scummvm/engines/bagel/boflib/fixed.h
2024-05-05 13:27:01 +02:00

105 lines
2.3 KiB
C++

/* 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_BOFLIB_FIXED_H
#define BAGEL_BOFLIB_FIXED_H
#include "bagel/boflib/object.h"
#include "bagel/boflib/misc.h"
namespace Bagel {
class CBofFixed : public CBofObject {
private:
Fixed _lVal;
CBofFixed(const Fixed Arg) {
_lVal = Arg;
}
public:
// Constructors
CBofFixed() {
_lVal = 0L;
}
CBofFixed(const CBofFixed &Arg) {
_lVal = Arg._lVal;
}
CBofFixed(const int Arg) {
_lVal = (Fixed)(((long)(Arg)) << 16);
}
CBofFixed(const double Arg) {
_lVal = (Fixed)(Arg * (1 << 16));
}
// Operators
// inline CBofFixed operator =(const CBofFixed& Arg) const;
CBofFixed operator+(const CBofFixed &Arg) const {
return _lVal + Arg._lVal;
}
CBofFixed operator-(const CBofFixed &Arg) const {
return _lVal - Arg._lVal;
}
CBofFixed operator*(const CBofFixed &Arg) const {
return fixedMultiply(_lVal, Arg._lVal);
}
CBofFixed operator/(const CBofFixed &Arg) const {
return fixedDivide(_lVal, Arg._lVal);
}
CBofFixed operator-=(const CBofFixed &Arg) {
_lVal -= Arg._lVal;
return *this;
}
CBofFixed operator+=(const CBofFixed &Arg) {
_lVal += Arg._lVal;
return *this;
}
CBofFixed operator*=(const CBofFixed &Arg) {
_lVal = _lVal * Arg._lVal;
return *this;
}
CBofFixed operator/=(const CBofFixed &Arg) {
_lVal = _lVal / Arg._lVal;
return *this;
}
CBofFixed operator=(const CBofFixed &Arg) {
_lVal = Arg._lVal;
return *this;
}
// Conversion operators
operator int() {
return (int)(((int32)_lVal) >> 16);
}
};
} // namespace Bagel
#endif