-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());