Changeset 673

Timestamp:

08/19/17 02:43:11 (7 years ago)

Author:

Maciej Komosinski

Message:

Added three functions that may be useful in general

Location:

cpp/frams/genetics

Files:

• oper_fx.cpp (modified) (1 diff)
• oper_fx.h (modified) (2 diffs)

cpp/frams/genetics/oper_fx.cpp

@@ -176 +176 @@
 }
 
-
 NeuroClass* GenoOperators::getRandomNeuroClass()
 {
-        SListTempl<NeuroClass*> active;
+        vector<NeuroClass*> active;
         for (int i = 0; i < Neuro::getClassCount(); i++)
-                if (Neuro::getClass(i)->genactive) active += Neuro::getClass(i);
-        if (active.size() == 0) return NULL; else return active(randomN(active.size()));
+                if (Neuro::getClass(i)->genactive)
+                        active.push_back(Neuro::getClass(i));
+        if (active.size() == 0) return NULL; else return active[randomN(active.size())];
+}
+
+int GenoOperators::getRandomNeuroClassWithOutput(const vector<NeuroClass*>& NClist)
+{
+        vector<int> allowed;
+        for (size_t i = 0; i < NClist.size(); i++)
+                if (NClist[i]->getPreferredOutput() != 0) //this NeuroClass provides output
+                        allowed.push_back(i);
+        if (allowed.size() == 0) return -1; else return allowed[randomN(allowed.size())];
+}
+
+int GenoOperators::getRandomNeuroClassWithInput(const vector<NeuroClass*>& NClist)
+{
+        vector<int> allowed;
+        for (size_t i = 0; i < NClist.size(); i++)
+                if (NClist[i]->getPreferredInputs() != 0) //this NeuroClass wants one input connection or more                  
+                        allowed.push_back(i);
+        if (allowed.size() == 0) return -1; else return allowed[randomN(allowed.size())];
+}
+
+int GenoOperators::getRandomChar(const char *choices, const char *excluded)
+{
+        int allowed_count = 0;
+        for (size_t i = 0; i < strlen(choices); i++) if (!strchrn0(excluded, choices[i])) allowed_count++;
+        if (allowed_count == 0) return -1; //no char is allowed
+        int rnd_index = randomN(allowed_count) + 1;
+        allowed_count = 0;
+        for (size_t i = 0; i < strlen(choices); i++)
+        {
+                if (!strchrn0(excluded, choices[i])) allowed_count++;
+                if (allowed_count == rnd_index) return i;
+        }
+        return -1; //never happens
 }
 

cpp/frams/genetics/oper_fx.h

@@ -87 +87 @@
 
 /**Used to perform initializations of Param parameters that are not handled by the Param itself
-(i.e. string parameters need to be initialized here)*/
+(i.e. string parameters or fields that require some complex logic may be initialized here)*/
    virtual void setDefaults() {}
 
@@ -192 +192 @@
    static void linearMix(ParamInterface &p1, int i1, ParamInterface &p2, int i2, double proportion); ///<mixes i1'th and i2'th properties of p1 and p2; proportion should be within [0,1]; 0.5 causes both properties to become their average. For integer properties applies random "dithering" when necessary.
    static NeuroClass* getRandomNeuroClass(); ///<returns random neuroclass or NULL when no active classes.
+   static int getRandomNeuroClassWithOutput(const vector<NeuroClass*>& NClist); //returns index of random neuroclass from the NClist or -1 (no neurons on the list that provide output)
+   static int getRandomNeuroClassWithInput(const vector<NeuroClass*>& NClist); //returns index of random neuroclass from the NClist or -1 (no neurons on the list that want input(s))
+   static int getRandomChar(const char *choices, const char *excluded); ///<returns index of a random character from 'choices' excluding 'excluded', or -1 when everything is excluded or 'choices' is empty.
    static NeuroClass* parseNeuroClass(char *&s); ///<returns longest matching neuroclass or NULL if the string does not begin with a valid neuroclass name. Advances \e s pointer.
    static Neuro* findNeuro(const Model *m,const NeuroClass *nc); ///<returns pointer to first Neuro of class \e nc, or NULL if there is no such Neuro.