Pyrogenesis  trunk
Position.h
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1 /* Copyright (C) 2021 Wildfire Games.
2  * This file is part of 0 A.D.
3  *
4  * 0 A.D. is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation, either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * 0 A.D. is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #ifndef INCLUDED_POSITION
19 #define INCLUDED_POSITION
20 
21 #include "maths/Fixed.h"
22 
23 /**
24  * @file
25  * Entity coordinate types
26  *
27  * The basic unit is the "meter".
28  * To support deterministic computation across CPU architectures and compilers and
29  * optimisation settings, the C++ simulation code must not use floating-point arithmetic.
30  * We therefore use a fixed-point datatype for representing world positions.
31  */
32 
33 /**
34  * Positions and distances (measured in metres)
35  */
37 
38 /**
39  * Rotations (measured in radians)
40  */
42 
43 #endif // INCLUDED_POSITION
A simple fixed-point number class.
Definition: Fixed.h:119
CFixed_15_16 entity_pos_t
Positions and distances (measured in metres)
Definition: Position.h:36
CFixed_15_16 entity_angle_t
Rotations (measured in radians)
Definition: Position.h:41