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authorTiger Wang <ziwei.tiger@hotmail.co.uk>2014-07-18 21:10:51 +0200
committerTiger Wang <ziwei.tiger@hotmail.co.uk>2014-07-18 21:10:51 +0200
commit37140ae57835680d2c4fb3aa365082622d3a150e (patch)
tree89a636c74375b3c9f0fe77b20ecbadc693bd0989 /src/FurnaceRecipe.cpp
parentMerge branch 'master' of https://github.com/mc-server/MCServer into portals (diff)
parentMonster fixes (diff)
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Diffstat (limited to 'src/FurnaceRecipe.cpp')
-rw-r--r--src/FurnaceRecipe.cpp268
1 files changed, 174 insertions, 94 deletions
diff --git a/src/FurnaceRecipe.cpp b/src/FurnaceRecipe.cpp
index 2cb204ccf..cf29e227f 100644
--- a/src/FurnaceRecipe.cpp
+++ b/src/FurnaceRecipe.cpp
@@ -5,7 +5,8 @@
#include "Item.h"
#include <fstream>
-#include <sstream>
+
+#define FURNACE_RECIPE_FILE "furnace.txt"
@@ -54,128 +55,207 @@ void cFurnaceRecipe::ReloadRecipes(void)
ClearRecipes();
LOGD("Loading furnace recipes...");
- std::ifstream f;
- char a_File[] = "furnace.txt";
- f.open(a_File, std::ios::in);
-
+ std::ifstream f(FURNACE_RECIPE_FILE, std::ios::in);
if (!f.good())
{
- f.close();
- LOG("Could not open the furnace recipes file \"%s\"", a_File);
+ LOG("Could not open the furnace recipes file \"%s\". No furnace recipes are available.", FURNACE_RECIPE_FILE);
return;
}
+
+ unsigned int LineNum = 0;
+ AString ParsingLine;
- // TODO: Replace this messy parse with a high-level-structured one (ReadLine / ProcessLine)
- bool bSyntaxError = false;
- while (f.good())
+ while (std::getline(f, ParsingLine))
{
- char c;
+ LineNum++;
+ ParsingLine.erase(std::remove_if(ParsingLine.begin(), ParsingLine.end(), isspace), ParsingLine.end()); // Remove ALL whitespace from the line
+ if (ParsingLine.empty())
+ {
+ continue;
+ }
- //////////////////////////////////////////////////////////////////////////
- // comments
- f >> c;
- f.unget();
- if( c == '#' )
+ switch (ParsingLine[0])
{
- while( f.good() && c != '\n' )
+ case '#':
{
- f.get( c );
+ // Comment
+ break;
}
- continue;
- }
+
+ case '!':
+ {
+ AddFuelFromLine(ParsingLine, LineNum);
+ break;
+ }
+
+ default:
+ {
+ AddRecipeFromLine(ParsingLine, LineNum);
+ break;
+ }
+ } // switch (ParsingLine[0])
+ } // while (getline(ParsingLine))
+
+ LOG("Loaded " SIZE_T_FMT " furnace recipes and " SIZE_T_FMT " fuels", m_pState->Recipes.size(), m_pState->Fuel.size());
+}
+
+
+
+
+
+void cFurnaceRecipe::AddFuelFromLine(const AString & a_Line, int a_LineNum)
+{
+ // Fuel
+ int IItemID = 0, IItemCount = 0, IItemHealth = 0, IBurnTime = 0;
+ AString::size_type BeginPos = 1; // Begin at one after exclamation mark (bang)
+
+ if (
+ !ReadMandatoryNumber(BeginPos, ":", a_Line, a_LineNum, IItemID) || // Read item ID
+ !ReadOptionalNumbers(BeginPos, ":", "=", a_Line, a_LineNum, IItemCount, IItemHealth) || // Read item count (and optionally health)
+ !ReadMandatoryNumber(BeginPos, "0123456789", a_Line, a_LineNum, IBurnTime, true) // Read item burn time - last value
+ )
+ {
+ return;
+ }
+
+ // Add to fuel list:
+ Fuel F;
+ F.In = new cItem((ENUM_ITEM_ID)IItemID, (char)IItemCount, (short)IItemHealth);
+ F.BurnTime = IBurnTime;
+ m_pState->Fuel.push_back(F);
+}
+
+
+
+
+
+void cFurnaceRecipe::AddRecipeFromLine(const AString & a_Line, int a_LineNum)
+{
+ int IItemID = 0, IItemCount = 0, IItemHealth = 0, IBurnTime = 0;
+ int OItemID = 0, OItemCount = 0, OItemHealth = 0;
+ AString::size_type BeginPos = 0; // Begin at start of line
+
+ if (
+ !ReadMandatoryNumber(BeginPos, ":", a_Line, a_LineNum, IItemID) || // Read item ID
+ !ReadOptionalNumbers(BeginPos, ":", "@", a_Line, a_LineNum, IItemCount, IItemHealth) || // Read item count (and optionally health)
+ !ReadMandatoryNumber(BeginPos, "=", a_Line, a_LineNum, IBurnTime) || // Read item burn time
+ !ReadMandatoryNumber(BeginPos, ":", a_Line, a_LineNum, OItemID) || // Read result ID
+ !ReadOptionalNumbers(BeginPos, ":", "012456789", a_Line, a_LineNum, OItemCount, OItemHealth, true) // Read result count (and optionally health) - last value
+ )
+ {
+ return;
+ }
+
+ // Add to recipe list
+ Recipe R;
+ R.In = new cItem((ENUM_ITEM_ID)IItemID, (char)IItemCount, (short)IItemHealth);
+ R.Out = new cItem((ENUM_ITEM_ID)OItemID, (char)OItemCount, (short)OItemHealth);
+ R.CookTime = IBurnTime;
+ m_pState->Recipes.push_back(R);
+}
+
+
+
- //////////////////////////////////////////////////////////////////////////
- // Line breaks
- f.get( c );
- while( f.good() && ( c == '\n' || c == '\r' ) ) { f.get( c ); }
- if (f.eof())
+void cFurnaceRecipe::PrintParseError(unsigned int a_Line, size_t a_Position, const AString & a_CharactersMissing)
+{
+ LOGWARN("Error parsing furnace recipes at line %i pos " SIZE_T_FMT ": missing '%s'", a_Line, a_Position, a_CharactersMissing.c_str());
+}
+
+
+
+
+
+bool cFurnaceRecipe::ReadMandatoryNumber(AString::size_type & a_Begin, const AString & a_Delimiter, const AString & a_Text, unsigned int a_Line, int & a_Value, bool a_IsLastValue)
+{
+ // TODO: replace atoi with std::stoi
+ AString::size_type End;
+ if (a_IsLastValue)
+ {
+ End = a_Text.find_first_not_of(a_Delimiter, a_Begin);
+ }
+ else
+ {
+ End = a_Text.find_first_of(a_Delimiter, a_Begin);
+ if (End == AString::npos)
{
- break;
+ PrintParseError(a_Line, a_Begin, a_Delimiter);
+ return false;
}
- f.unget();
+ }
+
+ // stoi won't throw an exception if the string is alphanumeric, we should check for this
+ if (!DoesStringContainOnlyNumbers(a_Text.substr(a_Begin, End - a_Begin)))
+ {
+ PrintParseError(a_Line, a_Begin, "number");
+ return false;
+ }
+ a_Value = atoi(a_Text.substr(a_Begin, End - a_Begin).c_str());
+
+ a_Begin = End + 1; // Jump over delimiter
+ return true;
+}
+
+
+
+
- //////////////////////////////////////////////////////////////////////////
- // Check for fuel
- f >> c;
- if( c == '!' ) // It's fuel :)
+bool cFurnaceRecipe::ReadOptionalNumbers(AString::size_type & a_Begin, const AString & a_DelimiterOne, const AString & a_DelimiterTwo, const AString & a_Text, unsigned int a_Line, int & a_ValueOne, int & a_ValueTwo, bool a_IsLastValue)
+{
+ // TODO: replace atoi with std::stoi
+ AString::size_type End, Begin = a_Begin;
+
+ End = a_Text.find_first_of(a_DelimiterOne, Begin);
+ if (End != AString::npos)
+ {
+ if (DoesStringContainOnlyNumbers(a_Text.substr(Begin, End - Begin)))
{
- // Read item
- int IItemID = 0, IItemCount = 0, IItemHealth = 0;
- f >> IItemID;
- f >> c; if( c != ':' ) { bSyntaxError = true; break; }
- f >> IItemCount;
-
- // Optional health
- f >> c;
- if( c != ':' )
- f.unget();
+ a_ValueOne = std::atoi(a_Text.substr(Begin, End - Begin).c_str());
+ Begin = End + 1;
+
+ if (a_IsLastValue)
+ {
+ End = a_Text.find_first_not_of(a_DelimiterTwo, Begin);
+ }
else
{
- f >> IItemHealth;
+ End = a_Text.find_first_of(a_DelimiterTwo, Begin);
+ if (End == AString::npos)
+ {
+ PrintParseError(a_Line, Begin, a_DelimiterTwo);
+ return false;
+ }
}
- // Burn time
- int BurnTime;
- f >> c; if( c != '=' ) { bSyntaxError = true; break; }
- f >> BurnTime;
+ // stoi won't throw an exception if the string is alphanumeric, we should check for this
+ if (!DoesStringContainOnlyNumbers(a_Text.substr(Begin, End - Begin)))
+ {
+ PrintParseError(a_Line, Begin, "number");
+ return false;
+ }
+ a_ValueTwo = atoi(a_Text.substr(Begin, End - Begin).c_str());
- // Add to fuel list
- Fuel F;
- F.In = new cItem( (ENUM_ITEM_ID) IItemID, (char)IItemCount, (short)IItemHealth );
- F.BurnTime = BurnTime;
- m_pState->Fuel.push_back( F );
- continue;
+ a_Begin = End + 1; // Jump over delimiter
+ return true;
}
- f.unget();
-
- //////////////////////////////////////////////////////////////////////////
- // Read items
- int IItemID = 0, IItemCount = 0, IItemHealth = 0;
- f >> IItemID;
- f >> c; if( c != ':' ) { bSyntaxError = true; break; }
- f >> IItemCount;
-
- // Optional health
- f >> c;
- if( c != ':' )
- f.unget();
else
{
- f >> IItemHealth;
+ return ReadMandatoryNumber(a_Begin, a_DelimiterTwo, a_Text, a_Line, a_ValueOne, a_IsLastValue);
}
+ }
+
+ return ReadMandatoryNumber(a_Begin, a_DelimiterTwo, a_Text, a_Line, a_ValueOne, a_IsLastValue);
+}
- int CookTime;
- f >> c; if( c != '@' ) { bSyntaxError = true; break; }
- f >> CookTime;
- int OItemID = 0, OItemCount = 0, OItemHealth = 0;
- f >> c; if( c != '=' ) { bSyntaxError = true; break; }
- f >> OItemID;
- f >> c; if( c != ':' ) { bSyntaxError = true; break; }
- f >> OItemCount;
- // Optional health
- f >> c;
- if( c != ':' )
- f.unget();
- else
- {
- f >> OItemHealth;
- }
- // Add to recipe list
- Recipe R;
- R.In = new cItem( (ENUM_ITEM_ID)IItemID, (char)IItemCount, (short)IItemHealth );
- R.Out = new cItem( (ENUM_ITEM_ID)OItemID, (char)OItemCount, (short)OItemHealth );
- R.CookTime = CookTime;
- m_pState->Recipes.push_back( R );
- }
- if (bSyntaxError)
- {
- LOGERROR("ERROR: FurnaceRecipe, syntax error" );
- }
- LOG("Loaded " SIZE_T_FMT " furnace recipes and " SIZE_T_FMT " fuels", m_pState->Recipes.size(), m_pState->Fuel.size());
+
+bool cFurnaceRecipe::DoesStringContainOnlyNumbers(const AString & a_String)
+{
+ // TODO: replace this with std::all_of(a_String.begin(), a_String.end(), isdigit)
+ return (a_String.find_first_not_of("0123456789") == AString::npos);
}