예제 #1
0
void MapgenV6::makeChunk(BlockMakeData *data)
{
	// Pre-conditions
	assert(data->vmanip);
	assert(data->nodedef);
	assert(data->blockpos_requested.X >= data->blockpos_min.X &&
		   data->blockpos_requested.Y >= data->blockpos_min.Y &&
		   data->blockpos_requested.Z >= data->blockpos_min.Z);
	assert(data->blockpos_requested.X <= data->blockpos_max.X &&
		   data->blockpos_requested.Y <= data->blockpos_max.Y &&
		   data->blockpos_requested.Z <= data->blockpos_max.Z);

	this->generating = true;
	this->vm   = data->vmanip;
	this->ndef = data->nodedef;

	// Hack: use minimum block coords for old code that assumes a single block
	v3s16 blockpos_min = data->blockpos_min;
	v3s16 blockpos_max = data->blockpos_max;

	// Area of central chunk
	node_min = blockpos_min * MAP_BLOCKSIZE;
	node_max = (blockpos_max + v3s16(1, 1, 1)) * MAP_BLOCKSIZE - v3s16(1, 1, 1);

	// Full allocated area
	full_node_min = (blockpos_min - 1) * MAP_BLOCKSIZE;
	full_node_max = (blockpos_max + 2) * MAP_BLOCKSIZE - v3s16(1, 1, 1);

	central_area_size = node_max - node_min + v3s16(1, 1, 1);
	assert(central_area_size.X == central_area_size.Z);

	int volume_blocks = (blockpos_max.X - blockpos_min.X + 1)
					  * (blockpos_max.Y - blockpos_min.Y + 1)
					  * (blockpos_max.Z - blockpos_max.Z + 1);

	volume_nodes = volume_blocks *
		MAP_BLOCKSIZE * MAP_BLOCKSIZE * MAP_BLOCKSIZE;

	// Create a block-specific seed
	blockseed = get_blockseed(data->seed, full_node_min);

	// Make some noise
	calculateNoise();

	// Maximum height of the stone surface and obstacles.
	// This is used to guide the cave generation
	s16 stone_surface_max_y;

	// Generate general ground level to full area
	stone_surface_max_y = generateGround();

	generateExperimental();

	// Create initial heightmap to limit caves
	updateHeightmap(node_min, node_max);

	const s16 max_spread_amount = MAP_BLOCKSIZE;
	// Limit dirt flow area by 1 because mud is flown into neighbors.
	s16 mudflow_minpos = -max_spread_amount + 1;
	s16 mudflow_maxpos = central_area_size.X + max_spread_amount - 2;

	// Loop this part, it will make stuff look older and newer nicely
	const u32 age_loops = 2;
	for (u32 i_age = 0; i_age < age_loops; i_age++) { // Aging loop
		// Make caves (this code is relatively horrible)
		if (flags & MG_CAVES)
			generateCaves(stone_surface_max_y);

		// Add mud to the central chunk
		addMud();

		// Flow mud away from steep edges
		if (spflags & MGV6_MUDFLOW)
			flowMud(mudflow_minpos, mudflow_maxpos);

	}

	// Update heightmap after mudflow
	updateHeightmap(node_min, node_max);

	// Add dungeons
	if ((flags & MG_DUNGEONS) && (stone_surface_max_y >= node_min.Y)) {
		DungeonParams dp;

		dp.np_rarity  = nparams_dungeon_rarity;
		dp.np_density = nparams_dungeon_density;
		dp.np_wetness = nparams_dungeon_wetness;
		dp.c_water    = c_water_source;
		if (getBiome(0, node_min) == BT_DESERT) {
			dp.c_cobble = c_desert_stone;
			dp.c_moss   = c_desert_stone;
			dp.c_stair  = c_desert_stone;

			dp.diagonal_dirs = true;
			dp.mossratio     = 0.0;
			dp.holesize      = v3s16(2, 3, 2);
			dp.roomsize      = v3s16(2, 5, 2);
			dp.notifytype    = GENNOTIFY_TEMPLE;
		} else {
			dp.c_cobble = c_cobble;
			dp.c_moss   = c_mossycobble;
			dp.c_stair  = c_stair_cobble;

			dp.diagonal_dirs = false;
			dp.mossratio     = 3.0;
			dp.holesize      = v3s16(1, 2, 1);
			dp.roomsize      = v3s16(0, 0, 0);
			dp.notifytype    = GENNOTIFY_DUNGEON;
		}

		DungeonGen dgen(this, &dp);
		dgen.generate(blockseed, full_node_min, full_node_max);
	}

	// Add top and bottom side of water to transforming_liquid queue
	updateLiquid(full_node_min, full_node_max);

	// Add surface nodes
	growGrass();

	// Generate some trees, and add grass, if a jungle
	if (flags & MG_TREES)
		placeTreesAndJungleGrass();

	// Generate the registered decorations
	m_emerge->decomgr->placeAllDecos(this, blockseed, node_min, node_max);

	// Generate the registered ores
	m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);

	// Calculate lighting
	if (flags & MG_LIGHT)
		calcLighting(node_min, node_max);

	this->generating = false;
}
예제 #2
0
void MapgenV6::makeChunk(BlockMakeData *data) {
	assert(data->vmanip);
	assert(data->nodedef);
	assert(data->blockpos_requested.X >= data->blockpos_min.X &&
		   data->blockpos_requested.Y >= data->blockpos_min.Y &&
		   data->blockpos_requested.Z >= data->blockpos_min.Z);
	assert(data->blockpos_requested.X <= data->blockpos_max.X &&
		   data->blockpos_requested.Y <= data->blockpos_max.Y &&
		   data->blockpos_requested.Z <= data->blockpos_max.Z);
			
	this->generating = true;
	this->vm   = data->vmanip;	
	this->ndef = data->nodedef;
	
	// Hack: use minimum block coords for old code that assumes a single block
	v3s16 blockpos = data->blockpos_requested;
	v3s16 blockpos_min = data->blockpos_min;
	v3s16 blockpos_max = data->blockpos_max;

	// Area of central chunk
	node_min = blockpos_min*MAP_BLOCKSIZE;
	node_max = (blockpos_max+v3s16(1,1,1))*MAP_BLOCKSIZE-v3s16(1,1,1);

	// Full allocated area
	full_node_min = (blockpos_min-1)*MAP_BLOCKSIZE;
	full_node_max = (blockpos_max+2)*MAP_BLOCKSIZE-v3s16(1,1,1);

	central_area_size = node_max - node_min + v3s16(1,1,1);
	assert(central_area_size.X == central_area_size.Z);

	int volume_blocks = (blockpos_max.X - blockpos_min.X + 1)
					  * (blockpos_max.Y - blockpos_min.Y + 1)
					  * (blockpos_max.Z - blockpos_max.Z + 1);

	volume_nodes = volume_blocks *
		MAP_BLOCKSIZE * MAP_BLOCKSIZE * MAP_BLOCKSIZE;

	// Create a block-specific seed
	blockseed = get_blockseed(data->seed, full_node_min);

	// Make some noise
	calculateNoise();

	c_stone           = ndef->getId("mapgen_stone");
	c_dirt            = ndef->getId("mapgen_dirt");
	c_dirt_with_grass = ndef->getId("mapgen_dirt_with_grass");
	c_dirt_with_snow  = ndef->getId("mapgen_dirt_with_snow");
	c_sand            = ndef->getId("mapgen_sand");
	c_water_source    = ndef->getId("mapgen_water_source");
	c_lava_source     = ndef->getId("mapgen_lava_source");
	c_gravel          = ndef->getId("mapgen_gravel");
	c_cobble          = ndef->getId("mapgen_cobble");
	c_desert_sand     = ndef->getId("mapgen_desert_sand");
	c_desert_stone    = ndef->getId("mapgen_desert_stone");
	c_ice             = ndef->getId("mapgen_ice");
	if (c_desert_sand == CONTENT_IGNORE)
		c_desert_sand = c_sand;
	if (c_desert_stone == CONTENT_IGNORE)
		c_desert_stone = c_stone;

	// Maximum height of the stone surface and obstacles.
	// This is used to guide the cave generation
	s16 stone_surface_max_y;

	// Generate general ground level to full area
	stone_surface_max_y = generateGround();

	generateExperimental();

	const s16 max_spread_amount = MAP_BLOCKSIZE;
	// Limit dirt flow area by 1 because mud is flown into neighbors.
	s16 mudflow_minpos = -max_spread_amount + 1;
	s16 mudflow_maxpos = central_area_size.X + max_spread_amount - 2;

	// Loop this part, it will make stuff look older and newer nicely
	const u32 age_loops = 2;
	for (u32 i_age = 0; i_age < age_loops; i_age++) { // Aging loop
		// Make caves (this code is relatively horrible)
		if (flags & MG_CAVES)
			generateCaves(stone_surface_max_y);

		// Add mud to the central chunk
		addMud();

		// Add blobs of dirt and gravel underground
		addDirtGravelBlobs();

		// Flow mud away from steep edges
		flowMud(mudflow_minpos, mudflow_maxpos);

	}
	
	// Add dungeons
	if (flags & MG_DUNGEONS) {
		DungeonGen dgen(ndef, data->seed, water_level);
		dgen.generate(vm, blockseed, full_node_min, full_node_max);
	}
	
	// Add top and bottom side of water to transforming_liquid queue
	updateLiquid(&data->transforming_liquid, full_node_min, full_node_max);

	// Grow grass
	growGrass();

	// Generate some trees, and add grass, if a jungle
	if (flags & MG_TREES)
		placeTreesAndJungleGrass();
	
	// Generate the registered decorations
	for (unsigned int i = 0; i != emerge->decorations.size(); i++) {
		Decoration *deco = emerge->decorations[i];
		deco->placeDeco(this, blockseed + i, node_min, node_max);
	}

	// Generate the registered ores
	for (unsigned int i = 0; i != emerge->ores.size(); i++) {
		Ore *ore = emerge->ores[i];
		ore->placeOre(this, blockseed + i, node_min, node_max);
	}

	// Calculate lighting
	if (!(flags & MG_NOLIGHT))
		calcLighting(node_min - v3s16(1, 1, 1) * MAP_BLOCKSIZE,
					 node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
	
	this->generating = false;
}