51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#include "common_irrlicht.h"
#include "mapnode.h"
-#include "tile.h"
+#include "porting.h"
+#include <string>
+#include "mineral.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
+#ifndef SERVER
/*
- Face directions:
- 0: up
- 1: down
- 2: right
- 3: left
- 4: back
- 5: front
+ Nodes make a face if contents differ and solidness differs.
+ Return value:
+ 0: No face
+ 1: Face uses m1's content
+ 2: Face uses m2's content
+ equivalent: Whether the blocks share the same face (eg. water and glass)
+
+ TODO: Add 3: Both faces drawn with backface culling, remove equivalent
*/
-u16 g_content_tiles[USEFUL_CONTENT_COUNT][6] =
+u8 face_contents(content_t m1, content_t m2, bool *equivalent,
+ INodeDefManager *nodemgr)
+{
+ *equivalent = false;
+
+ if(m1 == CONTENT_IGNORE || m2 == CONTENT_IGNORE)
+ return 0;
+
+ bool contents_differ = (m1 != m2);
+
+ const ContentFeatures &f1 = nodemgr->get(m1);
+ const ContentFeatures &f2 = nodemgr->get(m2);
+
+ // Contents don't differ for different forms of same liquid
+ if(f1.sameLiquid(f2))
+ contents_differ = false;
+
+ u8 c1 = f1.solidness;
+ u8 c2 = f2.solidness;
+
+ bool solidness_differs = (c1 != c2);
+ bool makes_face = contents_differ && solidness_differs;
+
+ if(makes_face == false)
+ return 0;
+
+ if(c1 == 0)
+ c1 = f1.visual_solidness;
+ if(c2 == 0)
+ c2 = f2.visual_solidness;
+
+ if(c1 == c2){
+ *equivalent = true;
+ // If same solidness, liquid takes precense
+ if(f1.isLiquid())
+ return 1;
+ if(f2.isLiquid())
+ return 2;
+ }
+
+ if(c1 > c2)
+ return 1;
+ else
+ return 2;
+}
+#endif
+
+v3s16 facedir_rotate(u8 facedir, v3s16 dir)
+{
+ /*
+ Face 2 (normally Z-) direction:
+ facedir=0: Z-
+ facedir=1: X-
+ facedir=2: Z+
+ facedir=3: X+
+ */
+ v3s16 newdir;
+ if(facedir==0) // Same
+ newdir = v3s16(dir.X, dir.Y, dir.Z);
+ else if(facedir == 1) // Face is taken from rotXZccv(-90)
+ newdir = v3s16(-dir.Z, dir.Y, dir.X);
+ else if(facedir == 2) // Face is taken from rotXZccv(180)
+ newdir = v3s16(-dir.X, dir.Y, -dir.Z);
+ else if(facedir == 3) // Face is taken from rotXZccv(90)
+ newdir = v3s16(dir.Z, dir.Y, -dir.X);
+ else
+ newdir = dir;
+ return newdir;
+}
+
+u8 packDir(v3s16 dir)
+{
+ u8 b = 0;
+
+ if(dir.X > 0)
+ b |= (1<<0);
+ else if(dir.X < 0)
+ b |= (1<<1);
+
+ if(dir.Y > 0)
+ b |= (1<<2);
+ else if(dir.Y < 0)
+ b |= (1<<3);
+
+ if(dir.Z > 0)
+ b |= (1<<4);
+ else if(dir.Z < 0)
+ b |= (1<<5);
+
+ return b;
+}
+v3s16 unpackDir(u8 b)
+{
+ v3s16 d(0,0,0);
+
+ if(b & (1<<0))
+ d.X = 1;
+ else if(b & (1<<1))
+ d.X = -1;
+
+ if(b & (1<<2))
+ d.Y = 1;
+ else if(b & (1<<3))
+ d.Y = -1;
+
+ if(b & (1<<4))
+ d.Z = 1;
+ else if(b & (1<<5))
+ d.Z = -1;
+
+ return d;
+}
+
+/*
+ MapNode
+*/
+
+// Create directly from a nodename
+// If name is unknown, sets CONTENT_IGNORE
+MapNode::MapNode(INodeDefManager *ndef, const std::string &name,
+ u8 a_param1, u8 a_param2)
+{
+ content_t id = CONTENT_IGNORE;
+ ndef->getId(name, id);
+ param1 = a_param1;
+ param2 = a_param2;
+ // Set content (param0 and (param2&0xf0)) after other params
+ // because this needs to override part of param2
+ setContent(id);
+}
+
+void MapNode::setLight(enum LightBank bank, u8 a_light, INodeDefManager *nodemgr)
{
- {TILE_STONE,TILE_STONE,TILE_STONE,TILE_STONE,TILE_STONE,TILE_STONE},
- {TILE_GRASS,TILE_MUD,TILE_MUD_WITH_GRASS,TILE_MUD_WITH_GRASS,TILE_MUD_WITH_GRASS,TILE_MUD_WITH_GRASS},
- {TILE_WATER,TILE_WATER,TILE_WATER,TILE_WATER,TILE_WATER,TILE_WATER},
- {TILE_NONE,TILE_NONE,TILE_NONE,TILE_NONE,TILE_NONE,TILE_NONE},
- {TILE_TREE_TOP,TILE_TREE_TOP,TILE_TREE,TILE_TREE,TILE_TREE,TILE_TREE},
- {TILE_LEAVES,TILE_LEAVES,TILE_LEAVES,TILE_LEAVES,TILE_LEAVES,TILE_LEAVES},
- {TILE_GRASS_FOOTSTEPS,TILE_MUD,TILE_MUD_WITH_GRASS,TILE_MUD_WITH_GRASS,TILE_MUD_WITH_GRASS,TILE_MUD_WITH_GRASS},
- {TILE_MESE,TILE_MESE,TILE_MESE,TILE_MESE,TILE_MESE,TILE_MESE},
- {TILE_MUD,TILE_MUD,TILE_MUD,TILE_MUD,TILE_MUD,TILE_MUD},
- {TILE_WATER,TILE_WATER,TILE_WATER,TILE_WATER,TILE_WATER,TILE_WATER},
- {TILE_CLOUD,TILE_CLOUD,TILE_CLOUD,TILE_CLOUD,TILE_CLOUD,TILE_CLOUD},
- {TILE_COALSTONE,TILE_COALSTONE,TILE_COALSTONE,TILE_COALSTONE,TILE_COALSTONE,TILE_COALSTONE},
- {TILE_WOOD,TILE_WOOD,TILE_WOOD,TILE_WOOD,TILE_WOOD,TILE_WOOD},
-};
-
-const char * g_content_inventory_textures[USEFUL_CONTENT_COUNT] =
+ // If node doesn't contain light data, ignore this
+ if(nodemgr->get(*this).param_type != CPT_LIGHT)
+ return;
+ if(bank == LIGHTBANK_DAY)
+ {
+ param1 &= 0xf0;
+ param1 |= a_light & 0x0f;
+ }
+ else if(bank == LIGHTBANK_NIGHT)
+ {
+ param1 &= 0x0f;
+ param1 |= (a_light & 0x0f)<<4;
+ }
+ else
+ assert(0);
+}
+
+u8 MapNode::getLight(enum LightBank bank, INodeDefManager *nodemgr) const
+{
+ // Select the brightest of [light source, propagated light]
+ u8 light = 0;
+ if(nodemgr->get(*this).param_type == CPT_LIGHT)
+ {
+ if(bank == LIGHTBANK_DAY)
+ light = param1 & 0x0f;
+ else if(bank == LIGHTBANK_NIGHT)
+ light = (param1>>4)&0x0f;
+ else
+ assert(0);
+ }
+ if(nodemgr->get(*this).light_source > light)
+ light = nodemgr->get(*this).light_source;
+ return light;
+}
+
+u8 MapNode::getLightBanksWithSource(INodeDefManager *nodemgr) const
+{
+ // Select the brightest of [light source, propagated light]
+ u8 lightday = 0;
+ u8 lightnight = 0;
+ if(nodemgr->get(*this).param_type == CPT_LIGHT)
+ {
+ lightday = param1 & 0x0f;
+ lightnight = (param1>>4)&0x0f;
+ }
+ if(nodemgr->get(*this).light_source > lightday)
+ lightday = nodemgr->get(*this).light_source;
+ if(nodemgr->get(*this).light_source > lightnight)
+ lightnight = nodemgr->get(*this).light_source;
+ return (lightday&0x0f) | ((lightnight<<4)&0xf0);
+}
+
+u8 MapNode::getMineral(INodeDefManager *nodemgr) const
+{
+ if(nodemgr->get(*this).param_type == CPT_MINERAL)
+ {
+ return param1 & 0x0f;
+ }
+
+ return MINERAL_NONE;
+}
+
+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)
+ return 2;
+ else
+ return 3;
+}
+void MapNode::serialize(u8 *dest, u8 version)
{
- "../data/stone.png",
- "../data/grass.png",
- "../data/water.png",
- "../data/torch_on_floor.png",
- "../data/tree_top.png",
- "../data/leaves.png",
- "../data/grass_footsteps.png",
- "../data/mese.png",
- "../data/mud.png",
- "../data/water.png",
- "../data/cloud.png",
- "../data/coalstone.png",
- "../data/wood.png",
-};
+ if(!ser_ver_supported(version))
+ throw VersionMismatchException("ERROR: MapNode format not supported");
+
+ // Translate to wanted version
+ MapNode n_foreign = mapnode_translate_from_internal(*this, version);
+
+ u8 actual_param0 = n_foreign.param0;
+
+ // Convert special values from new version to old
+ if(version <= 18)
+ {
+ // In these versions, CONTENT_IGNORE and CONTENT_AIR
+ // are 255 and 254
+ if(actual_param0 == CONTENT_IGNORE)
+ actual_param0 = 255;
+ else if(actual_param0 == CONTENT_AIR)
+ actual_param0 = 254;
+ }
+
+ if(version == 0)
+ {
+ dest[0] = actual_param0;
+ }
+ else if(version <= 9)
+ {
+ dest[0] = actual_param0;
+ dest[1] = n_foreign.param1;
+ }
+ else
+ {
+ dest[0] = actual_param0;
+ dest[1] = n_foreign.param1;
+ dest[2] = n_foreign.param2;
+ }
+}
+void MapNode::deSerialize(u8 *source, u8 version)
+{
+ if(!ser_ver_supported(version))
+ throw VersionMismatchException("ERROR: MapNode format not supported");
+
+ if(version == 0)
+ {
+ param0 = source[0];
+ }
+ else if(version == 1)
+ {
+ param0 = source[0];
+ }
+ else if(version <= 9)
+ {
+ param0 = source[0];
+ param1 = source[1];
+ }
+ else
+ {
+ param0 = source[0];
+ param1 = source[1];
+ param2 = source[2];
+ }
+
+ // Convert special values from old version to new
+ if(version <= 18)
+ {
+ // In these versions, CONTENT_IGNORE and CONTENT_AIR
+ // are 255 and 254
+ if(param0 == 255)
+ param0 = CONTENT_IGNORE;
+ else if(param0 == 254)
+ param0 = CONTENT_AIR;
+ }
+ // version 19 is fucked up with sometimes the old values and sometimes not
+ if(version == 19)
+ {
+ if(param0 == 255)
+ param0 = CONTENT_IGNORE;
+ else if(param0 == 254)
+ param0 = CONTENT_AIR;
+ }
+
+ // Translate to our known version
+ *this = mapnode_translate_to_internal(*this, version);
+}
+
+/*
+ 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: getNode(p) (uses only the lighting value)
+ n2: getNode(p + face_dir) (uses only the lighting value)
+ 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, INodeDefManager *nodemgr)
+{
+ try{
+ u8 light;
+ u8 l1 = n.getLightBlend(daynight_ratio, nodemgr);
+ u8 l2 = n2.getLightBlend(daynight_ratio, nodemgr);
+ if(l1 > l2)
+ light = l1;
+ else
+ light = l2;
+
+ // Make some nice difference to different sides
+
+ // This makes light come from a corner
+ /*if(face_dir.X == 1 || face_dir.Z == 1 || face_dir.Y == -1)
+ light = diminish_light(diminish_light(light));
+ else if(face_dir.X == -1 || face_dir.Z == -1)
+ light = diminish_light(light);*/
+
+ // All neighboring faces have different shade (like in minecraft)
+ if(face_dir.X == 1 || face_dir.X == -1 || face_dir.Y == -1)
+ light = diminish_light(diminish_light(light));
+ else if(face_dir.Z == 1 || face_dir.Z == -1)
+ light = diminish_light(light);
+
+ return light;
+ }
+ catch(InvalidPositionException &e)
+ {
+ return 0;
+ }
+}
+