diff options
author | Thomas Grill <xovo@users.sourceforge.net> | 2009-04-01 21:13:09 +0000 |
---|---|---|
committer | Thomas Grill <xovo@users.sourceforge.net> | 2009-04-01 21:13:09 +0000 |
commit | 0ed7a8b68dd73e2b0473b8127aeca99f3bac9061 (patch) | |
tree | 5c67818b38a5cc2f9caa5ca7f8640ca356adf02b /externals/grill/flext/examples/source/henon.cpp | |
parent | bb4c7f6a245394d09dac9adfb2efb093d3d98452 (diff) |
cleaned up grill externals - replaced with svn:externals to svn.grrrr.org/ext/trunk/
svn path=/trunk/; revision=10951
Diffstat (limited to 'externals/grill/flext/examples/source/henon.cpp')
-rw-r--r-- | externals/grill/flext/examples/source/henon.cpp | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/externals/grill/flext/examples/source/henon.cpp b/externals/grill/flext/examples/source/henon.cpp deleted file mode 100644 index e48b9555..00000000 --- a/externals/grill/flext/examples/source/henon.cpp +++ /dev/null @@ -1,122 +0,0 @@ -/* -flext examples - henon - -Copyright (c) 2003 Thomas Grill (xovo@gmx.net) -For information on usage and redistribution, and for a DISCLAIMER OF ALL -WARRANTIES, see the file, "license.txt," in this distribution. - -------------------------------------------------------------------------- - -This is a simple external featuring the chaotic Henon attractor. - -See also http://improv.sapp.org/doc/examples/synthImprov/henontune/henontune.html -Thanks to David Casal for the pointer! - -*/ - -// IMPORTANT: enable attribute processing (specify before inclusion of flext headers!) -// For clarity, this is done here, but you'd better specify it as a compiler definition -// FLEXT_ATTRIBUTES must be 0 or 1, -#define FLEXT_ATTRIBUTES 1 - - -// include flext header -#include <flext.h> - -// check for appropriate flext version -#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 401) -#error You need at least flext version 0.4.1 -#endif - - -class henon: - public flext_base -{ - FLEXT_HEADER_S(henon,flext_base,Setup) - -public: - // constructor - henon(int argc,const t_atom *argv); - -protected: - void m_bang(); - void m_reset() { x = y = 0; } - - void m_alpha(float a) { alpha = a; } - void m_beta(float b) { beta = b; } - - float alpha,beta; - float x,y; - -private: - static void Setup(t_classid c); - - // method callbacks - FLEXT_CALLBACK(m_reset) - FLEXT_CALLBACK(m_bang) - FLEXT_CALLBACK_F(m_alpha) - FLEXT_CALLBACK_F(m_beta) - - // define attribute callbacks for variables alpha and beta (with GET and SET properties) - FLEXT_ATTRVAR_F(alpha) - FLEXT_ATTRVAR_F(beta) -}; - -// instantiate the class -FLEXT_NEW_V("henon",henon) - - -henon::henon(int argc,const t_atom *argv): - alpha(0),beta(0),x(0),y(0) // initializations -{ - // define inlets - AddInAnything("reset,bang,..."); - AddInFloat("alpha"); - AddInFloat("beta"); - - // define outlets - AddOutFloat(); - - // processing command line - if(argc == 2 && CanbeFloat(argv[0]) && CanbeFloat(argv[1])) { - // two float args - alpha = GetAFloat(argv[0]); - beta = GetAFloat(argv[1]); - } -} - -void henon::Setup(t_classid c) -{ - // register methods - FLEXT_CADDBANG(c,0,m_bang); - FLEXT_CADDMETHOD_(c,0,"reset",m_reset); - - // methods for non-left inlets - FLEXT_CADDMETHOD(c,1,m_alpha); - FLEXT_CADDMETHOD(c,2,m_beta); - - // register attributes - FLEXT_CADDATTR_VAR1(c,"alpha",alpha); // register attribute "alpha" - FLEXT_CADDATTR_VAR1(c,"beta",beta); // register attribute "beta" -} - -// Trigger output -void henon::m_bang() -{ - float _alpha_ = alpha*1.5f-2.5f; - float _beta_ = beta-0.5f; - - float newx = 1 + _alpha_ * x * x + _beta_ * y; - float newy = x; - x = newx; - y = newy; - - float output = (x + 1.0f)/2.0f; - if(output < 0) - output = 0; - else if(output > 1) - output = 1; - - // output value to outlet - ToOutFloat(0,output); // (0 stands for the outlet index 0) -} |