should listen from incoming messages with `minetest.register_on_modchannel_message`
call to receive incoming messages. Warning, this function is asynchronous.
-### Particles
-* `minetest.add_particle(particle definition)`
-
-* `minetest.add_particlespawner(particlespawner definition)`
- * Add a `ParticleSpawner`, an object that spawns an amount of particles over `time` seconds
- * Returns an `id`, and -1 if adding didn't succeed
-
-* `minetest.delete_particlespawner(id)`
- * Delete `ParticleSpawner` with `id` (return value from `minetest.add_particlespawner`)
-
### Misc.
* `minetest.parse_json(string[, nullvalue])`: returns something
* Convert a string containing JSON data into the Lua equivalent
* `text`: Distance suffix. Can be blank.
* `number:` An integer containing the RGB value of the color used to draw the text.
* `world_pos`: World position of the waypoint.
-
-### Particle definition (`add_particle`)
-
- {
- pos = {x=0, y=0, z=0},
- velocity = {x=0, y=0, z=0},
- acceleration = {x=0, y=0, z=0},
- -- ^ Spawn particle at pos with velocity and acceleration
- expirationtime = 1,
- -- ^ Disappears after expirationtime seconds
- size = 1,
- collisiondetection = false,
- -- ^ collisiondetection: if true collides with physical objects
- collision_removal = false,
- -- ^ collision_removal: if true then particle is removed when it collides,
- -- ^ requires collisiondetection = true to have any effect
- vertical = false,
- -- ^ vertical: if true faces player using y axis only
- texture = "image.png",
- -- ^ Uses texture (string)
- animation = {Tile Animation definition},
- -- ^ optional, specifies how to animate the particle texture
- glow = 0
- -- ^ optional, specify particle self-luminescence in darkness
- }
-
-### `ParticleSpawner` definition (`add_particlespawner`)
-
- {
- amount = 1,
- time = 1,
- -- ^ If time is 0 has infinite lifespan and spawns the amount on a per-second base
- minpos = {x=0, y=0, z=0},
- maxpos = {x=0, y=0, z=0},
- minvel = {x=0, y=0, z=0},
- maxvel = {x=0, y=0, z=0},
- minacc = {x=0, y=0, z=0},
- maxacc = {x=0, y=0, z=0},
- minexptime = 1,
- maxexptime = 1,
- minsize = 1,
- maxsize = 1,
- -- ^ The particle's properties are random values in between the bounds:
- -- ^ minpos/maxpos, minvel/maxvel (velocity), minacc/maxacc (acceleration),
- -- ^ minsize/maxsize, minexptime/maxexptime (expirationtime)
- collisiondetection = false,
- -- ^ collisiondetection: if true uses collision detection
- collision_removal = false,
- -- ^ collision_removal: if true then particle is removed when it collides,
- -- ^ requires collisiondetection = true to have any effect
- vertical = false,
- -- ^ vertical: if true faces player using y axis only
- texture = "image.png",
- -- ^ Uses texture (string)
- }
+++ /dev/null
-/*
-Minetest
-Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
-Copyright (C) 2017 red-001 <red-001@outlook.ie>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "lua_api/l_particles_local.h"
-#include "common/c_content.h"
-#include "common/c_converter.h"
-#include "lua_api/l_internal.h"
-#include "lua_api/l_object.h"
-#include "client/particles.h"
-#include "client/client.h"
-#include "client/clientevent.h"
-
-int ModApiParticlesLocal::l_add_particle(lua_State *L)
-{
- luaL_checktype(L, 1, LUA_TTABLE);
-
- // Get parameters
- v3f pos, vel, acc;
- float expirationtime, size;
- bool collisiondetection, vertical, collision_removal;
-
- struct TileAnimationParams animation;
- animation.type = TAT_NONE;
-
- std::string texture;
-
- u8 glow;
-
- lua_getfield(L, 1, "pos");
- pos = lua_istable(L, -1) ? check_v3f(L, -1) : v3f(0, 0, 0);
- lua_pop(L, 1);
-
- lua_getfield(L, 1, "velocity");
- vel = lua_istable(L, -1) ? check_v3f(L, -1) : v3f(0, 0, 0);
- lua_pop(L, 1);
-
- lua_getfield(L, 1, "acceleration");
- acc = lua_istable(L, -1) ? check_v3f(L, -1) : v3f(0, 0, 0);
- lua_pop(L, 1);
-
- expirationtime = getfloatfield_default(L, 1, "expirationtime", 1);
- size = getfloatfield_default(L, 1, "size", 1);
- collisiondetection = getboolfield_default(L, 1, "collisiondetection", false);
- collision_removal = getboolfield_default(L, 1, "collision_removal", false);
- vertical = getboolfield_default(L, 1, "vertical", false);
-
- lua_getfield(L, 1, "animation");
- animation = read_animation_definition(L, -1);
- lua_pop(L, 1);
-
- texture = getstringfield_default(L, 1, "texture", "");
-
- glow = getintfield_default(L, 1, "glow", 0);
-
- ClientEvent *event = new ClientEvent();
- event->type = CE_SPAWN_PARTICLE;
- event->spawn_particle.pos = new v3f (pos);
- event->spawn_particle.vel = new v3f (vel);
- event->spawn_particle.acc = new v3f (acc);
- event->spawn_particle.expirationtime = expirationtime;
- event->spawn_particle.size = size;
- event->spawn_particle.collisiondetection = collisiondetection;
- event->spawn_particle.collision_removal = collision_removal;
- event->spawn_particle.vertical = vertical;
- event->spawn_particle.texture = new std::string(texture);
- event->spawn_particle.animation = animation;
- event->spawn_particle.glow = glow;
- getClient(L)->pushToEventQueue(event);
-
- return 0;
-}
-
-int ModApiParticlesLocal::l_add_particlespawner(lua_State *L)
-{
- luaL_checktype(L, 1, LUA_TTABLE);
- // Get parameters
- u16 amount;
- v3f minpos, maxpos, minvel, maxvel, minacc, maxacc;
- float time, minexptime, maxexptime, minsize, maxsize;
- bool collisiondetection, vertical, collision_removal;
-
- struct TileAnimationParams animation;
- animation.type = TAT_NONE;
- // TODO: Implement this when there is a way to get an objectref.
- // ServerActiveObject *attached = NULL;
- std::string texture;
- u8 glow;
-
- amount = getintfield_default(L, 1, "amount", 1);
- time = getfloatfield_default(L, 1, "time", 1);
-
- lua_getfield(L, 1, "minpos");
- minpos = lua_istable(L, -1) ? check_v3f(L, -1) : v3f(0, 0, 0);
- lua_pop(L, 1);
-
- lua_getfield(L, 1, "maxpos");
- maxpos = lua_istable(L, -1) ? check_v3f(L, -1) : v3f(0, 0, 0);
- lua_pop(L, 1);
-
- lua_getfield(L, 1, "minvel");
- minvel = lua_istable(L, -1) ? check_v3f(L, -1) : v3f(0, 0, 0);
- lua_pop(L, 1);
-
- lua_getfield(L, 1, "maxvel");
- maxvel = lua_istable(L, -1) ? check_v3f(L, -1) : v3f(0, 0, 0);
- lua_pop(L, 1);
-
- lua_getfield(L, 1, "minacc");
- minacc = lua_istable(L, -1) ? check_v3f(L, -1) : v3f(0, 0, 0);
- lua_pop(L, 1);
-
- lua_getfield(L, 1, "maxacc");
- maxacc = lua_istable(L, -1) ? check_v3f(L, -1) : v3f(0, 0, 0);
- lua_pop(L, 1);
-
- minexptime = getfloatfield_default(L, 1, "minexptime", 1);
- maxexptime = getfloatfield_default(L, 1, "maxexptime", 1);
- minsize = getfloatfield_default(L, 1, "minsize", 1);
- maxsize = getfloatfield_default(L, 1, "maxsize", 1);
-
- collisiondetection = getboolfield_default(L, 1, "collisiondetection", false);
- collision_removal = getboolfield_default(L, 1, "collision_removal", false);
- vertical = getboolfield_default(L, 1, "vertical", false);
-
- lua_getfield(L, 1, "animation");
- animation = read_animation_definition(L, -1);
- lua_pop(L, 1);
-
- // TODO: Implement this when a way to get an objectref on the client is added
-// lua_getfield(L, 1, "attached");
-// if (!lua_isnil(L, -1)) {
-// ObjectRef *ref = ObjectRef::checkobject(L, -1);
-// lua_pop(L, 1);
-// attached = ObjectRef::getobject(ref);
-// }
-
- texture = getstringfield_default(L, 1, "texture", "");
- glow = getintfield_default(L, 1, "glow", 0);
-
- u32 id = getClient(L)->getParticleManager()->getSpawnerId();
-
- ClientEvent *event = new ClientEvent();
- event->type = CE_ADD_PARTICLESPAWNER;
- event->add_particlespawner.amount = amount;
- event->add_particlespawner.spawntime = time;
- event->add_particlespawner.minpos = new v3f (minpos);
- event->add_particlespawner.maxpos = new v3f (maxpos);
- event->add_particlespawner.minvel = new v3f (minvel);
- event->add_particlespawner.maxvel = new v3f (maxvel);
- event->add_particlespawner.minacc = new v3f (minacc);
- event->add_particlespawner.maxacc = new v3f (maxacc);
- event->add_particlespawner.minexptime = minexptime;
- event->add_particlespawner.maxexptime = maxexptime;
- event->add_particlespawner.minsize = minsize;
- event->add_particlespawner.maxsize = maxsize;
- event->add_particlespawner.collisiondetection = collisiondetection;
- event->add_particlespawner.collision_removal = collision_removal;
- event->add_particlespawner.attached_id = 0;
- event->add_particlespawner.vertical = vertical;
- event->add_particlespawner.texture = new std::string(texture);
- event->add_particlespawner.id = id;
- event->add_particlespawner.animation = animation;
- event->add_particlespawner.glow = glow;
-
- getClient(L)->pushToEventQueue(event);
- lua_pushnumber(L, id);
-
- return 1;
-}
-
-int ModApiParticlesLocal::l_delete_particlespawner(lua_State *L)
-{
- // Get parameters
- u32 id = luaL_checknumber(L, 1);
-
- ClientEvent *event = new ClientEvent();
- event->type = CE_DELETE_PARTICLESPAWNER;
- event->delete_particlespawner.id = id;
-
- getClient(L)->pushToEventQueue(event);
- return 0;
-}
-
-void ModApiParticlesLocal::Initialize(lua_State *L, int top)
-{
- API_FCT(add_particle);
- API_FCT(add_particlespawner);
- API_FCT(delete_particlespawner);
-}
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