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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 "main.h" // for g_settings
#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));
content_t c_snow = ndef->getId("snow");
if(ndef->get(n_top).light_propagates &&
!ndef->get(n_top).isLiquid() &&
n_top.getLightBlend(env->getDayNightRatio(), ndef) >= 13)
{
if(c_snow != CONTENT_IGNORE && n_top.getContent() == c_snow)
n.setContent(ndef->getId("dirt_with_snow"));
else
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:
content_t c_junglesapling;
public:
MakeTreesFromSaplingsABM(ServerEnvironment *env, INodeDefManager *nodemgr) {
c_junglesapling = nodemgr->getId("junglesapling");
}
virtual std::set<std::string> getTriggerContents()
{
std::set<std::string> s;
s.insert("sapling");
s.insert("junglesapling");
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();
MapNode n_below = map->getNodeNoEx(p - v3s16(0, 1, 0));
if (!((ItemGroupList) ndef->get(n_below).groups)["soil"])
return;
bool is_jungle_tree = n.getContent() == c_junglesapling;
actionstream <<"A " << (is_jungle_tree ? "jungle " : "")
<< "sapling grows into a tree at "
<< PP(p) << std::endl;
std::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));
if (is_jungle_tree) {
treegen::make_jungletree(vmanip, tree_p, ndef, myrand());
} else {
bool is_apple_tree = myrand() % 4 == 0;
treegen::make_tree(vmanip, tree_p, is_apple_tree, ndef, myrand());
}
vmanip.blitBackAll(&modified_blocks);
// update lighting
std::map<v3s16, MapBlock*> lighting_modified_blocks;
lighting_modified_blocks.insert(modified_blocks.begin(), modified_blocks.end());
map->updateLighting(lighting_modified_blocks, modified_blocks);
// Send a MEET_OTHER event
MapEditEvent event;
event.type = MEET_OTHER;
// event.modified_blocks.insert(modified_blocks.begin(), modified_blocks.end());
for(std::map<v3s16, MapBlock*>::iterator
i = modified_blocks.begin();
i != modified_blocks.end(); ++i)
{
event.modified_blocks.insert(i->first);
}
map->dispatchEvent(&event);
}
};
class LiquidFlowABM : public ActiveBlockModifier
{
private:
std::set<std::string> contents;
public:
LiquidFlowABM(ServerEnvironment *env, INodeDefManager *nodemgr)
{
std::set<content_t> liquids;
nodemgr->getIds("group:liquid", liquids);
for(std::set<content_t>::const_iterator k = liquids.begin(); k != liquids.end(); k++)
contents.insert(nodemgr->get(*k).liquid_alternative_flowing);
}
virtual std::set<std::string> getTriggerContents()
{
return contents;
}
virtual float getTriggerInterval()
{ return 10.0; }
virtual u32 getTriggerChance()
{ return 10; }
virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n)
{
ServerMap *map = &env->getServerMap();
if (map->transforming_liquid_size() > 500)
return;
map->transforming_liquid_add(p);
//if ((*map).m_transforming_liquid.size() < 500) (*map).m_transforming_liquid.push_back(p);
}
};
class LiquidDropABM : public ActiveBlockModifier
{
private:
std::set<std::string> contents;
public:
LiquidDropABM(ServerEnvironment *env, INodeDefManager *nodemgr)
{
std::set<content_t> liquids;
nodemgr->getIds("group:liquid", liquids);
for(std::set<content_t>::const_iterator k = liquids.begin(); k != liquids.end(); k++)
contents.insert(nodemgr->get(*k).liquid_alternative_source);
}
virtual std::set<std::string> getTriggerContents()
{ return contents; }
virtual std::set<std::string> getRequiredNeighbors()
{
std::set<std::string> neighbors;
neighbors.insert("mapgen_air");
return neighbors;
}
virtual float getTriggerInterval()
{ return 20.0; }
virtual u32 getTriggerChance()
{ return 10; }
virtual void trigger(ServerEnvironment *env, v3s16 p, MapNode n)
{
ServerMap *map = &env->getServerMap();
if (map->transforming_liquid_size() > 500)
return;
if ( map->getNodeNoEx(p - v3s16(0, 1, 0 )).getContent() != CONTENT_AIR // below
&& map->getNodeNoEx(p - v3s16(1, 0, 0 )).getContent() != CONTENT_AIR // right
&& map->getNodeNoEx(p - v3s16(-1, 0, 0 )).getContent() != CONTENT_AIR // left
&& map->getNodeNoEx(p - v3s16(0, 0, 1 )).getContent() != CONTENT_AIR // back
&& map->getNodeNoEx(p - v3s16(0, 0, -1)).getContent() != CONTENT_AIR // front
)
return;
map->transforming_liquid_add(p);
}
};
void add_legacy_abms(ServerEnvironment *env, INodeDefManager *nodedef)
{
env->addActiveBlockModifier(new GrowGrassABM());
env->addActiveBlockModifier(new RemoveGrassABM());
env->addActiveBlockModifier(new MakeTreesFromSaplingsABM(env, nodedef));
if (g_settings->getBool("liquid_finite")) {
env->addActiveBlockModifier(new LiquidFlowABM(env, nodedef));
env->addActiveBlockModifier(new LiquidDropABM(env, nodedef));
}
}
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