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-rw-r--r--src/mapgen.cpp77
1 files changed, 67 insertions, 10 deletions
diff --git a/src/mapgen.cpp b/src/mapgen.cpp
index 801dd72b1..71696a349 100644
--- a/src/mapgen.cpp
+++ b/src/mapgen.cpp
@@ -151,6 +151,34 @@ static void make_tree(VoxelManipulator &vmanip, v3s16 p0)
}
}
+void make_papyrus(VoxelManipulator &vmanip, v3s16 p0)
+{
+ MapNode papyrusnode(CONTENT_PAPYRUS);
+
+ s16 trunk_h = myrand_range(2, 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)] = papyrusnode;
+ p1.Y++;
+ }
+}
+
+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++;
+ }
+}
+
#if 0
static void make_randomstone(VoxelManipulator &vmanip, v3s16 p0)
{
@@ -1752,6 +1780,15 @@ void make_block(BlockMakeData *data)
u32 current_depth = 0;
bool air_detected = false;
bool water_detected = false;
+ bool have_clay = false;
+
+ // 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, 6, 0.95);
+
+ have_clay = have_sand && (claynoise > 1.25);
+
// Use fast index incrementing
s16 start_y = node_max.Y+2;
v3s16 em = vmanip.m_area.getExtent();
@@ -1778,7 +1815,10 @@ void make_block(BlockMakeData *data)
{
if(have_sand)
{
- vmanip.m_data[i] = MapNode(CONTENT_SAND);
+ if (have_clay)
+ vmanip.m_data[i] = MapNode(CONTENT_CLAY);
+ else
+ vmanip.m_data[i] = MapNode(CONTENT_SAND);
}
#if 1
else if(current_depth==0 && !water_detected
@@ -1823,7 +1863,7 @@ void make_block(BlockMakeData *data)
//s16 y = find_ground_level(data->vmanip, v2s16(x,z));
s16 y = find_ground_level_from_noise(data->seed, v2s16(x,z), 4);
// Don't make a tree under water level
- if(y < WATER_LEVEL)
+ if(y < WATER_LEVEL - 1)
continue;
// Make sure tree fits (only trees whose starting point is
// at this block are added)
@@ -1847,19 +1887,36 @@ void make_block(BlockMakeData *data)
// If not found, handle next one
if(found == false)
continue;
- /*
- Trees grow only on mud and grass
- */
+
{
u32 i = data->vmanip->m_area.index(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;
+
+ // Papyrus grows only on mud and in water
+ if(n->d == CONTENT_MUD && y == WATER_LEVEL - 1)
+ {
+ p.Y++;
+ make_papyrus(vmanip, p);
+ }
+ // Don't make a tree under water level
+ if(y < WATER_LEVEL)
continue;
+ // Trees grow only on mud and grass
+ if(n->d == CONTENT_MUD || n->d == CONTENT_GRASS)
+ {
+ p.Y++;
+ make_tree(vmanip, p);
+ }
+ // Cactii grow only on sand
+ else if(n->d == CONTENT_SAND)
+ {
+ p.Y++;
+ make_cactus(vmanip, p);
+ }
}
- // Tree will be placed one higher
- p.Y++;
- // Make a tree
- make_tree(vmanip, p);
}
#if 0