}
#endif
+#if 0
/*
If the new node is mud and it is under sunlight, change it
to grass
{
n.d = CONTENT_GRASS;
}
+#endif
/*
Remove all light that has come out of this node
}
}
+void make_cactus(VoxelManipulator &vmanip, v3s16 p0)
+{
+ MapNode cactusnode(CONTENT_CACTUS);
+
+ s16 trunk_h = 3;
+ v3s16 p1 = p0;
+ for(s16 ii=0; ii<trunk_h; ii++)
+ {
+ if(vmanip.m_area.contains(p1))
+ vmanip.m_data[vmanip.m_area.index(p1)] = cactusnode;
+ p1.Y++;
+ }
+}
+
/*
Noise functions. Make sure seed is mangled differently in each one.
*/
if(have_sand == false)
continue;
+ // Determine whether to have clay in the sand here
+ double claynoise = noise2d_perlin(
+ 0.5+(float)p2d.X/500, 0.5+(float)p2d.Y/500,
+ data->seed+4321, 8, 0.95);
+
+ bool have_clay = have_sand && (claynoise > 0.95);
+
// Find ground level
s16 surface_y = find_ground_level_clever(data->vmanip, p2d);
MapNode *n = &data->vmanip.m_data[i];
if(n->d == CONTENT_MUD || n->d == CONTENT_GRASS)
{
- n->d = CONTENT_SAND;
+ if(have_clay && (surface_y == WATER_LEVEL))
+ n->d = CONTENT_CLAY;
+ else
+ n->d = CONTENT_SAND;
}
else
{
if(y > y_nodes_max - 6)
continue;
v3s16 p(x,y,z);
- /*
- Trees grow only on mud and grass
- */
{
u32 i = data->vmanip.m_area.index(v3s16(p));
MapNode *n = &data->vmanip.m_data[i];
- if(n->d != CONTENT_MUD && n->d != CONTENT_GRASS)
+ if(n->d != CONTENT_MUD && n->d != CONTENT_GRASS && n->d != CONTENT_SAND)
continue;
+ // Trees grow only on mud and grass
+ if(n->d == CONTENT_MUD || n->d == CONTENT_GRASS)
+ {
+ p.Y++;
+ make_tree(data->vmanip, p);
+ }
+ // Cactii grow only on sand
+ if(n->d == CONTENT_SAND)
+ {
+ p.Y++;
+ make_cactus(data->vmanip, p);
+ }
}
- p.Y++;
- // Make a tree
- make_tree(data->vmanip, p);
}
}
/*u32 tree_max = relative_area / 60;
sectorpos_base - v2s16(1,1) * max_spread_amount_sectors;
s16 sectorpos_bigbase_size =
sectorpos_base_size + 2 * max_spread_amount_sectors;
-
+
+ // Check limits
+ const s16 limit = MAP_GENERATION_LIMIT / MAP_BLOCKSIZE;
+ if(sectorpos_bigbase.X < -limit
+ || sectorpos_bigbase.X + sectorpos_bigbase_size >= limit
+ || sectorpos_bigbase.Y < -limit
+ || sectorpos_bigbase.Y + sectorpos_bigbase_size >= limit)
+ {
+ data.no_op = true;
+ return;
+ }
+
data.seed = m_seed;
data.chunkpos = chunkpos;
data.y_blocks_min = y_blocks_min;