From 9a22d02903549c09f059b12f0ec06ea12a19abbb Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Tue, 1 Mar 2011 01:32:54 +0200
Subject: [PATCH] mapgen tweaking
---
src/main.cpp | 29 ++++---
src/map.cpp | 218 +++++++++++++++++++++++++++++++++----------------
src/noise.cpp | 10 ++-
src/server.cpp | 18 ++--
4 files changed, 178 insertions(+), 97 deletions(-)
diff --git a/src/main.cpp b/src/main.cpp
index 01dd93ffc..56ac4affd 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -496,7 +496,7 @@ Inventory local_inventory;
u16 g_selected_item = 0;
bool g_show_map_plot = false;
-bool g_refresh_map_plot = true;
+bool g_refresh_map_plot = false;
/*
Debug streams
@@ -1267,7 +1267,7 @@ void draw_hotbar(video::IVideoDriver *driver, gui::IGUIFont *font,
}
video::ITexture *g_map_plot_texture = NULL;
-float g_map_plot_texture_scale = 2;
+float g_map_plot_texture_scale = 4;
void updateMapPlotTexture(v2f centerpos, video::IVideoDriver* driver,
Client *client)
@@ -1306,21 +1306,24 @@ void updateMapPlotTexture(v2f centerpos, video::IVideoDriver* driver,
c.set(255, 160, 160, 160);
else if(h < WATER_LEVEL - 0.5) // Water
c.set(255, 50, 50, 255);
- else if(h < WATER_LEVEL + 2
+ else if(h < WATER_LEVEL + 2 // Sand
&& get_have_sand(client->getMapSeed(), pf))
- // Sand
c.set(255, 237, 201, 175);
#if 1
- else if(h < WATER_LEVEL + 10) // Green
- c.set(255, 50, 150, 50);
- else if(h < WATER_LEVEL + 20) // Greenish yellow
- c.set(255, 110, 185, 50);
- else if(h < WATER_LEVEL + 50) // Yellow
- c.set(255, 220, 220, 50);
- else if(h < WATER_LEVEL + 100) // White
- c.set(255, 180, 180, 180);
+ else if(h < WATER_LEVEL + 10)
+ c.set(255, 50, 150, 50); // Green
+ else if(h < WATER_LEVEL + 20)
+ c.set(255, 110, 185, 50); // Yellowish green
+ else if(h < WATER_LEVEL + 40)
+ c.set(255, 180, 210, 50); // Greenish yellow
+ else if(h < WATER_LEVEL + 60)
+ c.set(255, 220, 220, 50); // Yellow
+ else if(h < WATER_LEVEL + 80)
+ c.set(255, 200, 200, 110); // Yellowish white
+ else if(h < WATER_LEVEL + 100)
+ c.set(255, 190, 190, 190); // Grey
else
- c.set(255, 255, 255, 255);
+ c.set(255, 255, 255, 255); // White
#endif
/*else if(h < WATER_LEVEL + d1)
{
diff --git a/src/map.cpp b/src/map.cpp
index b141bd7e2..d48003d4a 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -2027,7 +2027,7 @@ double base_rock_level_2d(u64 seed, v2f p)
(seed>>32)+78593, 5, 0.55), 0.15);
h += 30 * tm2;*/
-#if 1
+#if 0
{
// Large mountains
double m3 = 100.0 - 600.0 * noise2d_perlin_abs(
@@ -2038,24 +2038,30 @@ double base_rock_level_2d(u64 seed, v2f p)
}
#endif
-#if 1
+#if 0
{
- // Pretty neat looking mountains
- double m4 = 100.0 - 400.0 * noise2d_perlin_abs(
- 0.324+(float)p.X/2000., 0.423+(float)p.Y/2000.,
- (seed>>32)+65012102, 8, 0.6);
- if(m4 > h)
- h = m4;
+ // More mountain ranges
+ double d = 100;
+ double a1 = d*2.0 - d*7 * noise2d_perlin_abs(
+ 0.5+(float)p.X/1000., 0.5+(float)p.Y/1000.,
+ seed+850342, 7, 0.55);
+ /*if(a1 > d)
+ a1 = d + sqrt(a1-d);*/
+ a1 = (1.0 - exp(-a1/d))*d;
+ /*if(a1 > h)
+ h = a1;*/
+ if(a1 > 0)
+ h += a1;
}
#endif
#if 0
{
- // More neat looking mountain ranges
- double d = 100;
- double a1 = d*2 - d*5 * noise2d_perlin_abs(
- 0.5+(float)p.X/500., 0.5+(float)p.Y/500.,
- seed+850342, 6, 0.55);
+ // More mountain ranges
+ double d = 60;
+ double a1 = d*2.0 - d*7 * noise2d_perlin_abs(
+ 0.5+(float)p.X/1000., 0.5+(float)p.Y/1000.,
+ seed+850342, 7, 0.55);
/*if(a1 > d)
a1 = d + sqrt(a1-d);*/
a1 = (1.0 - exp(-a1/d))*d;
@@ -2066,11 +2072,11 @@ double base_rock_level_2d(u64 seed, v2f p)
}
#endif
-#if 1
+#if 0
{
// Very steep mountain ranges
- double d = 150;
- double a1 = d*2 - d*7.5 * noise2d_perlin_abs(
+ double d = 120;
+ double a1 = d*2 - d*6.5 * noise2d_perlin_abs(
0.5+(float)p.X/500., 0.5+(float)p.Y/500.,
seed+850342, 6, 0.6);
/*if(a1 > d)
@@ -2088,6 +2094,22 @@ double base_rock_level_2d(u64 seed, v2f p)
h = m4;*/
}
#endif
+
+ /*
+ The sutff before this comment is usually not used.
+ The stuff after this comment is usually used.
+ */
+
+#if 1
+ {
+ // Pretty neat looking mountains
+ double m4 = 100.0 - 400.0 * noise2d_perlin_abs(
+ 0.324+(float)p.X/2000., 0.423+(float)p.Y/2000.,
+ (seed>>32)+65012102, 7, 0.6);
+ if(m4 > h)
+ h = m4;
+ }
+#endif
#if 1
// Some kind of hill chains or something
@@ -2106,17 +2128,22 @@ double base_rock_level_2d(u64 seed, v2f p)
#endif
#if 1
- double base = -2. + 25. * noise2d_perlin(
- 0.5+(float)p.X/500., 0.5+(float)p.Y/500.,
+ double base = -2. + 30. * noise2d_perlin(
+ 0.5+(float)p.X/1000., 0.5+(float)p.Y/1000.,
(seed>>32)+653876, 7, 0.6);
#else
double base = 0;
#endif
#if 1
+ /*
+ Combined with turbulence, this thing here is able to make very
+ awesome terrain, albeit rarely.
+ */
+
double higher = 40. * noise2d_perlin(
0.5+(float)p.X/250., 0.5+(float)p.Y/250.,
- seed+39292, 7, 0.55);
+ seed+39292, 6, 0.50);
/*double higher = 50. * noise2d_perlin_abs(
0.5+(float)p.X/250., 0.5+(float)p.Y/250.,
seed+85039, 5, 0.63);*/
@@ -2127,7 +2154,7 @@ double base_rock_level_2d(u64 seed, v2f p)
// Steepness factor of cliffs
double b = 1.0 + 1.0 * noise2d_perlin(
0.5+(float)p.X/250., 0.5+(float)p.Y/250.,
- seed-932, 7, 0.7);
+ seed-932, 6, 0.7);
b = rangelim(b, 0.0, 1000.0);
#if 1
b = pow(b, 5);
@@ -2137,11 +2164,11 @@ double base_rock_level_2d(u64 seed, v2f p)
//double b = 20;
// Offset to more low
//double a_off = -0.30;
- double a_off = -0.00;
+ double a_off = -0.20;
// High/low selector
double a = (double)0.5 + b * (a_off + noise2d_perlin(
- 0.5+(float)p.X/250., 0.5+(float)p.Y/250.,
- seed-359, 6, 0.70));
+ 0.5+(float)p.X/500., 0.5+(float)p.Y/500.,
+ seed-359, 7, 0.70));
#endif
#if 0
/*b = pow(b, 5);
@@ -2190,14 +2217,47 @@ v2f base_ground_turbulence(u64 seed, v3f p)
#if 1
double f = 20;
- double vv = 1.0 - 1.0 * noise3d_perlin_abs(
- 0.5+p.X/500,
- 0.5+p.Y/500,
- 0.5+p.Z/500,
+#if 1
+ // Cut off at a minimum height
+ {
+ double d = 5;
+ double min = WATER_LEVEL;
+ if(p.Y < min)
+ return v2f(0,0);
+ else if(p.Y < min + d)
+ f *= ((p.Y-min)/d);
+ }
+#endif
+
+#if 1
+ double vv = 0.75 + 1.0 * noise3d_perlin(
+ 0.5+p.X/250,
+ 0.5+p.Y/250,
+ 0.5+p.Z/250,
+ seed+1324381, 4, 0.5);
+ double vve = rangelim(vv, 0.0, 1.0);
+ /*double vv = 1.0 - 2.0 * noise3d_perlin_abs(
+ 0.5+p.X/250,
+ 0.5+p.Y/250,
+ 0.5+p.Z/250,
seed+1324031, 4, 0.5);
- //double vve = 1.0 - exp(-MYMAX(0, vv*2.0));
- double vve = MYMAX(0, vv);
+ double vve = 1.0 - exp(-MYMAX(0, vv*2.0));*/
+ //double vve = rangelim(vv, 0, 1.0);
//dstream<<"vve="<<vve<<std::endl;
+
+ /*// Limit turbulence near water level
+ double a = contour((p.Y-WATER_LEVEL)/10.0);
+ vve = (1.-a) * vve;*/
+
+ // Increase turbulence in elevated heights
+ double ah = WATER_LEVEL + 40;
+ if(p.Y > ah)
+ {
+ vve *= p.Y/ah;
+ }
+#else
+ double vve = 1;
+#endif
double v1 = f * noise3d_perlin(
0.5+p.X/200,
@@ -2289,47 +2349,64 @@ bool is_base_ground(u64 seed, v3f p, double *depth_guess=NULL)
}
#endif
- v2f t = base_ground_turbulence(seed, p);
-
- double surface_y_f = base_rock_level_2d(seed, v2f(p.X+t.X, p.Z+t.Y));
+ bool is_ground = true;
- /*if(depth_guess)
- *depth_guess = surface_y_f - p.Y;*/
+#if 1
+ if(is_carved(seed, p))
+ is_ground = false;
+#endif
- if(depth_guess)
+ if(depth_guess || is_ground == true)
{
- // Find highest surface near current
- v3f dirs[4] = {
- v3f(1,0,0),
- v3f(-1,0,0),
- v3f(0,0,1),
- v3f(0,0,-1)
- };
- double s2 = surface_y_f;
- for(u32 i=0; i<4; i++)
+ v2f t = base_ground_turbulence(seed, p);
+
+ double surface_y_f = base_rock_level_2d(seed, v2f(p.X+t.X, p.Z+t.Y));
+
+#if 0
+ if(depth_guess)
{
- v3f dir = dirs[i];
- // Get turbulence at around there
- v2f t2 = base_ground_turbulence(seed, p+dir);
- // Get ground height
- v2f l = v2f(p.X+t2.X+dir.X, p.Z+t2.Y+dir.Z);
- double s = base_rock_level_2d(seed, l);
- if(s > s2)
- s2 = s;
- }
- *depth_guess = s2 - p.Y;
- }
-
- /*if(depth_guess)
- {
- // Check a bit lower also, take highest surface
- v2f t2 = base_ground_turbulence(seed, p + v3f(0,-2,0));
- double s2 = base_rock_level_2d(seed, v2f(p.X+t2.X, p.Z+t2.Y));
- if(s2 > surface_y_f)
+ // Find highest surface near current
+ v3f dirs[4] = {
+ v3f(1,0,0),
+ v3f(-1,0,0),
+ v3f(0,0,1),
+ v3f(0,0,-1)
+ };
+ double s2 = surface_y_f;
+ for(u32 i=0; i<4; i++)
+ {
+ v3f dir = dirs[i];
+ // Get turbulence at around there
+ v2f t2 = base_ground_turbulence(seed, p+dir);
+ // Get ground height
+ v2f l = v2f(p.X+t2.X+dir.X, p.Z+t2.Y+dir.Z);
+ double s = base_rock_level_2d(seed, l);
+ if(s > s2)
+ s2 = s;
+ }
*depth_guess = s2 - p.Y;
- else
+ }
+#endif
+#if 1
+ if(depth_guess)
+ {
+ // Check a bit lower also, take highest surface
+ v2f t2 = base_ground_turbulence(seed, p + v3f(0,-2,0));
+ double s2 = base_rock_level_2d(seed, v2f(p.X+t2.X, p.Z+t2.Y));
+ if(s2 > surface_y_f)
+ *depth_guess = s2 - p.Y;
+ else
+ *depth_guess = surface_y_f - p.Y;
+ }
+#endif
+#if 0
+ if(depth_guess)
*depth_guess = surface_y_f - p.Y;
- }*/
+#endif
+
+ if(p.Y > surface_y_f)
+ is_ground = false;
+ }
/*if(depth_guess)
{
@@ -2340,13 +2417,6 @@ bool is_base_ground(u64 seed, v3f p, double *depth_guess=NULL)
double s1 = base_rock_level_2d(seed, v2f(p.X+v1,p.Z+v2));
}*/
- bool is_ground = (p.Y <= surface_y_f);
-
-#if 1
- if(is_carved(seed, p))
- is_ground = false;
-#endif
-
return is_ground;
}
@@ -4171,7 +4241,7 @@ MapBlock * ServerMap::generateBlock(
} block_type = BT_SURFACE;
{// ground_timer (0ms or ~100ms)
- //TimeTaker ground_timer("Ground generation");
+ TimeTaker ground_timer("Ground generation");
/*
Approximate whether this block is a surface block, an air
@@ -4930,8 +5000,12 @@ MapBlock * ServerMap::generateBlock(
// Lighting is invalid after generation for surface blocks
if(block_type == BT_SURFACE)
{
+#if 1
block->setLightingExpired(true);
lighting_invalidated_blocks.insert(p, block);
+#else
+ block->setLightingExpired(false);
+#endif
}
// Lighting is not invalid for other blocks
else
diff --git a/src/noise.cpp b/src/noise.cpp
index bc5148545..06ef8a39a 100644
--- a/src/noise.cpp
+++ b/src/noise.cpp
@@ -44,8 +44,10 @@ double linearInterpolation(double x0, double x1, double t){
}
double biLinearInterpolation(double x0y0, double x1y0, double x0y1, double x1y1, double x, double y){
- double tx = easeCurve(x);
- double ty = easeCurve(y);
+ /*double tx = easeCurve(x);
+ double ty = easeCurve(y);*/
+ double tx = x;
+ double ty = y;
double u = linearInterpolation(x0y0,x1y0,tx);
double v = linearInterpolation(x0y1,x1y1,tx);
return linearInterpolation(u,v,ty);
@@ -92,7 +94,7 @@ double noise3d(int x, int y, int z, int seed)
return 1.0 - (double)n/1073741824;
}
-#if 1
+#if 0
double noise2d_gradient(double x, double y, int seed)
{
// Calculate the integer coordinates
@@ -117,7 +119,7 @@ double noise2d_gradient(double x, double y, int seed)
}
#endif
-#if 0
+#if 1
double noise2d_gradient(double x, double y, int seed)
{
// Calculate the integer coordinates
diff --git a/src/server.cpp b/src/server.cpp
index 9171c7966..db9c569eb 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -232,16 +232,18 @@ void * EmergeThread::Thread()
*/
if(lighting_invalidated_blocks.size() > 0)
+ {
dstream<<"lighting "<<lighting_invalidated_blocks.size()
<<" blocks"<<std::endl;
- // 50-100ms for single block generation
- //TimeTaker timer("** EmergeThread updateLighting");
-
- // Update lighting without locking the environment mutex,
- // add modified blocks to changed blocks
- map.updateLighting(lighting_invalidated_blocks, modified_blocks);
-
+ // 50-100ms for single block generation
+ TimeTaker timer("** EmergeThread updateLighting");
+
+ // Update lighting without locking the environment mutex,
+ // add modified blocks to changed blocks
+ map.updateLighting(lighting_invalidated_blocks, modified_blocks);
+ }
+
// Add all from changed_blocks to modified_blocks
for(core::map<v3s16, MapBlock*>::Iterator i = changed_blocks.getIterator();
i.atEnd() == false; i++)
@@ -3411,7 +3413,7 @@ Player *Server::emergePlayer(const char *name, const char *password,
s16 groundheight = 0;
#if 1
// Try to find a good place a few times
- for(s32 i=0; i<500; i++)
+ for(s32 i=0; i<1000; i++)
{
s32 range = 1 + i;
// We're going to try to throw the player to this position
--
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