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| -rw-r--r-- | src/mapblock_nodemod.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/mapblock_nodemod.h b/src/mapblock_nodemod.h new file mode 100644 index 000000000..4952df107 --- /dev/null +++ b/src/mapblock_nodemod.h @@ -0,0 +1,114 @@ +/* +Minetest-c55 +Copyright (C) 2010 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 General Public License as published by +the Free Software Foundation; either version 2 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 General Public License for more details. + +You should have received a copy of the GNU 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. +*/ + +#ifndef MAPBLOCK_NODEMOD_HEADER +#define MAPBLOCK_NODEMOD_HEADER + +enum NodeModType +{ + NODEMOD_NONE, + NODEMOD_CHANGECONTENT, //param is content id + NODEMOD_CRACK // param is crack progression +}; + +struct NodeMod +{ + NodeMod(enum NodeModType a_type=NODEMOD_NONE, u16 a_param=0) + { + type = a_type; + param = a_param; + } + bool operator==(const NodeMod &other) + { + return (type == other.type && param == other.param); + } + enum NodeModType type; + u16 param; +}; + +class NodeModMap +{ +public: + /* + returns true if the mod was different last time + */ + bool set(v3s16 p, const NodeMod &mod) + { + // See if old is different, cancel if it is not different. + core::map<v3s16, NodeMod>::Node *n = m_mods.find(p); + if(n) + { + NodeMod old = n->getValue(); + if(old == mod) + return false; + + n->setValue(mod); + } + else + { + m_mods.insert(p, mod); + } + + return true; + } + // Returns true if there was one + bool get(v3s16 p, NodeMod *mod) + { + core::map<v3s16, NodeMod>::Node *n; + n = m_mods.find(p); + if(n == NULL) + return false; + if(mod) + *mod = n->getValue(); + return true; + } + bool clear(v3s16 p) + { + if(m_mods.find(p)) + { + m_mods.remove(p); + return true; + } + return false; + } + bool clear() + { + if(m_mods.size() == 0) + return false; + m_mods.clear(); + return true; + } + void copy(NodeModMap &dest) + { + dest.m_mods.clear(); + + for(core::map<v3s16, NodeMod>::Iterator + i = m_mods.getIterator(); + i.atEnd() == false; i++) + { + dest.m_mods.insert(i.getNode()->getKey(), i.getNode()->getValue()); + } + } + +private: + core::map<v3s16, NodeMod> m_mods; +}; + +#endif + |