diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/lua_api.txt | 214 |
1 files changed, 128 insertions, 86 deletions
diff --git a/doc/lua_api.txt b/doc/lua_api.txt index 9e9356be6..1c8766de8 100644 --- a/doc/lua_api.txt +++ b/doc/lua_api.txt @@ -2854,19 +2854,20 @@ handler. * Set node on all positions set in the first argument. * e.g. `minetest.bulk_set_node({{x=0, y=1, z=1}, {x=1, y=2, z=2}}, {name="default:stone"})` * For node specification or position syntax see `minetest.set_node` call - * Faster than set_node due to single call, but still considerably slower than - Voxel Manipulators (LVM) for large numbers of nodes. - Unlike LVMs, this will call node callbacks. It also allows setting nodes in spread out - positions which would cause LVMs to waste memory. - For setting a cube, this is 1.3x faster than set_node whereas LVM is 20x faster. + * Faster than set_node due to single call, but still considerably slower + than Lua Voxel Manipulators (LVM) for large numbers of nodes. + Unlike LVMs, this will call node callbacks. It also allows setting nodes + in spread out positions which would cause LVMs to waste memory. + For setting a cube, this is 1.3x faster than set_node whereas LVM is 20 + times faster. * `minetest.swap_node(pos, node)` * Set node at position, but don't remove metadata * `minetest.remove_node(pos)` * By default it does the same as `minetest.set_node(pos, {name="air"})` * `minetest.get_node(pos)` * Returns the node at the given position as table in the format - `{name="node_name", param1=0, param2=0}`, returns `{name="ignore", param1=0, param2=0}` - for unloaded areas. + `{name="node_name", param1=0, param2=0}`, + returns `{name="ignore", param1=0, param2=0}` for unloaded areas. * `minetest.get_node_or_nil(pos)` * Same as `get_node` but returns `nil` for unloaded areas. * `minetest.get_node_light(pos, timeofday)` @@ -2888,36 +2889,45 @@ handler. * Returns `true` if successful, `false` on failure * `minetest.find_nodes_with_meta(pos1, pos2)` - * Get a table of positions of nodes that have metadata within a region {pos1, pos2} + * Get a table of positions of nodes that have metadata within a region + {pos1, pos2}. * `minetest.get_meta(pos)` * Get a `NodeMetaRef` at that position * `minetest.get_node_timer(pos)` * Get `NodeTimerRef` -* `minetest.add_entity(pos, name, [staticdata])`: Spawn Lua-defined entity at position +* `minetest.add_entity(pos, name, [staticdata])`: Spawn Lua-defined entity at + position. * Returns `ObjectRef`, or `nil` if failed * `minetest.add_item(pos, item)`: Spawn item * Returns `ObjectRef`, or `nil` if failed * `minetest.get_player_by_name(name)`: Get an `ObjectRef` to a player -* `minetest.get_objects_inside_radius(pos, radius)`: returns a list of ObjectRefs +* `minetest.get_objects_inside_radius(pos, radius)`: returns a list of + ObjectRefs. * `radius`: using an euclidean metric * `minetest.set_timeofday(val)` * `val` is between `0` and `1`; `0` for midnight, `0.5` for midday * `minetest.get_timeofday()` -* `minetest.get_gametime()`: returns the time, in seconds, since the world was created -* `minetest.get_day_count()`: returns number days elapsed since world was created, - * accounting for time changes. -* `minetest.find_node_near(pos, radius, nodenames, [search_center])`: returns pos or `nil` +* `minetest.get_gametime()`: returns the time, in seconds, since the world was + created. +* `minetest.get_day_count()`: returns number days elapsed since world was + created. + * accounts for time changes. +* `minetest.find_node_near(pos, radius, nodenames, [search_center])`: returns + pos or `nil`. * `radius`: using a maximum metric * `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"` * `search_center` is an optional boolean (default: `false`) If true `pos` is also checked for the nodes -* `minetest.find_nodes_in_area(pos1, pos2, nodenames)`: returns a list of positions +* `minetest.find_nodes_in_area(pos1, pos2, nodenames)`: returns a list of + positions. * `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"` * First return value: Table with all node positions - * Second return value: Table with the count of each node with the node name as index + * Second return value: Table with the count of each node with the node name + as index. * Area volume is limited to 4,096,000 nodes -* `minetest.find_nodes_in_area_under_air(pos1, pos2, nodenames)`: returns a list of positions +* `minetest.find_nodes_in_area_under_air(pos1, pos2, nodenames)`: returns a + list of positions. * `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"` * Return value: Table with all node positions with a node air above * Area volume is limited to 4,096,000 nodes @@ -2991,7 +3001,8 @@ handler. * `minetest.get_mapgen_setting(name)` * Gets the *active* mapgen setting (or nil if none exists) in string format with the following order of precedence: - 1) Settings loaded from map_meta.txt or overrides set during mod execution + 1) Settings loaded from map_meta.txt or overrides set during mod + execution. 2) Settings set by mods without a metafile override 3) Settings explicitly set in the user config file, minetest.conf 4) Settings set as the user config default @@ -3026,25 +3037,31 @@ handler. * `minetest.clear_objects([options])` * Clear all objects in the environment * Takes an optional table as an argument with the field `mode`. - * mode = `"full"`: Load and go through every mapblock, clearing objects (default). - * mode = `"quick"`: Clear objects immediately in loaded mapblocks; - clear objects in unloaded mapblocks only when the mapblocks are next activated. + * mode = `"full"` : Load and go through every mapblock, clearing + objects (default). + * mode = `"quick"`: Clear objects immediately in loaded mapblocks, + clear objects in unloaded mapblocks only when the + mapblocks are next activated. * `minetest.emerge_area(pos1, pos2, [callback], [param])` - * Queue all blocks in the area from `pos1` to `pos2`, inclusive, to be asynchronously - fetched from memory, loaded from disk, or if inexistent, generates them. - * If `callback` is a valid Lua function, this will be called for each block emerged. + * Queue all blocks in the area from `pos1` to `pos2`, inclusive, to be + asynchronously fetched from memory, loaded from disk, or if inexistent, + generates them. + * If `callback` is a valid Lua function, this will be called for each block + emerged. * The function signature of callback is: * `function EmergeAreaCallback(blockpos, action, calls_remaining, param)` - * `blockpos` is the *block* coordinates of the block that had been emerged + * `blockpos` is the *block* coordinates of the block that had been + emerged. * `action` could be one of the following constant values: * `minetest.EMERGE_CANCELLED` * `minetest.EMERGE_ERRORED` * `minetest.EMERGE_FROM_MEMORY` * `minetest.EMERGE_FROM_DISK` * `minetest.EMERGE_GENERATED` - * `calls_remaining` is the number of callbacks to be expected after this one - * `param` is the user-defined parameter passed to emerge_area (or nil if the - parameter was absent) + * `calls_remaining` is the number of callbacks to be expected after + this one. + * `param` is the user-defined parameter passed to emerge_area (or + nil if the parameter was absent). * `minetest.delete_area(pos1, pos2)` * delete all mapblocks in the area from pos1 to pos2, inclusive * `minetest.line_of_sight(pos1, pos2)`: returns `boolean, pos` @@ -3061,10 +3078,12 @@ handler. * `liquids' : if false, liquid nodes won't be returned. Default is `false`. * `minetest.find_path(pos1,pos2,searchdistance,max_jump,max_drop,algorithm)` * returns table containing path - * returns a table of 3D points representing a path from `pos1` to `pos2` or `nil` + * returns a table of 3D points representing a path from `pos1` to `pos2` or + `nil`. * `pos1`: start position * `pos2`: end position - * `searchdistance`: number of blocks to search in each direction using a maximum metric + * `searchdistance`: number of blocks to search in each direction using a + maximum metric. * `max_jump`: maximum height difference to consider walkable * `max_drop`: maximum height difference to consider droppable * `algorithm`: One of `"A*_noprefetch"` (default), `"A*"`, `"Dijkstra"` @@ -3109,22 +3128,23 @@ handler. * spread these updates to neighbours and can cause a cascade of nodes to fall. * `minetest.get_spawn_level(x, z)` - * Returns a player spawn y co-ordinate for the provided (x, z) co-ordinates, - or `nil` for an unsuitable spawn point. + * Returns a player spawn y co-ordinate for the provided (x, z) + co-ordinates, or `nil` for an unsuitable spawn point. * For most mapgens a 'suitable spawn point' is one with y between `water_level` and `water_level + 16`, and in mgv7 well away from rivers, so `nil` will be returned for many (x, z) co-ordinates. * The spawn level returned is for a player spawn in unmodified terrain. - * The spawn level is intentionally above terrain level to cope with full-node - biome 'dust' nodes. + * The spawn level is intentionally above terrain level to cope with + full-node biome 'dust' nodes. ### Mod channels You can find mod channels communication scheme in `docs/mod_channels.png`. * `minetest.mod_channel_join(channel_name)` * Server joins channel `channel_name`, and creates it if necessary. You - should listen from incoming messages with `minetest.register_on_modchannel_message` - call to receive incoming messages + should listen from incoming messages with + `minetest.register_on_modchannel_message` call to receive incoming + messages. ### Inventory `minetest.get_inventory(location)`: returns an `InvRef` @@ -3133,14 +3153,17 @@ You can find mod channels communication scheme in `docs/mod_channels.png`. * `{type="player", name="celeron55"}` * `{type="node", pos={x=, y=, z=}}` * `{type="detached", name="creative"}` -* `minetest.create_detached_inventory(name, callbacks, [player_name])`: returns an `InvRef` +* `minetest.create_detached_inventory(name, callbacks, [player_name])`: returns + an `InvRef`. * callbacks: See "Detached inventory callbacks" - * `player_name`: Make detached inventory available to one player exclusively, - by default they will be sent to every player (even if not used). - Note that this parameter is mostly just a workaround and will be removed in future releases. + * `player_name`: Make detached inventory available to one player + exclusively, by default they will be sent to every player (even if not + used). + Note that this parameter is mostly just a workaround and will be removed + in future releases. * Creates a detached inventory. If it already exists, it is cleared. * `minetest.do_item_eat(hp_change, replace_with_item, itemstack, user, pointed_thing)`: - returns left over ItemStack + returns left over ItemStack. * See `minetest.item_eat` and `minetest.register_on_item_eat` ### Formspec @@ -3151,13 +3174,16 @@ You can find mod channels communication scheme in `docs/mod_channels.png`. * `formspec`: formspec to display * `minetest.close_formspec(playername, formname)` * `playername`: name of player to close formspec - * `formname`: has to exactly match the one given in `show_formspec`, or the formspec will - not close. - * calling `show_formspec(playername, formname, "")` is equal to this expression + * `formname`: has to exactly match the one given in `show_formspec`, or the + formspec will not close. + * calling `show_formspec(playername, formname, "")` is equal to this + expression. * to close a formspec regardless of the formname, call - `minetest.close_formspec(playername, "")`. **USE THIS ONLY WHEN ABSOLUTELY NECESSARY!** + `minetest.close_formspec(playername, "")`. + **USE THIS ONLY WHEN ABSOLUTELY NECESSARY!** * `minetest.formspec_escape(string)`: returns a string - * escapes the characters "[", "]", "\", "," and ";", which can not be used in formspecs + * escapes the characters "[", "]", "\", "," and ";", which can not be used + in formspecs. * `minetest.explode_table_event(string)`: returns a table * returns e.g. `{type="CHG", row=1, column=2}` * `type` is one of: @@ -3183,26 +3209,31 @@ You can find mod channels communication scheme in `docs/mod_channels.png`. * `minetest.get_pointed_thing_position(pointed_thing, above)` * Get position of a `pointed_thing` (that you can get from somewhere) * `minetest.dir_to_facedir(dir, is6d)` - * Convert a vector to a facedir value, used in `param2` for `paramtype2="facedir"`; - * passing something non-`nil`/`false` for the optional second parameter causes it to - take the y component into account + * Convert a vector to a facedir value, used in `param2` for + `paramtype2="facedir"`. + * passing something non-`nil`/`false` for the optional second parameter + causes it to take the y component into account. * `minetest.facedir_to_dir(facedir)` - * Convert a facedir back into a vector aimed directly out the "back" of a node + * Convert a facedir back into a vector aimed directly out the "back" of a + node. * `minetest.dir_to_wallmounted(dir)` - * Convert a vector to a wallmounted value, used for `paramtype2="wallmounted"` + * Convert a vector to a wallmounted value, used for + `paramtype2="wallmounted"`. * `minetest.wallmounted_to_dir(wallmounted)` - * Convert a wallmounted value back into a vector aimed directly out the "back" of a node + * Convert a wallmounted value back into a vector aimed directly out the + "back" of a node. * `minetest.dir_to_yaw(dir)` * Convert a vector into a yaw (angle) * `minetest.yaw_to_dir(yaw)` * Convert yaw (angle) to a vector * `minetest.is_colored_paramtype(ptype)` - * Returns a boolean. Returns `true` if the given `paramtype2` contains color - information (`color`, `colorwallmounted` or `colorfacedir`). + * Returns a boolean. Returns `true` if the given `paramtype2` contains + color information (`color`, `colorwallmounted` or `colorfacedir`). * `minetest.strip_param2_color(param2, paramtype2)` * Removes everything but the color information from the given `param2` value. - * Returns `nil` if the given `paramtype2` does not contain color information + * Returns `nil` if the given `paramtype2` does not contain color + information. * `minetest.get_node_drops(nodename, toolname)` * Returns list of item names. * **Note**: This will be removed or modified in a future version. @@ -3210,7 +3241,7 @@ You can find mod channels communication scheme in `docs/mod_channels.png`. * `input.method` = `"normal"` or `"cooking"` or `"fuel"` * `input.width` = for example `3` * `input.items` = for example - `{ stack1, stack2, stack3, stack4, stack 5, stack 6, stack 7, stack 8, stack 9 }` + `{stack1, stack2, stack3, stack4, stack 5, stack 6, stack 7, stack 8, stack 9}` * `output.item` = `ItemStack`, if unsuccessful: empty `ItemStack` * `output.time` = a number, if unsuccessful: `0` * `output.replacements` = list of `ItemStack`s that couldn't be placed in @@ -3222,34 +3253,35 @@ You can find mod channels communication scheme in `docs/mod_channels.png`. * `input.method` = `"normal"` or `"cooking"` or `"fuel"` * `input.width` = for example `3` * `input.items` = for example - `{ stack1, stack2, stack3, stack4, stack 5, stack 6, stack 7, stack 8, stack 9 }` + `{stack1, stack2, stack3, stack4, stack 5, stack 6, stack 7, stack 8, stack 9}` * `input.items` = `nil` if no recipe found * `minetest.get_all_craft_recipes(query item)`: returns a table or `nil` * returns indexed table with all registered recipes for query item (node) - or `nil` if no recipe was found + or `nil` if no recipe was found. * recipe entry table: - { - method = 'normal' or 'cooking' or 'fuel' - width = 0-3, 0 means shapeless recipe - items = indexed [1-9] table with recipe items - output = string with item name and quantity - } + { + method = 'normal' or 'cooking' or 'fuel' + width = 0-3, 0 means shapeless recipe + items = indexed [1-9] table with recipe items + output = string with item name and quantity + } * Example query for `"default:gold_ingot"` will return table: - { - [1]={method = "cooking", width = 3, output = "default:gold_ingot", - items = {1 = "default:gold_lump"}}, - [2]={method = "normal", width = 1, output = "default:gold_ingot 9", - items = {1 = "default:goldblock"}} - } + { + [1]={method = "cooking", width = 3, output = "default:gold_ingot", + items = {1 = "default:gold_lump"}}, + [2]={method = "normal", width = 1, output = "default:gold_ingot 9", + items = {1 = "default:goldblock"}} + } * `minetest.handle_node_drops(pos, drops, digger)` * `drops`: list of itemstrings - * Handles drops from nodes after digging: Default action is to put them into - digger's inventory + * Handles drops from nodes after digging: Default action is to put them + into digger's inventory. * Can be overridden to get different functionality (e.g. dropping items on ground) -* `minetest.itemstring_with_palette(item, palette_index)`: returns an item string +* `minetest.itemstring_with_palette(item, palette_index)`: returns an item + string. * Creates an item string which contains palette index information for hardware colorization. You can use the returned string as an output in a craft recipe. @@ -3270,7 +3302,8 @@ You can find mod channels communication scheme in `docs/mod_channels.png`. returns `{{actor, pos, time, oldnode, newnode}, ...}` * Find who has done something to a node, or near a node * `actor`: `"player:<name>"`, also `"liquid"`. -* `minetest.rollback_revert_actions_by(actor, seconds)`: returns `boolean, log_messages` +* `minetest.rollback_revert_actions_by(actor, seconds)`: returns + `boolean, log_messages`. * Revert latest actions of someone * `actor`: `"player:<name>"`, also `"liquid"`. @@ -3313,7 +3346,8 @@ These functions return the leftover itemstack. * `minetest.sound_fade(handle, step, gain)` * `handle` is a handle returned by `minetest.sound_play` * `step` determines how fast a sound will fade. - Negative step will lower the sound volume, positive step will increase the sound volume + Negative step will lower the sound volume, positive step will increase + the sound volume. * `gain` the target gain for the fade. ### Timing @@ -3322,7 +3356,8 @@ These functions return the leftover itemstack. * Optional: Variable number of arguments that are passed to `func` ### Server -* `minetest.request_shutdown([message],[reconnect],[delay])`: request for server shutdown. Will display `message` to clients. +* `minetest.request_shutdown([message],[reconnect],[delay])`: request for + server shutdown. Will display `message` to clients. * `reconnect` == true displays a reconnect button * `delay` adds an optional delay (in seconds) before shutdown. Negative delay cancels the current active shutdown. @@ -3330,27 +3365,32 @@ These functions return the leftover itemstack. * `minetest.cancel_shutdown_requests()`: cancel current delayed shutdown * `minetest.get_server_status()`: returns server status string * `minetest.get_server_uptime()`: returns the server uptime in seconds -* `minetest.remove_player(name)`: remove player from database (if he is not connected). - * As auth data is not removed, minetest.player_exists will continue to return true. - Call the below method as well if you want to remove auth data too. +* `minetest.remove_player(name)`: remove player from database (if they are not + connected). + * As auth data is not removed, minetest.player_exists will continue to + return true. Call the below method as well if you want to remove auth + data too. * Returns a code (0: successful, 1: no such player, 2: player is connected) * `minetest.remove_player_auth(name)`: remove player authentication data * Returns boolean indicating success (false if player nonexistant) ### Bans -* `minetest.get_ban_list()`: returns the ban list (same as `minetest.get_ban_description("")`) +* `minetest.get_ban_list()`: returns the ban list + (same as `minetest.get_ban_description("")`). * `minetest.get_ban_description(ip_or_name)`: returns ban description (string) * `minetest.ban_player(name)`: ban a player * `minetest.unban_player_or_ip(name)`: unban player or IP address -* `minetest.kick_player(name, [reason])`: disconnect a player with a optional reason +* `minetest.kick_player(name, [reason])`: disconnect a player with a optional + reason. ### Particles * `minetest.add_particle(particle definition)` - * Deprecated: `minetest.add_particle(pos, velocity, acceleration, expirationtime, - size, collisiondetection, texture, playername)` + * Deprecated: `minetest.add_particle(pos, velocity, acceleration, + expirationtime, size, collisiondetection, texture, playername)` * `minetest.add_particlespawner(particlespawner definition)` - * Add a `ParticleSpawner`, an object that spawns an amount of particles over `time` seconds + * Add a `ParticleSpawner`, an object that spawns an amount of particles + over `time` seconds. * Returns an `id`, and -1 if adding didn't succeed * `Deprecated: minetest.add_particlespawner(amount, time, minpos, maxpos, @@ -3361,8 +3401,10 @@ These functions return the leftover itemstack. collisiondetection, texture, playername)` * `minetest.delete_particlespawner(id, player)` - * Delete `ParticleSpawner` with `id` (return value from `minetest.add_particlespawner`) - * If playername is specified, only deletes on the player's client, otherwise on all clients + * Delete `ParticleSpawner` with `id` (return value from + `minetest.add_particlespawner`). + * If playername is specified, only deletes on the player's client, + otherwise on all clients. ### Schematics * `minetest.create_schematic(p1, p2, probability_list, filename, slice_prob_list)` |