From 8f742855a1f7b7679be1987c1b0c469e822c73f1 Mon Sep 17 00:00:00 2001 From: Perttu Ahola Date: Sat, 2 Jul 2011 01:07:54 +0300 Subject: [PATCH] initial steps in doing content type extension --- src/content_mapnode.cpp | 1 - src/mapblock.cpp | 59 +++++------------ src/mapnode.cpp | 92 ++++++++++++++++++++++++++- src/mapnode.h | 138 +++++++++++++--------------------------- src/serialization.h | 5 +- 5 files changed, 151 insertions(+), 144 deletions(-) diff --git a/src/content_mapnode.cpp b/src/content_mapnode.cpp index 403fb66d3..d82ccc5c9 100644 --- a/src/content_mapnode.cpp +++ b/src/content_mapnode.cpp @@ -151,7 +151,6 @@ void content_mapnode_init() // Deprecated i = CONTENT_COALSTONE; f = &content_features(i); - //f->translate_to = new MapNode(CONTENT_STONE, MINERAL_COAL); f->setAllTextures("stone.png^mineral_coal.png"); f->is_ground_content = true; setStoneLikeDiggingProperties(f->digging_properties, 1.5); diff --git a/src/mapblock.cpp b/src/mapblock.cpp index c125e67c8..647a17756 100644 --- a/src/mapblock.cpp +++ b/src/mapblock.cpp @@ -607,24 +607,20 @@ void MapBlock::serialize(std::ostream &os, u8 version) Get data */ - SharedBuffer databuf(nodecount*3); - - // Get contents + // Serialize nodes + SharedBuffer databuf_nodelist(nodecount*3); for(u32 i=0; i databuf(nodecount*3); for(u32 i=0; id< 0) + param = 0; + else + param = source[1]; + } + else if(version <= 9) + { + d = source[0]; + param = source[1]; + } + else + { + d = source[0]; + param = source[1]; + param2 = source[2]; + + // Convert from old version to new + if(version <= 18) + { + // In these versions, CONTENT_IGNORE and CONTENT_AIR + // are 255 and 254 + if(d == 255) + d = CONTENT_IGNORE; + else if(d == 254) + d = CONTENT_AIR; + } + } +} + /* Gets lighting value at face of node diff --git a/src/mapnode.h b/src/mapnode.h index eb4b17e48..36d48fb9e 100644 --- a/src/mapnode.h +++ b/src/mapnode.h @@ -36,6 +36,13 @@ with this program; if not, write to the Free Software Foundation, Inc., - Tile = TileSpec at some side of a node of some content type */ +/* + Ranges: + 0x000...0x07f: param2 is fully usable + 0x800...0xfff: param2 lower 4 bytes are free +*/ +typedef u16 content_t; + /* Initializes all kind of stuff in here. Many things depend on this. @@ -59,14 +66,16 @@ void init_mapnode(); Doesn't create faces with anything and is considered being out-of-map in the game map. */ -#define CONTENT_IGNORE 255 +//#define CONTENT_IGNORE 255 +#define CONTENT_IGNORE 127 #define CONTENT_IGNORE_DEFAULT_PARAM 0 /* The common material through which the player can walk and which is transparent to light */ -#define CONTENT_AIR 254 +//#define CONTENT_AIR 254 +#define CONTENT_AIR 126 /* Content feature list @@ -94,7 +103,7 @@ class NodeMetadata; struct ContentFeatures { // If non-NULL, content is translated to this when deserialized - MapNode *translate_to; + //MapNode *translate_to; // Type of MapNode::param ContentParamType param_type; @@ -154,7 +163,7 @@ struct ContentFeatures void reset() { - translate_to = NULL; + //translate_to = NULL; param_type = CPT_NONE; inventory_texture = NULL; is_ground_content = false; @@ -399,20 +408,30 @@ enum LightBank struct MapNode { - // Content - u8 d; + /* + Main content + 0x00-0x7f: Short content type + 0x80-0xff: Long content type (param2>>4 makes up low bytes) + */ + union + { + u8 param0; + u8 d; + }; /* Misc parameter. Initialized to 0. - For light_propagates() blocks, this is light intensity, stored logarithmically from 0 to LIGHT_MAX. Sunlight is LIGHT_SUN, which is LIGHT_MAX+1. - - Contains 2 values, day- and night lighting. Each takes 4 bits. + - Contains 2 values, day- and night lighting. Each takes 4 bits. + - Mineral content (should be removed from here) + - Uhh... well, most blocks have light or nothing in here. */ union { - s8 param; u8 param1; + s8 param; }; /* @@ -437,14 +456,6 @@ struct MapNode param2 = a_param2; } - /*MapNode & operator=(const MapNode &other) - { - d = other.d; - param = other.param; - param2 = other.param2; - return *this; - }*/ - bool operator==(const MapNode &other) { return (d == other.d @@ -452,6 +463,16 @@ struct MapNode && param2 == other.param2); } + // To be used everywhere + content_t getContent() + { + return d; + } + void setContent(content_t c) + { + d = c; + } + /* These four are DEPRECATED I guess. -c55 */ @@ -566,88 +587,15 @@ struct MapNode MINERAL_NONE if doesn't contain or isn't able to contain mineral. */ u8 getMineral(); - + /* - These serialization functions are used when informing client - of a single node add. - - NOTE: When loading a MapBlock, these are not used. Should they? + Serialization functions */ - static u32 serializedLength(u8 version) - { - if(!ser_ver_supported(version)) - throw VersionMismatchException("ERROR: MapNode format not supported"); - - if(version == 0) - return 1; - else if(version <= 9) - return 2; - else - return 3; - } - void serialize(u8 *dest, u8 version) - { - if(!ser_ver_supported(version)) - throw VersionMismatchException("ERROR: MapNode format not supported"); - - if(version == 0) - { - dest[0] = d; - } - else if(version <= 9) - { - dest[0] = d; - dest[1] = param; - } - else - { - dest[0] = d; - dest[1] = param; - dest[2] = param2; - } - } - void deSerialize(u8 *source, u8 version) - { - if(!ser_ver_supported(version)) - throw VersionMismatchException("ERROR: MapNode format not supported"); - - if(version == 0) - { - d = source[0]; - } - else if(version == 1) - { - d = source[0]; - // This version doesn't support saved lighting - if(light_propagates() || light_source() > 0) - param = 0; - else - param = source[1]; - } - else if(version <= 9) - { - d = source[0]; - param = source[1]; - } - else - { - d = source[0]; - param = source[1]; - param2 = source[2]; - } - - // Translate deprecated stuff - // NOTE: This doesn't get used because MapBlock handles node - // parameters directly - MapNode *translate_to = content_features(d).translate_to; - if(translate_to) - { - dstream<<"MapNode: WARNING: Translating "<d<