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Merge pull request #564 from RealBadAngel/master
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6d facedir
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@RealBadAngel
RealBadAngel committed Mar 23, 2013
2 parents 2318d19 + b1c2bed commit 73a5e98
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Showing 5 changed files with 335 additions and 86 deletions.
4 changes: 4 additions & 0 deletions doc/lua_api.txt
View file
Expand Up @@ -310,6 +310,10 @@ param2 is reserved for the engine when any of these are used:
paramtype2 == "facedir"
^ The rotation of the node is stored in param2. Furnaces and chests are
rotated this way. Can be made by using minetest.dir_to_facedir().
Values range 0 - 23
facedir modulo 4 = axisdir
0 = y+ 1 = z+ 2 = z- 3 = x+ 4 = x- 5 = y-
facedir's two less significant bits are rotation around the axis

Nodes can also contain extra data. See "Node Metadata".

Expand Down
114 changes: 95 additions & 19 deletions src/content_mapblock.cpp
View file
Expand Up @@ -42,14 +42,16 @@ with this program; if not, write to the Free Software Foundation, Inc.,
// (compatible with ContentFeatures). If you specified 0,0,1,1
// for each face, that would be the same as passing NULL.
void makeCuboid(MeshCollector *collector, const aabb3f &box,
const TileSpec *tiles, int tilecount,
TileSpec *tiles, int tilecount,
video::SColor &c, const f32* txc)
{
assert(tilecount >= 1 && tilecount <= 6);

v3f min = box.MinEdge;
v3f max = box.MaxEdge;




if(txc == NULL)
{
static const f32 txc_default[24] = {
Expand Down Expand Up @@ -97,15 +99,70 @@ void makeCuboid(MeshCollector *collector, const aabb3f &box,
video::S3DVertex(min.X,min.Y,min.Z, 0,0,-1, c, txc[20],txc[23]),
};

for(s32 j=0; j<24; j++)
v2f t;
for(int i = 0; i < tilecount; i++)
{
switch (tiles[i].rotation)
{
case 0:
break;
case 1: //R90
for (int x = 0; x < 4; x++)
vertices[i*4+x].TCoords.rotateBy(90,irr::core::vector2df(0, 0));
break;
case 2: //R180
for (int x = 0; x < 4; x++)
vertices[i*4+x].TCoords.rotateBy(180,irr::core::vector2df(0, 0));
break;
case 3: //R270
for (int x = 0; x < 4; x++)
vertices[i*4+x].TCoords.rotateBy(270,irr::core::vector2df(0, 0));
break;
case 4: //FXR90
for (int x = 0; x < 4; x++)
vertices[i*4+x].TCoords.rotateBy(90,irr::core::vector2df(0, 0));

tiles[i].texture.pos.Y += tiles[i].texture.size.Y;
tiles[i].texture.size.Y *= -1;
break;
case 5: //FXR270
for (int x = 0; x < 4; x++)
vertices[i*4+x].TCoords.rotateBy(270,irr::core::vector2df(0, 0));
t=vertices[i*4].TCoords;
tiles[i].texture.pos.Y += tiles[i].texture.size.Y;
tiles[i].texture.size.Y *= -1;
break;
case 6: //FYR90
for (int x = 0; x < 4; x++)
vertices[i*4+x].TCoords.rotateBy(90,irr::core::vector2df(0, 0));
tiles[i].texture.pos.X += tiles[i].texture.size.X;
tiles[i].texture.size.X *= -1;
break;
case 7: //FYR270
for (int x = 0; x < 4; x++)
vertices[i*4+x].TCoords.rotateBy(270,irr::core::vector2df(0, 0));
tiles[i].texture.pos.X += tiles[i].texture.size.X;
tiles[i].texture.size.X *= -1;
break;
case 8: //FX
tiles[i].texture.pos.Y += tiles[i].texture.size.Y;
tiles[i].texture.size.Y *= -1;
break;
case 9: //FY
tiles[i].texture.pos.X += tiles[i].texture.size.X;
tiles[i].texture.size.X *= -1;
break;
default:
break;
}
}
for(s32 j=0; j<24; j++)
{
int tileindex = MYMIN(j/4, tilecount-1);
vertices[j].TCoords *= tiles[tileindex].texture.size;
vertices[j].TCoords += tiles[tileindex].texture.pos;
}

u16 indices[] = {0,1,2,2,3,0};

// Add to mesh collector
for(s32 j=0; j<24; j+=4)
{
Expand Down Expand Up @@ -1154,14 +1211,8 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
v3s16(0, 0, 1),
v3s16(0, 0, -1)
};

TileSpec tiles[6];
for(int i = 0; i < 6; i++)
{
// Handles facedir rotation for textures
tiles[i] = getNodeTile(n, p, tile_dirs[i], data);
}


u16 l = getInteriorLight(n, 0, data);
video::SColor c = MapBlock_LightColor(255, l, decode_light(f.light_source));

Expand All @@ -1172,17 +1223,43 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
i = boxes.begin();
i != boxes.end(); i++)
{
for(int j = 0; j < 6; j++)
{
// Handles facedir rotation for textures
tiles[j] = getNodeTile(n, p, tile_dirs[j], data);
}
aabb3f box = *i;
box.MinEdge += pos;
box.MaxEdge += pos;

f32 temp;
if (box.MinEdge.X > box.MaxEdge.X)
{
temp=box.MinEdge.X;
box.MinEdge.X=box.MaxEdge.X;
box.MaxEdge.X=temp;
}
if (box.MinEdge.Y > box.MaxEdge.Y)
{
temp=box.MinEdge.Y;
box.MinEdge.Y=box.MaxEdge.Y;
box.MaxEdge.Y=temp;
}
if (box.MinEdge.Z > box.MaxEdge.Z)
{
temp=box.MinEdge.Z;
box.MinEdge.Z=box.MaxEdge.Z;
box.MaxEdge.Z=temp;
}

//
// 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 tx1 = (box.MinEdge.X/BS)+0.5;
f32 ty1 = (box.MinEdge.Y/BS)+0.5;
f32 tz1 = (box.MinEdge.Z/BS)+0.5;
f32 tx2 = (box.MaxEdge.X/BS)+0.5;
f32 ty2 = (box.MaxEdge.Y/BS)+0.5;
f32 tz2 = (box.MaxEdge.Z/BS)+0.5;
f32 txc[24] = {
// up
tx1, 1-tz2, tx2, 1-tz1,
Expand All @@ -1197,7 +1274,6 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
// front
tx1, 1-ty2, tx2, 1-ty1,
};

makeCuboid(&collector, box, tiles, 6, c, txc);
}
break;}
Expand Down
163 changes: 114 additions & 49 deletions src/mapblock_mesh.cpp
View file
Expand Up @@ -455,6 +455,80 @@ static void makeFastFace(TileSpec tile, u16 li0, u16 li1, u16 li2, u16 li3,
v3f vertex_pos[4];
v3s16 vertex_dirs[4];
getNodeVertexDirs(dir, vertex_dirs);
v3s16 t;
switch (tile.rotation)
{
case 0:
break;
case 1: //R90
t = vertex_dirs[0];
vertex_dirs[0] = vertex_dirs[3];
vertex_dirs[3] = vertex_dirs[2];
vertex_dirs[2] = vertex_dirs[1];
vertex_dirs[1] = t;
break;
case 2: //R180
t = vertex_dirs[0];
vertex_dirs[0] = vertex_dirs[2];
vertex_dirs[2] = t;
t = vertex_dirs[1];
vertex_dirs[1] = vertex_dirs[3];
vertex_dirs[3] = t;
break;
case 3: //R270
t = vertex_dirs[0];
vertex_dirs[0] = vertex_dirs[1];
vertex_dirs[1] = vertex_dirs[2];
vertex_dirs[2] = vertex_dirs[3];
vertex_dirs[3] = t;
break;
case 4: //FXR90
t = vertex_dirs[0];
vertex_dirs[0] = vertex_dirs[3];
vertex_dirs[3] = vertex_dirs[2];
vertex_dirs[2] = vertex_dirs[1];
vertex_dirs[1] = t;
tile.texture.pos.Y += tile.texture.size.Y;
tile.texture.size.Y *= -1;
break;
case 5: //FXR270
t = vertex_dirs[0];
vertex_dirs[0] = vertex_dirs[1];
vertex_dirs[1] = vertex_dirs[2];
vertex_dirs[2] = vertex_dirs[3];
vertex_dirs[3] = t;
tile.texture.pos.Y += tile.texture.size.Y;
tile.texture.size.Y *= -1;
break;
case 6: //FYR90
t = vertex_dirs[0];
vertex_dirs[0] = vertex_dirs[3];
vertex_dirs[3] = vertex_dirs[2];
vertex_dirs[2] = vertex_dirs[1];
vertex_dirs[1] = t;
tile.texture.pos.X += tile.texture.size.X;
tile.texture.size.X *= -1;
break;
case 7: //FYR270
t = vertex_dirs[0];
vertex_dirs[0] = vertex_dirs[1];
vertex_dirs[1] = vertex_dirs[2];
vertex_dirs[2] = vertex_dirs[3];
vertex_dirs[3] = t;
tile.texture.pos.X += tile.texture.size.X;
tile.texture.size.X *= -1;
break;
case 8: //FX
tile.texture.pos.Y += tile.texture.size.Y;
tile.texture.size.Y *= -1;
break;
case 9: //FY
tile.texture.pos.X += tile.texture.size.X;
tile.texture.size.X *= -1;
break;
default:
break;
}
for(u16 i=0; i<4; i++)
{
vertex_pos[i] = v3f(
Expand Down Expand Up @@ -601,60 +675,50 @@ TileSpec getNodeTile(MapNode mn, v3s16 p, v3s16 dir, MeshMakeData *data)
// 5 = (0,0,-1)
// 6 = (0,-1,0)
// 7 = (-1,0,0)
u8 dir_i = (dir.X + 2 * dir.Y + 3 * dir.Z) & 7;
u8 dir_i = ((dir.X + 2 * dir.Y + 3 * dir.Z) & 7)*2;

// Get rotation for things like chests
u8 facedir = mn.getFaceDir(ndef);
assert(facedir <= 3);

static const u8 dir_to_tile[4 * 8] =
assert(facedir <= 23);
static const u16 dir_to_tile[24 * 16] =
{
// 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
// 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

};
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);
}
}
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];
std::string name = data->m_gamedef->tsrc()->getTextureName(spec.texture.id);
spec.texture = data->m_gamedef->tsrc()->getTexture(name);
return spec;
}

Expand Down Expand Up @@ -794,6 +858,7 @@ static void updateFastFaceRow(
&& next_lights[2] == lights[2]
&& next_lights[3] == lights[3]
&& next_tile == tile
&& tile.rotation == 0
&& next_light_source == light_source)
{
next_is_different = false;
Expand Down

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