CnC_Red_Alert/CODE/FACING.H

81 lines
3.7 KiB
C++

/*
** Command & Conquer Red Alert(tm)
** Copyright 2025 Electronic Arts Inc.
**
** 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/>.
*/
/* $Header: /CounterStrike/FACING.H 1 3/03/97 10:24a Joe_bostic $ */
/***********************************************************************************************
*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
***********************************************************************************************
* *
* Project Name : Command & Conquer *
* *
* File Name : FACING.H *
* *
* Programmer : Joe L. Bostic *
* *
* Start Date : 03/21/95 *
* *
* Last Update : March 21, 1995 [JLB] *
* *
*---------------------------------------------------------------------------------------------*
* Functions: *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#ifndef FACING_H
#define FACING_H
/*
** This is a general facing handler class. It is used in those cases where facing needs to be
** kept track of, but there could also be an associated desired facing. The current facing
** is supposed to transition to the desired state over time. Using this class facilitates this
** processing as well as isolating the rest of the code from the internals.
*/
class FacingClass
{
public:
FacingClass(void);
FacingClass(DirType dir) : CurrentFacing(dir), DesiredFacing(dir) {};
FacingClass(NoInitClass const & ) {};
operator DirType (void) const {return(CurrentFacing);};
DirType Current(void) const {return(CurrentFacing);};
DirType Desired(void) const {return(DesiredFacing);};
int Set_Desired(DirType facing);
int Set_Current(DirType facing);
void Set(DirType facing) {
Set_Current(facing);
Set_Desired(facing);
};
DirType Get(void) const { return CurrentFacing; }
int Is_Rotating(void) const {return (DesiredFacing != CurrentFacing);};
int Difference(void) const {return (int)(signed char)((int)DesiredFacing - (int)CurrentFacing);}
int Difference(DirType facing) const {return (int)(signed char)((int)facing - (int)CurrentFacing);}
int Rotation_Adjust(int rate);
private:
DirType CurrentFacing;
DirType DesiredFacing;
};
#endif