--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file valuenode_random.cpp
+** \brief Template File
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2007, 2008 Chris Moore
+**
+** This package is free software; you can redistribute it and/or
+** modify it under the terms of the GNU General Public License as
+** published by the Free Software Foundation; either version 2 of
+** the License, or (at your option) any later version.
+**
+** This package 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
+** General Public License for more details.
+** \endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "valuenode_random.h"
+#include "synfig/valuenode_const.h"
+#include "synfig/general.h"
+#include "synfig/color.h"
+#include <ETL/misc>
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace etl;
+using namespace synfig;
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+ValueNode_Random::ValueNode_Random(const ValueBase &value):
+ LinkableValueNode(value.get_type())
+{
+ random.set_seed(time(NULL));
+
+ set_link("radius",ValueNode_Const::create(Real(1)));
+ set_link("seed",ValueNode_Const::create(random.get_seed()));
+ set_link("speed",ValueNode_Const::create(Real(1)));
+ set_link("smooth",ValueNode_Const::create(int(RandomNoise::SMOOTH_CUBIC)));
+ set_link("loop",ValueNode_Const::create(Real(0)));
+
+ switch(get_type())
+ {
+ case ValueBase::TYPE_ANGLE:
+ set_link("link",ValueNode_Const::create(value.get(Angle())));
+ break;
+ case ValueBase::TYPE_BOOL:
+ set_link("link",ValueNode_Const::create(value.get(bool())));
+ break;
+ case ValueBase::TYPE_COLOR:
+ set_link("link",ValueNode_Const::create(value.get(Color())));
+ break;
+ case ValueBase::TYPE_INTEGER:
+ set_link("link",ValueNode_Const::create(value.get(int())));
+ break;
+ case ValueBase::TYPE_REAL:
+ set_link("link",ValueNode_Const::create(value.get(Real())));
+ break;
+ case ValueBase::TYPE_TIME:
+ set_link("link",ValueNode_Const::create(value.get(Time())));
+ break;
+ case ValueBase::TYPE_VECTOR:
+ set_link("link",ValueNode_Const::create(value.get(Vector())));
+ break;
+ default:
+ throw Exception::BadType(ValueBase::type_local_name(get_type()));
+ }
+
+ DCAST_HACK_ENABLE();
+}
+
+LinkableValueNode*
+ValueNode_Random::create_new()const
+{
+ return new ValueNode_Random(get_type());
+}
+
+ValueNode_Random*
+ValueNode_Random::create(const ValueBase &x)
+{
+ return new ValueNode_Random(x);
+}
+
+ValueNode_Random::~ValueNode_Random()
+{
+ unlink_all();
+}
+
+ValueBase
+ValueNode_Random::operator()(Time t)const
+{
+ typedef const RandomNoise::SmoothType Smooth;
+
+ Real radius = (*radius_)(t).get(Real());
+ int seed = (*seed_)(t).get(int());
+ int smooth = (*smooth_)(t).get(int());
+ float speed = (*speed_ )(t).get(Real());
+ int loop = int((((*loop_ )(t).get(Real())) * speed) + 0.5);
+ speed *= t;
+
+ random.set_seed(seed);
+
+ switch(get_type())
+ {
+ case ValueBase::TYPE_ANGLE:
+ return ((*link_)(t).get( Angle()) +
+ Angle::deg(random(Smooth(smooth), 0, 0, 0, speed, loop) * radius));
+
+ case ValueBase::TYPE_BOOL:
+ return round_to_int((*link_)(t).get( bool()) +
+ random(Smooth(smooth), 0, 0, 0, speed, loop) * radius) > 0;
+
+ case ValueBase::TYPE_COLOR:
+ return (((*link_)(t).get( Color()) +
+ Color(random(Smooth(smooth), 0, 0, 0, speed, loop),
+ random(Smooth(smooth), 1, 0, 0, speed, loop),
+ random(Smooth(smooth), 2, 0, 0, speed, loop), 0) * radius).clamped());
+
+ case ValueBase::TYPE_INTEGER:
+ return round_to_int((*link_)(t).get( int()) +
+ random(Smooth(smooth), 0, 0, 0, speed, loop) * radius);
+
+ case ValueBase::TYPE_REAL:
+ return ((*link_)(t).get( Real()) +
+ random(Smooth(smooth), 0, 0, 0, speed, loop) * radius);
+
+ case ValueBase::TYPE_TIME:
+ return ((*link_)(t).get( Time()) +
+ random(Smooth(smooth), 0, 0, 0, speed, loop) * radius);
+
+ case ValueBase::TYPE_VECTOR:
+ {
+ float length(random(Smooth(smooth), 0, 0, 0, speed, loop) * radius);
+ Angle::rad angle(random(Smooth(smooth), 1, 0, 0, speed, loop) * PI);
+
+ return ((*link_)(t).get(Vector()) +
+ Vector(Angle::cos(angle).get(), Angle::sin(angle).get()) * length);
+ }
+
+ default:
+ assert(0);
+ break;
+ }
+
+ return ValueBase();
+}
+
+
+String
+ValueNode_Random::get_name()const
+{
+ return "random";
+}
+
+String
+ValueNode_Random::get_local_name()const
+{
+ return _("Random");
+}
+
+bool
+ValueNode_Random::set_link_vfunc(int i,ValueNode::Handle value)
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: CHECK_TYPE_AND_SET_VALUE(link_, get_type());
+ case 1: CHECK_TYPE_AND_SET_VALUE(radius_, ValueBase::TYPE_REAL);
+ case 2: CHECK_TYPE_AND_SET_VALUE(seed_, ValueBase::TYPE_INTEGER);
+ case 3: CHECK_TYPE_AND_SET_VALUE(speed_, ValueBase::TYPE_REAL);
+ case 4: CHECK_TYPE_AND_SET_VALUE(smooth_, ValueBase::TYPE_INTEGER);
+ case 5: CHECK_TYPE_AND_SET_VALUE(loop_, ValueBase::TYPE_REAL);
+ }
+ return false;
+}
+
+ValueNode::LooseHandle
+ValueNode_Random::get_link_vfunc(int i)const
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: return link_;
+ case 1: return radius_;
+ case 2: return seed_;
+ case 3: return speed_;
+ case 4: return smooth_;
+ case 5: return loop_;
+ }
+ return 0;
+}
+
+int
+ValueNode_Random::link_count()const
+{
+ return 6;
+}
+
+String
+ValueNode_Random::link_name(int i)const
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: return "link";
+ case 1: return "radius";
+ case 2: return "seed";
+ case 3: return "speed";
+ case 4: return "smooth";
+ case 5: return "loop";
+ }
+ return String();
+}
+
+String
+ValueNode_Random::link_local_name(int i)const
+{
+ assert(i>=0 && i<link_count());
+
+ switch(i)
+ {
+ case 0: return _("Link");
+ case 1: return _("Radius");
+ case 2: return _("Seed");
+ case 3: return _("Animation Speed");
+ case 4: return _("Interpolation");
+ case 5: return _("Loop Time");
+ }
+ return String();
+}
+
+int
+ValueNode_Random::get_link_index_from_name(const String &name)const
+{
+ if(name=="link" ) return 0;
+ if(name=="radius") return 1;
+ if(name=="seed" ) return 2;
+ if(name=="speed" ) return 3;
+ if(name=="smooth") return 4;
+ if(name=="loop" ) return 5;
+ throw Exception::BadLinkName(name);
+}
+
+bool
+ValueNode_Random::check_type(ValueBase::Type type)
+{
+ return
+ type==ValueBase::TYPE_ANGLE ||
+ type==ValueBase::TYPE_BOOL ||
+ type==ValueBase::TYPE_COLOR ||
+ type==ValueBase::TYPE_INTEGER ||
+ type==ValueBase::TYPE_REAL ||
+ type==ValueBase::TYPE_TIME ||
+ type==ValueBase::TYPE_VECTOR ;
+}
+
+ValueNode*
+ValueNode_Random::clone(const GUID& deriv_guid)const
+{
+ ValueNode_Random* ret = (ValueNode_Random*)LinkableValueNode::clone(deriv_guid);
+ ret->randomize_seed();
+ return ret;
+}
+
+void
+ValueNode_Random::randomize_seed()
+{
+ int i = get_link_index_from_name("seed");
+ ValueNode::Handle link = get_link_vfunc(i);
+ if(!link->is_exported() && link->get_name() == "constant")
+ {
+ int seed = time(NULL) + rand();
+ if (seed < 0) seed = -seed;
+ random.set_seed(seed);
+ set_link(i, ValueNode_Const::create(seed));
+ }
+}
projects / synfig.git / blobdiff