82 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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**	Command & Conquer Red Alert(tm)
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**	Copyright 2025 Electronic Arts Inc.
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**
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**	This program is free software: you can redistribute it and/or modify
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**	it under the terms of the GNU General Public License as published by
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**	the Free Software Foundation, either version 3 of the License, or
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**	(at your option) any later version.
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**
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**	This program is distributed in the hope that it will be useful,
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**	but WITHOUT ANY WARRANTY; without even the implied warranty of
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**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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**	GNU General Public License for more details.
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**
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**	You should have received a copy of the GNU General Public License
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**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
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*/
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/* $Header: /CounterStrike/FACE.H 1     3/03/97 10:24a Joe_bostic $ */
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/***********************************************************************************************
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 ***              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               ***
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 ***********************************************************************************************
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 *                                                                                             *
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 *                 Project Name : Command & Conquer                                            *
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 *                                                                                             *
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 *                    File Name : FACE.H                                                       *
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 *                                                                                             *
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 *                   Programmer : Joe L. Bostic                                                *
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 *                                                                                             *
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 *                   Start Date : 03/08/96                                                     *
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 *                                                                                             *
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 *                  Last Update : March 8, 1996 [JLB]                                          *
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 *                                                                                             *
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 *---------------------------------------------------------------------------------------------*
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 * Functions:                                                                                  *
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 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#ifndef FACE_H
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#define FACE_H
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// Enumerations of the facing values returned from Desired_Facing().
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typedef enum DirType {
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	DIR_MIN=0,
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	DIR_N=0,
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	DIR_NE=1<<5,
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	DIR_E=2<<5,
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	DIR_SE=3<<5,
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	DIR_S=4<<5,
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	DIR_SW=5<<5,
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	DIR_W=6<<5,
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	DIR_NW=7<<5,
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	DIR_MAX=255
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} DirType;
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// Operators that allow simple math with DirType.
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inline DirType operator + (DirType f1, DirType f2)
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{
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	return (DirType)(((int)f1 + (int)f2) & 0x00FF);
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}
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inline DirType operator + (DirType f1, int f2)
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{
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	return (DirType)(((int)f1 + (int)f2) & 0x00FF);
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}
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inline DirType operator - (DirType f1, DirType f2)
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{
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	return (DirType)(((int)f1 - (int)f2) & 0x00FF);
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}
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inline DirType operator - (DirType f1, int f2)
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{
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	return (DirType)(((int)f1 - (int)f2) & 0x00FF);
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}
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// Function prototypes.
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DirType Desired_Facing8(int x1, int y1, int x2, int y2);
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DirType Desired_Facing256(int srcx, int srcy, int dstx, int dsty);
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#endif
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