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godot/scene/2d/particles_2d.cpp

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/*************************************************************************/
/* particles_2d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2015 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "particles_2d.h"
void ParticleAttractor2D::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_ENTER_TREE: {
_update_owner();
} break;
case NOTIFICATION_DRAW: {
if (!get_tree()->is_editor_hint())
return;
Vector2 pv;
float dr = MIN(disable_radius,radius);
for(int i=0;i<=32;i++) {
Vector2 v(Math::sin(i/32.0*Math_PI*2),Math::cos(i/32.0*Math_PI*2));
if (i>0) {
draw_line(pv*radius,v*radius,Color(0,0,0.5,0.9));
if (dr>0) {
draw_line(pv*dr,v*dr,Color(0.5,0,0.0,0.9));
}
}
pv=v;
}
} break;
case NOTIFICATION_EXIT_TREE: {
if (owner) {
_set_owner(NULL);
}
} break;
}
}
void ParticleAttractor2D::_owner_exited() {
ERR_FAIL_COND(!owner);
owner->attractors.erase(this);
owner=NULL;
}
void ParticleAttractor2D::_update_owner() {
if (!is_inside_tree() || !has_node(path)) {
_set_owner(NULL);
return;
}
Node *n = get_node(path);
ERR_FAIL_COND(!n);
Particles2D *pn = n->cast_to<Particles2D>();
if (!pn) {
_set_owner(NULL);
return;
}
_set_owner(pn);
}
void ParticleAttractor2D::_set_owner(Particles2D* p_owner) {
if (owner==p_owner)
return;
if (owner) {
owner->disconnect("exit_tree",this,"_owner_exited");
owner->attractors.erase(this);
owner=NULL;
}
owner=p_owner;
if (owner) {
owner->connect("exit_tree",this,"_owner_exited",varray(),CONNECT_ONESHOT);
owner->attractors.insert(this);
}
}
void ParticleAttractor2D::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_enabled","enabled"),&ParticleAttractor2D::set_enabled);
ObjectTypeDB::bind_method(_MD("is_enabled"),&ParticleAttractor2D::is_enabled);
ObjectTypeDB::bind_method(_MD("set_radius","radius"),&ParticleAttractor2D::set_radius);
ObjectTypeDB::bind_method(_MD("get_radius"),&ParticleAttractor2D::get_radius);
ObjectTypeDB::bind_method(_MD("set_disable_radius","radius"),&ParticleAttractor2D::set_disable_radius);
ObjectTypeDB::bind_method(_MD("get_disable_radius"),&ParticleAttractor2D::get_disable_radius);
ObjectTypeDB::bind_method(_MD("set_gravity","gravity"),&ParticleAttractor2D::set_gravity);
ObjectTypeDB::bind_method(_MD("get_gravity"),&ParticleAttractor2D::get_gravity);
ObjectTypeDB::bind_method(_MD("set_absorption","absorption"),&ParticleAttractor2D::set_absorption);
ObjectTypeDB::bind_method(_MD("get_absorption"),&ParticleAttractor2D::get_absorption);
ObjectTypeDB::bind_method(_MD("set_particles_path","path"),&ParticleAttractor2D::set_particles_path);
ObjectTypeDB::bind_method(_MD("get_particles_path"),&ParticleAttractor2D::get_particles_path);
ADD_PROPERTY(PropertyInfo(Variant::BOOL,"enabled"),_SCS("set_enabled"),_SCS("is_enabled"));
ADD_PROPERTY(PropertyInfo(Variant::REAL,"radius",PROPERTY_HINT_RANGE,"0.1,16000,0.1"),_SCS("set_radius"),_SCS("get_radius"));
ADD_PROPERTY(PropertyInfo(Variant::REAL,"disable_radius",PROPERTY_HINT_RANGE,"0.1,16000,0.1"),_SCS("set_disable_radius"),_SCS("get_disable_radius"));
ADD_PROPERTY(PropertyInfo(Variant::REAL,"gravity",PROPERTY_HINT_RANGE,"-512,512,0.01"),_SCS("set_gravity"),_SCS("get_gravity"));
ADD_PROPERTY(PropertyInfo(Variant::REAL,"absorption",PROPERTY_HINT_RANGE,"0,512,0.01"),_SCS("set_absorption"),_SCS("get_absorption"));
ADD_PROPERTY(PropertyInfo(Variant::NODE_PATH,"particles_path",PROPERTY_HINT_RESOURCE_TYPE,"Particles2D"),_SCS("set_particles_path"),_SCS("get_particles_path"));
}
void ParticleAttractor2D::set_enabled(bool p_enabled) {
enabled=p_enabled;
}
bool ParticleAttractor2D::is_enabled() const{
return enabled;
}
void ParticleAttractor2D::set_radius(float p_radius) {
radius = p_radius;
update();
}
float ParticleAttractor2D::get_radius() const {
return radius;
}
void ParticleAttractor2D::set_disable_radius(float p_disable_radius) {
disable_radius = p_disable_radius;
update();
}
float ParticleAttractor2D::get_disable_radius() const {
return disable_radius;
}
void ParticleAttractor2D::set_gravity(float p_gravity) {
gravity=p_gravity;
}
float ParticleAttractor2D::get_gravity() const {
return gravity;
}
void ParticleAttractor2D::set_absorption(float p_absorption) {
absorption=p_absorption;
}
float ParticleAttractor2D::get_absorption() const {
return absorption;
}
void ParticleAttractor2D::set_particles_path(NodePath p_path) {
path=p_path;
_update_owner();
}
NodePath ParticleAttractor2D::get_particles_path() const {
return path;
}
ParticleAttractor2D::ParticleAttractor2D() {
owner=NULL;
radius=50;
disable_radius=0;
gravity=100;
absorption=0;
path=String("..");
enabled=true;
}
/****************************************/
_FORCE_INLINE_ static float _rand_from_seed(uint32_t *seed) {
uint32_t k;
uint32_t s = (*seed);
if (s == 0)
s = 0x12345987;
k = s / 127773;
s = 16807 * (s - k * 127773) - 2836 * k;
if (s < 0)
s += 2147483647;
(*seed) = s;
float v=((float)((*seed) & 0xFFFFF))/(float)0xFFFFF;
v=v*2.0-1.0;
return v;
}
void Particles2D::_process_particles(float p_delta) {
if (particles.size()==0 || lifetime==0)
return;
p_delta*=time_scale;
float frame_time=p_delta;
if (emit_timeout > 0) {
time_to_live -= frame_time;
if (time_to_live < 0) {
emitting = false;
_change_notify("config/emitting");
};
};
float next_time = time+frame_time;
if (next_time > lifetime)
next_time=Math::fmod(next_time,lifetime);
Particle *pdata=&particles[0];
int particle_count=particles.size();
Matrix32 xform;
if (!local_space)
xform=get_global_transform();
active_count=0;
DVector<Point2>::Read r;
int emission_point_count=0;
if (emission_points.size()) {
emission_point_count=emission_points.size();
r=emission_points.read();
}
int attractor_count=0;
AttractorCache *attractor_ptr=NULL;
if (attractors.size()) {
if (attractors.size()!=attractor_cache.size()) {
attractor_cache.resize(attractors.size());
}
int idx=0;
Matrix32 m;
if (local_space) {
m= get_global_transform().affine_inverse();
}
for (Set<ParticleAttractor2D*>::Element *E=attractors.front();E;E=E->next()) {
attractor_cache[idx].pos=m.xform( E->get()->get_global_pos() );
attractor_cache[idx].attractor=E->get();
idx++;
}
attractor_ptr=attractor_cache.ptr();
attractor_count=attractor_cache.size();
}
for(int i=0;i<particle_count;i++) {
Particle &p=pdata[i];
float restart_time = (i * lifetime / particle_count) * explosiveness;
bool restart=false;
if ( next_time < time ) {
if (restart_time > time || restart_time < next_time )
restart=true;
} else if (restart_time > time && restart_time < next_time ) {
restart=true;
}
if (restart) {
if (emitting) {
p.pos=emissor_offset;
if (emission_point_count) {
Vector2 ep = r[Math::rand()%emission_point_count];
if (!local_space) {
p.pos=xform.xform(p.pos+ep*extents);
} else {
p.pos+=ep*extents;
}
} else {
if (!local_space) {
p.pos=xform.xform(p.pos+Vector2(Math::random(-extents.x,extents.x),Math::random(-extents.y,extents.y)));
} else {
p.pos+=Vector2(Math::random(-extents.x,extents.x),Math::random(-extents.y,extents.y));
}
}
p.seed=Math::rand() % 12345678;
uint32_t rand_seed=p.seed*(i+1);
float angle = Math::deg2rad(param[PARAM_DIRECTION]+_rand_from_seed(&rand_seed)*param[PARAM_SPREAD]);
p.velocity=Vector2( Math::sin(angle), Math::cos(angle) );
if (!local_space) {
p.velocity = xform.basis_xform(p.velocity).normalized();
}
p.velocity*=param[PARAM_LINEAR_VELOCITY]+param[PARAM_LINEAR_VELOCITY]*_rand_from_seed(&rand_seed)*randomness[PARAM_LINEAR_VELOCITY];
p.velocity+=initial_velocity;
p.active=true;
p.rot=Math::deg2rad(param[PARAM_INITIAL_ANGLE]+param[PARAM_INITIAL_ANGLE]*randomness[PARAM_INITIAL_ANGLE]*_rand_from_seed(&rand_seed));
active_count++;
p.frame=Math::fmod(param[PARAM_ANIM_INITIAL_POS]+randomness[PARAM_ANIM_INITIAL_POS]*_rand_from_seed(&rand_seed),1.0);
} else {
p.active=false;
}
} else {
if (!p.active)
continue;
uint32_t rand_seed=p.seed*(i+1);
Vector2 force;
//apply gravity
float gravity_dir = Math::deg2rad( param[PARAM_GRAVITY_DIRECTION]+180*randomness[PARAM_GRAVITY_DIRECTION]*_rand_from_seed(&rand_seed));
force+=Vector2( Math::sin(gravity_dir), Math::cos(gravity_dir) ) * (param[PARAM_GRAVITY_STRENGTH]+param[PARAM_GRAVITY_STRENGTH]*randomness[PARAM_GRAVITY_STRENGTH]*_rand_from_seed(&rand_seed));
//apply radial
Vector2 rvec = (p.pos - emissor_offset).normalized();
force+=rvec*(param[PARAM_RADIAL_ACCEL]+param[PARAM_RADIAL_ACCEL]*randomness[PARAM_RADIAL_ACCEL]*_rand_from_seed(&rand_seed));
//apply orbit
float orbitvel = (param[PARAM_ORBIT_VELOCITY]+param[PARAM_ORBIT_VELOCITY]*randomness[PARAM_ORBIT_VELOCITY]*_rand_from_seed(&rand_seed));
if (orbitvel!=0) {
Vector2 rel = p.pos - xform.elements[2];
Matrix32 rot(orbitvel*frame_time,Vector2());
p.pos = rot.xform(rel) + xform.elements[2];
}
Vector2 tvec=rvec.tangent();
force+=tvec*(param[PARAM_TANGENTIAL_ACCEL]+param[PARAM_TANGENTIAL_ACCEL]*randomness[PARAM_TANGENTIAL_ACCEL]*_rand_from_seed(&rand_seed));
for(int j=0;j<attractor_count;j++) {
Vector2 vec = (attractor_ptr[j].pos - p.pos);
float vl = vec.length();
if (!attractor_ptr[j].attractor->enabled || vl==0 || vl > attractor_ptr[j].attractor->radius)
continue;
force+=vec*attractor_ptr[j].attractor->gravity;
float fvl = p.velocity.length();
if (fvl && attractor_ptr[j].attractor->absorption) {
Vector2 target = vec.normalized();
p.velocity = p.velocity.normalized().linear_interpolate(target,MIN(frame_time*attractor_ptr[j].attractor->absorption,1))*fvl;
}
if (attractor_ptr[j].attractor->disable_radius && vl < attractor_ptr[j].attractor->disable_radius) {
p.active=false;
}
}
p.velocity+=force*frame_time;
if (param[PARAM_DAMPING]) {
float dmp = param[PARAM_DAMPING]+param[PARAM_DAMPING]*randomness[PARAM_DAMPING]*_rand_from_seed(&rand_seed);
float v = p.velocity.length();
v -= dmp * frame_time;
if (v<=0) {
p.velocity=Vector2();
} else {
p.velocity=p.velocity.normalized() * v;
}
}
p.pos+=p.velocity*frame_time;
p.rot+=Math::lerp(param[PARAM_SPIN_VELOCITY],param[PARAM_SPIN_VELOCITY]*randomness[PARAM_SPIN_VELOCITY]*_rand_from_seed(&rand_seed),randomness[PARAM_SPIN_VELOCITY])*frame_time;
float anim_spd=param[PARAM_ANIM_SPEED_SCALE]+param[PARAM_ANIM_SPEED_SCALE]*randomness[PARAM_ANIM_SPEED_SCALE]*_rand_from_seed(&rand_seed);
p.frame=Math::fposmod(p.frame+(frame_time/lifetime)*anim_spd,1.0);
active_count++;
}
}
time=Math::fmod( time+frame_time, lifetime );
if (!emitting && active_count==0) {
set_process(false);
}
update();
}
void Particles2D::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_PROCESS: {
_process_particles( get_process_delta_time() );
} break;
case NOTIFICATION_ENTER_TREE: {
float ppt=preprocess;
while(ppt>0) {
_process_particles(0.1);
ppt-=0.1;
}
} break;
case NOTIFICATION_DRAW: {
if (particles.size()==0 || lifetime==0)
return;
RID ci=get_canvas_item();
Size2 size(1,1);
Point2 center;
int total_frames=1;
if (!texture.is_null()) {
size=texture->get_size();
size.x/=h_frames;
size.y/=v_frames;
total_frames=h_frames*v_frames;
}
float time_pos=(time/lifetime);
Particle *pdata=&particles[0];
int particle_count=particles.size();
RID texrid;
if (texture.is_valid())
texrid = texture->get_rid();
Matrix32 invxform;
if (!local_space)
invxform=get_global_transform().affine_inverse();
int start_particle = (int)(time * (float)particle_count / lifetime);
for (int id=0;id<particle_count;++id) {
int i = start_particle + id;
if (i >= particle_count) {
i -= particle_count;
}
Particle &p=pdata[i];
if (!p.active)
continue;
float ptime = ((float)i / particle_count)*explosiveness;
if (ptime<time_pos)
ptime=time_pos-ptime;
else
ptime=(1.0-ptime)+time_pos;
uint32_t rand_seed=p.seed*(i+1);
Color color;
if(color_ramp.is_valid())
{
color = color_ramp->get_color_at_offset(ptime);
} else
{
color = default_color;
}
{
float huerand=_rand_from_seed(&rand_seed);
float huerot = param[PARAM_HUE_VARIATION] + randomness[PARAM_HUE_VARIATION] * huerand;
if (Math::abs(huerot) > CMP_EPSILON) {
float h=color.get_h();
float s=color.get_s();
float v=color.get_v();
float a=color.a;
//float preh=h;
h+=huerot;
h=Math::abs(Math::fposmod(h,1.0));
//print_line("rand: "+rtos(randomness[PARAM_HUE_VARIATION])+" rand: "+rtos(huerand));
//print_line(itos(i)+":hue: "+rtos(preh)+" + "+rtos(huerot)+" = "+rtos(h));
color.set_hsv(h,s,v);
color.a=a;
}
}
float initial_size = param[PARAM_INITIAL_SIZE]+param[PARAM_INITIAL_SIZE]*_rand_from_seed(&rand_seed)*randomness[PARAM_FINAL_SIZE];
float final_size = param[PARAM_FINAL_SIZE]+param[PARAM_FINAL_SIZE]*_rand_from_seed(&rand_seed)*randomness[PARAM_FINAL_SIZE];
float size_mult=initial_size*(1.0-ptime) + final_size*ptime;
//Size2 rectsize=size * size_mult;
//rectsize=rectsize.floor();
//Rect2 r = Rect2(Vecto,rectsize);
Matrix32 xform;
if (p.rot) {
xform.set_rotation(p.rot);
xform.translate(-size*size_mult/2.0);
xform.elements[2]+=p.pos;
} else {
xform.elements[2]=-size*size_mult/2.0;
xform.elements[2]+=p.pos;
}
if (!local_space) {
xform = invxform * xform;
}
xform.scale_basis(Size2(size_mult,size_mult));
VisualServer::get_singleton()->canvas_item_add_set_transform(ci,xform);
if (texrid.is_valid()) {
Rect2 src_rect;
src_rect.size=size;
if (total_frames>1) {
int frame = Math::fast_ftoi(Math::floor(p.frame*total_frames)) % total_frames;
src_rect.pos.x = size.x * (frame%h_frames);
src_rect.pos.y = size.y * (frame/h_frames);
}
texture->draw_rect_region(ci,Rect2(Point2(),size),src_rect,color);
//VisualServer::get_singleton()->canvas_item_add_texture_rect(ci,r,texrid,false,color);
} else {
VisualServer::get_singleton()->canvas_item_add_rect(ci,Rect2(Point2(),size),color);
}
}
} break;
}
}
static const char* _particlesframe_property_names[Particles2D::PARAM_MAX]={
"params/direction",
"params/spread",
"params/linear_velocity",
"params/spin_velocity",
"params/orbit_velocity",
"params/gravity_direction",
"params/gravity_strength",
"params/radial_accel",
"params/tangential_accel",
"params/damping",
"params/initial_angle",
"params/initial_size",
"params/final_size",
"params/hue_variation",
"params/anim_speed_scale",
"params/anim_initial_pos",
};
static const char* _particlesframe_property_rnames[Particles2D::PARAM_MAX]={
"randomness/direction",
"randomness/spread",
"randomness/linear_velocity",
"randomness/spin_velocity",
"randomness/orbit_velocity",
"randomness/gravity_direction",
"randomness/gravity_strength",
"randomness/radial_accel",
"randomness/tangential_accel",
"randomness/damping",
"randomness/initial_angle",
"randomness/initial_size",
"randomness/final_size",
"randomness/hue_variation",
"randomness/anim_speed_scale",
"randomness/anim_initial_pos",
};
static const char* _particlesframe_property_ranges[Particles2D::PARAM_MAX]={
"0,360,0.01",
"0,180,0.01",
"-1024,1024,0.01",
"-1024,1024,0.01",
"-1024,1024,0.01",
"0,360,0.01",
"0,1024,0.01",
"-128,128,0.01",
"-128,128,0.01",
"0,1024,0.001",
"0,360,0.01",
"0,1024,0.01",
"0,1024,0.01",
"0,1,0.01",
"0,128,0.01",
"0,1,0.01",
};
void Particles2D::set_emitting(bool p_emitting) {
if (emitting==p_emitting)
return;
if (p_emitting) {
if (active_count==0)
time=0;
set_process(true);
time_to_live = emit_timeout;
};
emitting=p_emitting;
_change_notify("config/emitting");
}
bool Particles2D::is_emitting() const {
return emitting;
}
void Particles2D::set_amount(int p_amount) {
ERR_FAIL_INDEX(p_amount,1024);
particles.resize(p_amount);
}
int Particles2D::get_amount() const {
return particles.size();
}
void Particles2D::set_emit_timeout(float p_timeout) {
emit_timeout = p_timeout;
time_to_live = p_timeout;
};
float Particles2D::get_emit_timeout() const {
return emit_timeout;
};
void Particles2D::set_lifetime(float p_lifetime) {
ERR_FAIL_INDEX(p_lifetime,3600);
lifetime=p_lifetime;
}
float Particles2D::get_lifetime() const {
return lifetime;
}
void Particles2D::set_time_scale(float p_time_scale) {
time_scale=p_time_scale;
}
float Particles2D::get_time_scale() const {
return time_scale;
}
void Particles2D::set_pre_process_time(float p_pre_process_time) {
preprocess=p_pre_process_time;
}
float Particles2D::get_pre_process_time() const{
return preprocess;
}
void Particles2D::set_param(Parameter p_param, float p_value) {
ERR_FAIL_INDEX(p_param,PARAM_MAX);
param[p_param]=p_value;
}
float Particles2D::get_param(Parameter p_param) const {
ERR_FAIL_INDEX_V(p_param,PARAM_MAX,0);
return param[p_param];
}
void Particles2D::set_randomness(Parameter p_param, float p_value) {
ERR_FAIL_INDEX(p_param,PARAM_MAX);
randomness[p_param]=p_value;
}
float Particles2D::get_randomness(Parameter p_param) const {
ERR_FAIL_INDEX_V(p_param,PARAM_MAX,0);
return randomness[p_param];
}
void Particles2D::set_texture(const Ref<Texture>& p_texture) {
texture=p_texture;
}
Ref<Texture> Particles2D::get_texture() const {
return texture;
}
void Particles2D::set_color(const Color& p_color) {
default_color = p_color;
}
Color Particles2D::get_color() const {
return default_color;
}
void Particles2D::set_color_ramp(const Ref<ColorRamp>& p_color_ramp) {
color_ramp=p_color_ramp;
}
Ref<ColorRamp> Particles2D::get_color_ramp() const {
return color_ramp;
}
void Particles2D::set_emissor_offset(const Point2& p_offset) {
emissor_offset=p_offset;
}
Point2 Particles2D::get_emissor_offset() const {
return emissor_offset;
}
void Particles2D::set_use_local_space(bool p_use) {
local_space=p_use;
}
bool Particles2D::is_using_local_space() const {
return local_space;
}
//Deprecated. Converts color phases to color ramp
void Particles2D::set_color_phases(int p_phases) {
//Create color ramp if we have 2 or more phases.
//Otherwise first phase phase will be assigned to default color.
if(p_phases > 1 && color_ramp.is_null())
{
color_ramp = Ref<ColorRamp>(memnew (ColorRamp()));
}
if(color_ramp.is_valid())
{
color_ramp->get_points().resize(p_phases);
}
}
//Deprecated.
int Particles2D::get_color_phases() const {
if(color_ramp.is_valid())
{
return color_ramp->get_points_count();
}
return 0;
}
//Deprecated. Converts color phases to color ramp
void Particles2D::set_color_phase_color(int p_phase,const Color& p_color) {
ERR_FAIL_INDEX(p_phase,MAX_COLOR_PHASES);
if(color_ramp.is_valid())
{
if(color_ramp->get_points_count() > p_phase)
color_ramp->set_color(p_phase, p_color);
} else
{
if(p_phase == 0)
default_color = p_color;
}
}
//Deprecated.
Color Particles2D::get_color_phase_color(int p_phase) const {
ERR_FAIL_INDEX_V(p_phase,MAX_COLOR_PHASES,Color());
if(color_ramp.is_valid())
{
return color_ramp->get_color(p_phase);
}
return Color(0,0,0,1);
}
//Deprecated. Converts color phases to color ramp
void Particles2D::set_color_phase_pos(int p_phase,float p_pos) {
ERR_FAIL_INDEX(p_phase,MAX_COLOR_PHASES);
ERR_FAIL_COND(p_pos<0.0 || p_pos>1.0);
if(color_ramp.is_valid() && color_ramp->get_points_count() > p_phase)
{
return color_ramp->set_offset(p_phase, p_pos);
}
}
//Deprecated.
float Particles2D::get_color_phase_pos(int p_phase) const {
ERR_FAIL_INDEX_V(p_phase,MAX_COLOR_PHASES,0);
if(color_ramp.is_valid())
{
return color_ramp->get_offset(p_phase);
}
return 0;
}
void Particles2D::set_emission_half_extents(const Vector2& p_extents) {
extents=p_extents;
}
Vector2 Particles2D::get_emission_half_extents() const {
return extents;
}
void Particles2D::testee(int a, int b, int c, int d, int e) {
print_line(itos(a));
print_line(itos(b));
print_line(itos(c));
print_line(itos(d));
print_line(itos(e));
}
void Particles2D::set_initial_velocity(const Vector2& p_velocity) {
initial_velocity=p_velocity;
}
Vector2 Particles2D::get_initial_velocity() const{
return initial_velocity;
}
void Particles2D::pre_process(float p_delta) {
_process_particles(p_delta);
}
void Particles2D::set_explosiveness(float p_value) {
explosiveness=p_value;
}
float Particles2D::get_explosiveness() const{
return explosiveness;
}
void Particles2D::set_flip_h(bool p_flip) {
flip_h=p_flip;
}
bool Particles2D::is_flipped_h() const{
return flip_h;
}
void Particles2D::set_flip_v(bool p_flip){
flip_v=p_flip;
}
bool Particles2D::is_flipped_v() const{
return flip_v;
}
void Particles2D::set_h_frames(int p_frames) {
ERR_FAIL_COND(p_frames<1);
h_frames=p_frames;
}
int Particles2D::get_h_frames() const{
return h_frames;
}
void Particles2D::set_v_frames(int p_frames){
ERR_FAIL_COND(p_frames<1);
v_frames=p_frames;
}
int Particles2D::get_v_frames() const{
return v_frames;
}
void Particles2D::set_emission_points(const DVector<Vector2>& p_points) {
emission_points=p_points;
}
DVector<Vector2> Particles2D::get_emission_points() const{
return emission_points;
}
void Particles2D::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_emitting","active"),&Particles2D::set_emitting);
ObjectTypeDB::bind_method(_MD("is_emitting"),&Particles2D::is_emitting);
ObjectTypeDB::bind_method(_MD("set_amount","amount"),&Particles2D::set_amount);
ObjectTypeDB::bind_method(_MD("get_amount"),&Particles2D::get_amount);
ObjectTypeDB::bind_method(_MD("set_lifetime","lifetime"),&Particles2D::set_lifetime);
ObjectTypeDB::bind_method(_MD("get_lifetime"),&Particles2D::get_lifetime);
ObjectTypeDB::bind_method(_MD("set_time_scale","time_scale"),&Particles2D::set_time_scale);
ObjectTypeDB::bind_method(_MD("get_time_scale"),&Particles2D::get_time_scale);
ObjectTypeDB::bind_method(_MD("set_pre_process_time","time"),&Particles2D::set_pre_process_time);
ObjectTypeDB::bind_method(_MD("get_pre_process_time"),&Particles2D::get_pre_process_time);
ObjectTypeDB::bind_method(_MD("set_emit_timeout","value"),&Particles2D::set_emit_timeout);
ObjectTypeDB::bind_method(_MD("get_emit_timeout"),&Particles2D::get_emit_timeout);
ObjectTypeDB::bind_method(_MD("set_param","param","value"),&Particles2D::set_param);
ObjectTypeDB::bind_method(_MD("get_param","param"),&Particles2D::get_param);
ObjectTypeDB::bind_method(_MD("set_randomness","param","value"),&Particles2D::set_randomness);
ObjectTypeDB::bind_method(_MD("get_randomness","param"),&Particles2D::get_randomness);
ObjectTypeDB::bind_method(_MD("set_texture:Texture","texture"),&Particles2D::set_texture);
ObjectTypeDB::bind_method(_MD("get_texture:Texture"),&Particles2D::get_texture);
ObjectTypeDB::bind_method(_MD("set_color","color"),&Particles2D::set_color);
ObjectTypeDB::bind_method(_MD("get_color"),&Particles2D::get_color);
ObjectTypeDB::bind_method(_MD("set_color_ramp:ColorRamp","color_ramp"),&Particles2D::set_color_ramp);
ObjectTypeDB::bind_method(_MD("get_color_ramp:ColorRamp"),&Particles2D::get_color_ramp);
ObjectTypeDB::bind_method(_MD("set_emissor_offset","offset"),&Particles2D::set_emissor_offset);
ObjectTypeDB::bind_method(_MD("get_emissor_offset"),&Particles2D::get_emissor_offset);
ObjectTypeDB::bind_method(_MD("set_flip_h","enable"),&Particles2D::set_flip_h);
ObjectTypeDB::bind_method(_MD("is_flipped_h"),&Particles2D::is_flipped_h);
ObjectTypeDB::bind_method(_MD("set_flip_v","enable"),&Particles2D::set_flip_v);
ObjectTypeDB::bind_method(_MD("is_flipped_v"),&Particles2D::is_flipped_v);
ObjectTypeDB::bind_method(_MD("set_h_frames","enable"),&Particles2D::set_h_frames);
ObjectTypeDB::bind_method(_MD("get_h_frames"),&Particles2D::get_h_frames);
ObjectTypeDB::bind_method(_MD("set_v_frames","enable"),&Particles2D::set_v_frames);
ObjectTypeDB::bind_method(_MD("get_v_frames"),&Particles2D::get_v_frames);
ObjectTypeDB::bind_method(_MD("set_emission_half_extents","extents"),&Particles2D::set_emission_half_extents);
ObjectTypeDB::bind_method(_MD("get_emission_half_extents"),&Particles2D::get_emission_half_extents);
ObjectTypeDB::bind_method(_MD("set_color_phases","phases"),&Particles2D::set_color_phases);
ObjectTypeDB::bind_method(_MD("get_color_phases"),&Particles2D::get_color_phases);
ObjectTypeDB::bind_method(_MD("set_color_phase_color","phase","color"),&Particles2D::set_color_phase_color);
ObjectTypeDB::bind_method(_MD("get_color_phase_color","phase"),&Particles2D::get_color_phase_color);
ObjectTypeDB::bind_method(_MD("set_color_phase_pos","phase","pos"),&Particles2D::set_color_phase_pos);
ObjectTypeDB::bind_method(_MD("get_color_phase_pos","phase"),&Particles2D::get_color_phase_pos);
ObjectTypeDB::bind_method(_MD("pre_process","time"),&Particles2D::pre_process);
ObjectTypeDB::bind_method(_MD("set_use_local_space","enable"),&Particles2D::set_use_local_space);
ObjectTypeDB::bind_method(_MD("is_using_local_space"),&Particles2D::is_using_local_space);
ObjectTypeDB::bind_method(_MD("set_initial_velocity","velocity"),&Particles2D::set_initial_velocity);
ObjectTypeDB::bind_method(_MD("get_initial_velocity"),&Particles2D::get_initial_velocity);
ObjectTypeDB::bind_method(_MD("set_explosiveness","amount"),&Particles2D::set_explosiveness);
ObjectTypeDB::bind_method(_MD("get_explosiveness"),&Particles2D::get_explosiveness);
ObjectTypeDB::bind_method(_MD("set_emission_points","points"),&Particles2D::set_emission_points);
ObjectTypeDB::bind_method(_MD("get_emission_points"),&Particles2D::get_emission_points);
ADD_PROPERTY(PropertyInfo(Variant::INT,"config/amount",PROPERTY_HINT_EXP_RANGE,"1,1024"),_SCS("set_amount"),_SCS("get_amount") );
ADD_PROPERTY(PropertyInfo(Variant::REAL,"config/lifetime",PROPERTY_HINT_EXP_RANGE,"0.1,3600,0.1"),_SCS("set_lifetime"),_SCS("get_lifetime") );
ADD_PROPERTYNO(PropertyInfo(Variant::REAL,"config/time_scale",PROPERTY_HINT_EXP_RANGE,"0.01,128,0.01"),_SCS("set_time_scale"),_SCS("get_time_scale") );
ADD_PROPERTYNZ(PropertyInfo(Variant::REAL,"config/preprocess",PROPERTY_HINT_EXP_RANGE,"0.1,3600,0.1"),_SCS("set_pre_process_time"),_SCS("get_pre_process_time") );
ADD_PROPERTYNZ(PropertyInfo(Variant::REAL,"config/emit_timeout",PROPERTY_HINT_RANGE,"0,3600,0.1"),_SCS("set_emit_timeout"),_SCS("get_emit_timeout") );
ADD_PROPERTYNO(PropertyInfo(Variant::BOOL,"config/emitting"),_SCS("set_emitting"),_SCS("is_emitting") );
ADD_PROPERTYNZ(PropertyInfo(Variant::VECTOR2,"config/offset"),_SCS("set_emissor_offset"),_SCS("get_emissor_offset"));
ADD_PROPERTYNZ(PropertyInfo(Variant::VECTOR2,"config/half_extents"),_SCS("set_emission_half_extents"),_SCS("get_emission_half_extents"));
ADD_PROPERTYNO(PropertyInfo(Variant::BOOL,"config/local_space"),_SCS("set_use_local_space"),_SCS("is_using_local_space"));
ADD_PROPERTYNO(PropertyInfo(Variant::REAL,"config/explosiveness",PROPERTY_HINT_RANGE,"0,1,0.01"),_SCS("set_explosiveness"),_SCS("get_explosiveness"));
ADD_PROPERTYNZ(PropertyInfo(Variant::BOOL,"config/flip_h"),_SCS("set_flip_h"),_SCS("is_flipped_h"));
ADD_PROPERTYNZ(PropertyInfo(Variant::BOOL,"config/flip_v"),_SCS("set_flip_v"),_SCS("is_flipped_v"));
ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"config/texture",PROPERTY_HINT_RESOURCE_TYPE,"Texture"),_SCS("set_texture"),_SCS("get_texture"));
ADD_PROPERTYNO(PropertyInfo(Variant::INT,"config/h_frames",PROPERTY_HINT_RANGE,"1,512,1"),_SCS("set_h_frames"),_SCS("get_h_frames"));
ADD_PROPERTYNO(PropertyInfo(Variant::INT,"config/v_frames",PROPERTY_HINT_RANGE,"1,512,1"),_SCS("set_v_frames"),_SCS("get_v_frames"));
for(int i=0;i<PARAM_MAX;i++) {
ADD_PROPERTYI(PropertyInfo(Variant::REAL,_particlesframe_property_names[i],PROPERTY_HINT_RANGE,_particlesframe_property_ranges[i]),_SCS("set_param"),_SCS("get_param"),i);
}
for(int i=0;i<PARAM_MAX;i++) {
ADD_PROPERTYINZ(PropertyInfo(Variant::REAL,_particlesframe_property_rnames[i],PROPERTY_HINT_RANGE,"-1,1,0.01"),_SCS("set_randomness"),_SCS("get_randomness"),i);
}
ADD_PROPERTYNZ( PropertyInfo( Variant::INT, "color_phases/count",PROPERTY_HINT_RANGE,"0,4,1", 0), _SCS("set_color_phases"), _SCS("get_color_phases"));
//Backward compatibility. They will be converted to color ramp
for(int i=0;i<MAX_COLOR_PHASES;i++) {
String phase="phase_"+itos(i)+"/";
ADD_PROPERTYI( PropertyInfo( Variant::REAL, phase+"pos", PROPERTY_HINT_RANGE,"0,1,0.01", 0),_SCS("set_color_phase_pos"),_SCS("get_color_phase_pos"),i );
ADD_PROPERTYI( PropertyInfo( Variant::COLOR, phase+"color", PROPERTY_HINT_NONE, "", 0),_SCS("set_color_phase_color"),_SCS("get_color_phase_color"),i );
}
ADD_PROPERTYNO(PropertyInfo(Variant::COLOR, "color/color"),_SCS("set_color"),_SCS("get_color"));
ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"color/color_ramp",PROPERTY_HINT_RESOURCE_TYPE,"ColorRamp"),_SCS("set_color_ramp"),_SCS("get_color_ramp"));
ADD_PROPERTYNZ(PropertyInfo(Variant::VECTOR2_ARRAY,"emission_points",PROPERTY_HINT_NONE,"",PROPERTY_USAGE_NOEDITOR),_SCS("set_emission_points"),_SCS("get_emission_points"));
BIND_CONSTANT( PARAM_DIRECTION );
BIND_CONSTANT( PARAM_SPREAD );
BIND_CONSTANT( PARAM_LINEAR_VELOCITY );
BIND_CONSTANT( PARAM_SPIN_VELOCITY );
BIND_CONSTANT( PARAM_ORBIT_VELOCITY );
BIND_CONSTANT( PARAM_GRAVITY_DIRECTION );
BIND_CONSTANT( PARAM_GRAVITY_STRENGTH );
BIND_CONSTANT( PARAM_RADIAL_ACCEL );
BIND_CONSTANT( PARAM_TANGENTIAL_ACCEL );
BIND_CONSTANT( PARAM_DAMPING );
BIND_CONSTANT( PARAM_INITIAL_ANGLE );
BIND_CONSTANT( PARAM_INITIAL_SIZE );
BIND_CONSTANT( PARAM_FINAL_SIZE );
BIND_CONSTANT( PARAM_HUE_VARIATION );
BIND_CONSTANT( PARAM_ANIM_SPEED_SCALE );
BIND_CONSTANT( PARAM_ANIM_INITIAL_POS );
BIND_CONSTANT( PARAM_MAX );
BIND_CONSTANT( MAX_COLOR_PHASES );
}
Particles2D::Particles2D() {
for(int i=0;i<PARAM_MAX;i++) {
param[i]=0;
randomness[i]=0;
}
set_param(PARAM_SPREAD,10);
set_param(PARAM_LINEAR_VELOCITY,20);
set_param(PARAM_GRAVITY_STRENGTH,9.8);
set_param(PARAM_RADIAL_ACCEL,0);
set_param(PARAM_TANGENTIAL_ACCEL,0);
set_param(PARAM_INITIAL_ANGLE,0.0);
set_param(PARAM_INITIAL_SIZE,1.0);
set_param(PARAM_FINAL_SIZE,1.0);
set_param(PARAM_ANIM_SPEED_SCALE,1.0);
set_color(Color(1,1,1,1));
time=0;
lifetime=2;
emitting=false;
particles.resize(32);
active_count=-1;
set_emitting(true);
local_space=true;
preprocess=0;
time_scale=1.0;
flip_h=false;
flip_v=false;
v_frames=1;
h_frames=1;
emit_timeout = 0;
time_to_live = 0;
explosiveness=1.0;
}
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