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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "content_abm.h"
#include "environment.h"
#include "gamedef.h"
#include "nodedef.h"
#include "content_sao.h"
#include "settings.h"
#include "mapblock.h" // For getNodeBlockPos
#include "treegen.h" // For treegen::make_tree
#include "map.h"
#define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
class GrowGrassABM : public ActiveBlockModifier
{
private:
public:
virtual std::set<std::string> getTriggerContents()
{
std::set<std::string> s;
s.insert("mapgen_dirt");
return s;
}
virtual float getTriggerInterval()
{ return 2.0; }
virtual u32 getTriggerChance()
{ return 200; }
virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n)
{
INodeDefManager *ndef = env->getGameDef()->ndef();
ServerMap *map = &env->getServerMap();
MapNode n_top = map->getNodeNoEx(p+v3s16(0,1,0));
if(ndef->get(n_top).light_propagates &&
!ndef->get(n_top).isLiquid() &&
n_top.getLightBlend(env->getDayNightRatio(), ndef) >= 13)
{
n.setContent(ndef->getId("mapgen_dirt_with_grass"));
map->addNodeWithEvent(p, n);
}
}
};
class RemoveGrassABM : public ActiveBlockModifier
{
private:
public:
virtual std::set<std::string> getTriggerContents()
{
std::set<std::string> s;
s.insert("mapgen_dirt_with_grass");
return s;
}
virtual float getTriggerInterval()
{ return 2.0; }
virtual u32 getTriggerChance()
{ return 20; }
virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n)
{
INodeDefManager *ndef = env->getGameDef()->ndef();
ServerMap *map = &env->getServerMap();
MapNode n_top = map->getNodeNoEx(p+v3s16(0,1,0));
if((!ndef->get(n_top).light_propagates &&
n_top.getContent() != CONTENT_IGNORE) ||
ndef->get(n_top).isLiquid())
{
n.setContent(ndef->getId("mapgen_dirt"));
map->addNodeWithEvent(p, n);
}
}
};
class MakeTreesFromSaplingsABM : public ActiveBlockModifier
{
private:
public:
virtual std::set<std::string> getTriggerContents()
{
std::set<std::string> s;
s.insert("sapling");
return s;
}
virtual float getTriggerInterval()
{ return 10.0; }
virtual u32 getTriggerChance()
{ return 50; }
virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n,
u32 active_object_count, u32 active_object_count_wider)
{
INodeDefManager *ndef = env->getGameDef()->ndef();
ServerMap *map = &env->getServerMap();
actionstream<<"A sapling grows into a tree at "
<<PP(p)<<std::endl;
core::map<v3s16, MapBlock*> modified_blocks;
v3s16 tree_p = p;
ManualMapVoxelManipulator vmanip(map);
v3s16 tree_blockp = getNodeBlockPos(tree_p);
vmanip.initialEmerge(tree_blockp - v3s16(1,1,1), tree_blockp + v3s16(1,1,1));
bool is_apple_tree = myrand()%4 == 0;
treegen::make_tree(vmanip, tree_p, is_apple_tree, ndef, myrand());
vmanip.blitBackAll(&modified_blocks);
// update lighting
core::map<v3s16, MapBlock*> lighting_modified_blocks;
for(core::map<v3s16, MapBlock*>::Iterator
i = modified_blocks.getIterator();
i.atEnd() == false; i++)
{
lighting_modified_blocks.insert(i.getNode()->getKey(), i.getNode()->getValue());
}
map->updateLighting(lighting_modified_blocks, modified_blocks);
// Send a MEET_OTHER event
MapEditEvent event;
event.type = MEET_OTHER;
for(core::map<v3s16, MapBlock*>::Iterator
i = modified_blocks.getIterator();
i.atEnd() == false; i++)
{
v3s16 p = i.getNode()->getKey();
event.modified_blocks.insert(p, true);
}
map->dispatchEvent(&event);
}
};
void add_legacy_abms(ServerEnvironment *env, INodeDefManager *nodedef)
{
env->addActiveBlockModifier(new GrowGrassABM());
env->addActiveBlockModifier(new RemoveGrassABM());
env->addActiveBlockModifier(new MakeTreesFromSaplingsABM());
}
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