summaryrefslogtreecommitdiffstats
path: root/src/Generating/DistortedHeightmap.cpp
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/Generating/DistortedHeightmap.cpp120
1 files changed, 101 insertions, 19 deletions
diff --git a/src/Generating/DistortedHeightmap.cpp b/src/Generating/DistortedHeightmap.cpp
index 404dd4334..d4a0eb6de 100644
--- a/src/Generating/DistortedHeightmap.cpp
+++ b/src/Generating/DistortedHeightmap.cpp
@@ -124,6 +124,14 @@ static cDistortedHeightmap::sBlockInfo tbOFClay[] =
{ E_BLOCK_SAND, 0},
} ;
+static cDistortedHeightmap::sBlockInfo tbOFRedSand[] =
+{
+ { E_BLOCK_SAND, E_META_SAND_RED},
+ { E_BLOCK_SAND, E_META_SAND_RED},
+ { E_BLOCK_SAND, E_META_SAND_RED},
+ { E_BLOCK_SANDSTONE, 0},
+} ;
+
@@ -141,6 +149,7 @@ static cPattern patMycelium (tbMycelium, ARRAYCOUNT(tbMycelium));
static cPattern patOFSand (tbOFSand, ARRAYCOUNT(tbOFSand));
static cPattern patOFClay (tbOFClay, ARRAYCOUNT(tbOFClay));
+static cPattern patOFRedSand(tbOFRedSand, ARRAYCOUNT(tbOFRedSand));
@@ -197,9 +206,9 @@ const cDistortedHeightmap::sGenParam cDistortedHeightmap::m_GenParam[256] =
/* biExtremeHillsPlus */ {32.0f, 32.0f}, // 34 - anyone say extreme plus? Make it extreme plus, then :)
/* biSavanna */ { 2.0f, 2.0f}, // 35
/* biSavannaPlateau */ { 3.0f, 3.0f}, // 36
- /* biMesa */ { 3.0f, 3.0f}, // 37
- /* biMesaPlateauF */ { 3.0f, 3.0f}, // 38
- /* biMesaPlateau */ { 3.0f, 3.0f}, // 39
+ /* biMesa */ { 2.0f, 2.0f}, // 37
+ /* biMesaPlateauF */ { 2.0f, 2.0f}, // 38
+ /* biMesaPlateau */ { 2.0f, 2.0f}, // 39
// biomes 40 .. 128 are unused, 89 empty placeholders here:
{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, // 40 .. 49
@@ -243,8 +252,8 @@ const cDistortedHeightmap::sGenParam cDistortedHeightmap::m_GenParam[256] =
/* biSavannaM */ { 2.0f, 2.0f}, // 163
/* biSavannaPlateauM */ { 3.0f, 3.0f}, // 164
/* biMesaBryce */ { 0.5f, 0.5f}, // 165
- /* biMesaPlateauFM */ { 3.0f, 3.0f}, // 166
- /* biMesaPlateauM */ { 3.0f, 3.0f}, // 167
+ /* biMesaPlateauFM */ { 2.0f, 2.0f}, // 166
+ /* biMesaPlateauM */ { 2.0f, 2.0f}, // 167
} ;
@@ -269,17 +278,7 @@ cDistortedHeightmap::cDistortedHeightmap(int a_Seed, cBiomeGen & a_BiomeGen) :
m_NoiseDistortZ.AddOctave((NOISE_DATATYPE)0.5, (NOISE_DATATYPE)1);
m_NoiseDistortZ.AddOctave((NOISE_DATATYPE)0.25, (NOISE_DATATYPE)2);
- // TODO: Initialize the mesa pattern with a random selection of clay layers:
- for (int i = 0; i < cChunkDef::Height; i++)
- {
- m_MesaPattern[i].BlockMeta = i % 16;
- m_MesaPattern[i].BlockType = E_BLOCK_STAINED_CLAY;
- }
- for (int i = cChunkDef::Height; i < 2 * cChunkDef::Height; i++)
- {
- m_MesaPattern[i].BlockMeta = 0;
- m_MesaPattern[i].BlockType = E_BLOCK_STONE;
- }
+ InitMesaPattern(a_Seed);
}
@@ -306,6 +305,89 @@ void cDistortedHeightmap::Initialize(cIniFile & a_IniFile)
+void cDistortedHeightmap::InitMesaPattern(int a_Seed)
+{
+ // Stone in the bottom half of the pattern:
+ for (int i = cChunkDef::Height; i < 2 * cChunkDef::Height; i++)
+ {
+ m_MesaPattern[i].BlockMeta = 0;
+ m_MesaPattern[i].BlockType = E_BLOCK_STONE;
+ }
+
+ // Stained and hardened clay in the top half of the pattern
+ // In a loop, choose whether to use one or two layers of stained clay, then choose a color and width for each layer
+ // Separate each group with another layer of hardened clay
+ cNoise PatternNoise((unsigned)a_Seed);
+ static NIBBLETYPE AllowedColors[] =
+ {
+ E_META_STAINED_CLAY_YELLOW,
+ E_META_STAINED_CLAY_YELLOW,
+ E_META_STAINED_CLAY_RED,
+ E_META_STAINED_CLAY_RED,
+ E_META_STAINED_CLAY_WHITE,
+ E_META_STAINED_CLAY_BROWN,
+ E_META_STAINED_CLAY_BROWN,
+ E_META_STAINED_CLAY_BROWN,
+ E_META_STAINED_CLAY_ORANGE,
+ E_META_STAINED_CLAY_ORANGE,
+ E_META_STAINED_CLAY_ORANGE,
+ E_META_STAINED_CLAY_ORANGE,
+ E_META_STAINED_CLAY_ORANGE,
+ E_META_STAINED_CLAY_ORANGE,
+ E_META_STAINED_CLAY_LIGHTGRAY,
+ } ;
+ static int LayerSizes[] = // Adjust the chance so that thinner layers occur more commonly
+ {
+ 1, 1, 1, 1, 1, 1,
+ 2, 2, 2, 2,
+ 3, 3,
+ } ;
+ int Idx = cChunkDef::Height - 1;
+ while (Idx >= 0)
+ {
+ // A layer group of 1 - 2 color stained clay:
+ int Random = PatternNoise.IntNoise1DInt(Idx) / 7;
+ int NumLayers = (Random % 2) + 1;
+ Random /= 2;
+ for (int Lay = 0; Lay < NumLayers; Lay++)
+ {
+ int NumBlocks = LayerSizes[(Random % ARRAYCOUNT(LayerSizes))];
+ NIBBLETYPE Color = AllowedColors[(Random / 4) % ARRAYCOUNT(AllowedColors)];
+ if (
+ ((NumBlocks == 3) && (NumLayers == 2)) || // In two-layer mode disallow the 3-high layers:
+ (Color == E_META_STAINED_CLAY_WHITE)) // White stained clay can ever be only 1 block high
+ {
+ NumBlocks = 1;
+ }
+ NumBlocks = std::min(Idx + 1, NumBlocks); // Limit by Idx so that we don't have to check inside the loop
+ Random /= 32;
+ for (int Block = 0; Block < NumBlocks; Block++, Idx--)
+ {
+ m_MesaPattern[Idx].BlockMeta = Color;
+ m_MesaPattern[Idx].BlockType = E_BLOCK_STAINED_CLAY;
+ } // for Block
+ } // for Lay
+
+ // A layer of hardened clay in between the layer group:
+ int NumBlocks = (Random % 4) + 1; // All heights the same probability
+ if ((NumLayers == 2) && (NumBlocks < 4))
+ {
+ // For two layers of stained clay, add an extra block of hardened clay:
+ NumBlocks++;
+ }
+ NumBlocks = std::min(Idx + 1, NumBlocks); // Limit by Idx so that we don't have to check inside the loop
+ for (int Block = 0; Block < NumBlocks; Block++, Idx--)
+ {
+ m_MesaPattern[Idx].BlockMeta = 0;
+ m_MesaPattern[Idx].BlockType = E_BLOCK_HARDENED_CLAY;
+ } // for Block
+ } // while (Idx >= 0)
+}
+
+
+
+
+
void cDistortedHeightmap::PrepareState(int a_ChunkX, int a_ChunkZ)
{
if ((m_CurChunkX == a_ChunkX) && (m_CurChunkZ == a_ChunkZ))
@@ -708,8 +790,8 @@ void cDistortedHeightmap::FillColumnMesa(cChunkDesc & a_ChunkDesc, int a_RelX, i
int Top = a_ChunkDesc.GetHeight(a_RelX, a_RelZ);
if (Top < m_SeaLevel)
{
- // The terrain is below sealevel, handle as regular dirt terrain:
- FillColumnPattern(a_ChunkDesc, a_RelX, a_RelZ, patDirt.Get());
+ // The terrain is below sealevel, handle as regular ocean:
+ FillColumnPattern(a_ChunkDesc, a_RelX, a_RelZ, patOFRedSand.Get());
return;
}
@@ -721,7 +803,7 @@ void cDistortedHeightmap::FillColumnMesa(cChunkDesc & a_ChunkDesc, int a_RelX, i
ClayFloor = Top - 1;
}
- if (Top - ClayFloor < 5)
+ if (Top - m_SeaLevel < 5)
{
// Simple case: top is red sand, then hardened clay down to ClayFloor, then stone:
a_ChunkDesc.SetBlockTypeMeta(a_RelX, Top, a_RelZ, E_BLOCK_SAND, E_META_SAND_RED);