Refactor: move gen_sin to new generators file

Makefile

@@ -5,7 +5,7 @@ OLEVEL = -O2
 
 CFLAGS = -Wall -std=c++17 $(OLEVEL) -o $(PROJ)
 
-OBJECTS = src/wtpp.cpp src/wave.cpp src/wavetable.cpp
+OBJECTS = src/wtpp.cpp src/wave.cpp src/wavetable.cpp src/generators.cpp
 
 build:
 	$(CC) $(CFLAGS) $(OBJECTS)

src/generators.cpp

@@ -0,0 +1,17 @@
+#include "generators.h"
+
+sample_table_t gen_sin() {
+  // Make the new Wavetable object
+  sample_table_t sin_vals = {0};
+  // Make a place to store calculated value
+  float_t val = 0;
+
+  // Loop through number of samples and set table values
+  for (uint16_t i = 0; i < DEFAULT_N_SAMPLES; i++) {
+    // Calculate the value of sin at position
+    val = std::sin((2 * M_PI * i) / DEFAULT_N_SAMPLES);
+    sin_vals[i] = val;
+  }
+  // Return the completed Wavetable object
+  return sin_vals;
+}

src/generators.h

@@ -0,0 +1,14 @@
+/*! @file generators.h
+    @brief Header for wave cycle data generators
+ */
+#ifndef GENERATORS_H_
+#define GENERATORS_H_
+
+#include "wave.h"
+
+/*! Generate sine wave data
+    @return a table of values
+ */
+sample_table_t gen_sin();
+
+#endif // GENERATORS_H_

src/wave.cpp

@@ -10,19 +10,3 @@ void Wave::print_head() {
     std::cout << m_table[i] << '\n';
   }
 }
-
-sample_table_t gen_sin() {
-  // Make the new Wavetable object
-  sample_table_t sin_vals = {0};
-  // Make a place to store calculated value
-  float_t val = 0;
-
-  // Loop through number of samples and set table values
-  for (uint16_t i = 0; i < DEFAULT_N_SAMPLES; i++) {
-    // Calculate the value of sin at position
-    val = std::sin((2 * M_PI * i) / DEFAULT_N_SAMPLES);
-    sin_vals[i] = val;
-  }
-  // Return the completed Wavetable object
-  return sin_vals;
-}

src/wave.h

@@ -37,9 +37,4 @@ public:
   void print_head();
 };
 
-/*! Generate sine wave data
-    @return a table of values
- */
-sample_table_t gen_sin();
-
 #endif // WAVE_H_

src/wtpp.cpp

@@ -8,6 +8,7 @@
 #include <math.h>
 
 #include "wave.h"
+#include "generators.h"
 #include "wavetable.h"
 
 static const uint32_t DEFAULT_SAMPLE_RATE = 44100; // 44.1 kHz sampling rate