src/util/directiontables.h

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #pragma once
  21
  22 #include "irrlichttypes.h"
  23 #include "irr_v3d.h"
  24
  25 extern const v3s16 g_6dirs[6];
  26
  27 extern const v3s16 g_7dirs[7];
  28
  29 extern const v3s16 g_26dirs[26];
  30
  31 // 26th is (0,0,0)
  32 extern const v3s16 g_27dirs[27];
  33
  34 // all positions around an octablock in sector-first order
  35 extern const v3s16 g_64dirs[64];
  36
  37 extern const u8 wallmounted_to_facedir[6];
  38
  39 extern const v3s16 wallmounted_dirs[8];
  40
  41 extern const v3s16 facedir_dirs[32];
  42
  43 extern const v3s16 fourdir_dirs[4];
  44
  45 /// Direction in the 6D format. g_27dirs contains corresponding vectors.
  46 /// Here P means Positive, N stands for Negative.
  47 enum Direction6D {
  48 // 0
  49         D6D_ZP,
  50         D6D_YP,
  51         D6D_XP,
  52         D6D_ZN,
  53         D6D_YN,
  54         D6D_XN,
  55 // 6
  56         D6D_XN_YP,
  57         D6D_XP_YP,
  58         D6D_YP_ZP,
  59         D6D_YP_ZN,
  60         D6D_XN_ZP,
  61         D6D_XP_ZP,
  62         D6D_XN_ZN,
  63         D6D_XP_ZN,
  64         D6D_XN_YN,
  65         D6D_XP_YN,
  66         D6D_YN_ZP,
  67         D6D_YN_ZN,
  68 // 18
  69         D6D_XN_YP_ZP,
  70         D6D_XP_YP_ZP,
  71         D6D_XN_YP_ZN,
  72         D6D_XP_YP_ZN,
  73         D6D_XN_YN_ZP,
  74         D6D_XP_YN_ZP,
  75         D6D_XN_YN_ZN,
  76         D6D_XP_YN_ZN,
  77 // 26
  78         D6D,
  79
  80 // aliases
  81         D6D_BACK   = D6D_ZP,
  82         D6D_TOP    = D6D_YP,
  83         D6D_RIGHT  = D6D_XP,
  84         D6D_FRONT  = D6D_ZN,
  85         D6D_BOTTOM = D6D_YN,
  86         D6D_LEFT   = D6D_XN,
  87 };
  88
  89 /// Direction in the wallmounted format.
  90 /// P is Positive, N is Negative.
  91 enum DirectionWallmounted {
  92         DWM_YP,
  93         DWM_YN,
  94         DWM_XP,
  95         DWM_XN,
  96         DWM_ZP,
  97         DWM_ZN,
  98 };