bool DataGrid::GenNext(list<CHANGE_ORDER>& outChange)
{
vector<Pos> vBlankCells;
for(int x = 0;x < 4;x ++)
{
for(int y = 0;y < 4;y ++)
{
if(data[y][x] == 0)
{
Pos pos;
pos.X = x;
pos.Y = y;
vBlankCells.push_back(pos);
}
}
}
//新产生的值，一定几率为4
int newValue = 2;
if(rand() % 100 < 20)
{
newValue = 4;
}
if(vBlankCells.size() > 0)
{
int index = rand() % vBlankCells.size();
const Pos& pos = vBlankCells[index];
data[pos.Y][pos.X] = newValue;
//记录变化
ChangeData change;
change.cType = enChangeType_AddNew;
change.Param1 = pos.Y;
change.Param2 = pos.X;
CHANGE_ORDER order;
order.push_back(change);
outChange.push_back(order);
if(vBlankCells.size() == 1)
{
if(CheckEnd() == true)
{
//游戏结束
return false;
}
}
return true;
}
else
{
//没有空格了
return false;
}
}
int TestIterators(hash_table* hash_info) {
iterator it;
char** i;
for ( it = SetToEnd(hash_info); !CheckBegin(it) ; it = Back(it) ) {
i = Value(it);
}
for ( it = SetToBegin(hash_info); !CheckEnd(it) ; it = Next(it) ) {
i = Value(it);
}
return 0;
}
bool CPDF_DataAvail::CheckDocStatus(DownloadHints* pHints) {
switch (m_docStatus) {
case PDF_DATAAVAIL_HEADER:
return CheckHeader(pHints);
case PDF_DATAAVAIL_FIRSTPAGE:
return CheckFirstPage(pHints);
case PDF_DATAAVAIL_HINTTABLE:
return CheckHintTables(pHints);
case PDF_DATAAVAIL_END:
return CheckEnd(pHints);
case PDF_DATAAVAIL_CROSSREF:
return CheckCrossRef(pHints);
case PDF_DATAAVAIL_CROSSREF_ITEM:
return CheckCrossRefItem(pHints);
case PDF_DATAAVAIL_CROSSREF_STREAM:
return CheckAllCrossRefStream(pHints);
case PDF_DATAAVAIL_TRAILER:
return CheckTrailer(pHints);
case PDF_DATAAVAIL_TRAILER_APPEND:
return CheckTrailerAppend(pHints);
case PDF_DATAAVAIL_LOADALLCROSSREF:
return LoadAllXref(pHints);
case PDF_DATAAVAIL_LOADALLFILE:
return LoadAllFile(pHints);
case PDF_DATAAVAIL_ROOT:
return CheckRoot(pHints);
case PDF_DATAAVAIL_INFO:
return CheckInfo(pHints);
case PDF_DATAAVAIL_ACROFORM:
return CheckAcroForm(pHints);
case PDF_DATAAVAIL_PAGETREE:
if (m_bTotalLoadPageTree)
return CheckPages(pHints);
return LoadDocPages(pHints);
case PDF_DATAAVAIL_PAGE:
if (m_bTotalLoadPageTree)
return CheckPage(pHints);
m_docStatus = PDF_DATAAVAIL_PAGE_LATERLOAD;
return true;
case PDF_DATAAVAIL_ERROR:
return LoadAllFile(pHints);
case PDF_DATAAVAIL_PAGE_LATERLOAD:
m_docStatus = PDF_DATAAVAIL_PAGE;
default:
m_bDocAvail = true;
return true;
}
}
//分程序语法判断
bool KH::GrammarPL0::Block(){
bool result = true;
if( GetWord(false).GetSign() == KH::_BLOCK) skip(1); //自然会跳过所有的block
if( CheckEnd()) {
Error( result, " Empty Input ! " );
return false;
}
if( GetWord(false).GetSign() == KH::_CONST){
skip(1);
if( GetWord(false).GetSign() == KH::_IDENTIFIER){
if( GetWord(1,false).GetSign() == KH::_ASSIGN &&
GetWord(2,false).GetSign() == KH::_INT ||
GetWord(2,false).GetSign() == KH::_FLOAT
)
{
Sa.PushVariable(GetLine(),GetWord(false).GetValue());
//Gen int a = 11
if(GetWord(2,false).GetSign() == KH::_INT)
GenPush("const int " + GetWord(false).GetValue() + " = " + GetWord(2,false).GetValue() + "; " );
else
GenPush("const float " + GetWord(false).GetValue() + " = " + GetWord(2,false).GetValue() + "; " );
skip(3,false);
while( GetWord(false).GetSign() == KH::_COMMA){
if( GetWord(1,false).GetSign() == KH::_IDENTIFIER &&
GetWord(2,false).GetSign() == KH::_ASSIGN &&
GetWord(3,false).GetSign() == KH::_INT ||
GetWord(3,false).GetSign() == KH::_FLOAT
)
{
Sa.PushVariable(GetLine(),GetWord(1,false).GetValue());
//Gen , int a = 11
if(GetWord(3,false).GetSign() == KH::_INT)
GenPush("const int " + GetWord(1,false).GetValue() + " = " + GetWord(3,false).GetValue() + "; " );
else
GenPush("const float " + GetWord(1,false).GetValue() + " = " + GetWord(3,false).GetValue() + "; " );
skip(4,false);
}
else
{
Error( result, " Const Loop Error : " + GetWord(false).GetValue() + GetWord(1,false).GetValue() + GetWord(2,false).GetValue() + GetWord(3,false).GetValue() );
break;
}
}
if( GetWord(false) == KH::_SEMICOLON)
skip(1);
else{
Error( result, " Const Not End : " + GetWord(false).GetValue() );
}
}
else
{
Error( result, " Const sentence Error : " + GetWord(false).GetValue() );
}
}
else
{
Error( result, " Const Identifier Error : " + GetWord(false).GetValue() + GetWord(1,false).GetValue() + GetWord(2,false).GetValue() );
}
}//End of if const ;
if( GetWord(false).GetSign() == KH::_VAR)//如果单词是"var"
{
skip(1);//取下一个单词
if( GetWord(false).GetSign() == KH::_IDENTIFIER){
Sa.PushVariable(GetLine(),GetWord(false).GetValue());
//Gen var a
GenPush("double " + GetWord(false).GetValue() + " = 0 ; " );
skip(1);
while( GetWord(false).GetSign() == KH::_COMMA){
if( GetWord(1,false).GetSign() == KH::_IDENTIFIER )
{
Sa.PushVariable(GetLine(),GetWord(1,false).GetValue());
//Gen var .. , a
GenPush("double " + GetWord(1,false).GetValue() + " = 0 ; " );
skip(2);
}
else
{
Error( result," Var Loop Error : " + GetWord(false).GetValue() + GetWord(1,false).GetValue());
break;
}
}
if( GetWord(false).GetSign() == KH::_SEMICOLON){
skip(1);
}
else
{
Error( result," Var Not End : " + GetWord(false).GetValue() );
}
}
else
{
Error( result," Var Identifier Error : " + GetWord(false).GetValue() );
}
}//End of if var
while ( GetWord(false).GetSign() == KH::_PROC)//如果单词是"procedure",则进入"函数定义"语法分析
{
skip(1);
if( GetWord(false).GetSign() == KH::_IDENTIFIER &&
GetWord(1,false).GetSign() == KH::_SEMICOLON)//"procedure"后应为标识符
{
Sa.PushVariable(GetLine(),GetWord(false).GetValue());
//Gen var .. , a
GenPush("double " + GetWord(false).GetValue() + "( ) { " ); //注意闭合！
funcNames.push_back(GetWord(false).GetValue());
skip(2);
Block();
//Gen var .. , a
GenPush(" return 0 ; } " ); //注意闭合！
}
else{
Error( result," Proc define Error : " + GetWord(false).GetValue() + GetWord(1,false).GetValue() ) ;
}
}//End of if procedure
if(!StatementParsing()){
Error( result," Parsing Error . " );
}//End of if Parsing
return result;
}
