mirror of
https://github.com/minetest/minetest.git
synced 2024-08-19 04:54:18 +02:00
Add Lua on_mapgen_init callback, and minetest.set_mapgen_params API
This commit is contained in:
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18882a4d26
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2e292b67a0
@ -307,6 +307,7 @@ end
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minetest.registered_on_chat_messages, minetest.register_on_chat_message = make_registration()
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minetest.registered_globalsteps, minetest.register_globalstep = make_registration()
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minetest.registered_on_mapgen_inits, minetest.register_on_mapgen_init = make_registration()
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minetest.registered_on_shutdown, minetest.register_on_shutdown = make_registration()
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minetest.registered_on_punchnodes, minetest.register_on_punchnode = make_registration()
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minetest.registered_on_placenodes, minetest.register_on_placenode = make_registration()
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@ -1034,6 +1034,9 @@ minetest.register_on_player_receive_fields(func(player, formname, fields))
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^ Called when a button is pressed in player's inventory form
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^ Newest functions are called first
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^ If function returns true, remaining functions are not called
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minetest.register_on_mapgen_init(func(MapgenParams))
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^ Called just before the map generator is initialized but before the environment is initialized
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^ MapgenParams consists of a table with the fields mgname, seed, water_level, and flags
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Other registration functions:
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minetest.register_chatcommand(cmd, chatcommand definition)
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@ -1118,6 +1121,14 @@ minetest.get_voxel_manip()
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^ Return voxel manipulator object
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minetest.get_mapgen_object(objectname)
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^ Return requested mapgen object if available (see Mapgen objects)
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minetest.set_mapgen_params(MapgenParams)
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^ Set map generation parameters
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^ Function can *only* be called within a minetest.on_mapgen_init() callback
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^ Takes a table as an argument with the fields mgname, seed, water_level, flags, and flagmask.
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^ Leave field unset to leave that parameter unchanged
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^ flagmask field must be set to all mapgen flags that are being modified
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^ flags contains only the flags that are being set
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^ flags and flagmask are in the same format and have the same options as 'mgflags' in minetest.conf
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minetest.clear_objects()
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^ clear all objects in the environments
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minetest.line_of_sight(pos1,pos2,stepsize) ->true/false
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@ -331,7 +331,7 @@
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#water_level = 1
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# Size of chunks to be generated.
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#chunksize = 5
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# Map generation attributes. Currently supported: trees, caves, flat, v6_biome_blend, v6_jungles, dungeons
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# Map generation attributes. Currently supported: trees, caves, flat, v6_biome_blend, v6_jungles, dungeons, nolight
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#mg_flags = trees, caves, v6_biome_blend
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# How large deserts and beaches are
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#mgv6_freq_desert = 0.45
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@ -59,6 +59,10 @@ EmergeManager::EmergeManager(IGameDef *gamedef) {
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this->biomedef = new BiomeDefManager();
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this->params = NULL;
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this->luaoverride_params = NULL;
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this->luaoverride_params_modified = 0;
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this->luaoverride_flagmask = 0;
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mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
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queuemutex.Init();
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@ -124,12 +128,37 @@ void EmergeManager::initMapgens(MapgenParams *mgparams) {
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if (mapgen.size())
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return;
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// Resolve names of nodes for things that were registered
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// (at this point, the registration period is over)
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biomedef->resolveNodeNames(ndef);
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for (size_t i = 0; i != ores.size(); i++)
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ores[i]->resolveNodeNames(ndef);
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for (size_t i = 0; i != decorations.size(); i++)
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decorations[i]->resolveNodeNames(ndef);
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// Apply mapgen parameter overrides from Lua
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if (luaoverride_params) {
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if (luaoverride_params_modified & MGPARAMS_SET_MGNAME)
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mgparams->mg_name = luaoverride_params->mg_name;
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if (luaoverride_params_modified & MGPARAMS_SET_SEED)
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mgparams->seed = luaoverride_params->seed;
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if (luaoverride_params_modified & MGPARAMS_SET_WATER_LEVEL)
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mgparams->water_level = luaoverride_params->water_level;
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if (luaoverride_params_modified & MGPARAMS_SET_FLAGS) {
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mgparams->flags &= ~luaoverride_flagmask;
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mgparams->flags |= luaoverride_params->flags;
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}
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delete luaoverride_params;
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luaoverride_params = NULL;
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}
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// Create the mapgens
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this->params = mgparams;
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for (size_t i = 0; i != emergethread.size(); i++) {
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mg = createMapgen(params->mg_name, 0, params);
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@ -24,6 +24,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include <queue>
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#include "util/thread.h"
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#define MGPARAMS_SET_MGNAME 1
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#define MGPARAMS_SET_SEED 2
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#define MGPARAMS_SET_WATER_LEVEL 4
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#define MGPARAMS_SET_FLAGS 8
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#define BLOCK_EMERGE_ALLOWGEN (1<<0)
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#define EMERGE_DBG_OUT(x) \
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@ -79,6 +84,10 @@ public:
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u16 qlimit_diskonly;
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u16 qlimit_generate;
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MapgenParams *luaoverride_params;
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u32 luaoverride_params_modified;
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u32 luaoverride_flagmask;
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//block emerge queue data structures
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JMutex queuemutex;
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std::map<v3s16, BlockEmergeData *> blocks_enqueued;
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@ -44,6 +44,7 @@ FlagDesc flagdesc_mapgen[] = {
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{"v6_jungles", MGV6_JUNGLES},
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{"v6_biome_blend", MGV6_BIOME_BLEND},
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{"flat", MG_FLAT},
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{"nolight", MG_NOLIGHT},
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{NULL, 0}
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};
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@ -35,6 +35,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#define MGV6_JUNGLES 0x08
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#define MGV6_BIOME_BLEND 0x10
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#define MG_FLAT 0x20
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#define MG_NOLIGHT 0x40
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/////////////////// Ore generation flags
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// Use absolute value of height to determine ore placement
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@ -80,8 +81,8 @@ struct MapgenParams {
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flags = MG_TREES | MG_CAVES | MGV6_BIOME_BLEND;
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}
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virtual bool readParams(Settings *settings) = 0;
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virtual void writeParams(Settings *settings) = 0;
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virtual bool readParams(Settings *settings) { return true; }
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virtual void writeParams(Settings *settings) {}
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virtual ~MapgenParams() {}
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};
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@ -171,8 +171,8 @@ void MapgenMathParams::writeParams(Settings *settings) {
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MapgenMath::MapgenMath(int mapgenid, MapgenMathParams *params_, EmergeManager *emerge) : MapgenV7(mapgenid, params_, emerge) {
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mg_params = params_;
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this->lighting = 0;
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this->ridges = 0;
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this->flags |= MG_NOLIGHT;
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this->ridges = 0;
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Json::Value & params = mg_params->params;
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invert = params["invert"].empty() ? 1 : params["invert"].asBool(); //params["invert"].empty()?1:params["invert"].asBool();
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@ -42,6 +42,7 @@ void MapgenSinglenodeParams::writeParams(Settings *settings) {
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///////////////////////////////////////////////////////////////////////////////
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MapgenSinglenode::MapgenSinglenode(int mapgenid, MapgenSinglenodeParams *params) {
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flags = params->flags;
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}
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@ -91,8 +92,9 @@ void MapgenSinglenode::makeChunk(BlockMakeData *data) {
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updateLiquid(&data->transforming_liquid, node_min, node_max);
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// Calculate lighting
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calcLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE,
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node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
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if (!(flags & MG_NOLIGHT))
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calcLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE,
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node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
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this->generating = false;
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}
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@ -33,6 +33,8 @@ struct MapgenSinglenodeParams : public MapgenParams {
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class MapgenSinglenode : public Mapgen {
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public:
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u32 flags;
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MapgenSinglenode(int mapgenid, MapgenSinglenodeParams *params);
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~MapgenSinglenode();
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@ -459,8 +459,9 @@ void MapgenV6::makeChunk(BlockMakeData *data) {
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}
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// Calculate lighting
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calcLighting(node_min - v3s16(1, 1, 1) * MAP_BLOCKSIZE,
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node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
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if (!(flags & MG_NOLIGHT))
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calcLighting(node_min - v3s16(1, 1, 1) * MAP_BLOCKSIZE,
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node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
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this->generating = false;
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}
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@ -77,7 +77,6 @@ MapgenV7::MapgenV7(int mapgenid, MapgenV7Params *params, EmergeManager *emerge)
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this->seed = (int)params->seed;
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this->water_level = params->water_level;
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this->flags = params->flags;
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this->lighting = 1;
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this->ridges = 1;
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this->csize = v3s16(1, 1, 1) * params->chunksize * MAP_BLOCKSIZE;
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@ -215,9 +214,9 @@ void MapgenV7::makeChunk(BlockMakeData *data) {
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updateLiquid(&data->transforming_liquid, full_node_min, full_node_max);
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if (this->lighting)
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if (!(flags & MG_NOLIGHT))
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calcLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE,
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node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
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node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
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//setLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE,
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// node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE, 0xFF);
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@ -59,7 +59,6 @@ public:
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int ystride;
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u32 flags;
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bool lighting;
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bool ridges;
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u32 blockseed;
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@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include "common/c_converter.h"
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#include "log.h"
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#include "environment.h"
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#include "mapgen.h"
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#include "lua_api/l_env.h"
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extern "C" {
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@ -55,6 +56,33 @@ void ScriptApiEnv::environment_Step(float dtime)
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runCallbacks(1, RUN_CALLBACKS_MODE_FIRST);
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}
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void ScriptApiEnv::environment_OnMapgenInit(MapgenParams *mgparams)
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{
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SCRIPTAPI_PRECHECKHEADER
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// Get minetest.registered_on_mapgen_inits
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lua_getglobal(L, "minetest");
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lua_getfield(L, -1, "registered_on_mapgen_inits");
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// Call callbacks
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lua_newtable(L);
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lua_pushstring(L, mgparams->mg_name.c_str());
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lua_setfield(L, -2, "mgname");
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lua_pushinteger(L, mgparams->seed);
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lua_setfield(L, -2, "seed");
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lua_pushinteger(L, mgparams->water_level);
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lua_setfield(L, -2, "water_level");
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std::string flagstr = writeFlagString(mgparams->flags, flagdesc_mapgen);
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lua_pushstring(L, flagstr.c_str());
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lua_setfield(L, -2, "flags");
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runCallbacks(1, RUN_CALLBACKS_MODE_FIRST);
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}
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void ScriptApiEnv::initializeEnvironment(ServerEnvironment *env)
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{
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SCRIPTAPI_PRECHECKHEADER
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@ -24,6 +24,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include "irr_v3d.h"
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class ServerEnvironment;
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struct MapgenParams;
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class ScriptApiEnv
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: virtual public ScriptApiBase
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@ -33,6 +34,8 @@ public:
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void environment_Step(float dtime);
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// After generating a piece of map
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void environment_OnGenerated(v3s16 minp, v3s16 maxp,u32 blockseed);
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// After initializing mapgens
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void environment_OnMapgenInit(MapgenParams *mgparams);
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void initializeEnvironment(ServerEnvironment *env);
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};
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@ -652,6 +652,59 @@ int ModApiEnvMod::l_get_mapgen_object(lua_State *L)
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return nargs;
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}
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// minetest.set_mapgen_params(params)
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// set mapgen parameters
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int ModApiEnvMod::l_set_mapgen_params(lua_State *L)
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{
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if (!lua_istable(L, 1))
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return 0;
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EmergeManager *emerge = getServer(L)->getEmergeManager();
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if (emerge->mapgen.size())
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return 0;
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MapgenParams *oparams = new MapgenParams;
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u32 paramsmodified = 0;
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u32 flagmask = 0;
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lua_getfield(L, 1, "mgname");
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if (lua_isstring(L, -1)) {
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oparams->mg_name = std::string(lua_tostring(L, -1));
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paramsmodified |= MGPARAMS_SET_MGNAME;
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}
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lua_getfield(L, 1, "seed");
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if (lua_isnumber(L, -1)) {
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oparams->seed = lua_tointeger(L, -1);
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paramsmodified |= MGPARAMS_SET_SEED;
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}
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lua_getfield(L, 1, "water_level");
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if (lua_isnumber(L, -1)) {
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oparams->water_level = lua_tointeger(L, -1);
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paramsmodified |= MGPARAMS_SET_WATER_LEVEL;
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}
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lua_getfield(L, 1, "flags");
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if (lua_isstring(L, -1)) {
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std::string flagstr = std::string(lua_tostring(L, -1));
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oparams->flags = readFlagString(flagstr, flagdesc_mapgen);
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paramsmodified |= MGPARAMS_SET_FLAGS;
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lua_getfield(L, 1, "flagmask");
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if (lua_isstring(L, -1)) {
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flagstr = std::string(lua_tostring(L, -1));
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flagmask = readFlagString(flagstr, flagdesc_mapgen);
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}
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}
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emerge->luaoverride_params = oparams;
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emerge->luaoverride_params_modified = paramsmodified;
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emerge->luaoverride_flagmask = flagmask;
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return 0;
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}
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// minetest.clear_objects()
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// clear all objects in the environment
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int ModApiEnvMod::l_clear_objects(lua_State *L)
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@ -799,6 +852,7 @@ bool ModApiEnvMod::Initialize(lua_State *L,int top)
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retval &= API_FCT(get_perlin_map);
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retval &= API_FCT(get_voxel_manip);
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retval &= API_FCT(get_mapgen_object);
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retval &= API_FCT(set_mapgen_params);
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retval &= API_FCT(clear_objects);
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retval &= API_FCT(spawn_tree);
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retval &= API_FCT(find_path);
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@ -117,6 +117,10 @@ private:
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// minetest.get_mapgen_object(objectname)
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// returns the requested object used during map generation
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static int l_get_mapgen_object(lua_State *L);
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// minetest.set_mapgen_params(params)
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// set mapgen parameters
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static int l_set_mapgen_params(lua_State *L);
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// minetest.clear_objects()
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// clear all objects in the environment
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@ -807,7 +807,12 @@ Server::Server(
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ServerMap *servermap = new ServerMap(path_world, this, m_emerge);
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m_env = new ServerEnvironment(servermap, m_script, this, this);
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m_emerge->initMapgens(servermap->getMapgenParams());
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// Run some callbacks after the MG params have been set up but before activation
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MapgenParams *mgparams = servermap->getMapgenParams();
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m_script->environment_OnMapgenInit(mgparams);
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// Initialize mapgens
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m_emerge->initMapgens(mgparams);
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// Give environment reference to scripting api
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m_script->initializeEnvironment(m_env);
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