/* Minetest-c55 Copyright (C) 2011 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. */ #include "tool.h" #include "utility.h" #include "itemdef.h" // For itemgroup_get() #include "log.h" #include "inventory.h" void ToolCapabilities::serialize(std::ostream &os) const { writeU8(os, 0); // version writeF1000(os, full_punch_interval); writeS16(os, max_drop_level); writeU32(os, groupcaps.size()); for(std::map<std::string, ToolGroupCap>::const_iterator i = groupcaps.begin(); i != groupcaps.end(); i++){ const std::string *name = &i->first; const ToolGroupCap *cap = &i->second; os<<serializeString(*name); writeF1000(os, cap->maxwear); writeF1000(os, cap->maxlevel); writeU32(os, cap->times.size()); for(std::map<int, float>::const_iterator i = cap->times.begin(); i != cap->times.end(); i++){ writeS16(os, i->first); writeF1000(os, i->second); } } } void ToolCapabilities::deSerialize(std::istream &is) { int version = readU8(is); if(version != 0) throw SerializationError( "unsupported ToolCapabilities version"); full_punch_interval = readF1000(is); max_drop_level = readS16(is); groupcaps.clear(); u32 groupcaps_size = readU32(is); for(u32 i=0; i<groupcaps_size; i++){ std::string name = deSerializeString(is); ToolGroupCap cap; cap.maxwear = readF1000(is); cap.maxlevel = readF1000(is); u32 times_size = readU32(is); for(u32 i=0; i<times_size; i++){ int level = readS16(is); float time = readF1000(is); cap.times[level] = time; } groupcaps[name] = cap; } } DigParams getDigParams(const ItemGroupList &groups, const ToolCapabilities *tp, float time_from_last_punch) { //infostream<<"getDigParams"<<std::endl; /* Check group dig_immediate */ switch(itemgroup_get(groups, "dig_immediate")){ case 2: //infostream<<"dig_immediate=2"<<std::endl; return DigParams(true, 0.5, 0, "dig_immediate"); case 3: //infostream<<"dig_immediate=3"<<std::endl; return DigParams(true, 0.0, 0, "dig_immediate"); default: break; } // Values to be returned (with a bit of conversion) bool result_diggable = false; float result_time = 0.0; float result_wear = 0.0; std::string result_main_group = ""; int level = itemgroup_get(groups, "level"); //infostream<<"level="<<level<<std::endl; for(std::map<std::string, ToolGroupCap>::const_iterator i = tp->groupcaps.begin(); i != tp->groupcaps.end(); i++){ const std::string &name = i->first; //infostream<<"group="<<name<<std::endl; const ToolGroupCap &cap = i->second; int rating = itemgroup_get(groups, name); float time = 0; bool time_exists = cap.getTime(rating, &time); if(!result_diggable || time < result_time){ if(cap.maxlevel > level && time_exists){ result_diggable = true; result_time = time; int leveldiff = cap.maxlevel - level; result_wear = cap.maxwear / pow(4.0, (double)leveldiff); result_main_group = name; } } } //infostream<<"result_diggable="<<result_diggable<<std::endl; //infostream<<"result_time="<<result_time<<std::endl; //infostream<<"result_wear="<<result_wear<<std::endl; if(time_from_last_punch < tp->full_punch_interval){ float f = time_from_last_punch / tp->full_punch_interval; //infostream<<"f="<<f<<std::endl; result_time /= f; result_wear /= f; } u16 wear_i = 65535.*result_wear; return DigParams(result_diggable, result_time, wear_i, result_main_group); } DigParams getDigParams(const ItemGroupList &groups, const ToolCapabilities *tp) { return getDigParams(groups, tp, 1000000); } HitParams getHitParams(const ItemGroupList &groups, const ToolCapabilities *tp, float time_from_last_punch) { DigParams digprop = getDigParams(groups, tp, time_from_last_punch); if(time_from_last_punch > tp->full_punch_interval) time_from_last_punch = tp->full_punch_interval; // Damage in hp is equivalent to nodes dug in time_from_last_punch s16 hp = 0; if(digprop.diggable) hp = time_from_last_punch / digprop.time; // Wear is the same as for digging a single node s16 wear = (float)digprop.wear; return HitParams(hp, wear, digprop.main_group); } HitParams getHitParams(const ItemGroupList &groups, const ToolCapabilities *tp) { return getHitParams(groups, tp, 1000000); } PunchDamageResult getPunchDamage( const ItemGroupList &armor_groups, const ToolCapabilities *toolcap, const ItemStack *punchitem, float time_from_last_punch ){ bool do_hit = true; { if(do_hit && punchitem){ if(itemgroup_get(armor_groups, "punch_operable") && (toolcap == NULL || punchitem->name == "")) do_hit = false; } if(do_hit){ if(itemgroup_get(armor_groups, "immortal")) do_hit = false; } } PunchDamageResult result; if(do_hit) { HitParams hitparams = getHitParams(armor_groups, toolcap, time_from_last_punch); result.did_punch = true; result.wear = hitparams.wear; result.damage = hitparams.hp; result.main_group = hitparams.main_group; } return result; }