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godot/scene/animation/tween.cpp

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/*************************************************************************/
/* tween.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 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 "tween.h"
bool Tween::_set(const StringName& p_name, const Variant& p_value) {
String name=p_name;
if (name=="playback/speed" || name=="speed") { //bw compatibility
set_speed(p_value);
} else if (name=="playback/active") {
set_active(p_value);
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} else if (name=="playback/repeat") {
set_repeat(p_value);
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}
return true;
}
bool Tween::_get(const StringName& p_name,Variant &r_ret) const {
String name=p_name;
if (name=="playback/speed") { //bw compatibility
r_ret=speed_scale;
} else if (name=="playback/active") {
r_ret=is_active();
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} else if(name=="playback/repeat") {
r_ret=is_repeat();
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}
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return true;
}
void Tween::_get_property_list(List<PropertyInfo> *p_list) const {
p_list->push_back( PropertyInfo( Variant::BOOL, "playback/active", PROPERTY_HINT_NONE,"" ) );
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p_list->push_back( PropertyInfo( Variant::BOOL, "playback/repeat", PROPERTY_HINT_NONE,"" ) );
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p_list->push_back( PropertyInfo( Variant::REAL, "playback/speed", PROPERTY_HINT_RANGE, "-64,64,0.01") );
}
void Tween::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_ENTER_SCENE: {
if (!processing) {
//make sure that a previous process state was not saved
//only process if "processing" is set
set_fixed_process(false);
set_process(false);
}
} break;
case NOTIFICATION_READY: {
} break;
case NOTIFICATION_PROCESS: {
if (tween_process_mode==TWEEN_PROCESS_FIXED)
break;
if (processing)
_tween_process( get_process_delta_time() );
} break;
case NOTIFICATION_FIXED_PROCESS: {
if (tween_process_mode==TWEEN_PROCESS_IDLE)
break;
if (processing)
_tween_process( get_fixed_process_delta_time() );
} break;
case NOTIFICATION_EXIT_SCENE: {
stop_all();
} break;
}
}
void Tween::_bind_methods() {
ObjectTypeDB::bind_method(_MD("is_active"),&Tween::is_active );
ObjectTypeDB::bind_method(_MD("set_active","active"),&Tween::set_active );
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ObjectTypeDB::bind_method(_MD("is_repeat"),&Tween::is_repeat );
ObjectTypeDB::bind_method(_MD("set_repeat","repeat"),&Tween::set_repeat );
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ObjectTypeDB::bind_method(_MD("set_speed","speed"),&Tween::set_speed);
ObjectTypeDB::bind_method(_MD("get_speed"),&Tween::get_speed);
ObjectTypeDB::bind_method(_MD("set_tween_process_mode","mode"),&Tween::set_tween_process_mode);
ObjectTypeDB::bind_method(_MD("get_tween_process_mode"),&Tween::get_tween_process_mode);
ObjectTypeDB::bind_method(_MD("start"),&Tween::start );
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ObjectTypeDB::bind_method(_MD("reset","object","key"),&Tween::reset );
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ObjectTypeDB::bind_method(_MD("reset_all"),&Tween::reset_all );
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ObjectTypeDB::bind_method(_MD("stop","object","key"),&Tween::stop );
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ObjectTypeDB::bind_method(_MD("stop_all"),&Tween::stop_all );
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ObjectTypeDB::bind_method(_MD("resume","object","key"),&Tween::resume );
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ObjectTypeDB::bind_method(_MD("resume_all"),&Tween::resume_all );
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ObjectTypeDB::bind_method(_MD("remove","object","key"),&Tween::remove );
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ObjectTypeDB::bind_method(_MD("remove_all"),&Tween::remove_all );
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ObjectTypeDB::bind_method(_MD("seek"),&Tween::seek );
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ObjectTypeDB::bind_method(_MD("interpolate_property","object","property","initial_val","final_val","times_in_sec","trans_type","ease_type"),&Tween::interpolate_property );
ObjectTypeDB::bind_method(_MD("interpolate_method","object","method","initial_val","final_val","times_in_sec","trans_type","ease_type"),&Tween::interpolate_method );
ADD_SIGNAL( MethodInfo("tween_start", PropertyInfo( Variant::OBJECT,"object"), PropertyInfo( Variant::STRING,"key")) );
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ADD_SIGNAL( MethodInfo("tween_step", PropertyInfo( Variant::OBJECT,"object"), PropertyInfo( Variant::STRING,"key"), PropertyInfo( Variant::REAL,"elapsed"), PropertyInfo( Variant::OBJECT,"value")) );
ADD_SIGNAL( MethodInfo("tween_complete", PropertyInfo( Variant::OBJECT,"object"), PropertyInfo( Variant::STRING,"key")) );
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ADD_PROPERTY( PropertyInfo( Variant::INT, "playback/process_mode", PROPERTY_HINT_ENUM, "Fixed,Idle"), _SCS("set_tween_process_mode"), _SCS("get_tween_process_mode"));
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//ADD_PROPERTY( PropertyInfo( Variant::BOOL, "activate"), _SCS("set_active"), _SCS("is_active"));
BIND_CONSTANT(TRANS_LINEAR);
BIND_CONSTANT(TRANS_SINE);
BIND_CONSTANT(TRANS_QUINT);
BIND_CONSTANT(TRANS_QUART);
BIND_CONSTANT(TRANS_QUAD);
BIND_CONSTANT(TRANS_EXPO);
BIND_CONSTANT(TRANS_ELASTIC);
BIND_CONSTANT(TRANS_CUBIC);
BIND_CONSTANT(TRANS_CIRC);
BIND_CONSTANT(TRANS_BOUNCE);
BIND_CONSTANT(TRANS_BACK);
BIND_CONSTANT(EASE_IN);
BIND_CONSTANT(EASE_OUT);
BIND_CONSTANT(EASE_IN_OUT);
BIND_CONSTANT(EASE_OUT_IN);
}
Variant Tween::_run_equation(InterpolateData& p_data) {
Variant& initial_val = p_data.initial_val;
Variant& delta_val = p_data.delta_val;
Variant result;
#define APPLY_EQUATION(element)\
r.element = _run_equation(p_data.trans_type, p_data.ease_type, p_data.elapsed, i.element, d.element, p_data.times_in_sec);
switch(initial_val.get_type())
{
case Variant::INT:
result = (int) _run_equation(p_data.trans_type, p_data.ease_type, p_data.elapsed, (int) initial_val, (int) delta_val, p_data.times_in_sec);
break;
case Variant::REAL:
result = _run_equation(p_data.trans_type, p_data.ease_type, p_data.elapsed, (real_t) initial_val, (real_t) delta_val, p_data.times_in_sec);
break;
case Variant::VECTOR2:
{
Vector2 i = initial_val;
Vector2 d = delta_val;
Vector2 r;
APPLY_EQUATION(x);
APPLY_EQUATION(y);
result = r;
}
break;
case Variant::VECTOR3:
{
Vector3 i = initial_val;
Vector3 d = delta_val;
Vector3 r;
APPLY_EQUATION(x);
APPLY_EQUATION(y);
APPLY_EQUATION(z);
result = r;
}
break;
case Variant::MATRIX3:
{
Matrix3 i = initial_val;
Matrix3 d = delta_val;
Matrix3 r;
APPLY_EQUATION(elements[0][0]);
APPLY_EQUATION(elements[0][1]);
APPLY_EQUATION(elements[0][2]);
APPLY_EQUATION(elements[1][0]);
APPLY_EQUATION(elements[1][1]);
APPLY_EQUATION(elements[1][2]);
APPLY_EQUATION(elements[2][0]);
APPLY_EQUATION(elements[2][1]);
APPLY_EQUATION(elements[2][2]);
result = r;
}
break;
case Variant::MATRIX32:
{
Matrix3 i = initial_val;
Matrix3 d = delta_val;
Matrix3 r;
APPLY_EQUATION(elements[0][0]);
APPLY_EQUATION(elements[0][1]);
APPLY_EQUATION(elements[1][0]);
APPLY_EQUATION(elements[1][1]);
APPLY_EQUATION(elements[2][0]);
APPLY_EQUATION(elements[2][1]);
result = r;
}
break;
case Variant::QUAT:
{
Quat i = initial_val;
Quat d = delta_val;
Quat r;
APPLY_EQUATION(x);
APPLY_EQUATION(y);
APPLY_EQUATION(z);
APPLY_EQUATION(w);
result = r;
}
break;
case Variant::_AABB:
{
AABB i = initial_val;
AABB d = delta_val;
AABB r;
APPLY_EQUATION(pos.x);
APPLY_EQUATION(pos.y);
APPLY_EQUATION(pos.z);
APPLY_EQUATION(size.x);
APPLY_EQUATION(size.y);
APPLY_EQUATION(size.z);
result = r;
}
break;
case Variant::TRANSFORM:
{
Transform i = initial_val;
Transform d = delta_val;
Transform r;
APPLY_EQUATION(basis.elements[0][0]);
APPLY_EQUATION(basis.elements[0][1]);
APPLY_EQUATION(basis.elements[0][2]);
APPLY_EQUATION(basis.elements[1][0]);
APPLY_EQUATION(basis.elements[1][1]);
APPLY_EQUATION(basis.elements[1][2]);
APPLY_EQUATION(basis.elements[2][0]);
APPLY_EQUATION(basis.elements[2][1]);
APPLY_EQUATION(basis.elements[2][2]);
APPLY_EQUATION(origin.x);
APPLY_EQUATION(origin.y);
APPLY_EQUATION(origin.z);
result = r;
}
break;
case Variant::COLOR:
{
Color i = initial_val;
Color d = delta_val;
Color r;
APPLY_EQUATION(r);
APPLY_EQUATION(g);
APPLY_EQUATION(b);
APPLY_EQUATION(a);
result = r;
}
break;
};
#undef APPLY_EQUATION
return result;
}
bool Tween::_apply_tween_value(InterpolateData& p_data, Variant& value) {
Variant& object = p_data.object;
if(p_data.is_method) {
Variant *arg[1] = { &value };
Variant::CallError error;
object.call(p_data.key, (const Variant **) arg, 1, error);
if(error.error == Variant::CallError::CALL_OK)
return true;
return false;
} else {
bool valid = false;
object.set(p_data.key,value, &valid);
return valid;
}
return true;
}
void Tween::_tween_process(float p_delta) {
if (speed_scale == 0)
return;
p_delta *= speed_scale;
for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
InterpolateData& data = E->get();
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if(!data.active)
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continue;
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if(data.elapsed == data.times_in_sec) {
if(!repeat)
continue;
data.elapsed = 0;
}
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if(data.elapsed == 0)
emit_signal("tween_start",data.object,data.key);
data.elapsed += p_delta;
if(data.elapsed > data.times_in_sec)
data.elapsed = data.times_in_sec;
Variant result = _run_equation(data);
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emit_signal("tween_step",data.object,data.key,data.elapsed,result);
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_apply_tween_value(data, result);
if(data.elapsed == data.times_in_sec)
emit_signal("tween_complete",data.object,data.key);
}
}
void Tween::set_tween_process_mode(TweenProcessMode p_mode) {
if (tween_process_mode==p_mode)
return;
bool pr = processing;
if (pr)
_set_process(false);
tween_process_mode=p_mode;
if (pr)
_set_process(true);
}
Tween::TweenProcessMode Tween::get_tween_process_mode() const {
return tween_process_mode;
}
void Tween::_set_process(bool p_process,bool p_force) {
if (processing==p_process && !p_force)
return;
switch(tween_process_mode) {
case TWEEN_PROCESS_FIXED: set_fixed_process(p_process && active); break;
case TWEEN_PROCESS_IDLE: set_process(p_process && active); break;
}
processing=p_process;
}
bool Tween::is_active() const {
return active;
}
void Tween::set_active(bool p_active) {
if (active==p_active)
return;
active=p_active;
_set_process(processing,true);
}
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bool Tween::is_repeat() const {
return repeat;
}
void Tween::set_repeat(bool p_repeat) {
repeat = p_repeat;
}
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void Tween::set_speed(float p_speed) {
speed_scale=p_speed;
}
float Tween::get_speed() const {
return speed_scale;
}
bool Tween::start() {
set_active(true);
_set_process(true);
return true;
}
bool Tween::reset(Variant p_object, String p_key) {
for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
InterpolateData& data = E->get();
if(data.object == p_object && data.key == p_key)
_apply_tween_value(data, data.initial_val);
}
return true;
}
bool Tween::reset_all() {
for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
InterpolateData& data = E->get();
_apply_tween_value(data, data.initial_val);
}
return true;
}
bool Tween::stop(Variant p_object, String p_key) {
for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
InterpolateData& data = E->get();
if(data.object == p_object && data.key == p_key)
data.active = false;
}
return true;
}
bool Tween::stop_all() {
set_active(false);
_set_process(false);
for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
InterpolateData& data = E->get();
data.active = false;
}
return true;
}
bool Tween::resume(Variant p_object, String p_key) {
set_active(true);
_set_process(true);
for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
InterpolateData& data = E->get();
if(data.object == p_object && data.key == p_key)
data.active = true;
}
return true;
}
bool Tween::resume_all() {
set_active(true);
_set_process(true);
for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
InterpolateData& data = E->get();
data.active = true;
}
return true;
}
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bool Tween::remove(Variant p_object, String p_key) {
for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
InterpolateData& data = E->get();
if(data.object == p_object && data.key == p_key) {
interpolates.erase(E);
return true;
}
}
return true;
}
bool Tween::remove_all() {
set_active(false);
_set_process(false);
interpolates.clear();
return true;
}
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bool Tween::seek(real_t p_time) {
for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
InterpolateData& data = E->get();
data.elapsed = p_time;
if(data.elapsed > data.times_in_sec)
data.elapsed = data.times_in_sec;
Variant result = _run_equation(data);
_apply_tween_value(data, result);
}
return true;
}
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bool Tween::_calc_delta_val(InterpolateData& p_data) {
Variant& initial_val = p_data.initial_val;
Variant& delta_val = p_data.delta_val;
Variant& final_val = p_data.final_val;
switch(initial_val.get_type()) {
case Variant::INT:
delta_val = (int) final_val - (int) initial_val;
break;
case Variant::REAL:
delta_val = (real_t) final_val - (real_t) initial_val;
break;
case Variant::VECTOR2:
delta_val = final_val.operator Vector2() - initial_val.operator Vector2();
break;
case Variant::VECTOR3:
delta_val = final_val.operator Vector3() - initial_val.operator Vector3();
break;
case Variant::MATRIX3:
{
Matrix3 i = initial_val;
Matrix3 f = final_val;
delta_val = Matrix3(f.elements[0][0] - i.elements[0][0],
f.elements[0][1] - i.elements[0][1],
f.elements[0][2] - i.elements[0][2],
f.elements[1][0] - i.elements[1][0],
f.elements[1][1] - i.elements[1][1],
f.elements[1][2] - i.elements[1][2],
f.elements[2][0] - i.elements[2][0],
f.elements[2][1] - i.elements[2][1],
f.elements[2][2] - i.elements[2][2]
);
}
break;
case Variant::MATRIX32:
{
Matrix32 i = initial_val;
Matrix32 f = final_val;
Matrix32 d = Matrix32();
d[0][0] = f.elements[0][0] - i.elements[0][0];
d[0][1] = f.elements[0][1] - i.elements[0][1];
d[1][0] = f.elements[1][0] - i.elements[1][0];
d[1][1] = f.elements[1][1] - i.elements[1][1];
d[2][0] = f.elements[2][0] - i.elements[2][0];
d[2][1] = f.elements[2][1] - i.elements[2][1];
delta_val = d;
}
break;
case Variant::QUAT:
delta_val = final_val.operator Quat() - initial_val.operator Quat();
break;
case Variant::_AABB:
{
AABB i = initial_val;
AABB f = final_val;
delta_val = AABB(f.pos - i.pos, f.size - i.size);
}
break;
case Variant::TRANSFORM:
{
Transform i = initial_val;
Transform f = final_val;
Transform d;
d.set(f.basis.elements[0][0] - i.basis.elements[0][0],
f.basis.elements[0][1] - i.basis.elements[0][1],
f.basis.elements[0][2] - i.basis.elements[0][2],
f.basis.elements[1][0] - i.basis.elements[1][0],
f.basis.elements[1][1] - i.basis.elements[1][1],
f.basis.elements[1][2] - i.basis.elements[1][2],
f.basis.elements[2][0] - i.basis.elements[2][0],
f.basis.elements[2][1] - i.basis.elements[2][1],
f.basis.elements[2][2] - i.basis.elements[2][2],
f.origin.x - i.origin.x,
f.origin.y - i.origin.y,
f.origin.z - i.origin.z
);
delta_val = d;
}
break;
case Variant::COLOR:
{
Color i = initial_val;
Color f = final_val;
delta_val = Color(f.r - i.r, f.g - i.g, f.b - i.b, f.a - i.a);
}
break;
default:
ERR_PRINT("Invalid param type, except(int/real/vector2/vector/matrix/matrix32/quat/aabb/transform/color)");
return false;
};
return true;
}
bool Tween::interpolate_property(Variant p_object
, String p_property
, Variant p_initial_val
, Variant p_final_val
, real_t p_times_in_sec
, TransitionType p_trans_type
, EaseType p_ease_type
) {
ERR_FAIL_COND_V(p_object.get_type() != Variant::OBJECT, false);
ERR_FAIL_COND_V(p_initial_val.get_type() != p_final_val.get_type(), false);
ERR_FAIL_COND_V(p_times_in_sec <= 0, false);
bool prop_found = false;
Object *obj = (Object *) p_object;
List<PropertyInfo> props;
obj->get_property_list(&props);
for(List<PropertyInfo>::Element *E=props.front();E;E=E->next()) {
PropertyInfo& prop=E->get();
if(prop.name==p_property)
{
prop_found = true;
break;
}
}
ERR_FAIL_COND_V(!prop_found, false);
InterpolateData data;
data.active = true;
data.is_method = false;
data.elapsed = 0;
data.object = p_object;
data.key = p_property;
data.initial_val = p_initial_val;
data.final_val = p_final_val;
data.times_in_sec = p_times_in_sec;
data.trans_type = p_trans_type;
data.ease_type = p_ease_type;
if(!_calc_delta_val(data))
return false;
interpolates.push_back(data);
return true;
}
bool Tween::interpolate_method(Variant p_object
, String p_method
, Variant p_initial_val
, Variant p_final_val
, real_t p_times_in_sec
, TransitionType p_trans_type
, EaseType p_ease_type
) {
ERR_FAIL_COND_V(p_object.get_type() != Variant::OBJECT, false);
ERR_FAIL_COND_V(p_initial_val.get_type() != p_final_val.get_type(), false);
ERR_FAIL_COND_V(p_times_in_sec <= 0, false);
Object *obj = (Object *) p_object;
ERR_FAIL_COND_V(!obj->has_method(p_method), false);
InterpolateData data;
data.active = true;
data.is_method = true;
data.elapsed = 0;
data.object = p_object;
data.key = p_method;
data.initial_val = p_initial_val;
data.final_val = p_final_val;
data.times_in_sec = p_times_in_sec;
data.trans_type = p_trans_type;
data.ease_type = p_ease_type;
if(!_calc_delta_val(data))
return false;
interpolates.push_back(data);
return true;
}
Tween::Tween() {
//String autoplay;
tween_process_mode=TWEEN_PROCESS_IDLE;
processing=false;
active=false;
Add tween seek/repeat support Add tween demo
2014-08-20 16:39:28 +08:00
repeat=false;
Add tween support for godot
2014-08-20 12:01:41 +08:00
speed_scale=1;
}
Tween::~Tween() {
}
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