BRNSystems/minetest
1
0
Fork 0
forked from Mirrorlandia_minetest/minetest
Code Pull Requests 1 Activity

Treegen update. Some new symbols. Speed up code a bit.

Browse Source
This commit is contained in:
RealBadAngel 2013-01-23 04:57:49 +01:00 committed by Perttu Ahola
parent 0a27e81704
commit 1163fdfa11
3 changed files with 112 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
doc/lua_api.txt
View File

@ -1098,7 +1098,9 @@ treedef={
Key for Special L-System Symbols used in Axioms
G - move forward one unit with the pen up
F - move forward one unit with the pen down drawing trunks and branches
f - move forward one unit with the pen down drawing leaves
f - move forward one unit with the pen down drawing leaves (100% chance)
T - move forward one unit with the pen down drawing trunks only
R - move forward one unit with the pen down placing fruit
A - replace with rules set A
B - replace with rules set B
C - replace with rules set C

122
src/treegen.cpp
View File

@ -1,7 +1,7 @@
/*
Minetest-c55
Copyright (C) 2010-2012 celeron55, Perttu Ahola <celeron55@gmail.com>,
2012 RealBadAngel, Maciej Kasatkin <mk@realbadangel.pl>
2012-2013 RealBadAngel, Maciej Kasatkin <mk@realbadangel.pl>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
@ -118,7 +118,7 @@ void spawn_ltree (ServerEnvironment *env, v3s16 p0, INodeDefManager *ndef, TreeD
core::map<v3s16, MapBlock*> modified_blocks;
ManualMapVoxelManipulator vmanip(map);
v3s16 tree_blockp = getNodeBlockPos(p0);
vmanip.initialEmerge(tree_blockp - v3s16(1,1,1), tree_blockp + v3s16(1,2,1));
vmanip.initialEmerge(tree_blockp - v3s16(1,1,1), tree_blockp + v3s16(1,3,1));
make_ltree (vmanip, p0, ndef, tree_definition);
vmanip.blitBackAll(&modified_blocks);
@ -170,7 +170,10 @@ void make_ltree(ManualMapVoxelManipulator &vmanip, v3s16 p0, INodeDefManager *nd
//initialize rotation matrix, position and stacks for branches
core::matrix4 rotation;
rotation = setRotationAxisRadians(rotation, M_PI/2,v3f(0,0,1));
v3f position = v3f(0,0,0);
v3f position;
position.X = p0.X;
position.Y = p0.Y;
position.Z = p0.Z;
std::stack <core::matrix4> stack_orientation;
std::stack <v3f> stack_position;
@ -223,16 +226,16 @@ void make_ltree(ManualMapVoxelManipulator &vmanip, v3s16 p0, INodeDefManager *nd
//make sure tree is not floating in the air
if (tree_definition.trunk_type == "double")
{
make_tree_node_placement(vmanip,v3f(p0.X+position.X+1,p0.Y+position.Y-1,p0.Z+position.Z),dirtnode);
make_tree_node_placement(vmanip,v3f(p0.X+position.X,p0.Y+position.Y-1,p0.Z+position.Z+1),dirtnode);
make_tree_node_placement(vmanip,v3f(p0.X+position.X+1,p0.Y+position.Y-1,p0.Z+position.Z+1),dirtnode);
tree_node_placement(vmanip,v3f(position.X+1,position.Y-1,position.Z),dirtnode);
tree_node_placement(vmanip,v3f(position.X,position.Y-1,position.Z+1),dirtnode);
tree_node_placement(vmanip,v3f(position.X+1,position.Y-1,position.Z+1),dirtnode);
}
if (tree_definition.trunk_type == "crossed")
{
make_tree_node_placement(vmanip,v3f(p0.X+position.X+1,p0.Y+position.Y-1,p0.Z+position.Z),dirtnode);
make_tree_node_placement(vmanip,v3f(p0.X+position.X-1,p0.Y+position.Y-1,p0.Z+position.Z),dirtnode);
make_tree_node_placement(vmanip,v3f(p0.X+position.X,p0.Y+position.Y-1,p0.Z+position.Z+1),dirtnode);
make_tree_node_placement(vmanip,v3f(p0.X+position.X,p0.Y+position.Y-1,p0.Z+position.Z-1),dirtnode);
tree_node_placement(vmanip,v3f(position.X+1,position.Y-1,position.Z),dirtnode);
tree_node_placement(vmanip,v3f(position.X-1,position.Y-1,position.Z),dirtnode);
tree_node_placement(vmanip,v3f(position.X,position.Y-1,position.Z+1),dirtnode);
tree_node_placement(vmanip,v3f(position.X,position.Y-1,position.Z-1),dirtnode);
}
/* build tree out of generated axiom
@ -241,7 +244,9 @@ void make_ltree(ManualMapVoxelManipulator &vmanip, v3s16 p0, INodeDefManager *nd
G - move forward one unit with the pen up
F - move forward one unit with the pen down drawing trunks and branches
f - move forward one unit with the pen down drawing leaves
f - move forward one unit with the pen down drawing leaves (100% chance)
T - move forward one unit with the pen down drawing trunks only
R - move forward one unit with the pen down placing fruit
A - replace with rules set A
B - replace with rules set B
C - replace with rules set C
@ -275,35 +280,54 @@ void make_ltree(ManualMapVoxelManipulator &vmanip, v3s16 p0, INodeDefManager *nd
dir = transposeMatrix(rotation,dir);
position+=dir;
break;
case 'T':
tree_trunk_placement(vmanip,v3f(position.X,position.Y,position.Z),tree_definition);
if (tree_definition.trunk_type == "double" && !tree_definition.thin_branches)
{
tree_trunk_placement(vmanip,v3f(position.X+1,position.Y,position.Z),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X,position.Y,position.Z+1),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X+1,position.Y,position.Z+1),tree_definition);
}
if (tree_definition.trunk_type == "crossed" && !tree_definition.thin_branches)
{
tree_trunk_placement(vmanip,v3f(position.X+1,position.Y,position.Z),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X-1,position.Y,position.Z),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X,position.Y,position.Z+1),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X,position.Y,position.Z-1),tree_definition);
}
dir = v3f(1,0,0);
dir = transposeMatrix(rotation,dir);
position+=dir;
break;
case 'F':
make_tree_trunk_placement(vmanip,v3f(p0.X+position.X,p0.Y+position.Y,p0.Z+position.Z),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X,position.Y,position.Z),tree_definition);
if ((stack_orientation.empty() && tree_definition.trunk_type == "double") ||
(!stack_orientation.empty() && tree_definition.trunk_type == "double" && !tree_definition.thin_branches))
{
make_tree_trunk_placement(vmanip,v3f(p0.X+position.X+1,p0.Y+position.Y,p0.Z+position.Z),tree_definition);
make_tree_trunk_placement(vmanip,v3f(p0.X+position.X,p0.Y+position.Y,p0.Z+position.Z+1),tree_definition);
make_tree_trunk_placement(vmanip,v3f(p0.X+position.X+1,p0.Y+position.Y,p0.Z+position.Z+1),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X+1,position.Y,position.Z),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X,position.Y,position.Z+1),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X+1,position.Y,position.Z+1),tree_definition);
}
if ((stack_orientation.empty() && tree_definition.trunk_type == "crossed") ||
(!stack_orientation.empty() && tree_definition.trunk_type == "crossed" && !tree_definition.thin_branches))
{
make_tree_trunk_placement(vmanip,v3f(p0.X+position.X+1,p0.Y+position.Y,p0.Z+position.Z),tree_definition);
make_tree_trunk_placement(vmanip,v3f(p0.X+position.X-1,p0.Y+position.Y,p0.Z+position.Z),tree_definition);
make_tree_trunk_placement(vmanip,v3f(p0.X+position.X,p0.Y+position.Y,p0.Z+position.Z+1),tree_definition);
make_tree_trunk_placement(vmanip,v3f(p0.X+position.X,p0.Y+position.Y,p0.Z+position.Z-1),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X+1,position.Y,position.Z),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X-1,position.Y,position.Z),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X,position.Y,position.Z+1),tree_definition);
tree_trunk_placement(vmanip,v3f(position.X,position.Y,position.Z-1),tree_definition);
}
if (stack_orientation.empty() == false)
{
s16 size = 1;
for(x=-size; x<size+1; x++)
for(y=-size; y<size+1; y++)
for(z=-size; z<size+1; z++)
for(x=-size; x<=size; x++)
for(y=-size; y<=size; y++)
for(z=-size; z<=size; z++)
if (abs(x) == size && abs(y) == size && abs(z) == size)
{
make_tree_leaves_placement(vmanip,v3f(p0.X+position.X+x+1,p0.Y+position.Y+y,p0.Z+position.Z+z),tree_definition);
make_tree_leaves_placement(vmanip,v3f(p0.X+position.X+x-1,p0.Y+position.Y+y,p0.Z+position.Z+z),tree_definition);
make_tree_leaves_placement(vmanip,v3f(p0.X+position.X+x,p0.Y+position.Y+y,p0.Z+position.Z+z+1),tree_definition);
make_tree_leaves_placement(vmanip,v3f(p0.X+position.X+x,p0.Y+position.Y+y,p0.Z+position.Z+z-1),tree_definition);
tree_leaves_placement(vmanip,v3f(position.X+x+1,position.Y+y,position.Z+z),tree_definition);
tree_leaves_placement(vmanip,v3f(position.X+x-1,position.Y+y,position.Z+z),tree_definition);
tree_leaves_placement(vmanip,v3f(position.X+x,position.Y+y,position.Z+z+1),tree_definition);
tree_leaves_placement(vmanip,v3f(position.X+x,position.Y+y,position.Z+z-1),tree_definition);
}
}
dir = v3f(1,0,0);
@ -311,12 +335,19 @@ void make_ltree(ManualMapVoxelManipulator &vmanip, v3s16 p0, INodeDefManager *nd
position+=dir;
break;
case 'f':
make_tree_leaves_placement(vmanip,v3f(p0.X+position.X,p0.Y+position.Y,p0.Z+position.Z),tree_definition);
tree_single_leaves_placement(vmanip,v3f(position.X,position.Y,position.Z),tree_definition);
dir = v3f(1,0,0);
dir = transposeMatrix(rotation,dir);
position+=dir;
break;
// turtle commands
case 'R':
tree_fruit_placement(vmanip,v3f(position.X,position.Y,position.Z),tree_definition);
dir = v3f(1,0,0);
dir = transposeMatrix(rotation,dir);
position+=dir;
break;
// turtle orientation commands
case '[':
stack_orientation.push(rotation);
stack_position.push(position);
@ -363,7 +394,7 @@ void make_ltree(ManualMapVoxelManipulator &vmanip, v3s16 p0, INodeDefManager *nd
}
}
void make_tree_node_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
void tree_node_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
MapNode node)
{
v3s16 p1 = v3s16(myround(p0.X),myround(p0.Y),myround(p0.Z));
@ -376,7 +407,7 @@ void make_tree_node_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
vmanip.m_data[vmanip.m_area.index(p1)] = node;
}
void make_tree_trunk_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
void tree_trunk_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
TreeDef &tree_definition)
{
v3s16 p1 = v3s16(myround(p0.X),myround(p0.Y),myround(p0.Z));
@ -389,7 +420,7 @@ void make_tree_trunk_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
vmanip.m_data[vmanip.m_area.index(p1)] = tree_definition.trunknode;
}
void make_tree_leaves_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
void tree_leaves_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
TreeDef &tree_definition)
{
MapNode leavesnode=tree_definition.leavesnode;
@ -413,6 +444,35 @@ void make_tree_leaves_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
vmanip.m_data[vmanip.m_area.index(p1)] = leavesnode;
}
void tree_single_leaves_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
TreeDef &tree_definition)
{
MapNode leavesnode=tree_definition.leavesnode;
if (myrand_range(1,100) > 100-tree_definition.leaves2_chance)
leavesnode=tree_definition.leaves2node;
v3s16 p1 = v3s16(myround(p0.X),myround(p0.Y),myround(p0.Z));
if(vmanip.m_area.contains(p1) == false)
return;
u32 vi = vmanip.m_area.index(p1);
if(vmanip.m_data[vi].getContent() != CONTENT_AIR
&& vmanip.m_data[vi].getContent() != CONTENT_IGNORE)
return;
vmanip.m_data[vmanip.m_area.index(p1)] = leavesnode;
}
void tree_fruit_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
TreeDef &tree_definition)
{
v3s16 p1 = v3s16(myround(p0.X),myround(p0.Y),myround(p0.Z));
if(vmanip.m_area.contains(p1) == false)
return;
u32 vi = vmanip.m_area.index(p1);
if(vmanip.m_data[vi].getContent() != CONTENT_AIR
&& vmanip.m_data[vi].getContent() != CONTENT_IGNORE)
return;
vmanip.m_data[vmanip.m_area.index(p1)] = tree_definition.fruitnode;
}
irr::core::matrix4 setRotationAxisRadians(irr::core::matrix4 M, double angle, v3f axis)
{
double c = cos(angle);

15
src/treegen.h
View File

@ -1,7 +1,7 @@
/*
Minetest-c55
Copyright (C) 2010-2012 celeron55, Perttu Ahola <celeron55@gmail.com>,
2012 RealBadAngel, Maciej Kasatkin <mk@realbadangel.pl>
2012-2013 RealBadAngel, Maciej Kasatkin <mk@realbadangel.pl>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
@ -57,14 +57,19 @@ int fruit_chance;
void make_ltree(ManualMapVoxelManipulator &vmanip, v3s16 p0, INodeDefManager *ndef,
TreeDef tree_definition);
// Spawn L-systems tree from LUA
void spawn_ltree (ServerEnvironment *env, v3s16 p0, INodeDefManager *ndef, TreeDef tree_definition);
void spawn_ltree (ServerEnvironment *env, v3s16 p0, INodeDefManager *ndef,
TreeDef tree_definition);
// L-System tree gen helper functions
void make_tree_node_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
void tree_node_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
MapNode node);
void make_tree_trunk_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
void tree_trunk_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
TreeDef &tree_definition);
void make_tree_leaves_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
void tree_leaves_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
TreeDef &tree_definition);
void tree_single_leaves_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
TreeDef &tree_definition);
void tree_fruit_placement(ManualMapVoxelManipulator &vmanip, v3f p0,
TreeDef &tree_definition);
irr::core::matrix4 setRotationAxisRadians(irr::core::matrix4 M, double angle,v3f axis);