/*
Minetest-c55
-Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2010-2011 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
#include "exceptions.h"
#include "serialization.h"
#include "tile.h"
+#include "materials.h"
-// Size of node in rendering units
-#define BS 10
+/*
+ Naming scheme:
+ - Material = irrlicht's Material class
+ - Content = (u8) content of a node
+ - 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.
-#define MATERIALS_COUNT 256
+ This accesses g_texturesource; if it is non-NULL, textures are set.
+
+ Client first calls this with g_texturesource=NULL to run some
+ unit tests and stuff, then it runs this again with g_texturesource
+ defined to get the textures.
+
+ Server only calls this once with g_texturesource=NULL.
+*/
+void init_mapnode();
/*
Ignored node.
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
/*
- Suggested materials:
- GRAVEL
- - Dynamics of gravel: if there is a drop of more than two
- blocks on any side, it will drop in there. Is this doable?
-
- New naming scheme:
- - Material = irrlicht's Material class
- - Content = (u8) content of a node
- - Tile = (u16) Material ID at some side of a node
+ Content feature list
*/
-enum Content
+enum ContentParamType
+{
+ CPT_NONE,
+ CPT_LIGHT,
+ CPT_MINERAL,
+ // Direction for chests and furnaces and such
+ CPT_FACEDIR_SIMPLE
+};
+
+enum LiquidType
{
- CONTENT_STONE,
- CONTENT_GRASS,
- CONTENT_WATER,
- CONTENT_TORCH,
- CONTENT_TREE,
- CONTENT_LEAVES,
- CONTENT_GRASS_FOOTSTEPS,
- CONTENT_MESE,
- CONTENT_MUD,
- CONTENT_OCEAN,
- CONTENT_CLOUD,
+ LIQUID_NONE,
+ LIQUID_FLOWING,
+ LIQUID_SOURCE
+};
+
+class MapNode;
+class NodeMetadata;
+
+struct ContentFeatures
+{
+ // If non-NULL, content is translated to this when deserialized
+ //MapNode *translate_to;
+
+ // Type of MapNode::param
+ ContentParamType param_type;
+
+ /*
+ 0: up
+ 1: down
+ 2: right
+ 3: left
+ 4: back
+ 5: front
+ */
+ TileSpec tiles[6];
+
+ video::ITexture *inventory_texture;
+
+ bool is_ground_content;
+ bool light_propagates;
+ bool sunlight_propagates;
+ u8 solidness; // Used when choosing which face is drawn
+ // This is used for collision detection.
+ // Also for general solidness queries.
+ bool walkable;
+ // Player can point to these
+ bool pointable;
+ // Player can dig these
+ bool diggable;
+ // Player can build on these
+ bool buildable_to;
+ // Whether the node has no liquid, source liquid or flowing liquid
+ enum LiquidType liquid_type;
+ // If true, param2 is set to direction when placed. Used for torches.
+ // NOTE: the direction format is quite inefficient and should be changed
+ bool wall_mounted;
+ // If true, node is equivalent to air. Torches are, air is. Water is not.
+ // Is used for example to check whether a mud block can have grass on.
+ bool air_equivalent;
+
+ // Inventory item string as which the node appears in inventory when dug.
+ // Mineral overrides this.
+ std::string dug_item;
+
+ // Initial metadata is cloned from this
+ NodeMetadata *initial_metadata;
+
+ // If the content is liquid, this is the flowing version of the liquid.
+ // If content is flowing liquid, this is the same content.
+ u8 liquid_alternative_flowing;
+ // If the content is liquid, this is the source version of the liquid.
+ u8 liquid_alternative_source;
- // This is set to the number of the actual values in this enum
- USEFUL_CONTENT_COUNT
+ // Amount of light the node emits
+ u8 light_source;
+
+ // Digging properties for different tools
+ DiggingPropertiesList digging_properties;
+
+ // NOTE: Move relevant properties to here from elsewhere
+
+ void reset()
+ {
+ //translate_to = NULL;
+ param_type = CPT_NONE;
+ inventory_texture = NULL;
+ is_ground_content = false;
+ light_propagates = false;
+ sunlight_propagates = false;
+ solidness = 2;
+ walkable = true;
+ pointable = true;
+ diggable = true;
+ buildable_to = false;
+ liquid_type = LIQUID_NONE;
+ wall_mounted = false;
+ air_equivalent = false;
+ dug_item = "";
+ initial_metadata = NULL;
+ liquid_alternative_flowing = CONTENT_IGNORE;
+ light_source = 0;
+ digging_properties.clear();
+ }
+
+ ContentFeatures()
+ {
+ reset();
+ }
+
+ ~ContentFeatures();
+
+ /*
+ Quickhands for simple materials
+ */
+
+ void setTexture(u16 i, std::string name, u8 alpha=255);
+
+ void setAllTextures(std::string name, u8 alpha=255)
+ {
+ for(u16 i=0; i<6; i++)
+ {
+ setTexture(i, name, alpha);
+ }
+ // Force inventory texture too
+ setInventoryTexture(name);
+ }
+
+ void setTile(u16 i, const TileSpec &tile)
+ {
+ tiles[i] = tile;
+ }
+ void setAllTiles(const TileSpec &tile)
+ {
+ for(u16 i=0; i<6; i++)
+ {
+ setTile(i, tile);
+ }
+ }
+
+ void setInventoryTexture(std::string imgname);
+
+ void setInventoryTextureCube(std::string top,
+ std::string left, std::string right);
};
-extern u16 g_content_tiles[USEFUL_CONTENT_COUNT][6];
-extern const char * g_content_inventory_textures[USEFUL_CONTENT_COUNT];
+/*
+ Call this to access the ContentFeature list
+*/
+ContentFeatures & content_features(u8 i);
+
+
+/*
+ Here is a bunch of DEPRECATED functions.
+*/
/*
If true, the material allows light propagation and brightness is stored
in param.
+ NOTE: Don't use, use "content_features(m).whatever" instead
*/
inline bool light_propagates_content(u8 m)
{
- return (m == CONTENT_AIR || m == CONTENT_TORCH || m == CONTENT_WATER || m == CONTENT_OCEAN);
+ return content_features(m).light_propagates;
}
-
/*
If true, the material allows lossless sunlight propagation.
+ NOTE: It doesn't seem to go through torches regardlessly of this
+ NOTE: Don't use, use "content_features(m).whatever" instead
*/
inline bool sunlight_propagates_content(u8 m)
{
- return (m == CONTENT_AIR || m == CONTENT_TORCH);
+ return content_features(m).sunlight_propagates;
}
-
/*
On a node-node surface, the material of the node with higher solidness
is used for drawing.
0: Invisible
1: Transparent
2: Opaque
+ NOTE: Don't use, use "content_features(m).whatever" instead
*/
inline u8 content_solidness(u8 m)
{
- // As of now, every pseudo node like torches are added to this
- if(m == CONTENT_AIR || m == CONTENT_TORCH)
- return 0;
- if(m == CONTENT_WATER || m == CONTENT_OCEAN)
- return 1;
- return 2;
+ return content_features(m).solidness;
}
-
// Objects collide with walkable contents
+// NOTE: Don't use, use "content_features(m).whatever" instead
inline bool content_walkable(u8 m)
{
- return (m != CONTENT_AIR && m != CONTENT_WATER && m != CONTENT_OCEAN && m != CONTENT_TORCH);
+ return content_features(m).walkable;
}
-
-// A liquid resists fast movement
+// NOTE: Don't use, use "content_features(m).whatever" instead
inline bool content_liquid(u8 m)
{
- return (m == CONTENT_WATER || m == CONTENT_OCEAN);
+ return content_features(m).liquid_type != LIQUID_NONE;
+}
+// NOTE: Don't use, use "content_features(m).whatever" instead
+inline bool content_flowing_liquid(u8 m)
+{
+ return content_features(m).liquid_type == LIQUID_FLOWING;
+}
+// NOTE: Don't use, use "content_features(m).whatever" instead
+inline bool content_liquid_source(u8 m)
+{
+ return content_features(m).liquid_type == LIQUID_SOURCE;
+}
+// CONTENT_WATER || CONTENT_WATERSOURCE -> CONTENT_WATER
+// CONTENT_LAVA || CONTENT_LAVASOURCE -> CONTENT_LAVA
+// NOTE: Don't use, use "content_features(m).whatever" instead
+inline u8 make_liquid_flowing(u8 m)
+{
+ u8 c = content_features(m).liquid_alternative_flowing;
+ assert(c != CONTENT_IGNORE);
+ return c;
}
-
// Pointable contents can be pointed to in the map
+// NOTE: Don't use, use "content_features(m).whatever" instead
inline bool content_pointable(u8 m)
{
- return (m != CONTENT_AIR && m != CONTENT_WATER && m != CONTENT_OCEAN);
+ return content_features(m).pointable;
}
-
+// NOTE: Don't use, use "content_features(m).whatever" instead
inline bool content_diggable(u8 m)
{
- return (m != CONTENT_AIR && m != CONTENT_WATER && m != CONTENT_OCEAN);
+ return content_features(m).diggable;
}
-
+// NOTE: Don't use, use "content_features(m).whatever" instead
inline bool content_buildable_to(u8 m)
{
- return (m == CONTENT_AIR || m == CONTENT_WATER || m == CONTENT_OCEAN);
+ return content_features(m).buildable_to;
}
-/*
- Returns true for contents that form the base ground that
- follows the main heightmap
-*/
-inline bool is_ground_content(u8 m)
-{
- return(
- m == CONTENT_STONE ||
- m == CONTENT_GRASS ||
- m == CONTENT_GRASS_FOOTSTEPS ||
- m == CONTENT_MESE ||
- m == CONTENT_MUD
- );
-}
-
-/*inline bool content_has_faces(u8 c)
-{
- return (m != CONTENT_IGNORE
- && m != CONTENT_AIR
- && m != CONTENT_TORCH);
-}*/
-
/*
Nodes make a face if contents differ and solidness differs.
Return value:
return 0;
bool contents_differ = (m1 != m2);
+
+ // Contents don't differ for different forms of same liquid
+ if(content_liquid(m1) && content_liquid(m2)
+ && make_liquid_flowing(m1) == make_liquid_flowing(m2))
+ contents_differ = false;
+
bool solidness_differs = (content_solidness(m1) != content_solidness(m2));
bool makes_face = contents_differ && solidness_differs;
return 2;
}
-inline bool liquid_replaces_content(u8 c)
-{
- return (c == CONTENT_AIR || c == CONTENT_TORCH);
-}
-
-/*
- When placing a node, drection info is added to it if this is true
-*/
-inline bool content_directional(u8 c)
-{
- return (c == CONTENT_TORCH);
-}
-
/*
Packs directions like (1,0,0), (1,-1,0)
*/
return d;
}
-inline u16 content_tile(u8 c, v3s16 dir)
-{
- if(c == CONTENT_IGNORE || c == CONTENT_AIR
- || c >= USEFUL_CONTENT_COUNT)
- return TILE_NONE;
-
- s32 dir_i = -1;
-
- if(dir == v3s16(0,1,0))
- dir_i = 0;
- else if(dir == v3s16(0,-1,0))
- dir_i = 1;
- else if(dir == v3s16(1,0,0))
- dir_i = 2;
- else if(dir == v3s16(-1,0,0))
- dir_i = 3;
- else if(dir == v3s16(0,0,1))
- dir_i = 4;
- else if(dir == v3s16(0,0,-1))
- dir_i = 5;
-
- /*if(dir_i == -1)
- return TILE_NONE;*/
- assert(dir_i != -1);
-
- return g_content_tiles[c][dir_i];
-}
+/*
+ facedir: CPT_FACEDIR_SIMPLE param1 value
+ dir: The face for which stuff is wanted
+ return value: The face from which the stuff is actually found
+*/
+v3s16 facedir_rotate(u8 facedir, v3s16 dir);
enum LightBank
{
LIGHTBANK_NIGHT
};
+/*
+ Masks for MapNode.param2 of flowing liquids
+ */
+#define LIQUID_LEVEL_MASK 0x07
+#define LIQUID_FLOW_DOWN_MASK 0x08
+
+/*
+ This is the stuff what the whole world consists of.
+*/
+
+
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.
+ - Mineral content (should be removed from here)
+ - Uhh... well, most blocks have light or nothing in here.
*/
- s8 param;
+ union
+ {
+ u8 param1;
+ s8 param;
+ };
+ /*
+ The second parameter. Initialized to 0.
+ E.g. direction for torches and flowing water.
+ */
union
{
- /*
- Pressure for liquids
- */
- u8 pressure;
-
- /*
- Direction for torches and other stuff.
- If possible, packed with packDir.
- */
+ u8 param2;
u8 dir;
};
*this = n;
}
- MapNode(u8 data=CONTENT_AIR, u8 a_param=0, u8 a_pressure=0)
+ MapNode(u8 data=CONTENT_AIR, u8 a_param=0, u8 a_param2=0)
{
d = data;
param = a_param;
- pressure = a_pressure;
+ param2 = a_param2;
}
bool operator==(const MapNode &other)
{
return (d == other.d
&& param == other.param
- && pressure == other.pressure);
+ && 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
+ */
bool light_propagates()
{
return light_propagates_content(d);
}
-
bool sunlight_propagates()
{
return sunlight_propagates_content(d);
}
-
u8 solidness()
{
return content_solidness(d);
}
-
u8 light_source()
{
- /*
- Note that a block that isn't light_propagates() can be a light source.
- */
- if(d == CONTENT_TORCH)
- return LIGHT_MAX;
-
- return 0;
+ return content_features(d).light_source;
}
u8 getLightBanksWithSource()
// Select the brightest of [light source, propagated light]
u8 lightday = 0;
u8 lightnight = 0;
- if(light_propagates())
+ if(content_features(d).param_type == CPT_LIGHT)
{
lightday = param & 0x0f;
lightnight = (param>>4)&0x0f;
return (lightday&0x0f) | ((lightnight<<4)&0xf0);
}
- void setLightBanks(u8 a_light)
- {
- param = a_light;
- }
-
u8 getLight(enum LightBank bank)
{
// Select the brightest of [light source, propagated light]
u8 light = 0;
- if(light_propagates())
+ if(content_features(d).param_type == CPT_LIGHT)
{
if(bank == LIGHTBANK_DAY)
light = param & 0x0f;
}
// 0 <= daylight_factor <= 1000
+ // 0 <= return value <= LIGHT_SUN
u8 getLightBlend(u32 daylight_factor)
{
u8 l = ((daylight_factor * getLight(LIGHTBANK_DAY)
l = max;
return l;
}
+ /*// 0 <= daylight_factor <= 1000
+ // 0 <= return value <= 255
+ u8 getLightBlend(u32 daylight_factor)
+ {
+ u8 daylight = decode_light(getLight(LIGHTBANK_DAY));
+ u8 nightlight = decode_light(getLight(LIGHTBANK_NIGHT));
+ u8 mix = ((daylight_factor * daylight
+ + (1000-daylight_factor) * nightlight)
+ )/1000;
+ return mix;
+ }*/
void setLight(enum LightBank bank, u8 a_light)
{
- // If not transparent, can't set light
- if(light_propagates() == false)
+ // If node doesn't contain light data, ignore this
+ if(content_features(d).param_type != CPT_LIGHT)
return;
if(bank == LIGHTBANK_DAY)
{
else
assert(0);
}
-
- u16 getTile(v3s16 dir)
- {
- return content_tile(d, dir);
- }
-
+
+ // In mapnode.cpp
+ /*
+ Get tile of a face of the node.
+ dir: direction of face
+ Returns: TileSpec. Can contain miscellaneous texture coordinates,
+ which must be obeyed so that the texture atlas can be used.
+ */
+ TileSpec getTile(v3s16 dir);
+
+ /*
+ Gets mineral content of node, if there is any.
+ 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
+ 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] = pressure;
- }
- }
- 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];
- pressure = source[2];
- }
- }
+ static u32 serializedLength(u8 version);
+ void serialize(u8 *dest, u8 version);
+ void deSerialize(u8 *source, u8 version);
+
};
/*
- Returns integer position of the node in given
- floating point position.
-*/
-inline v3s16 floatToInt(v3f p)
-{
- v3s16 p2(
- (p.X + (p.X>0 ? BS/2 : -BS/2))/BS,
- (p.Y + (p.Y>0 ? BS/2 : -BS/2))/BS,
- (p.Z + (p.Z>0 ? BS/2 : -BS/2))/BS);
- return p2;
-}
-
-inline v3f intToFloat(v3s16 p)
-{
- v3f p2(
- p.X * BS,
- p.Y * BS,
- p.Z * BS
- );
- return p2;
-}
-
+ Gets lighting value at face of node
+
+ Parameters must consist of air and !air.
+ Order doesn't matter.
+ If either of the nodes doesn't exist, light is 0.
+
+ parameters:
+ daynight_ratio: 0...1000
+ n: getNodeParent(p)
+ n2: getNodeParent(p + face_dir)
+ face_dir: axis oriented unit vector from p to p2
+
+ returns encoded light value.
+*/
+u8 getFaceLight(u32 daynight_ratio, MapNode n, MapNode n2,
+ v3s16 face_dir);
#endif
projects / dragonfireclient.git / blobdiff