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Particles: Remove particles on collision. #3888

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merged 2 commits into from May 28, 2016
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@@ -3881,6 +3881,9 @@ Definition tables
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",
@@ -3910,6 +3913,9 @@ Definition tables
-- ^ 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",
@@ -182,6 +182,7 @@ struct ClientEvent
f32 expirationtime;
f32 size;
bool collisiondetection;
bool collision_removal;
bool vertical;
std::string *texture;
} spawn_particle;
@@ -199,6 +200,7 @@ struct ClientEvent
f32 minsize;
f32 maxsize;
bool collisiondetection;
bool collision_removal;
bool vertical;
std::string *texture;
u32 id;
@@ -898,8 +898,10 @@ void Client::handleCommand_SpawnParticle(NetworkPacket* pkt)
bool collisiondetection = readU8(is);
std::string texture = deSerializeLongString(is);
bool vertical = false;
bool collision_removal = false;
try {
vertical = readU8(is);
collision_removal = readU8(is);
} catch (...) {}

ClientEvent event;
@@ -910,6 +912,7 @@ void Client::handleCommand_SpawnParticle(NetworkPacket* pkt)
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);

@@ -942,8 +945,11 @@ void Client::handleCommand_AddParticleSpawner(NetworkPacket* pkt)
*pkt >> id;

bool vertical = false;
bool collision_removal = false;
try {
*pkt >> vertical;
*pkt >> collision_removal;

} catch (...) {}

ClientEvent event;
@@ -961,6 +967,7 @@ void Client::handleCommand_AddParticleSpawner(NetworkPacket* pkt)
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.vertical = vertical;
event.add_particlespawner.texture = new std::string(texture);
event.add_particlespawner.id = id;
@@ -474,6 +474,7 @@ enum ToClientCommand
u8 bool vertical
u32 len
u8[len] texture
u8 collision_removal
*/

TOCLIENT_ADD_PARTICLESPAWNER = 0x47,
@@ -495,6 +496,7 @@ enum ToClientCommand
u32 len
u8[len] texture
u32 id
u8 collision_removal
*/

TOCLIENT_DELETE_PARTICLESPAWNER_LEGACY = 0x48,
@@ -54,6 +54,7 @@ Particle::Particle(
float expirationtime,
float size,
bool collisiondetection,
bool collision_removal,
bool vertical,
video::ITexture *texture,
v2f texpos,
@@ -85,6 +86,7 @@ Particle::Particle(
m_player = player;
m_size = size;
m_collisiondetection = collisiondetection;
m_collision_removal = collision_removal;
m_vertical = vertical;

// Irrlicht stuff
@@ -126,20 +128,21 @@ void Particle::render()
void Particle::step(float dtime)
{
m_time += dtime;
if (m_collisiondetection)
{
if (m_collisiondetection) {
aabb3f box = m_collisionbox;
v3f p_pos = m_pos*BS;
v3f p_velocity = m_velocity*BS;
collisionMoveSimple(m_env, m_gamedef,
BS*0.5, box,
0, dtime,
&p_pos, &p_velocity, m_acceleration * BS);
m_pos = p_pos/BS;
m_velocity = p_velocity/BS;
}
else
{
v3f p_pos = m_pos * BS;
v3f p_velocity = m_velocity * BS;
collisionMoveResult r = collisionMoveSimple(m_env,
m_gamedef, BS * 0.5, box, 0, dtime, &p_pos,
&p_velocity, m_acceleration * BS);
if (m_collision_removal && r.collides) {
// force expiration of the particle
m_expiration = -1.0;
} else {
m_pos = p_pos / BS;
m_velocity = p_velocity / BS;
}
} else {
m_velocity += m_acceleration * dtime;
m_pos += m_velocity * dtime;
}
@@ -210,8 +213,8 @@ ParticleSpawner::ParticleSpawner(IGameDef* gamedef, scene::ISceneManager *smgr,
u16 amount, float time,
v3f minpos, v3f maxpos, v3f minvel, v3f maxvel, v3f minacc, v3f maxacc,
float minexptime, float maxexptime, float minsize, float maxsize,
bool collisiondetection, bool vertical, video::ITexture *texture, u32 id,
ParticleManager *p_manager) :
bool collisiondetection, bool collision_removal, bool vertical,
video::ITexture *texture, u32 id, ParticleManager *p_manager) :
m_particlemanager(p_manager)
{
m_gamedef = gamedef;
@@ -230,6 +233,7 @@ ParticleSpawner::ParticleSpawner(IGameDef* gamedef, scene::ISceneManager *smgr,
m_minsize = minsize;
m_maxsize = maxsize;
m_collisiondetection = collisiondetection;
m_collision_removal = collision_removal;
m_vertical = vertical;
m_texture = texture;
m_time = 0;
@@ -277,6 +281,7 @@ void ParticleSpawner::step(float dtime, ClientEnvironment* env)
exptime,
size,
m_collisiondetection,
m_collision_removal,
m_vertical,
m_texture,
v2f(0.0, 0.0),
@@ -317,6 +322,7 @@ void ParticleSpawner::step(float dtime, ClientEnvironment* env)
exptime,
size,
m_collisiondetection,
m_collision_removal,
m_vertical,
m_texture,
v2f(0.0, 0.0),
@@ -446,6 +452,7 @@ void ParticleManager::handleParticleEvent(ClientEvent *event, IGameDef *gamedef,
event->add_particlespawner.minsize,
event->add_particlespawner.maxsize,
event->add_particlespawner.collisiondetection,
event->add_particlespawner.collision_removal,
event->add_particlespawner.vertical,
texture,
event->add_particlespawner.id,
@@ -480,6 +487,7 @@ void ParticleManager::handleParticleEvent(ClientEvent *event, IGameDef *gamedef,
event->spawn_particle.expirationtime,
event->spawn_particle.size,
event->spawn_particle.collisiondetection,
event->spawn_particle.collision_removal,
event->spawn_particle.vertical,
texture,
v2f(0.0, 0.0),
@@ -555,6 +563,7 @@ void ParticleManager::addNodeParticle(IGameDef* gamedef, scene::ISceneManager* s
visual_size,
true,
false,
false,
texture,
texpos,
texsize);
@@ -30,6 +30,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,

struct ClientEvent;
class ParticleManager;
class ClientEnvironment;

class Particle : public scene::ISceneNode
{
@@ -45,6 +46,7 @@ class Particle : public scene::ISceneNode
float expirationtime,
float size,
bool collisiondetection,
bool collision_removal,
bool vertical,
video::ITexture *texture,
v2f texpos,
@@ -97,6 +99,7 @@ class Particle : public scene::ISceneNode
float m_size;
u8 m_light;
bool m_collisiondetection;
bool m_collision_removal;
bool m_vertical;
v3s16 m_camera_offset;
};
@@ -115,6 +118,7 @@ class ParticleSpawner
float minexptime, float maxexptime,
float minsize, float maxsize,
bool collisiondetection,
bool collision_removal,
bool vertical,
video::ITexture *texture,
u32 id,
@@ -148,6 +152,7 @@ class ParticleSpawner
video::ITexture *m_texture;
std::vector<float> m_spawntimes;
bool m_collisiondetection;
bool m_collision_removal;
bool m_vertical;

};
@@ -21,13 +21,16 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "lua_api/l_internal.h"
#include "common/c_converter.h"
#include "server.h"
#include "particles.h"

// add_particle({pos=, velocity=, acceleration=, expirationtime=,
// size=, collisiondetection=, vertical=, texture=, player=})
// size=, collisiondetection=, collision_removal=, vertical=,
// texture=, player=})
// pos/velocity/acceleration = {x=num, y=num, z=num}
// expirationtime = num (seconds)
// size = num
// collisiondetection = bool
// collision_removal = bool
// vertical = bool
// texture = e.g."default_wood.png"
int ModApiParticles::l_add_particle(lua_State *L)
@@ -41,8 +44,8 @@ int ModApiParticles::l_add_particle(lua_State *L)
float expirationtime, size;
expirationtime = size = 1;

bool collisiondetection, vertical;
collisiondetection = vertical = false;
bool collisiondetection, vertical, collision_removal;
collisiondetection = vertical = collision_removal = false;

std::string texture = "";
std::string playername = "";
@@ -94,12 +97,14 @@ int ModApiParticles::l_add_particle(lua_State *L)
size = getfloatfield_default(L, 1, "size", 1);
collisiondetection = getboolfield_default(L, 1,
"collisiondetection", collisiondetection);
collision_removal = getboolfield_default(L, 1,
"collision_removal", collision_removal);
vertical = getboolfield_default(L, 1, "vertical", vertical);
texture = getstringfield_default(L, 1, "texture", "");
playername = getstringfield_default(L, 1, "playername", "");
}
getServer(L)->spawnParticle(playername, pos, vel, acc,
expirationtime, size, collisiondetection, vertical, texture);
getServer(L)->spawnParticle(playername, pos, vel, acc, expirationtime, size,
collisiondetection, collision_removal, vertical, texture);
return 1;
}

@@ -110,13 +115,15 @@ int ModApiParticles::l_add_particle(lua_State *L)
// minexptime=, maxexptime=,
// minsize=, maxsize=,
// collisiondetection=,
// collision_removal=,
// vertical=,
// texture=,
// player=})
// minpos/maxpos/minvel/maxvel/minacc/maxacc = {x=num, y=num, z=num}
// minexptime/maxexptime = num (seconds)
// minsize/maxsize = num
// collisiondetection = bool
// collision_removal = bool
// vertical = bool
// texture = e.g."default_wood.png"
int ModApiParticles::l_add_particlespawner(lua_State *L)
@@ -129,8 +136,8 @@ int ModApiParticles::l_add_particlespawner(lua_State *L)
minpos= maxpos= minvel= maxvel= minacc= maxacc= v3f(0, 0, 0);
float time, minexptime, maxexptime, minsize, maxsize;
time= minexptime= maxexptime= minsize= maxsize= 1;
bool collisiondetection, vertical;
collisiondetection= vertical= false;
bool collisiondetection, vertical, collision_removal;
collisiondetection = vertical = collision_removal = false;
std::string texture = "";
std::string playername = "";

@@ -189,6 +196,8 @@ int ModApiParticles::l_add_particlespawner(lua_State *L)
maxsize = getfloatfield_default(L, 1, "maxsize", maxsize);
collisiondetection = getboolfield_default(L, 1,
"collisiondetection", collisiondetection);
collision_removal = getboolfield_default(L, 1,
"collision_removal", collision_removal);
vertical = getboolfield_default(L, 1, "vertical", vertical);
texture = getstringfield_default(L, 1, "texture", "");
playername = getstringfield_default(L, 1, "playername", "");
@@ -201,6 +210,7 @@ int ModApiParticles::l_add_particlespawner(lua_State *L)
minexptime, maxexptime,
minsize, maxsize,
collisiondetection,
collision_removal,
vertical,
texture, playername);
lua_pushnumber(L, id);
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