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This callback is called if a liquid definitely floods a non-air node on the map. The callback arguments are (pos, oldnode, newnode) and can return a `bool` value indicating whether flooding the node should be cancelled (`return true` will prevent the node from flooding). Documentation is added, the callback function was tested with a modified minetest_game. Note that `return true` will likely cause the node's `on_flood()` callback to be called every second until the node gets removed, so care must be taken to prevent many callbacks from using this return value. The current default liquid update interval is 1.0 seconds, which isn't unmanageable. The larger aim of this patch is to remove the lava cooling ABM, which is a significant cost to idle servers that have lava on their map. This callback will be much more efficient.
65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef S_NODE_H_
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#define S_NODE_H_
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#include "irr_v3d.h"
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#include "cpp_api/s_base.h"
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#include "cpp_api/s_nodemeta.h"
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#include "util/string.h"
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struct MapNode;
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class ServerActiveObject;
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class ScriptApiNode
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: virtual public ScriptApiBase,
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public ScriptApiNodemeta
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{
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public:
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ScriptApiNode();
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virtual ~ScriptApiNode();
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bool node_on_punch(v3s16 p, MapNode node,
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ServerActiveObject *puncher, PointedThing pointed);
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bool node_on_dig(v3s16 p, MapNode node,
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ServerActiveObject *digger);
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void node_on_construct(v3s16 p, MapNode node);
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void node_on_destruct(v3s16 p, MapNode node);
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bool node_on_flood(v3s16 p, MapNode node, MapNode newnode);
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void node_after_destruct(v3s16 p, MapNode node);
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bool node_on_timer(v3s16 p, MapNode node, f32 dtime);
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void node_on_receive_fields(v3s16 p,
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const std::string &formname,
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const StringMap &fields,
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ServerActiveObject *sender);
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void node_falling_update(v3s16 p);
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void node_falling_update_single(v3s16 p);
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public:
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static struct EnumString es_DrawType[];
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static struct EnumString es_ContentParamType[];
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static struct EnumString es_ContentParamType2[];
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static struct EnumString es_LiquidType[];
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static struct EnumString es_NodeBoxType[];
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};
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#endif /* S_NODE_H_ */
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