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backported cactus, papyrus and clay

This commit is contained in:
Sebastian Rühl 2011-06-26 13:47:21 +02:00
parent fb6ac9a1a6
commit 13cf5425db
3 changed files with 67 additions and 10 deletions
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73
src/mapgen.cpp
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@ -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();
@ -1778,6 +1815,9 @@ void make_block(BlockMakeData *data)
{
if(have_sand)
{
if (have_clay)
vmanip.m_data[i] = MapNode(CONTENT_CLAY);
else
vmanip.m_data[i] = MapNode(CONTENT_SAND);
}
#if 1
@ -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)
@ -1847,20 +1887,37 @@ 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;
}
// Tree will be placed one higher
// 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 a tree
make_tree(vmanip, p);
}
// Cactii grow only on sand
else if(n->d == CONTENT_SAND)
{
p.Y++;
make_cactus(vmanip, p);
}
}
}
#if 0
/*