/*
Gets node tile given a face direction.
*/
TileSpec getNodeTile(MapNode mn, v3s16 p, v3s16 dir, MeshMakeData *data)
{
INodeDefManager *ndef = data->m_gamedef->ndef();
// Direction must be (1,0,0), (-1,0,0), (0,1,0), (0,-1,0),
// (0,0,1), (0,0,-1) or (0,0,0)
assert(dir.X * dir.X + dir.Y * dir.Y + dir.Z * dir.Z <= 1);
// Convert direction to single integer for table lookup
// 0 = (0,0,0)
// 1 = (1,0,0)
// 2 = (0,1,0)
// 3 = (0,0,1)
// 4 = invalid, treat as (0,0,0)
// 5 = (0,0,-1)
// 6 = (0,-1,0)
// 7 = (-1,0,0)
u8 dir_i = (dir.X + 2 * dir.Y + 3 * dir.Z) & 7;
// Get rotation for things like chests
u8 facedir = mn.getFaceDir(ndef);
assert(facedir <= 3);
static const u8 dir_to_tile[4 * 8] =
{
// 0 +X +Y +Z 0 -Z -Y -X
0, 2, 0, 4, 0, 5, 1, 3, // facedir = 0
0, 4, 0, 3, 0, 2, 1, 5, // facedir = 1
0, 3, 0, 5, 0, 4, 1, 2, // facedir = 2
0, 5, 0, 2, 0, 3, 1, 4, // facedir = 3
};
u8 tileindex = dir_to_tile[facedir*8 + dir_i];
return getNodeTileN(mn, p, tileindex, data);
}
/*
Gets node tile given a face direction.
*/
TileSpec getNodeTile(MapNode mn, v3s16 p, v3s16 dir, MeshMakeData *data)
{
INodeDefManager *ndef = data->m_gamedef->ndef();
// Direction must be (1,0,0), (-1,0,0), (0,1,0), (0,-1,0),
// (0,0,1), (0,0,-1) or (0,0,0)
assert(dir.X * dir.X + dir.Y * dir.Y + dir.Z * dir.Z <= 1);
// Convert direction to single integer for table lookup
// 0 = (0,0,0)
// 1 = (1,0,0)
// 2 = (0,1,0)
// 3 = (0,0,1)
// 4 = invalid, treat as (0,0,0)
// 5 = (0,0,-1)
// 6 = (0,-1,0)
// 7 = (-1,0,0)
u8 dir_i = ((dir.X + 2 * dir.Y + 3 * dir.Z) & 7)*2;
// Get rotation for things like chests
u8 facedir = mn.getFaceDir(ndef);
if (facedir > 23)
facedir = 0;
static const u16 dir_to_tile[24 * 16] =
{
// 0 +X +Y +Z -Z -Y -X -> value=tile,rotation
0,0, 2,0 , 0,0 , 4,0 , 0,0, 5,0 , 1,0 , 3,0 , // rotate around y+ 0 - 3
0,0, 4,0 , 0,3 , 3,0 , 0,0, 2,0 , 1,1 , 5,0 ,
0,0, 3,0 , 0,2 , 5,0 , 0,0, 4,0 , 1,2 , 2,0 ,
0,0, 5,0 , 0,1 , 2,0 , 0,0, 3,0 , 1,3 , 4,0 ,
0,0, 2,3 , 5,0 , 0,2 , 0,0, 1,0 , 4,2 , 3,1 , // rotate around z+ 4 - 7
0,0, 4,3 , 2,0 , 0,3 , 0,0, 1,1 , 3,2 , 5,1 ,
0,0, 3,3 , 4,0 , 0,0 , 0,0, 1,2 , 5,2 , 2,1 ,
0,0, 5,3 , 3,0 , 0,1 , 0,0, 1,3 , 2,2 , 4,1 ,
0,0, 2,1 , 4,2 , 1,2 , 0,0, 0,0 , 5,0 , 3,3 , // rotate around z- 8 - 11
0,0, 4,1 , 3,2 , 1,3 , 0,0, 0,3 , 2,0 , 5,3 ,
0,0, 3,1 , 5,2 , 1,0 , 0,0, 0,2 , 4,0 , 2,3 ,
0,0, 5,1 , 2,2 , 1,1 , 0,0, 0,1 , 3,0 , 4,3 ,
0,0, 0,3 , 3,3 , 4,1 , 0,0, 5,3 , 2,3 , 1,3 , // rotate around x+ 12 - 15
0,0, 0,2 , 5,3 , 3,1 , 0,0, 2,3 , 4,3 , 1,0 ,
0,0, 0,1 , 2,3 , 5,1 , 0,0, 4,3 , 3,3 , 1,1 ,
0,0, 0,0 , 4,3 , 2,1 , 0,0, 3,3 , 5,3 , 1,2 ,
0,0, 1,1 , 2,1 , 4,3 , 0,0, 5,1 , 3,1 , 0,1 , // rotate around x- 16 - 19
0,0, 1,2 , 4,1 , 3,3 , 0,0, 2,1 , 5,1 , 0,0 ,
0,0, 1,3 , 3,1 , 5,3 , 0,0, 4,1 , 2,1 , 0,3 ,
0,0, 1,0 , 5,1 , 2,3 , 0,0, 3,1 , 4,1 , 0,2 ,
0,0, 3,2 , 1,2 , 4,2 , 0,0, 5,2 , 0,2 , 2,2 , // rotate around y- 20 - 23
0,0, 5,2 , 1,3 , 3,2 , 0,0, 2,2 , 0,1 , 4,2 ,
0,0, 2,2 , 1,0 , 5,2 , 0,0, 4,2 , 0,0 , 3,2 ,
0,0, 4,2 , 1,1 , 2,2 , 0,0, 3,2 , 0,3 , 5,2
};
u16 tile_index=facedir*16 + dir_i;
TileSpec spec = getNodeTileN(mn, p, dir_to_tile[tile_index], data);
spec.rotation=dir_to_tile[tile_index + 1];
spec.texture = data->m_gamedef->tsrc()->getTexture(spec.texture_id);
return spec;
}
void mapblock_mesh_generate_special(MeshMakeData *data,
MeshCollector &collector)
{
INodeDefManager *nodedef = data->m_gamedef->ndef();
// 0ms
//TimeTaker timer("mapblock_mesh_generate_special()");
/*
Some settings
*/
bool new_style_water = g_settings->getBool("new_style_water");
float node_liquid_level = 1.0;
if(new_style_water)
node_liquid_level = 0.85;
v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;
for(s16 z=0; z<MAP_BLOCKSIZE; z++)
for(s16 y=0; y<MAP_BLOCKSIZE; y++)
for(s16 x=0; x<MAP_BLOCKSIZE; x++)
{
v3s16 p(x,y,z);
MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
const ContentFeatures &f = nodedef->get(n);
// Only solidness=0 stuff is drawn here
if(f.solidness != 0)
continue;
switch(f.drawtype){
default:
infostream<<"Got "<<f.drawtype<<std::endl;
assert(0);
break;
case NDT_AIRLIKE:
break;
case NDT_LIQUID:
{
/*
Add water sources to mesh if using new style
*/
TileSpec tile_liquid = f.special_tiles[0];
AtlasPointer &pa_liquid = tile_liquid.texture;
bool top_is_air = false;
MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
if(n.getContent() == CONTENT_AIR)
top_is_air = true;
if(top_is_air == false)
continue;
u16 l = getInteriorLight(n, 0, data);
video::SColor c = MapBlock_LightColor(f.alpha, l);
video::S3DVertex vertices[4] =
{
video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
pa_liquid.x0(), pa_liquid.y1()),
video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
pa_liquid.x1(), pa_liquid.y1()),
video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
pa_liquid.x1(), pa_liquid.y0()),
video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
pa_liquid.x0(), pa_liquid.y0()),
};
v3f offset(p.X, p.Y + (-0.5+node_liquid_level)*BS, p.Z);
for(s32 i=0; i<4; i++)
{
vertices[i].Pos += offset;
}
u16 indices[] = {0,1,2,2,3,0};
// Add to mesh collector
collector.append(tile_liquid, vertices, 4, indices, 6);
break;}
case NDT_FLOWINGLIQUID:
{
/*
Add flowing liquid to mesh
*/
TileSpec tile_liquid = f.special_tiles[0];
TileSpec tile_liquid_bfculled = f.special_tiles[1];
AtlasPointer &pa_liquid = tile_liquid.texture;
bool top_is_same_liquid = false;
MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
content_t c_flowing = nodedef->getId(f.liquid_alternative_flowing);
content_t c_source = nodedef->getId(f.liquid_alternative_source);
if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
top_is_same_liquid = true;
u16 l = 0;
// If this liquid emits light and doesn't contain light, draw
// it at what it emits, for an increased effect
u8 light_source = nodedef->get(n).light_source;
if(light_source != 0){
//l = decode_light(undiminish_light(light_source));
l = decode_light(light_source);
l = l | (l<<8);
}
// Use the light of the node on top if possible
else if(nodedef->get(ntop).param_type == CPT_LIGHT)
l = getInteriorLight(ntop, 0, data);
// Otherwise use the light of this node (the liquid)
else
l = getInteriorLight(n, 0, data);
video::SColor c = MapBlock_LightColor(f.alpha, l);
// Neighbor liquid levels (key = relative position)
// Includes current node
core::map<v3s16, f32> neighbor_levels;
core::map<v3s16, content_t> neighbor_contents;
core::map<v3s16, u8> neighbor_flags;
const u8 neighborflag_top_is_same_liquid = 0x01;
v3s16 neighbor_dirs[9] = {
v3s16(0,0,0),
v3s16(0,0,1),
v3s16(0,0,-1),
v3s16(1,0,0),
v3s16(-1,0,0),
v3s16(1,0,1),
v3s16(-1,0,-1),
v3s16(1,0,-1),
v3s16(-1,0,1),
};
for(u32 i=0; i<9; i++)
{
content_t content = CONTENT_AIR;
float level = -0.5 * BS;
u8 flags = 0;
// Check neighbor
v3s16 p2 = p + neighbor_dirs[i];
MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
if(n2.getContent() != CONTENT_IGNORE)
{
content = n2.getContent();
if(n2.getContent() == c_source)
level = (-0.5+node_liquid_level) * BS;
else if(n2.getContent() == c_flowing)
level = (-0.5 + ((float)(n2.param2&LIQUID_LEVEL_MASK)
+ 0.5) / 8.0 * node_liquid_level) * BS;
// Check node above neighbor.
// NOTE: This doesn't get executed if neighbor
// doesn't exist
p2.Y += 1;
n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
if(n2.getContent() == c_source ||
n2.getContent() == c_flowing)
flags |= neighborflag_top_is_same_liquid;
}
neighbor_levels.insert(neighbor_dirs[i], level);
neighbor_contents.insert(neighbor_dirs[i], content);
neighbor_flags.insert(neighbor_dirs[i], flags);
}
// Corner heights (average between four liquids)
f32 corner_levels[4];
v3s16 halfdirs[4] = {
v3s16(0,0,0),
v3s16(1,0,0),
v3s16(1,0,1),
v3s16(0,0,1),
};
for(u32 i=0; i<4; i++)
{
v3s16 cornerdir = halfdirs[i];
float cornerlevel = 0;
u32 valid_count = 0;
u32 air_count = 0;
for(u32 j=0; j<4; j++)
{
v3s16 neighbordir = cornerdir - halfdirs[j];
content_t content = neighbor_contents[neighbordir];
// If top is liquid, draw starting from top of node
if(neighbor_flags[neighbordir] &
neighborflag_top_is_same_liquid)
{
cornerlevel = 0.5*BS;
valid_count = 1;
break;
}
// Source is always the same height
else if(content == c_source)
{
cornerlevel = (-0.5+node_liquid_level)*BS;
valid_count = 1;
break;
}
// Flowing liquid has level information
else if(content == c_flowing)
{
cornerlevel += neighbor_levels[neighbordir];
valid_count++;
}
else if(content == CONTENT_AIR)
{
air_count++;
}
}
if(air_count >= 2)
cornerlevel = -0.5*BS;
else if(valid_count > 0)
cornerlevel /= valid_count;
corner_levels[i] = cornerlevel;
}
/*
Generate sides
*/
v3s16 side_dirs[4] = {
v3s16(1,0,0),
v3s16(-1,0,0),
v3s16(0,0,1),
v3s16(0,0,-1),
};
s16 side_corners[4][2] = {
{1, 2},
{3, 0},
{2, 3},
{0, 1},
};
for(u32 i=0; i<4; i++)
{
v3s16 dir = side_dirs[i];
/*
If our topside is liquid and neighbor's topside
is liquid, don't draw side face
*/
if(top_is_same_liquid &&
neighbor_flags[dir] & neighborflag_top_is_same_liquid)
continue;
content_t neighbor_content = neighbor_contents[dir];
const ContentFeatures &n_feat = nodedef->get(neighbor_content);
// Don't draw face if neighbor is blocking the view
if(n_feat.solidness == 2)
continue;
bool neighbor_is_same_liquid = (neighbor_content == c_source
|| neighbor_content == c_flowing);
// Don't draw any faces if neighbor same is liquid and top is
// same liquid
if(neighbor_is_same_liquid == true
&& top_is_same_liquid == false)
continue;
// Use backface culled material if neighbor doesn't have a
// solidness of 0
const TileSpec *current_tile = &tile_liquid;
if(n_feat.solidness != 0 || n_feat.visual_solidness != 0)
current_tile = &tile_liquid_bfculled;
video::S3DVertex vertices[4] =
{
video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
pa_liquid.x0(), pa_liquid.y1()),
video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
pa_liquid.x1(), pa_liquid.y1()),
video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
pa_liquid.x1(), pa_liquid.y0()),
video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
pa_liquid.x0(), pa_liquid.y0()),
};
/*
If our topside is liquid, set upper border of face
at upper border of node
*/
if(top_is_same_liquid)
{
vertices[2].Pos.Y = 0.5*BS;
vertices[3].Pos.Y = 0.5*BS;
}
/*
Otherwise upper position of face is corner levels
*/
else
{
vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
}
/*
If neighbor is liquid, lower border of face is corner
liquid levels
*/
if(neighbor_is_same_liquid)
{
vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
}
/*
If neighbor is not liquid, lower border of face is
lower border of node
*/
else
{
vertices[0].Pos.Y = -0.5*BS;
vertices[1].Pos.Y = -0.5*BS;
}
for(s32 j=0; j<4; j++)
{
if(dir == v3s16(0,0,1))
vertices[j].Pos.rotateXZBy(0);
if(dir == v3s16(0,0,-1))
vertices[j].Pos.rotateXZBy(180);
if(dir == v3s16(-1,0,0))
vertices[j].Pos.rotateXZBy(90);
if(dir == v3s16(1,0,-0))
vertices[j].Pos.rotateXZBy(-90);
// Do this to not cause glitches when two liquids are
// side-by-side
/*if(neighbor_is_same_liquid == false){
vertices[j].Pos.X *= 0.98;
vertices[j].Pos.Z *= 0.98;
}*/
vertices[j].Pos += intToFloat(p, BS);
}
u16 indices[] = {0,1,2,2,3,0};
// Add to mesh collector
collector.append(*current_tile, vertices, 4, indices, 6);
}
/*
Generate top side, if appropriate
*/
if(top_is_same_liquid == false)
{
video::S3DVertex vertices[4] =
{
video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
pa_liquid.x0(), pa_liquid.y1()),
video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
pa_liquid.x1(), pa_liquid.y1()),
video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
pa_liquid.x1(), pa_liquid.y0()),
video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
pa_liquid.x0(), pa_liquid.y0()),
};
// To get backface culling right, the vertices need to go
// clockwise around the front of the face. And we happened to
// calculate corner levels in exact reverse order.
s32 corner_resolve[4] = {3,2,1,0};
for(s32 i=0; i<4; i++)
{
//vertices[i].Pos.Y += liquid_level;
//vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
s32 j = corner_resolve[i];
vertices[i].Pos.Y += corner_levels[j];
vertices[i].Pos += intToFloat(p, BS);
}
// Default downwards-flowing texture animation goes from
// -Z towards +Z, thus the direction is +Z.
// Rotate texture to make animation go in flow direction
// Positive if liquid moves towards +Z
int dz = (corner_levels[side_corners[2][0]] +
corner_levels[side_corners[2][1]] <
corner_levels[side_corners[3][0]] +
corner_levels[side_corners[3][1]]);
// Positive if liquid moves towards +X
int dx = (corner_levels[side_corners[0][0]] +
corner_levels[side_corners[0][1]] <
corner_levels[side_corners[1][0]] +
corner_levels[side_corners[1][1]]);
// -X
if(-dx >= abs(dz))
{
v2f t = vertices[0].TCoords;
vertices[0].TCoords = vertices[1].TCoords;
vertices[1].TCoords = vertices[2].TCoords;
vertices[2].TCoords = vertices[3].TCoords;
vertices[3].TCoords = t;
}
// +X
if(dx >= abs(dz))
{
v2f t = vertices[0].TCoords;
vertices[0].TCoords = vertices[3].TCoords;
vertices[3].TCoords = vertices[2].TCoords;
vertices[2].TCoords = vertices[1].TCoords;
vertices[1].TCoords = t;
}
// -Z
if(-dz >= abs(dx))
{
v2f t = vertices[0].TCoords;
vertices[0].TCoords = vertices[3].TCoords;
vertices[3].TCoords = vertices[2].TCoords;
vertices[2].TCoords = vertices[1].TCoords;
vertices[1].TCoords = t;
t = vertices[0].TCoords;
vertices[0].TCoords = vertices[3].TCoords;
vertices[3].TCoords = vertices[2].TCoords;
vertices[2].TCoords = vertices[1].TCoords;
vertices[1].TCoords = t;
}
u16 indices[] = {0,1,2,2,3,0};
// Add to mesh collector
collector.append(tile_liquid, vertices, 4, indices, 6);
}
break;}
case NDT_GLASSLIKE:
{
TileSpec tile = getNodeTile(n, p, v3s16(0,0,0), data);
AtlasPointer ap = tile.texture;
u16 l = getInteriorLight(n, 1, data);
video::SColor c = MapBlock_LightColor(255, l);
for(u32 j=0; j<6; j++)
{
// Check this neighbor
v3s16 n2p = blockpos_nodes + p + g_6dirs[j];
MapNode n2 = data->m_vmanip.getNodeNoEx(n2p);
// Don't make face if neighbor is of same type
if(n2.getContent() == n.getContent())
continue;
// The face at Z+
video::S3DVertex vertices[4] =
{
video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
ap.x0(), ap.y1()),
video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
ap.x1(), ap.y1()),
video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
ap.x1(), ap.y0()),
video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
ap.x0(), ap.y0()),
};
// Rotations in the g_6dirs format
if(j == 0) // Z+
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateXZBy(0);
else if(j == 1) // Y+
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateYZBy(-90);
else if(j == 2) // X+
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateXZBy(-90);
else if(j == 3) // Z-
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateXZBy(180);
else if(j == 4) // Y-
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateYZBy(90);
else if(j == 5) // X-
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateXZBy(90);
for(u16 i=0; i<4; i++){
vertices[i].Pos += intToFloat(p, BS);
}
u16 indices[] = {0,1,2,2,3,0};
// Add to mesh collector
collector.append(tile, vertices, 4, indices, 6);
}
break;}
case NDT_ALLFACES:
{
TileSpec tile_leaves = getNodeTile(n, p,
v3s16(0,0,0), data);
AtlasPointer pa_leaves = tile_leaves.texture;
u16 l = getInteriorLight(n, 1, data);
video::SColor c = MapBlock_LightColor(255, l);
v3f pos = intToFloat(p, BS);
aabb3f box(-BS/2,-BS/2,-BS/2,BS/2,BS/2,BS/2);
box.MinEdge += pos;
box.MaxEdge += pos;
makeCuboid(&collector, box, &tile_leaves, 1, c, NULL);
break;}
case NDT_ALLFACES_OPTIONAL:
// This is always pre-converted to something else
assert(0);
break;
case NDT_TORCHLIKE:
{
v3s16 dir = n.getWallMountedDir(nodedef);
u8 tileindex = 0;
if(dir == v3s16(0,-1,0)){
tileindex = 0; // floor
} else if(dir == v3s16(0,1,0)){
tileindex = 1; // ceiling
// For backwards compatibility
} else if(dir == v3s16(0,0,0)){
tileindex = 0; // floor
} else {
tileindex = 2; // side
}
TileSpec tile = getNodeTileN(n, p, tileindex, data);
tile.material_flags &= ~MATERIAL_FLAG_BACKFACE_CULLING;
tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
AtlasPointer ap = tile.texture;
video::SColor c(255,255,255,255);
// Wall at X+ of node
video::S3DVertex vertices[4] =
{
video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
ap.x0(), ap.y1()),
video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
ap.x1(), ap.y1()),
video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
ap.x1(), ap.y0()),
video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
ap.x0(), ap.y0()),
};
for(s32 i=0; i<4; i++)
{
if(dir == v3s16(1,0,0))
vertices[i].Pos.rotateXZBy(0);
if(dir == v3s16(-1,0,0))
vertices[i].Pos.rotateXZBy(180);
if(dir == v3s16(0,0,1))
vertices[i].Pos.rotateXZBy(90);
if(dir == v3s16(0,0,-1))
vertices[i].Pos.rotateXZBy(-90);
if(dir == v3s16(0,-1,0))
vertices[i].Pos.rotateXZBy(45);
if(dir == v3s16(0,1,0))
vertices[i].Pos.rotateXZBy(-45);
vertices[i].Pos += intToFloat(p, BS);
}
u16 indices[] = {0,1,2,2,3,0};
// Add to mesh collector
collector.append(tile, vertices, 4, indices, 6);
break;}
case NDT_SIGNLIKE:
{
TileSpec tile = getNodeTileN(n, p, 0, data);
tile.material_flags &= ~MATERIAL_FLAG_BACKFACE_CULLING;
tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
AtlasPointer ap = tile.texture;
u16 l = getInteriorLight(n, 0, data);
video::SColor c = MapBlock_LightColor(255, l);
float d = (float)BS/16;
// Wall at X+ of node
video::S3DVertex vertices[4] =
{
video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c,
ap.x0(), ap.y0()),
video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c,
ap.x1(), ap.y0()),
video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c,
ap.x1(), ap.y1()),
video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c,
ap.x0(), ap.y1()),
};
v3s16 dir = n.getWallMountedDir(nodedef);
for(s32 i=0; i<4; i++)
{
if(dir == v3s16(1,0,0))
vertices[i].Pos.rotateXZBy(0);
if(dir == v3s16(-1,0,0))
vertices[i].Pos.rotateXZBy(180);
if(dir == v3s16(0,0,1))
vertices[i].Pos.rotateXZBy(90);
if(dir == v3s16(0,0,-1))
vertices[i].Pos.rotateXZBy(-90);
if(dir == v3s16(0,-1,0))
vertices[i].Pos.rotateXYBy(-90);
if(dir == v3s16(0,1,0))
vertices[i].Pos.rotateXYBy(90);
vertices[i].Pos += intToFloat(p, BS);
}
u16 indices[] = {0,1,2,2,3,0};
// Add to mesh collector
collector.append(tile, vertices, 4, indices, 6);
break;}
case NDT_PLANTLIKE:
{
TileSpec tile = getNodeTileN(n, p, 0, data);
tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
AtlasPointer ap = tile.texture;
u16 l = getInteriorLight(n, 1, data);
video::SColor c = MapBlock_LightColor(255, l);
for(u32 j=0; j<4; j++)
{
video::S3DVertex vertices[4] =
{
video::S3DVertex(-BS/2*f.visual_scale,-BS/2,0, 0,0,0, c,
ap.x0(), ap.y1()),
video::S3DVertex( BS/2*f.visual_scale,-BS/2,0, 0,0,0, c,
ap.x1(), ap.y1()),
video::S3DVertex( BS/2*f.visual_scale,
-BS/2 + f.visual_scale*BS,0, 0,0,0, c,
ap.x1(), ap.y0()),
video::S3DVertex(-BS/2*f.visual_scale,
-BS/2 + f.visual_scale*BS,0, 0,0,0, c,
ap.x0(), ap.y0()),
};
if(j == 0)
{
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateXZBy(45);
}
else if(j == 1)
{
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateXZBy(-45);
}
else if(j == 2)
{
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateXZBy(135);
}
else if(j == 3)
{
for(u16 i=0; i<4; i++)
vertices[i].Pos.rotateXZBy(-135);
}
for(u16 i=0; i<4; i++)
{
vertices[i].Pos *= f.visual_scale;
vertices[i].Pos += intToFloat(p, BS);
}
u16 indices[] = {0,1,2,2,3,0};
// Add to mesh collector
collector.append(tile, vertices, 4, indices, 6);
}
break;}
case NDT_FENCELIKE:
{
TileSpec tile = getNodeTile(n, p, v3s16(0,0,0), data);
TileSpec tile_nocrack = tile;
tile_nocrack.material_flags &= ~MATERIAL_FLAG_CRACK;
// A hack to put wood the right way around in the posts
ITextureSource *tsrc = data->m_gamedef->tsrc();
TileSpec tile_rot = tile;
tile_rot.texture = tsrc->getTexture(tsrc->getTextureName(
tile.texture.id) + "^[transformR90");
u16 l = getInteriorLight(n, 1, data);
video::SColor c = MapBlock_LightColor(255, l);
const f32 post_rad=(f32)BS/8;
const f32 bar_rad=(f32)BS/16;
const f32 bar_len=(f32)(BS/2)-post_rad;
v3f pos = intToFloat(p, BS);
// The post - always present
aabb3f post(-post_rad,-BS/2,-post_rad,post_rad,BS/2,post_rad);
post.MinEdge += pos;
post.MaxEdge += pos;
f32 postuv[24]={
6/16.,6/16.,10/16.,10/16.,
6/16.,6/16.,10/16.,10/16.,
0/16.,0,4/16.,1,
4/16.,0,8/16.,1,
8/16.,0,12/16.,1,
12/16.,0,16/16.,1};
makeCuboid(&collector, post, &tile_rot, 1, c, postuv);
// Now a section of fence, +X, if there's a post there
v3s16 p2 = p;
p2.X++;
MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
const ContentFeatures *f2 = &nodedef->get(n2);
if(f2->drawtype == NDT_FENCELIKE)
{
aabb3f bar(-bar_len+BS/2,-bar_rad+BS/4,-bar_rad,
bar_len+BS/2,bar_rad+BS/4,bar_rad);
bar.MinEdge += pos;
bar.MaxEdge += pos;
f32 xrailuv[24]={
0/16.,2/16.,16/16.,4/16.,
0/16.,4/16.,16/16.,6/16.,
6/16.,6/16.,8/16.,8/16.,
10/16.,10/16.,12/16.,12/16.,
0/16.,8/16.,16/16.,10/16.,
0/16.,14/16.,16/16.,16/16.};
makeCuboid(&collector, bar, &tile_nocrack, 1,
c, xrailuv);
bar.MinEdge.Y -= BS/2;
bar.MaxEdge.Y -= BS/2;
makeCuboid(&collector, bar, &tile_nocrack, 1,
c, xrailuv);
}
// Now a section of fence, +Z, if there's a post there
p2 = p;
p2.Z++;
n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
f2 = &nodedef->get(n2);
if(f2->drawtype == NDT_FENCELIKE)
{
aabb3f bar(-bar_rad,-bar_rad+BS/4,-bar_len+BS/2,
bar_rad,bar_rad+BS/4,bar_len+BS/2);
bar.MinEdge += pos;
bar.MaxEdge += pos;
f32 zrailuv[24]={
3/16.,1/16.,5/16.,5/16., // cannot rotate; stretch
4/16.,1/16.,6/16.,5/16., // for wood texture instead
0/16.,9/16.,16/16.,11/16.,
0/16.,6/16.,16/16.,8/16.,
6/16.,6/16.,8/16.,8/16.,
10/16.,10/16.,12/16.,12/16.};
makeCuboid(&collector, bar, &tile_nocrack, 1,
c, zrailuv);
bar.MinEdge.Y -= BS/2;
bar.MaxEdge.Y -= BS/2;
makeCuboid(&collector, bar, &tile_nocrack, 1,
c, zrailuv);
}
break;}
case NDT_RAILLIKE:
{
bool is_rail_x [] = { false, false }; /* x-1, x+1 */
bool is_rail_z [] = { false, false }; /* z-1, z+1 */
bool is_rail_z_minus_y [] = { false, false }; /* z-1, z+1; y-1 */
bool is_rail_x_minus_y [] = { false, false }; /* x-1, z+1; y-1 */
bool is_rail_z_plus_y [] = { false, false }; /* z-1, z+1; y+1 */
bool is_rail_x_plus_y [] = { false, false }; /* x-1, x+1; y+1 */
MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
MapNode n_plus_x_plus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1, y+1, z));
MapNode n_plus_x_minus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1, y-1, z));
MapNode n_minus_x_plus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1, y+1, z));
MapNode n_minus_x_minus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1, y-1, z));
MapNode n_plus_z_plus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y+1, z+1));
MapNode n_minus_z_plus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y+1, z-1));
MapNode n_plus_z_minus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y-1, z+1));
MapNode n_minus_z_minus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y-1, z-1));
content_t thiscontent = n.getContent();
if(n_minus_x.getContent() == thiscontent)
is_rail_x[0] = true;
if (n_minus_x_minus_y.getContent() == thiscontent)
is_rail_x_minus_y[0] = true;
if(n_minus_x_plus_y.getContent() == thiscontent)
is_rail_x_plus_y[0] = true;
if(n_plus_x.getContent() == thiscontent)
is_rail_x[1] = true;
if (n_plus_x_minus_y.getContent() == thiscontent)
is_rail_x_minus_y[1] = true;
if(n_plus_x_plus_y.getContent() == thiscontent)
is_rail_x_plus_y[1] = true;
if(n_minus_z.getContent() == thiscontent)
is_rail_z[0] = true;
if (n_minus_z_minus_y.getContent() == thiscontent)
is_rail_z_minus_y[0] = true;
if(n_minus_z_plus_y.getContent() == thiscontent)
is_rail_z_plus_y[0] = true;
if(n_plus_z.getContent() == thiscontent)
is_rail_z[1] = true;
if (n_plus_z_minus_y.getContent() == thiscontent)
is_rail_z_minus_y[1] = true;
if(n_plus_z_plus_y.getContent() == thiscontent)
is_rail_z_plus_y[1] = true;
bool is_rail_x_all[] = {false, false};
bool is_rail_z_all[] = {false, false};
is_rail_x_all[0]=is_rail_x[0] || is_rail_x_minus_y[0] || is_rail_x_plus_y[0];
is_rail_x_all[1]=is_rail_x[1] || is_rail_x_minus_y[1] || is_rail_x_plus_y[1];
is_rail_z_all[0]=is_rail_z[0] || is_rail_z_minus_y[0] || is_rail_z_plus_y[0];
is_rail_z_all[1]=is_rail_z[1] || is_rail_z_minus_y[1] || is_rail_z_plus_y[1];
// reasonable default, flat straight unrotated rail
bool is_straight = true;
int adjacencies = 0;
int angle = 0;
u8 tileindex = 0;
// check for sloped rail
if (is_rail_x_plus_y[0] || is_rail_x_plus_y[1] || is_rail_z_plus_y[0] || is_rail_z_plus_y[1])
{
adjacencies = 5; //5 means sloped
is_straight = true; // sloped is always straight
}
else
{
// is really straight, rails on both sides
is_straight = (is_rail_x_all[0] && is_rail_x_all[1]) || (is_rail_z_all[0] && is_rail_z_all[1]);
adjacencies = is_rail_x_all[0] + is_rail_x_all[1] + is_rail_z_all[0] + is_rail_z_all[1];
}
switch (adjacencies) {
case 1:
if(is_rail_x_all[0] || is_rail_x_all[1])
angle = 90;
break;
case 2:
if(!is_straight)
tileindex = 1; // curved
if(is_rail_x_all[0] && is_rail_x_all[1])
angle = 90;
if(is_rail_z_all[0] && is_rail_z_all[1]){
if (n_minus_z_plus_y.getContent() == thiscontent) angle = 180;
}
else if(is_rail_x_all[0] && is_rail_z_all[0])
angle = 270;
else if(is_rail_x_all[0] && is_rail_z_all[1])
angle = 180;
else if(is_rail_x_all[1] && is_rail_z_all[1])
angle = 90;
break;
case 3:
// here is where the potential to 'switch' a junction is, but not implemented at present
tileindex = 2; // t-junction
if(!is_rail_x_all[1])
angle=180;
if(!is_rail_z_all[0])
angle=90;
if(!is_rail_z_all[1])
angle=270;
break;
case 4:
tileindex = 3; // crossing
break;
case 5: //sloped
if(is_rail_z_plus_y[0])
angle = 180;
if(is_rail_x_plus_y[0])
angle = 90;
if(is_rail_x_plus_y[1])
angle = -90;
break;
default:
break;
}
TileSpec tile = getNodeTileN(n, p, tileindex, data);
tile.material_flags &= ~MATERIAL_FLAG_BACKFACE_CULLING;
tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
AtlasPointer ap = tile.texture;
u16 l = getInteriorLight(n, 0, data);
video::SColor c = MapBlock_LightColor(255, l);
float d = (float)BS/64;
char g=-1;
if (is_rail_x_plus_y[0] || is_rail_x_plus_y[1] || is_rail_z_plus_y[0] || is_rail_z_plus_y[1])
g=1; //Object is at a slope
video::S3DVertex vertices[4] =
{
video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
ap.x0(), ap.y1()),
video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
ap.x1(), ap.y1()),
video::S3DVertex(BS/2,g*BS/2+d,BS/2, 0,0,0, c,
ap.x1(), ap.y0()),
video::S3DVertex(-BS/2,g*BS/2+d,BS/2, 0,0,0, c,
ap.x0(), ap.y0()),
};
for(s32 i=0; i<4; i++)
{
if(angle != 0)
vertices[i].Pos.rotateXZBy(angle);
vertices[i].Pos += intToFloat(p, BS);
}
u16 indices[] = {0,1,2,2,3,0};
collector.append(tile, vertices, 4, indices, 6);
break;}
case NDT_NODEBOX:
{
TileSpec tiles[6];
for(int i = 0; i < 6; i++)
{
tiles[i] = getNodeTileN(n, p, i, data);
}
u16 l = getInteriorLight(n, 0, data);
video::SColor c = MapBlock_LightColor(255, l);
v3f pos = intToFloat(p, BS);
std::vector<aabb3f> boxes = n.getNodeBoxes(nodedef);
for(std::vector<aabb3f>::iterator
i = boxes.begin();
i != boxes.end(); i++)
{
aabb3f box = *i;
box.MinEdge += pos;
box.MaxEdge += pos;
// Compute texture coords
f32 tx1 = (i->MinEdge.X/BS)+0.5;
f32 ty1 = (i->MinEdge.Y/BS)+0.5;
f32 tz1 = (i->MinEdge.Z/BS)+0.5;
f32 tx2 = (i->MaxEdge.X/BS)+0.5;
f32 ty2 = (i->MaxEdge.Y/BS)+0.5;
f32 tz2 = (i->MaxEdge.Z/BS)+0.5;
f32 txc[24] = {
// up
tx1, 1-tz2, tx2, 1-tz1,
// down
tx1, tz1, tx2, tz2,
// right
tz1, 1-ty2, tz2, 1-ty1,
// left
1-tz2, 1-ty2, 1-tz1, 1-ty1,
// back
1-tx2, 1-ty2, 1-tx1, 1-ty1,
// front
tx1, 1-ty2, tx2, 1-ty1,
};
makeCuboid(&collector, box, tiles, 6, c, txc);
}
break;}
}
}
}
/*
Gets node tile given a face direction.
*/
TileSpec getNodeTile(MapNode mn, v3s16 p, v3s16 dir, MeshMakeData *data)
{
INodeDefManager *ndef = data->m_gamedef->ndef();
// Direction must be (1,0,0), (-1,0,0), (0,1,0), (0,-1,0),
// (0,0,1), (0,0,-1) or (0,0,0)
assert(dir.X * dir.X + dir.Y * dir.Y + dir.Z * dir.Z <= 1);
// Convert direction to single integer for table lookup
// 0 = (0,0,0)
// 1 = (1,0,0)
// 2 = (0,1,0)
// 3 = (0,0,1)
// 4 = invalid, treat as (0,0,0)
// 5 = (0,0,-1)
// 6 = (0,-1,0)
// 7 = (-1,0,0)
u8 dir_i = (dir.X + 2 * dir.Y + 3 * dir.Z) & 7;
// Get rotation for things like chests
u8 facedir = mn.getFaceDir(ndef);
assert(facedir <= 3);
static const u8 dir_to_tile[4 * 8] =
{
// 0 +X +Y +Z 0 -Z -Y -X
0, 2, 0, 4, 0, 5, 1, 3, // facedir = 0
0, 4, 0, 3, 0, 2, 1, 5, // facedir = 1
0, 3, 0, 5, 0, 4, 1, 2, // facedir = 2
0, 5, 0, 2, 0, 3, 1, 4, // facedir = 3
};
u8 tileindex = dir_to_tile[facedir*8 + dir_i];
// If not rotated or is side tile, we're done
if(facedir == 0 || (tileindex != 0 && tileindex != 1))
return getNodeTileN(mn, p, tileindex, data);
// This is the top or bottom tile, and it shall be rotated; thus rotate it
TileSpec spec = getNodeTileN(mn, p, tileindex, data);
if(tileindex == 0) {
if(facedir == 1) { // -90
std::string name = data->m_gamedef->tsrc()->getTextureName(spec.texture.id);
name += "^[transformR270";
spec.texture = data->m_gamedef->tsrc()->getTexture(name);
}
else if(facedir == 2) { // 180
spec.texture.pos += spec.texture.size;
spec.texture.size *= -1;
}
else if(facedir == 3) { // 90
std::string name = data->m_gamedef->tsrc()->getTextureName(spec.texture.id);
name += "^[transformR90";
spec.texture = data->m_gamedef->tsrc()->getTexture(name);
}
}
else if(tileindex == 1) {
if(facedir == 1) { // -90
std::string name = data->m_gamedef->tsrc()->getTextureName(spec.texture.id);
name += "^[transformR90";
spec.texture = data->m_gamedef->tsrc()->getTexture(name);
}
else if(facedir == 2) { // 180
spec.texture.pos += spec.texture.size;
spec.texture.size *= -1;
}
else if(facedir == 3) { // 90
std::string name = data->m_gamedef->tsrc()->getTextureName(spec.texture.id);
name += "^[transformR270";
spec.texture = data->m_gamedef->tsrc()->getTexture(name);
}
}
return spec;
}
