]> git.lizzy.rs Git - minetest.git/blobdiff - src/mapnode.cpp
Use numeric indices and raw table access with LUA_REGISTRYINDEX
[minetest.git] / src / mapnode.cpp
index 4707978cbc2a4803fa651060404277648f296511..732237833c4e391abb5d7281824e1fd09a141d62 100644 (file)
@@ -20,12 +20,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "irrlichttypes_extrabloated.h"
 #include "mapnode.h"
 #include "porting.h"
-#include "main.h" // For g_settings
 #include "nodedef.h"
 #include "content_mapnode.h" // For mapnode_translate_*_internal
 #include "serialization.h" // For ser_ver_supported
 #include "util/serialize.h"
 #include "log.h"
+#include "util/numeric.h"
 #include <string>
 #include <sstream>
 
@@ -70,26 +70,43 @@ void MapNode::setLight(enum LightBank bank, u8 a_light, INodeDefManager *nodemgr
                param1 |= (a_light & 0x0f)<<4;
        }
        else
-               assert(0);
+               assert("Invalid light bank" == NULL);
+}
+
+bool MapNode::isLightDayNightEq(INodeDefManager *nodemgr) const
+{
+       const ContentFeatures &f = nodemgr->get(*this);
+       bool isEqual;
+
+       if (f.param_type == CPT_LIGHT) {
+               u8 day   = MYMAX(f.light_source, param1 & 0x0f);
+               u8 night = MYMAX(f.light_source, (param1 >> 4) & 0x0f);
+               isEqual = day == night;
+       } else {
+               isEqual = true;
+       }
+
+       return isEqual;
 }
 
 u8 MapNode::getLight(enum LightBank bank, INodeDefManager *nodemgr) const
 {
        // Select the brightest of [light source, propagated light]
        const ContentFeatures &f = nodemgr->get(*this);
-       u8 light = 0;
+
+       u8 light;
        if(f.param_type == CPT_LIGHT)
-       {
-               if(bank == LIGHTBANK_DAY)
-                       light = param1 & 0x0f;
-               else if(bank == LIGHTBANK_NIGHT)
-                       light = (param1>>4)&0x0f;
-               else
-                       assert(0);
-       }
-       if(f.light_source > light)
-               light = f.light_source;
-       return light;
+               light = bank == LIGHTBANK_DAY ? param1 & 0x0f : (param1 >> 4) & 0x0f;
+       else
+               light = 0;
+
+       return MYMAX(f.light_source, light);
+}
+
+u8 MapNode::getLightNoChecks(enum LightBank bank, const ContentFeatures *f) const
+{
+       return MYMAX(f->light_source,
+                    bank == LIGHTBANK_DAY ? param1 & 0x0f : (param1 >> 4) & 0x0f);
 }
 
 bool MapNode::getLightBanks(u8 &lightday, u8 &lightnight, INodeDefManager *nodemgr) const
@@ -117,7 +134,7 @@ u8 MapNode::getFaceDir(INodeDefManager *nodemgr) const
 {
        const ContentFeatures &f = nodemgr->get(*this);
        if(f.param_type_2 == CPT2_FACEDIR)
-               return getParam2() & 0x1F;
+               return (getParam2() & 0x1F) % 24;
        return 0;
 }
 
@@ -146,6 +163,9 @@ void MapNode::rotateAlongYAxis(INodeDefManager *nodemgr, Rotation rot) {
        ContentParamType2 cpt2 = nodemgr->get(*this).param_type_2;
 
        if (cpt2 == CPT2_FACEDIR) {
+               if (param2 >= 4)
+                       return;
+
                u8 newrot = param2 & 3;
                param2 &= ~3;
                param2 |= (newrot + rot) & 3;
@@ -153,7 +173,7 @@ void MapNode::rotateAlongYAxis(INodeDefManager *nodemgr, Rotation rot) {
                u8 wmountface = (param2 & 7);
                if (wmountface <= 1)
                        return;
-                       
+
                Rotation oldrot = wallmounted_to_rot[wmountface - 2];
                param2 &= ~7;
                param2 |= rot_to_wallmounted[(oldrot - rot) & 3];
@@ -172,7 +192,7 @@ static std::vector<aabb3f> transformNodeBox(const MapNode &n,
                facedir&=0x03;
                for(std::vector<aabb3f>::const_iterator
                                i = fixed.begin();
-                               i != fixed.end(); i++)
+                               i != fixed.end(); ++i)
                {
                        aabb3f box = *i;
 
@@ -354,6 +374,15 @@ std::vector<aabb3f> MapNode::getNodeBoxes(INodeDefManager *nodemgr) const
        return transformNodeBox(*this, f.node_box, nodemgr);
 }
 
+std::vector<aabb3f> MapNode::getCollisionBoxes(INodeDefManager *nodemgr) const
+{
+       const ContentFeatures &f = nodemgr->get(*this);
+       if (f.collision_box.fixed.empty())
+               return transformNodeBox(*this, f.node_box, nodemgr);
+       else
+               return transformNodeBox(*this, f.collision_box, nodemgr);
+}
+
 std::vector<aabb3f> MapNode::getSelectionBoxes(INodeDefManager *nodemgr) const
 {
        const ContentFeatures &f = nodemgr->get(*this);
@@ -364,9 +393,7 @@ u8 MapNode::getMaxLevel(INodeDefManager *nodemgr) const
 {
        const ContentFeatures &f = nodemgr->get(*this);
        // todo: after update in all games leave only if (f.param_type_2 ==
-       if(        f.liquid_type == LIQUID_SOURCE 
-               || f.liquid_type == LIQUID_FLOWING 
-               || f.param_type_2 == CPT2_FLOWINGLIQUID)
+       if( f.liquid_type == LIQUID_FLOWING || f.param_type_2 == CPT2_FLOWINGLIQUID)
                return LIQUID_LEVEL_MAX;
        if(f.leveled || f.param_type_2 == CPT2_LEVELED)
                return LEVELED_MAX;
@@ -385,29 +412,28 @@ u8 MapNode::getLevel(INodeDefManager *nodemgr) const
                return getParam2() & LIQUID_LEVEL_MASK;
        if(f.leveled || f.param_type_2 == CPT2_LEVELED) {
                 u8 level = getParam2() & LEVELED_MASK;
-                if(level) return level;
-                if(f.leveled > LEVELED_MAX) return LEVELED_MAX;
+                if(level)
+                       return level;
+                if(f.leveled > LEVELED_MAX)
+                       return LEVELED_MAX;
                 return f.leveled; //default
        }
        return 0;
 }
 
-u8 MapNode::addLevel(INodeDefManager *nodemgr, s8 add)
+u8 MapNode::setLevel(INodeDefManager *nodemgr, s8 level)
 {
-       s8 level = getLevel(nodemgr);
        u8 rest = 0;
-       if (add == 0) level = 1;
-       level += add;
        if (level < 1) {
                setContent(CONTENT_AIR);
                return 0;
        }
        const ContentFeatures &f = nodemgr->get(*this);
-       if (       f.param_type_2 == CPT2_FLOWINGLIQUID
+       if (f.param_type_2 == CPT2_FLOWINGLIQUID
                || f.liquid_type == LIQUID_FLOWING
                || f.liquid_type == LIQUID_SOURCE) {
-               if (level >= LIQUID_LEVEL_MAX) {
-                       rest = level - LIQUID_LEVEL_MAX;
+               if (level >= LIQUID_LEVEL_SOURCE) {
+                       rest = level - LIQUID_LEVEL_SOURCE;
                        setContent(nodemgr->getId(f.liquid_alternative_source));
                } else {
                        setContent(nodemgr->getId(f.liquid_alternative_flowing));
@@ -423,11 +449,19 @@ u8 MapNode::addLevel(INodeDefManager *nodemgr, s8 add)
        return rest;
 }
 
+u8 MapNode::addLevel(INodeDefManager *nodemgr, s8 add)
+{
+       s8 level = getLevel(nodemgr);
+       if (add == 0) level = 1;
+       level += add;
+       return setLevel(nodemgr, level);
+}
+
 u32 MapNode::serializedLength(u8 version)
 {
        if(!ser_ver_supported(version))
                throw VersionMismatchException("ERROR: MapNode format not supported");
-               
+
        if(version == 0)
                return 1;
        else if(version <= 9)
@@ -441,13 +475,13 @@ void MapNode::serialize(u8 *dest, u8 version)
 {
        if(!ser_ver_supported(version))
                throw VersionMismatchException("ERROR: MapNode format not supported");
-       
+
        // Can't do this anymore; we have 16-bit dynamically allocated node IDs
        // in memory; conversion just won't work in this direction.
        if(version < 24)
                throw SerializationError("MapNode::serialize: serialization to "
                                "version < 24 not possible");
-               
+
        writeU16(dest+0, param0);
        writeU8(dest+2, param1);
        writeU8(dest+3, param2);
@@ -456,7 +490,7 @@ void MapNode::deSerialize(u8 *source, u8 version)
 {
        if(!ser_ver_supported(version))
                throw VersionMismatchException("ERROR: MapNode format not supported");
-               
+
        if(version <= 21)
        {
                deSerialize_pre22(source, version);
@@ -467,8 +501,7 @@ void MapNode::deSerialize(u8 *source, u8 version)
                param0 = readU16(source+0);
                param1 = readU8(source+2);
                param2 = readU8(source+3);
-       }
-       else{
+       }else{
                param0 = readU8(source+0);
                param1 = readU8(source+1);
                param2 = readU8(source+2);
@@ -485,8 +518,8 @@ void MapNode::serializeBulk(std::ostream &os, int version,
        if(!ser_ver_supported(version))
                throw VersionMismatchException("ERROR: MapNode format not supported");
 
-       assert(content_width == 2);
-       assert(params_width == 2);
+       sanity_check(content_width == 2);
+       sanity_check(params_width == 2);
 
        // Can't do this anymore; we have 16-bit dynamically allocated node IDs
        // in memory; conversion just won't work in this direction.
@@ -532,9 +565,10 @@ void MapNode::deSerializeBulk(std::istream &is, int version,
        if(!ser_ver_supported(version))
                throw VersionMismatchException("ERROR: MapNode format not supported");
 
-       assert(version >= 22);
-       assert(content_width == 1 || content_width == 2);
-       assert(params_width == 2);
+       if (version < 22
+                       || (content_width != 1 && content_width != 2)
+                       || params_width != 2)
+               FATAL_ERROR("Deserialize bulk node data error");
 
        // Uncompress or read data
        u32 len = nodecount * (content_width + params_width);
@@ -619,7 +653,7 @@ void MapNode::deSerialize_pre22(u8 *source, u8 version)
                        param2 &= 0x0f;
                }
        }
-       
+
        // Convert special values from old version to new
        if(version <= 19)
        {