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Tune mapgen

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This commit is contained in:
Perttu Ahola 2012-02-03 14:59:40 +02:00
parent 202658678d
commit 0a59605e05
1 changed files with 47 additions and 13 deletions
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60
src/mapgen.cpp
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@ -70,13 +70,14 @@ static s16 find_ground_level_clever(VoxelManipulator &vmanip, v2s16 p2d,
s16 y_nodes_min = vmanip.m_area.MinEdge.Y;
u32 i = vmanip.m_area.index(v3s16(p2d.X, y_nodes_max, p2d.Y));
s16 y;
content_t c_tree = LEGN(ndef, "CONTENT_TREE");
content_t c_leaves = LEGN(ndef, "CONTENT_LEAVES");
for(y=y_nodes_max; y>=y_nodes_min; y--)
{
MapNode &n = vmanip.m_data[i];
if(ndef->get(n).walkable
// TODO: Cache LEGN values
&& n.getContent() != LEGN(ndef, "CONTENT_TREE")
&& n.getContent() != LEGN(ndef, "CONTENT_LEAVES"))
&& n.getContent() != c_tree
&& n.getContent() != c_leaves)
break;
vmanip.m_area.add_y(em, i, -1);
@ -1200,9 +1201,9 @@ double base_rock_level_2d(u64 seed, v2s16 p)
base = base2;*/
#if 1
// Higher ground level
double higher = (double)WATER_LEVEL + 20. + 10. * noise2d_perlin(
0.5+(float)p.X/250., 0.5+(float)p.Y/250.,
seed+85039, 4, 0.6);
double higher = (double)WATER_LEVEL + 20. + 16. * noise2d_perlin(
0.5+(float)p.X/500., 0.5+(float)p.Y/500.,
seed+85039, 5, 0.6);
//higher = 30; // For debugging
// Limit higher to at least base
@ -1214,11 +1215,19 @@ double base_rock_level_2d(u64 seed, v2s16 p)
0.5+(float)p.X/125., 0.5+(float)p.Y/125.,
seed-932, 5, 0.7);
b = rangelim(b, 0.0, 1000.0);
b = pow(b, 8);
b = pow(b, 7);
b *= 5;
b = rangelim(b, 3.0, 1000.0);
b = rangelim(b, 0.5, 1000.0);
// Values 1.5...100 give quite horrible looking slopes
if(b > 1.5 && b < 100.0){
if(b < 10.0)
b = 1.5;
else
b = 100.0;
}
//dstream<<"b="<<b<<std::endl;
//double b = 20;
//b = 0.25;
// Offset to more low
double a_off = -0.20;
@ -1542,6 +1551,7 @@ void make_block(BlockMakeData *data)
);
MapNode airnode(CONTENT_AIR);
MapNode waternode(c_water_source);
/*
Generate some tunnel starting from orp
@ -1567,7 +1577,7 @@ void make_block(BlockMakeData *data)
v3s16 maxlen;
if(bruise_surface)
{
maxlen = v3s16(rs*7,rs*7,rs*7);
maxlen = v3s16(rs*7,rs*2,rs*7);
}
else
{
@ -1593,6 +1603,14 @@ void make_block(BlockMakeData *data)
);
}
if(bruise_surface){
v3f p = orp + vec;
s16 h = find_ground_level_clever(vmanip,
v2s16(p.X, p.Z), ndef);
route_y_min = h - rs/3;
route_y_max = h + rs;
}
vec += main_direction;
v3f rp = orp + vec;
@ -1613,14 +1631,16 @@ void make_block(BlockMakeData *data)
for(float f=0; f<1.0; f+=1.0/vec.getLength())
{
v3f fp = orp + vec * f;
fp.X += 0.1*myrand_range(-10,10);
fp.Z += 0.1*myrand_range(-10,10);
v3s16 cp(fp.X, fp.Y, fp.Z);
s16 d0 = -rs/2;
s16 d1 = d0 + rs - 1;
for(s16 z0=d0; z0<=d1; z0++)
{
//s16 si = rs - MYMAX(0, abs(z0)-rs/4);
s16 si = rs - MYMAX(0, abs(z0)-rs/7);
s16 si = rs - MYMAX(0, abs(z0)-rs/4);
//s16 si = rs - MYMAX(0, abs(z0)-rs/7);
for(s16 x0=-si; x0<=si-1; x0++)
{
s16 maxabsxz = MYMAX(abs(x0), abs(z0));
@ -1657,7 +1677,14 @@ void make_block(BlockMakeData *data)
// Just set it to air, it will be changed to
// water afterwards
u32 i = vmanip.m_area.index(p);
vmanip.m_data[i] = airnode;
if(bruise_surface){
if(p.Y <= WATER_LEVEL)
vmanip.m_data[i] = waternode;
else
vmanip.m_data[i] = airnode;
} else {
vmanip.m_data[i] = airnode;
}
if(bruise_surface == false)
{
@ -1692,9 +1719,16 @@ void make_block(BlockMakeData *data)
// Node position in 2d
v2s16 p2d = v2s16(x,z);
MapNode addnode(c_dirt);
// Randomize mud amount
s16 mud_add_amount = get_mud_add_amount(data->seed, p2d) / 2.0;
if(mud_add_amount <= 0){
mud_add_amount = 1 - mud_add_amount;
addnode = MapNode(c_gravel);
}
// Find ground level
s16 surface_y = find_stone_level(vmanip, p2d, ndef);
// Handle area not found
@ -1727,7 +1761,7 @@ void make_block(BlockMakeData *data)
break;
MapNode &n = vmanip.m_data[i];
n = MapNode(c_dirt);
n = addnode;
mudcount++;
vmanip.m_area.add_y(em, i, 1);