]> git.lizzy.rs Git - dragonfireclient.git/blobdiff - src/voxel.h
Allow server to accept protocol 13 clients altough they don't work too well
[dragonfireclient.git] / src / voxel.h
index c377dfe7a54cc57e6ff8787f10b0138432f05ece..e7155dfacce367165b2735744203a61cabc12ef5 100644 (file)
@@ -3,16 +3,16 @@ 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
+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 General Public License for more details.
+GNU Lesser General Public License for more details.
 
-You should have received a copy of the GNU General Public License along
+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.
 */
@@ -20,17 +20,25 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #ifndef VOXEL_HEADER
 #define VOXEL_HEADER
 
-#include "common_irrlicht.h"
+#include "irrlichttypes.h"
+#include "irr_v3d.h"
+#include <irrList.h>
 #include <iostream>
 #include "debug.h"
 #include "mapnode.h"
 
+class INodeDefManager;
+
 // For VC++
 #undef min
 #undef max
 
 /*
-       A fast voxel manipulator class
+       A fast voxel manipulator class.
+
+       In normal operation, it fetches more map when it is requested.
+       It can also be used so that all allowed area is fetched at the
+       start, using ManualMapVoxelManipulator.
 
        Not thread-safe.
 */
@@ -152,6 +160,10 @@ class VoxelArea
                        p.Z >= MinEdge.Z && p.Z <= MaxEdge.Z
                );
        }
+       bool contains(s32 i) const
+       {
+               return (i >= 0 && i < getVolume());
+       }
        bool operator==(const VoxelArea &other) const
        {
                return (MinEdge == other.MinEdge
@@ -262,7 +274,31 @@ class VoxelArea
        {
                return index(p.X, p.Y, p.Z);
        }
+       
+       // Translate index in the X coordinate
+       void add_x(const v3s16 &extent, u32 &i, s16 a)
+       {
+               i += a;
+       }
+       // Translate index in the Y coordinate
+       void add_y(const v3s16 &extent, u32 &i, s16 a)
+       {
+               i += a * extent.X;
+       }
+       // Translate index in the Z coordinate
+       void add_z(const v3s16 &extent, u32 &i, s16 a)
+       {
+               i += a * extent.X*extent.Y;
+       }
+       // Translate index in space
+       void add_p(const v3s16 &extent, u32 &i, v3s16 a)
+       {
+               i += a.Z*extent.X*extent.Y + a.Y*extent.X + a.X;
+       }
 
+       /*
+               Print method for debugging
+       */
        void print(std::ostream &o) const
        {
                v3s16 e = getExtent();
@@ -286,16 +322,12 @@ class VoxelArea
 // Checked as being inexistent in source
 #define VOXELFLAG_INEXISTENT (1<<1)
 // Algorithm-dependent
-// flowWater: "visited"
-#define VOXELFLAG_CHECKED (1<<2)
+#define VOXELFLAG_CHECKED1 (1<<2)
 // Algorithm-dependent
-// getWaterPressure: "visited"
 #define VOXELFLAG_CHECKED2 (1<<3)
 // Algorithm-dependent
-// spreadWaterPressure: "visited"
 #define VOXELFLAG_CHECKED3 (1<<4)
 // Algorithm-dependent
-// water: "pressure check route node"
 #define VOXELFLAG_CHECKED4 (1<<5)
 
 enum VoxelPrintMode
@@ -303,6 +335,7 @@ enum VoxelPrintMode
        VOXELPRINT_NOTHING,
        VOXELPRINT_MATERIAL,
        VOXELPRINT_WATERPRESSURE,
+       VOXELPRINT_LIGHT_DAY,
 };
 
 class VoxelManipulator /*: public NodeContainer*/
@@ -323,25 +356,78 @@ class VoxelManipulator /*: public NodeContainer*/
                emerge(p);
                return !(m_flags[m_area.index(p)] & VOXELFLAG_INEXISTENT);
        }*/
-       // These are a bit slow and shouldn't be used internally
+
+       /*
+               These are a bit slow and shouldn't be used internally.
+               Use m_data[m_area.index(p)] instead.
+       */
        MapNode getNode(v3s16 p)
        {
                emerge(p);
 
                if(m_flags[m_area.index(p)] & VOXELFLAG_INEXISTENT)
                {
-                       dstream<<"EXCEPT: VoxelManipulator::getNode(): "
+                       /*dstream<<"EXCEPT: VoxelManipulator::getNode(): "
                                        <<"p=("<<p.X<<","<<p.Y<<","<<p.Z<<")"
                                        <<", index="<<m_area.index(p)
                                        <<", flags="<<(int)m_flags[m_area.index(p)]
-                                       <<" is inexistent"<<std::endl;
+                                       <<" is inexistent"<<std::endl;*/
                        throw InvalidPositionException
                        ("VoxelManipulator: getNode: inexistent");
                }
 
                return m_data[m_area.index(p)];
        }
-       void setNode(v3s16 p, MapNode &n)
+       MapNode getNodeNoEx(v3s16 p)
+       {
+               emerge(p);
+
+               if(m_flags[m_area.index(p)] & VOXELFLAG_INEXISTENT)
+               {
+                       return MapNode(CONTENT_IGNORE);
+               }
+
+               return m_data[m_area.index(p)];
+       }
+       MapNode getNodeNoExNoEmerge(v3s16 p)
+       {
+               if(m_area.contains(p) == false)
+                       return MapNode(CONTENT_IGNORE);
+               if(m_flags[m_area.index(p)] & VOXELFLAG_INEXISTENT)
+                       return MapNode(CONTENT_IGNORE);
+               return m_data[m_area.index(p)];
+       }
+       // Stuff explodes if non-emerged area is touched with this.
+       // Emerge first, and check VOXELFLAG_INEXISTENT if appropriate.
+       MapNode & getNodeRefUnsafe(v3s16 p)
+       {
+               return m_data[m_area.index(p)];
+       }
+       u8 & getFlagsRefUnsafe(v3s16 p)
+       {
+               return m_flags[m_area.index(p)];
+       }
+       bool exists(v3s16 p)
+       {
+               return m_area.contains(p) &&
+                       !(getFlagsRefUnsafe(p) & VOXELFLAG_INEXISTENT);
+       }
+       MapNode & getNodeRef(v3s16 p)
+       {
+               emerge(p);
+               if(getFlagsRefUnsafe(p) & VOXELFLAG_INEXISTENT)
+               {
+                       /*dstream<<"EXCEPT: VoxelManipulator::getNode(): "
+                                       <<"p=("<<p.X<<","<<p.Y<<","<<p.Z<<")"
+                                       <<", index="<<m_area.index(p)
+                                       <<", flags="<<(int)getFlagsRefUnsafe(p)
+                                       <<" is inexistent"<<std::endl;*/
+                       throw InvalidPositionException
+                       ("VoxelManipulator: getNode: inexistent");
+               }
+               return getNodeRefUnsafe(p);
+       }
+       void setNode(v3s16 p, const MapNode &n)
        {
                emerge(p);
                
@@ -349,7 +435,8 @@ class VoxelManipulator /*: public NodeContainer*/
                m_flags[m_area.index(p)] &= ~VOXELFLAG_INEXISTENT;
                m_flags[m_area.index(p)] &= ~VOXELFLAG_NOT_LOADED;
        }
-       void setNodeNoRef(v3s16 p, MapNode n)
+       // TODO: Should be removed and replaced with setNode
+       void setNodeNoRef(v3s16 p, const MapNode &n)
        {
                setNode(p, n);
        }
@@ -373,6 +460,33 @@ class VoxelManipulator /*: public NodeContainer*/
                
                return m_data[m_area.index(p)];
        }*/
+       
+       /*
+               Set stuff if available without an emerge.
+               Return false if failed.
+               This is convenient but slower than playing around directly
+               with the m_data table with indices.
+       */
+       bool setNodeNoEmerge(v3s16 p, MapNode n)
+       {
+               if(m_area.contains(p) == false)
+                       return false;
+               m_data[m_area.index(p)] = n;
+               return true;
+       }
+       bool setNodeNoEmerge(s32 i, MapNode n)
+       {
+               if(m_area.contains(i) == false)
+                       return false;
+               m_data[i] = n;
+               return true;
+       }
+       /*bool setContentNoEmerge(v3s16 p, u8 c)
+       {
+               if(isValidPosition(p) == false)
+                       return false;
+               m_data[m_area.index(p)].d = c;
+       }*/
 
        /*
                Control
@@ -380,7 +494,8 @@ class VoxelManipulator /*: public NodeContainer*/
 
        virtual void clear();
 
-       void print(std::ostream &o, VoxelPrintMode mode=VOXELPRINT_MATERIAL);
+       void print(std::ostream &o, INodeDefManager *nodemgr,
+                       VoxelPrintMode mode=VOXELPRINT_MATERIAL);
        
        void addArea(VoxelArea area);
 
@@ -390,6 +505,10 @@ class VoxelManipulator /*: public NodeContainer*/
        */
        void copyFrom(MapNode *src, VoxelArea src_area,
                        v3s16 from_pos, v3s16 to_pos, v3s16 size);
+       
+       // Copy data
+       void copyTo(MapNode *dst, VoxelArea dst_area,
+                       v3s16 dst_pos, v3s16 from_pos, v3s16 size);
 
        /*
                Algorithms
@@ -397,62 +516,18 @@ class VoxelManipulator /*: public NodeContainer*/
 
        void clearFlag(u8 flag);
 
-#if 0
-       // VOXELFLAG_CHECKED2s must usually be cleared before calling
-       // -1: dead end, 0-255: pressure
-       // highest_y: Highest found water y is stored here.
-       //            Must be initialized to -32768
-       int getWaterPressure(v3s16 p, s16 &highest_y, int recur_count);
+       // TODO: Move to voxelalgorithms.h
 
-       /*
-               VOXELFLAG_CHECKED3s must usually be cleared before calling.
-
-               active_nodes: surface-touching air nodes with flow-causing
-               pressure. set-like dummy map container.
-
-               Spreads pressure pr at node p to request_area or as far as
-               there is invalid pressure.
-       */
-       void spreadWaterPressure(v3s16 p, int pr,
-                       VoxelArea request_area,
-                       core::map<v3s16, u8> &active_nodes,
-                       int recur_count);
+       void unspreadLight(enum LightBank bank, v3s16 p, u8 oldlight,
+                       core::map<v3s16, bool> & light_sources, INodeDefManager *nodemgr);
+       void unspreadLight(enum LightBank bank,
+                       core::map<v3s16, u8> & from_nodes,
+                       core::map<v3s16, bool> & light_sources, INodeDefManager *nodemgr);
        
-       /*
-               VOXELFLAG_CHECKED3s must usually be cleared before calling.
-       */
-       void updateAreaWaterPressure(VoxelArea a,
-                       core::map<v3s16, u8> &active_nodes,
-                       bool checked3_is_clear=false);
+       void spreadLight(enum LightBank bank, v3s16 p, INodeDefManager *nodemgr);
+       void spreadLight(enum LightBank bank,
+                       core::map<v3s16, bool> & from_nodes, INodeDefManager *nodemgr);
        
-       /*
-               Returns true if moved something
-       */
-       bool flowWater(v3s16 removed_pos,
-                       core::map<v3s16, u8> &active_nodes,
-                       int recursion_depth=0,
-                       bool debugprint=false,
-                       u32 stoptime=0
-       );
-
-       /*
-               To flow some water, call this with the target node in
-               active_nodes
-               TODO: Make the active_nodes map to contain some vectors
-                     that are properly sorted according to water flow order.
-                         The current order makes water flow strangely if the
-                         first one is always taken.
-                         No, active_nodes should preserve the order stuff is
-                         added to it, in addition to adhering the water flow
-                         order.
-       */
-       void flowWater(core::map<v3s16, u8> &active_nodes,
-                       int recursion_depth=0,
-                       bool debugprint=false,
-                       u32 timelimit=50
-       );
-#endif
-
        /*
                Virtual functions
        */
@@ -510,7 +585,7 @@ class VoxelManipulator /*: public NodeContainer*/
        /*
                Some settings
        */
-       bool m_disable_water_climb;
+       //bool m_disable_water_climb;
 
 private:
 };