881ad8d8db
git-svn-id: http://mc-server.googlecode.com/svn/trunk@881 0a769ca7-a7f5-676a-18bf-c427514a06d6
428 lines
11 KiB
C++
428 lines
11 KiB
C++
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// CompoGen.cpp
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/* Implements the various terrain composition generators:
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- cCompoGenSameBlock
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- cCompoGenDebugBiomes
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- cCompoGenClassic
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*/
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#include "Globals.h"
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#include "CompoGen.h"
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#include "../BlockID.h"
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// cCompoGenSameBlock:
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void cCompoGenSameBlock::ComposeTerrain(
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int a_ChunkX, int a_ChunkZ,
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cChunkDef::BlockTypes & a_BlockTypes, // BlockTypes to be generated
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cChunkDef::BlockNibbles & a_BlockMeta, // BlockMetas to be generated
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const cChunkDef::HeightMap & a_HeightMap, // The height map to fit
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const cChunkDef::BiomeMap & a_BiomeMap, // Biomes to adhere to
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cEntityList & a_Entities, // Entitites may be generated along with the terrain
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cBlockEntityList & a_BlockEntities // Block entitites may be generated (chests / furnaces / ...)
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)
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{
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memset(a_BlockTypes, E_BLOCK_AIR, sizeof(a_BlockTypes));
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memset(a_BlockMeta, 0, sizeof(a_BlockMeta));
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for (int z = 0; z < cChunkDef::Width; z++)
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{
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for (int x = 0; x < cChunkDef::Width; x++)
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{
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int Start;
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if (m_IsBedrocked)
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{
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a_BlockTypes[cChunkDef::MakeIndex(x, 0, z)] = E_BLOCK_BEDROCK;
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Start = 1;
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}
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else
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{
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Start = 0;
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}
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for (int y = a_HeightMap[x + cChunkDef::Width * z]; y >= Start; y--)
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{
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a_BlockTypes[cChunkDef::MakeIndex(x, y, z)] = m_BlockType;
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} // for y
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} // for z
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} // for x
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// cCompoGenDebugBiomes:
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void cCompoGenDebugBiomes::ComposeTerrain(
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int a_ChunkX, int a_ChunkZ,
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cChunkDef::BlockTypes & a_BlockTypes, // BlockTypes to be generated
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cChunkDef::BlockNibbles & a_BlockMeta, // BlockMetas to be generated
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const cChunkDef::HeightMap & a_HeightMap, // The height map to fit
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const cChunkDef::BiomeMap & a_BiomeMap, // Biomes to adhere to
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cEntityList & a_Entities, // Entitites may be generated along with the terrain
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cBlockEntityList & a_BlockEntities // Block entitites may be generated (chests / furnaces / ...)
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)
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{
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static BLOCKTYPE Blocks[] =
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{
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E_BLOCK_STONE,
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E_BLOCK_COBBLESTONE,
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E_BLOCK_LOG,
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E_BLOCK_PLANKS,
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E_BLOCK_SANDSTONE,
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E_BLOCK_WHITE_CLOTH,
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E_BLOCK_COAL_ORE,
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E_BLOCK_IRON_ORE,
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E_BLOCK_GOLD_ORE,
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E_BLOCK_DIAMOND_ORE,
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E_BLOCK_LAPIS_ORE,
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E_BLOCK_REDSTONE_ORE,
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E_BLOCK_IRON_BLOCK,
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E_BLOCK_GOLD_BLOCK,
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E_BLOCK_DIAMOND_BLOCK,
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E_BLOCK_LAPIS_BLOCK,
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E_BLOCK_BRICK,
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E_BLOCK_MOSSY_COBBLESTONE,
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E_BLOCK_OBSIDIAN,
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E_BLOCK_NETHERRACK,
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E_BLOCK_SOULSAND,
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E_BLOCK_NETHER_BRICK,
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E_BLOCK_BEDROCK,
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} ;
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memset(a_BlockTypes, E_BLOCK_AIR, sizeof(a_BlockTypes));
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memset(a_BlockMeta, 0, sizeof(a_BlockMeta));
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for (int z = 0; z < cChunkDef::Width; z++)
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{
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for (int x = 0; x < cChunkDef::Width; x++)
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{
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BLOCKTYPE BlockType = Blocks[cChunkDef::GetBiome(a_BiomeMap, x, z) % ARRAYCOUNT(Blocks)];
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for (int y = a_HeightMap[x + cChunkDef::Width * z]; y >= 0; y--)
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{
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cChunkDef::SetBlock(a_BlockTypes, x, y, z, BlockType);
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} // for y
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} // for z
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} // for x
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// cCompoGenClassic:
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cCompoGenClassic::cCompoGenClassic(
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int a_SeaLevel, int a_BeachHeight, int a_BeachDepth,
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BLOCKTYPE a_BlockTop, BLOCKTYPE a_BlockMiddle, BLOCKTYPE a_BlockBottom,
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BLOCKTYPE a_BlockBeach, BLOCKTYPE a_BlockBeachBottom, BLOCKTYPE a_BlockSea
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) :
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m_SeaLevel(a_SeaLevel),
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m_BeachHeight(a_BeachHeight),
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m_BeachDepth(a_BeachDepth),
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m_BlockTop(a_BlockTop),
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m_BlockMiddle(a_BlockMiddle),
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m_BlockBottom(a_BlockBottom),
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m_BlockBeach(a_BlockBeach),
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m_BlockBeachBottom(a_BlockBeachBottom),
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m_BlockSea(a_BlockSea)
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{
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}
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void cCompoGenClassic::ComposeTerrain(
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int a_ChunkX, int a_ChunkZ,
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cChunkDef::BlockTypes & a_BlockTypes, // BlockTypes to be generated
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cChunkDef::BlockNibbles & a_BlockMeta, // BlockMetas to be generated
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const cChunkDef::HeightMap & a_HeightMap, // The height map to fit
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const cChunkDef::BiomeMap & a_BiomeMap, // Biomes to adhere to
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cEntityList & a_Entities, // Entitites may be generated along with the terrain
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cBlockEntityList & a_BlockEntities // Block entitites may be generated (chests / furnaces / ...)
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)
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{
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/* The classic composition means:
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- 1 layer of grass, 3 of dirt and the rest stone, if the height > sealevel + beachheight
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- 3 sand and a 1 sandstone, rest stone if between sealevel and sealevel + beachheight
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- water from waterlevel to height, then 3 sand, 1 sandstone, the rest stone, if water depth < beachdepth
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- water from waterlevel, then 3 dirt, the rest stone otherwise
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- bedrock at the bottom
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*/
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memset(a_BlockTypes, E_BLOCK_AIR, sizeof(a_BlockTypes));
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memset(a_BlockMeta, 0, sizeof(a_BlockMeta));
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// The patterns to use for different situations, must be same length!
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static const BLOCKTYPE PatternGround[] = {m_BlockTop, m_BlockMiddle, m_BlockMiddle, m_BlockMiddle} ;
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static const BLOCKTYPE PatternBeach[] = {m_BlockBeach, m_BlockBeach, m_BlockBeach, m_BlockBeachBottom} ;
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static const BLOCKTYPE PatternOcean[] = {m_BlockMiddle, m_BlockMiddle, m_BlockMiddle, m_BlockBottom} ;
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static int PatternLength = ARRAYCOUNT(PatternGround);
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ASSERT(ARRAYCOUNT(PatternGround) == ARRAYCOUNT(PatternBeach));
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ASSERT(ARRAYCOUNT(PatternGround) == ARRAYCOUNT(PatternOcean));
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for (int z = 0; z < cChunkDef::Width; z++)
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{
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for (int x = 0; x < cChunkDef::Width; x++)
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{
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int Height = cChunkDef::GetHeight(a_HeightMap, x, z);
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const BLOCKTYPE * Pattern;
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if (Height > m_SeaLevel + m_BeachHeight)
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{
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Pattern = PatternGround;
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}
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else if (Height > m_SeaLevel - m_BeachDepth)
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{
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Pattern = PatternBeach;
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}
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else
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{
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Pattern = PatternOcean;
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}
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// Fill water from sealevel down to height (if any):
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for (int y = m_SeaLevel; y >= Height; --y)
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{
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cChunkDef::SetBlock(a_BlockTypes, x, y, z, m_BlockSea);
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}
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// Fill from height till the bottom:
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for (int y = Height; y >= 1; y--)
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{
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cChunkDef::SetBlock(a_BlockTypes, x, y, z, (Height - y < PatternLength) ? Pattern[Height - y] : m_BlockBottom);
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}
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// The last layer is always bedrock:
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cChunkDef::SetBlock(a_BlockTypes, x, 0, z, E_BLOCK_BEDROCK);
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} // for x
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} // for z
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// cCompoGenBiomal:
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void cCompoGenBiomal::ComposeTerrain(
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int a_ChunkX, int a_ChunkZ,
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cChunkDef::BlockTypes & a_BlockTypes, // BlockTypes to be generated
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cChunkDef::BlockNibbles & a_BlockMeta, // BlockMetas to be generated
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const cChunkDef::HeightMap & a_HeightMap, // The height map to fit
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const cChunkDef::BiomeMap & a_BiomeMap, // Biomes to adhere to
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cEntityList & a_Entities, // Entitites may be generated along with the terrain
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cBlockEntityList & a_BlockEntities // Block entitites may be generated (chests / furnaces / ...)
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)
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{
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memset(a_BlockTypes, 0, sizeof(a_BlockTypes));
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memset(a_BlockMeta, 0, sizeof(a_BlockMeta));
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for (int z = 0; z < cChunkDef::Width; z++)
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{
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for (int x = 0; x < cChunkDef::Width; x++)
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{
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int Height = cChunkDef::GetHeight(a_HeightMap, x, z);
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if (Height > m_SeaLevel)
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{
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switch (cChunkDef::GetBiome(a_BiomeMap, x, z))
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{
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case biOcean:
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case biPlains:
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case biExtremeHills:
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case biForest:
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case biTaiga:
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case biSwampland:
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case biRiver:
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case biFrozenOcean:
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case biFrozenRiver:
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case biIcePlains:
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case biIceMountains:
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case biForestHills:
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case biTaigaHills:
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case biExtremeHillsEdge:
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case biJungle:
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case biJungleHills:
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{
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FillColumnGrass(x, z, Height, a_BlockTypes);
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break;
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}
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case biDesertHills:
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case biDesert:
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case biBeach:
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{
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FillColumnSand(x, z, Height, a_BlockTypes);
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break;
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}
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case biMushroomIsland:
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case biMushroomShore:
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{
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FillColumnMycelium(x, z, Height, a_BlockTypes);
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break;
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}
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default:
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{
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// TODO
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ASSERT(!"CompoGenBiomal: Biome not implemented yet!");
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break;
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}
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}
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}
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else
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{
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switch (cChunkDef::GetBiome(a_BiomeMap, x, z))
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{
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case biDesert:
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case biBeach:
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{
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// Fill with water, sand, sandstone and stone
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FillColumnWaterSand(x, z, Height, a_BlockTypes);
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break;
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}
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default:
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{
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// Fill with water, sand/dirt/clay mix and stone
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FillColumnWaterMix(a_ChunkX, a_ChunkZ, x, z, Height, a_BlockTypes);
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break;
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}
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} // switch (biome)
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} // else (under water)
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cChunkDef::SetBlock(a_BlockTypes, x, 0, z, E_BLOCK_BEDROCK);
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} // for x
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} // for z
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}
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void cCompoGenBiomal::FillColumnGrass(int a_RelX, int a_RelZ, int a_Height, cChunkDef::BlockTypes & a_BlockTypes)
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{
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BLOCKTYPE Pattern[] =
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{
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E_BLOCK_GRASS,
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E_BLOCK_DIRT,
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E_BLOCK_DIRT,
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E_BLOCK_DIRT,
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} ;
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FillColumnPattern(a_RelX, a_RelZ, a_Height, a_BlockTypes, Pattern, ARRAYCOUNT(Pattern));
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for (int y = a_Height - ARRAYCOUNT(Pattern); y > 0; y--)
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{
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cChunkDef::SetBlock(a_BlockTypes, a_RelX, y, a_RelZ, E_BLOCK_STONE);
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}
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}
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void cCompoGenBiomal::FillColumnSand(int a_RelX, int a_RelZ, int a_Height, cChunkDef::BlockTypes & a_BlockTypes)
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{
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BLOCKTYPE Pattern[] =
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{
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E_BLOCK_SAND,
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E_BLOCK_SAND,
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E_BLOCK_SAND,
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E_BLOCK_SANDSTONE,
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} ;
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FillColumnPattern(a_RelX, a_RelZ, a_Height, a_BlockTypes, Pattern, ARRAYCOUNT(Pattern));
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for (int y = a_Height - ARRAYCOUNT(Pattern); y > 0; y--)
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{
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cChunkDef::SetBlock(a_BlockTypes, a_RelX, y, a_RelZ, E_BLOCK_STONE);
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}
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}
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void cCompoGenBiomal::FillColumnMycelium (int a_RelX, int a_RelZ, int a_Height, cChunkDef::BlockTypes & a_BlockTypes)
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{
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BLOCKTYPE Pattern[] =
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{
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E_BLOCK_MYCELIUM,
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E_BLOCK_DIRT,
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E_BLOCK_DIRT,
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E_BLOCK_DIRT,
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} ;
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FillColumnPattern(a_RelX, a_RelZ, a_Height, a_BlockTypes, Pattern, ARRAYCOUNT(Pattern));
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for (int y = a_Height - ARRAYCOUNT(Pattern); y > 0; y--)
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{
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cChunkDef::SetBlock(a_BlockTypes, a_RelX, y, a_RelZ, E_BLOCK_STONE);
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}
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}
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void cCompoGenBiomal::FillColumnWaterSand(int a_RelX, int a_RelZ, int a_Height, cChunkDef::BlockTypes & a_BlockTypes)
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{
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FillColumnSand(a_RelX, a_RelZ, a_Height, a_BlockTypes);
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for (int y = a_Height + 1; y <= m_SeaLevel + 1; y++)
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{
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cChunkDef::SetBlock(a_BlockTypes, a_RelX, y, a_RelZ, E_BLOCK_WATER);
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}
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}
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void cCompoGenBiomal::FillColumnWaterMix(int a_ChunkX, int a_ChunkZ, int a_RelX, int a_RelZ, int a_Height, cChunkDef::BlockTypes & a_BlockTypes)
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{
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if (m_Noise.CubicNoise2D(0.5f * (cChunkDef::Width * a_ChunkX + a_RelX), 0.5f * (cChunkDef::Width * a_ChunkZ + a_RelZ)) < 0)
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{
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FillColumnWaterSand(a_RelX, a_RelZ, a_Height, a_BlockTypes);
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}
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else
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{
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// Dirt
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BLOCKTYPE Pattern[] =
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{
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E_BLOCK_DIRT,
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E_BLOCK_DIRT,
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E_BLOCK_DIRT,
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E_BLOCK_DIRT,
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} ;
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FillColumnPattern(a_RelX, a_RelZ, a_Height, a_BlockTypes, Pattern, ARRAYCOUNT(Pattern));
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for (int y = a_Height - ARRAYCOUNT(Pattern); y > 0; y--)
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{
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cChunkDef::SetBlock(a_BlockTypes, a_RelX, y, a_RelZ, E_BLOCK_STONE);
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}
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for (int y = a_Height + 1; y <= m_SeaLevel + 1; y++)
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{
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cChunkDef::SetBlock(a_BlockTypes, a_RelX, y, a_RelZ, E_BLOCK_WATER);
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}
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}
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}
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void cCompoGenBiomal::FillColumnPattern(int a_RelX, int a_RelZ, int a_Height, cChunkDef::BlockTypes & a_BlockTypes, const BLOCKTYPE * a_Pattern, int a_PatternSize)
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{
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for (int y = a_Height, idx = 0; (y >= 0) && (idx < a_PatternSize); y--, idx++)
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{
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cChunkDef::SetBlock(a_BlockTypes, a_RelX, y, a_RelZ, a_Pattern[idx]);
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}
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}
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