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engines/bagel/spacebar/baglib/var.h

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+
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef BAGEL_BAGLIB_VAR_H
+#define BAGEL_BAGLIB_VAR_H
+
+#include "bagel/spacebar/baglib/parse_object.h"
+#include "bagel/boflib/string.h"
+#include "bagel/spacebar/boflib/list.h"
+
+namespace Bagel {
+namespace SpaceBar {
+
+class CBagVar : public CBagParseObject, public CBofObject {
+public:
+	enum VARTYPE {
+		STRING = 0, NUMBER = 1, BOOLEAN = 2
+	};
+
+private:
+	CBofString _sVarName;  // Name of the variable
+	CBofString _sVarValue; // Value of the variable if not a reference
+	VARTYPE _xVarType;     // Type of variable, string
+	bool _bGlobal : 1;     // Is the variable a constant
+	bool _bConstant : 1;   // Is the variable a constant
+	bool _bReference : 1;  // Is the variable a reference to an objects state date
+	bool _bTimer : 1;      // Is the variable updated on object timer events
+	bool _bRandom : 1;     // Is the variable updated as a random number
+	bool _freeze = false;
+
+public:
+	CBagVar();
+	CBagVar(const CBofString &sName, const CBofString &sValue, bool bAddToList);
+	virtual ~CBagVar();
+
+	ParseCodes setInfo(CBagIfstream &) override;
+
+	const CBofString &getName() {
+		return _sVarName;
+	}
+	//  const CBofString&   getValue()      { return _sVarValue; }
+	const CBofString &getValue();
+	int getNumValue();
+	bool isGlobal() {
+		return _bGlobal;
+	}
+	bool isConstant() {
+		return _bConstant;
+	}
+	bool isNumeric() {
+		return _xVarType == NUMBER;
+	}
+	bool isBoolean() {
+		return _xVarType == BOOLEAN;
+	}
+	bool isString() {
+		return _xVarType == STRING;
+	}
+	bool isReference() {
+		return _bReference;
+	}
+	bool isTimer() {
+		return _bTimer;
+	}
+	bool isRandom() {
+		return _bRandom;
+	}
+	bool isFrozen() const {
+		return _freeze;
+	}
+	VARTYPE getType() {
+		return _xVarType;
+	}
+
+	// Whenever setting the name, add this object to the hash table.
+	void setName(const CBofString &s);
+	void setValue(const CBofString &s);
+	void setValue(int nVal);
+	void setBoolValue(bool bVal);
+	void setGlobal(bool bVal = true) {
+		_bGlobal = bVal;
+	}
+	void setConstant(bool bVal = true) {
+		_bConstant = bVal;
+	}
+	void setReference(bool bVal = true) {
+		_bReference = bVal;
+	}
+	void setTimer(bool bVal = true) {
+		_bTimer = bVal;
+	}
+	void setRandom(bool bVal = true) {
+		_bRandom = bVal;
+	}
+	void setFreeze(bool bVal = true) {
+		_freeze = bVal;
+	}
+	void setString() {
+		_xVarType = STRING;
+	}
+	void setNumeric() {
+		_xVarType = NUMBER;
+	}
+	void setBoolean() {
+		_xVarType = BOOLEAN;
+	}
+
+	void increment();
+};
+
+//  This could be templated with the storage device manager
+#define VAR_HASH_TABLE_SIZE 131
+
+class CBagVarManager : public CBagParseObject, public CBofObject {
+private:
+	static int nVarMngrs;
+	CBofList<CBagVar *> _xVarList;
+
+public:
+	CBagVarManager();
+	virtual ~CBagVarManager();
+	static void initialize();
+
+	ErrorCode registerVariable(CBagVar *pVar);
+	ErrorCode unRegisterVariable(CBagVar *pVar);
+	ErrorCode updateRegistration();
+	ErrorCode releaseVariables(bool bIncludeGlobals = true);
+
+	ErrorCode incrementTimers();
+	CBagVar *getVariable(const CBofString &sName);
+	CBagVar *getVariable(int i) {
+		return _xVarList[i];
+	}
+	int getNumVars() {
+		return _xVarList.getCount();
+	}
+
+	// Use a hash table to lookup variables.
+	CBofList<CBagVar *> _xVarHashList[VAR_HASH_TABLE_SIZE];
+};
+
+} // namespace SpaceBar
+} // namespace Bagel
+
+#endif