src/treegen.h

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>,
   4                           2012-2013 RealBadAngel, Maciej Kasatkin <mk@realbadangel.pl>
   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 #ifndef TREEGEN_HEADER
  21 #define TREEGEN_HEADER
  22
  23 #include <matrix4.h>
  24 #include "noise.h"
  25
  26 class MMVManip;
  27 class INodeDefManager;
  28 class ServerEnvironment;
  29
  30
  31 namespace treegen {
  32
  33         enum error {
  34                 SUCCESS,
  35                 UNBALANCED_BRACKETS
  36         };
  37
  38         struct TreeDef {
  39                 std::string initial_axiom;
  40                 std::string rules_a;
  41                 std::string rules_b;
  42                 std::string rules_c;
  43                 std::string rules_d;
  44
  45                 MapNode trunknode;
  46                 MapNode leavesnode;
  47                 MapNode leaves2node;
  48
  49                 int leaves2_chance;
  50                 int angle;
  51                 int iterations;
  52                 int iterations_random_level;
  53                 std::string trunk_type;
  54                 bool thin_branches;
  55                 MapNode fruitnode;
  56                 int fruit_chance;
  57                 s32 seed;
  58                 bool explicit_seed;
  59         };
  60
  61         // Add default tree
  62         void make_tree(MMVManip &vmanip, v3s16 p0,
  63                 bool is_apple_tree, INodeDefManager *ndef, s32 seed);
  64         // Add jungle tree
  65         void make_jungletree(MMVManip &vmanip, v3s16 p0,
  66                 INodeDefManager *ndef, s32 seed);
  67         // Add pine tree
  68         void make_pine_tree(MMVManip &vmanip, v3s16 p0,
  69                 INodeDefManager *ndef, s32 seed);
  70
  71         // Add L-Systems tree (used by engine)
  72         treegen::error make_ltree(MMVManip &vmanip, v3s16 p0, INodeDefManager *ndef,
  73                 TreeDef tree_definition);
  74         // Spawn L-systems tree from LUA
  75         treegen::error spawn_ltree (ServerEnvironment *env, v3s16 p0, INodeDefManager *ndef,
  76                 TreeDef tree_definition);
  77
  78         // L-System tree gen helper functions
  79         void tree_node_placement(MMVManip &vmanip, v3f p0,
  80                 MapNode node);
  81         void tree_trunk_placement(MMVManip &vmanip, v3f p0,
  82                 TreeDef &tree_definition);
  83         void tree_leaves_placement(MMVManip &vmanip, v3f p0,
  84                 PseudoRandom ps, TreeDef &tree_definition);
  85         void tree_single_leaves_placement(MMVManip &vmanip, v3f p0,
  86                 PseudoRandom ps, TreeDef &tree_definition);
  87         void tree_fruit_placement(MMVManip &vmanip, v3f p0,
  88                 TreeDef &tree_definition);
  89         irr::core::matrix4 setRotationAxisRadians(irr::core::matrix4 M, double angle, v3f axis);
  90
  91         v3f transposeMatrix(irr::core::matrix4 M ,v3f v);
  92
  93 }; // namespace treegen
  94 #endif