(0), //列
m_pageRowIndex(0), //行
m_pageMovePercent(0.25),
m_delegate(NULL),
m_touchBeginSelector(NULL),
m_touchMoveSelector(NULL),
m_touchEndSelector(NULL),
m_actionEndSelector(NULL),
m_touchCancelSelector(NULL),
m_endFlag(false),
m_boundsDragDistance(Vertex2F(30,30)), //超出边界的距离
m_HMoveAbleFlag(false),
m_VMoveAbleFlag(false),
m_decelerateBeginSelector(NULL),
m_decelerateMoveSelector(NULL),
m_decelerateEndSelector(NULL),
m_actionBeginSelector(NULL),
m_actionMoveSelector(NULL),
m_decelerateFlag(false),
m_scrollDotVSprite(NULL),
m_scrollDotHSprite(NULL),
m_percentOfMoveWhenDragOut(0.25),
m_bShowVDot(false),
m_bShowHDot(false),
m_2fLastMoveDis(Vertex2F(0, 0)),
m_fDeceleratePercent(0.95)
{
ignoreAnchorPointForPosition(false);
}
void drawLine( const Point& origin, const Point& destination )
{
lazy_init();
Vertex2F vertices[2] = {
Vertex2F(origin.x, origin.y),
Vertex2F(destination.x, destination.y)
};
s_shader->use();
s_shader->setUniformsForBuiltins();
s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &s_color.r, 1);
GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
#ifdef EMSCRIPTEN
setGLBufferData(vertices, 16);
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);
#endif // EMSCRIPTEN
glDrawArrays(GL_LINES, 0, 2);
CC_INCREMENT_GL_DRAWS(1);
}
void drawSolidPoly( const Point *poli, unsigned int numberOfPoints, Color4F color )
{
lazy_init();
s_shader->use();
s_shader->setUniformsForBuiltins();
s_shader->setUniformLocationWith4fv(s_colorLocation, (GLfloat*) &color.r, 1);
GL::enableVertexAttribs( GL::VERTEX_ATTRIB_FLAG_POSITION );
// XXX: Mac OpenGL error. arrays can't go out of scope before draw is executed
Vertex2F* newPoli = new Vertex2F[numberOfPoints];
// iPhone and 32-bit machines optimization
if( sizeof(Point) == sizeof(Vertex2F) )
{
#ifdef EMSCRIPTEN
setGLBufferData((void*) poli, numberOfPoints * sizeof(Point));
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, poli);
#endif // EMSCRIPTEN
}
else
{
// Mac on 64-bit
for( unsigned int i=0; i<numberOfPoints;i++)
{
newPoli[i] = Vertex2F( poli[i].x, poli[i].y );
}
#ifdef EMSCRIPTEN
setGLBufferData(newPoli, numberOfPoints * sizeof(Vertex2F));
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, 0);
#else
glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 2, GL_FLOAT, GL_FALSE, 0, newPoli);
#endif // EMSCRIPTEN
}
glDrawArrays(GL_TRIANGLE_FAN, 0, (GLsizei) numberOfPoints);
CC_SAFE_DELETE_ARRAY(newPoli);
CC_INCREMENT_GL_DRAWS(1);
}
void ShaderNode::setPosition(const Point &newPosition)
{
Node::setPosition(newPosition);
Point position = getPosition();
_center = Vertex2F(position.x * CC_CONTENT_SCALE_FACTOR(), position.y * CC_CONTENT_SCALE_FACTOR());
}
NS_CC_BEGIN
void ccVertexLineToPolygon(Point *points, float stroke, Vertex2F *vertices, unsigned int offset, unsigned int nuPoints)
{
nuPoints += offset;
if(nuPoints<=1) return;
stroke *= 0.5f;
unsigned int idx;
unsigned int nuPointsMinus = nuPoints-1;
for(unsigned int i = offset; i<nuPoints; i++)
{
idx = i*2;
Point p1 = points[i];
Point perpVector;
if(i == 0)
perpVector = (p1 - points[i+1]).normalize().getPerp();
else if(i == nuPointsMinus)
perpVector = (points[i-1] - p1).normalize().getPerp();
else
{
Point p2 = points[i+1];
Point p0 = points[i-1];
Point p2p1 = (p2 - p1).normalize();
Point p0p1 = (p0 - p1).normalize();
// Calculate angle between vectors
float angle = acosf(p2p1.dot(p0p1));
if(angle < CC_DEGREES_TO_RADIANS(70))
perpVector = p2p1.getMidpoint(p0p1).normalize().getPerp();
else if(angle < CC_DEGREES_TO_RADIANS(170))
perpVector = p2p1.getMidpoint(p0p1).normalize();
else
perpVector = (p2 - p0).normalize().getPerp();
}
perpVector = perpVector * stroke;
vertices[idx] = Vertex2F(p1.x+perpVector.x, p1.y+perpVector.y);
vertices[idx+1] = Vertex2F(p1.x-perpVector.x, p1.y-perpVector.y);
}
// Validate vertexes
offset = (offset==0) ? 0 : offset-1;
for(unsigned int i = offset; i<nuPointsMinus; i++)
{
idx = i*2;
const unsigned int idx1 = idx+2;
Vertex2F p1 = vertices[idx];
Vertex2F p2 = vertices[idx+1];
Vertex2F p3 = vertices[idx1];
Vertex2F p4 = vertices[idx1+1];
float s;
//BOOL fixVertex = !ccpLineIntersect(Point(p1.x, p1.y), Point(p4.x, p4.y), Point(p2.x, p2.y), Point(p3.x, p3.y), &s, &t);
bool fixVertex = !ccVertexLineIntersect(p1.x, p1.y, p4.x, p4.y, p2.x, p2.y, p3.x, p3.y, &s);
if(!fixVertex)
if (s<0.0f || s>1.0f)
fixVertex = true;
if(fixVertex)
{
vertices[idx1] = p4;
vertices[idx1+1] = p3;
}
}
}
ShaderNode::ShaderNode()
:_resolution(Vertex2F(0.0f, 0.0f))
,_uniformResolution(0)
{
}
