X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Fmapnode.h;h=c3137bbcb55c092f8214f27f6442bdf99b693d42;hb=bb74da590349643403df2c99ddc2d1584d4324ad;hp=60211b87cae1ec7d450811e9d3292e82e5d56a44;hpb=ce955f37ba9f431122ca3c46e5a7dac63ffd65ea;p=minetest.git diff --git a/src/mapnode.h b/src/mapnode.h index 60211b87c..c3137bbcb 100644 --- a/src/mapnode.h +++ b/src/mapnode.h @@ -17,16 +17,16 @@ with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#ifndef MAPNODE_HEADER -#define MAPNODE_HEADER +#pragma once -#include "irrlichttypes.h" -#include "irr_v3d.h" -#include "irr_aabb3d.h" +#include "irrlichttypes_bloated.h" #include "light.h" +#include "util/pointer.h" +#include #include -class INodeDefManager; +class NodeDefManager; +class Map; /* Naming scheme: @@ -35,25 +35,61 @@ class INodeDefManager; - Tile = TileSpec at some side of a node of some content type */ typedef u16 content_t; -#define MAX_CONTENT 0xfff +#define CONTENT_MAX UINT16_MAX + +/* + The maximum node ID that can be registered by mods. This must + be significantly lower than the maximum content_t value, so that + there is enough room for dummy node IDs, which are created when + a MapBlock containing unknown node names is loaded from disk. +*/ +#define MAX_REGISTERED_CONTENT 0x7fffU + +/* + A solid walkable node with the texture unknown_node.png. + + For example, used on the client to display unregistered node IDs + (instead of expanding the vector of node definitions each time + such a node is received). +*/ +#define CONTENT_UNKNOWN 125 + +/* + The common material through which the player can walk and which + is transparent to light +*/ +#define CONTENT_AIR 126 /* Ignored node. - Anything that stores MapNodes doesn't have to preserve parameters - associated with this material. - + Unloaded chunks are considered to consist of this. Several other + methods return this when an error occurs. Also, during + map generation this means the node has not been set yet. + Doesn't create faces with anything and is considered being out-of-map in the game map. */ #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 + Content lighting information that fits into a single byte. */ -#define CONTENT_AIR 126 +struct ContentLightingFlags { + u8 light_source : 4; + bool has_light : 1; + bool light_propagates : 1; + bool sunlight_propagates : 1; + + bool operator==(const ContentLightingFlags &other) const + { + return has_light == other.has_light && light_propagates == other.light_propagates && + sunlight_propagates == other.sunlight_propagates && + light_source == other.light_source; + } + bool operator!=(const ContentLightingFlags &other) const { return !(*this == other); } +}; +static_assert(sizeof(ContentLightingFlags) == 1, "Unexpected ContentLightingFlags size"); enum LightBank { @@ -87,12 +123,19 @@ enum Rotation { #define LIQUID_INFINITY_MASK 0x80 //0b10000000 +// mask for leveled nodebox param2 +#define LEVELED_MASK 0x7F +#define LEVELED_MAX LEVELED_MASK + + +struct ContentFeatures; + /* This is the stuff what the whole world consists of. */ -struct MapNode +struct alignas(u32) MapNode { /* Main content @@ -108,112 +151,164 @@ struct MapNode - Uhh... well, most blocks have light or nothing in here. */ u8 param1; - + /* The second parameter. Initialized to 0. E.g. direction for torches and flowing water. */ u8 param2; - MapNode(const MapNode & n) - { - *this = n; - } - - MapNode(content_t content=CONTENT_AIR, u8 a_param1=0, u8 a_param2=0) - { - param0 = content; - param1 = a_param1; - param2 = a_param2; - } - - // Create directly from a nodename - // If name is unknown, sets CONTENT_IGNORE - MapNode(INodeDefManager *ndef, const std::string &name, - u8 a_param1=0, u8 a_param2=0); + MapNode() = default; + + MapNode(content_t content, u8 a_param1=0, u8 a_param2=0) noexcept + : param0(content), + param1(a_param1), + param2(a_param2) + { } - bool operator==(const MapNode &other) + bool operator==(const MapNode &other) const noexcept { return (param0 == other.param0 && param1 == other.param1 && param2 == other.param2); } - + // To be used everywhere - content_t getContent() const + content_t getContent() const noexcept { return param0; } - void setContent(content_t c) + void setContent(content_t c) noexcept { param0 = c; } - u8 getParam1() const + u8 getParam1() const noexcept { return param1; } - void setParam1(u8 p) + void setParam1(u8 p) noexcept { param1 = p; } - u8 getParam2() const + u8 getParam2() const noexcept { return param2; } - void setParam2(u8 p) + void setParam2(u8 p) noexcept { param2 = p; } - - void setLight(enum LightBank bank, u8 a_light, INodeDefManager *nodemgr); - u8 getLight(enum LightBank bank, INodeDefManager *nodemgr) const; - bool getLightBanks(u8 &lightday, u8 &lightnight, INodeDefManager *nodemgr) const; - - // 0 <= daylight_factor <= 1000 - // 0 <= return value <= LIGHT_SUN - u8 getLightBlend(u32 daylight_factor, INodeDefManager *nodemgr) const + + /*! + * Returns the color of the node. + * + * \param f content features of this node + * \param color output, contains the node's color. + */ + void getColor(const ContentFeatures &f, video::SColor *color) const; + + inline void setLight(LightBank bank, u8 a_light, ContentLightingFlags f) noexcept { - u8 lightday = 0; - u8 lightnight = 0; - getLightBanks(lightday, lightnight, nodemgr); - return blend_light(daylight_factor, lightday, lightnight); + // If node doesn't contain light data, ignore this + if (!f.has_light) + return; + if (bank == LIGHTBANK_DAY) { + param1 &= 0xf0; + param1 |= a_light & 0x0f; + } else { + assert(bank == LIGHTBANK_NIGHT); + param1 &= 0x0f; + param1 |= (a_light & 0x0f)<<4; + } + } + + /** + * Check if the light value for night differs from the light value for day. + * + * @return If the light values are equal, returns true; otherwise false + */ + inline bool isLightDayNightEq(ContentLightingFlags f) const noexcept + { + return !f.has_light || getLight(LIGHTBANK_DAY, f) == getLight(LIGHTBANK_NIGHT, f); + } + + inline u8 getLight(LightBank bank, ContentLightingFlags f) const noexcept + { + u8 raw_light = getLightRaw(bank, f); + return MYMAX(f.light_source, raw_light); + } + + /*! + * Returns the node's light level from param1. + * If the node emits light, it is ignored. + * \param f the ContentLightingFlags of this node. + */ + inline u8 getLightRaw(LightBank bank, ContentLightingFlags f) const noexcept + { + if(f.has_light) + return bank == LIGHTBANK_DAY ? param1 & 0x0f : (param1 >> 4) & 0x0f; + return 0; } - // 0.0 <= daylight_factor <= 1.0 + // 0 <= daylight_factor <= 1000 // 0 <= return value <= LIGHT_SUN - u8 getLightBlendF1(float daylight_factor, INodeDefManager *nodemgr) const + u8 getLightBlend(u32 daylight_factor, ContentLightingFlags f) const { - u8 lightday = 0; - u8 lightnight = 0; - getLightBanks(lightday, lightnight, nodemgr); - return blend_light_f1(daylight_factor, lightday, lightnight); + u8 lightday = getLight(LIGHTBANK_DAY, f); + u8 lightnight = getLight(LIGHTBANK_NIGHT, f); + return blend_light(daylight_factor, lightday, lightnight); } - u8 getFaceDir(INodeDefManager *nodemgr) const; - u8 getWallMounted(INodeDefManager *nodemgr) const; - v3s16 getWallMountedDir(INodeDefManager *nodemgr) const; - - void rotateAlongYAxis(INodeDefManager *nodemgr, Rotation rot); + u8 getFaceDir(const NodeDefManager *nodemgr, bool allow_wallmounted = false) const; + u8 getWallMounted(const NodeDefManager *nodemgr) const; + v3s16 getWallMountedDir(const NodeDefManager *nodemgr) const; + + /// @returns Rotation in range 0–239 (in 1.5° steps) + u8 getDegRotate(const NodeDefManager *nodemgr) const; + + void rotateAlongYAxis(const NodeDefManager *nodemgr, Rotation rot); + + /*! + * Checks which neighbors does this node connect to. + * + * \param p coordinates of the node + */ + u8 getNeighbors(v3s16 p, Map *map) const; /* - Gets list of node boxes (used for rendering (NDT_NODEBOX) - and collision) + Gets list of node boxes (used for rendering (NDT_NODEBOX)) */ - std::vector getNodeBoxes(INodeDefManager *nodemgr) const; + void getNodeBoxes(const NodeDefManager *nodemgr, std::vector *boxes, + u8 neighbors = 0) const; /* Gets list of selection boxes */ - std::vector getSelectionBoxes(INodeDefManager *nodemgr) const; + void getSelectionBoxes(const NodeDefManager *nodemg, + std::vector *boxes, u8 neighbors = 0) const; + + /* + Gets list of collision boxes + */ + void getCollisionBoxes(const NodeDefManager *nodemgr, + std::vector *boxes, u8 neighbors = 0) const; + + /* + Liquid/leveled helpers + */ + u8 getMaxLevel(const NodeDefManager *nodemgr) const; + u8 getLevel(const NodeDefManager *nodemgr) const; + s8 setLevel(const NodeDefManager *nodemgr, s16 level = 1); + s8 addLevel(const NodeDefManager *nodemgr, s16 add = 1); /* Serialization functions */ static u32 serializedLength(u8 version); - void serialize(u8 *dest, u8 version); + void serialize(u8 *dest, u8 version) const; void deSerialize(u8 *source, u8 version); - + // Serializes or deserializes a list of nodes in bulk format (first the // content of all nodes, then the param1 of all nodes, then the param2 // of all nodes). @@ -221,17 +316,14 @@ struct MapNode // content_width = the number of bytes of content per node // params_width = the number of bytes of params per node // compressed = true to zlib-compress output - static void serializeBulk(std::ostream &os, int version, + static SharedBuffer serializeBulk(int version, const MapNode *nodes, u32 nodecount, - u8 content_width, u8 params_width, bool compressed); + u8 content_width, u8 params_width); static void deSerializeBulk(std::istream &is, int version, MapNode *nodes, u32 nodecount, - u8 content_width, u8 params_width, bool compressed); + u8 content_width, u8 params_width); private: // Deprecated serialization methods - void deSerialize_pre22(u8 *source, u8 version); + void deSerialize_pre22(const u8 *source, u8 version); }; - -#endif -