void
Drawer::drawPieces(const Board::ConstStackHandle& s) const
{
startTexture();
glPushMatrix();
translateTo(s.stackCoord());
glTranslatef(0.5f*caseD,0.5f*caseD,0.0f);
for (Stack::const_iterator
iter = s->begin(),
istop= s->end();
iter != istop;++iter)
{
drawPiece((*iter)->color());
glTranslatef(0.0f,0.0f,pieceH);
}
glPopMatrix();
endTexture();
}
void
Drawer::drawMove(const Board& b,const Game::Move m,float t) const
{
const float L = caseD*estimateDrawMoveLength(b,m);
const float t0 = (b.heightMax()+1-b.stackAt(m.src)->height())*pieceH/L;
const float t1 = 1.0f-(b.heightMax()+1-b.stackAt(m.dst)->height())*pieceH/L;
Board::ConstStackHandle src = b.stackAt(m.src);
glPushMatrix();
startTexture();
if (t<=t0)
{
t /= t0;
float srcH = src->height()*pieceH;
float dstH = b.heightMax()*pieceH+pieceH;
translateTo(m.src);
glTranslatef(0.5f*caseD,0.5f*caseD,
(1-t)*srcH+t*dstH);
for (Stack::const_iterator
iter = src->begin(),
istop= src->end();
iter != istop;++iter)
{
drawPiece((*iter)->color());
glTranslatef(0.0f,0.0f,pieceH);
}
}
else if (t<=t1)
{
t = (t-t0)/(t1-t0);
static const float shifts[5] = { 1.0f,0.5f,0.0f,-0.5f,-1.0f };
float srcX = boardB+vLabelW+m.src.x()*caseD+shifts[m.src.y()]*caseD;
float srcY = boardB+hLabelH+m.src.y()*caseD;
float dstX = boardB+vLabelW+m.dst.x()*caseD+shifts[m.dst.y()]*caseD;
float dstY = boardB+hLabelH+m.dst.y()*caseD;
glTranslatef((1.0f-t)*srcX+t*dstX+0.5f*caseD,
(1.0f-t)*srcY+t*dstY+0.5f*caseD,
b.heightMax()*pieceH+pieceH);
for (Stack::const_iterator
iter = src->begin(),
istop= src->end();
iter != istop;++iter)
{
drawPiece((*iter)->color());
glTranslatef(0.0f,0.0f,pieceH);
}
}
else
{
t = (t-t1)/(1.0f-t1);
float srcH = b.heightMax()*pieceH+pieceH;
float dstH = b.stackAt(m.dst)->height()*pieceH;
translateTo(m.dst);
glTranslatef(0.5f*caseD,0.5f*caseD,
(1-t)*srcH+t*dstH);
for (Stack::const_iterator
iter = src->begin(),
istop= src->end();
iter != istop;++iter)
{
drawPiece((*iter)->color());
glTranslatef(0.0f,0.0f,pieceH);
}
}
endTexture();
glPopMatrix();
}
