Feat: add Wave class for single cycle waveform and make Wavetable proper

Refs: #2

src/wtpp.cpp

@@ -11,21 +11,42 @@ static const uint32_t DEFAULT_SAMPLE_RATE = 44100; // 44.1 kHz sampling rate
 static const uint8_t DEFAULT_BIT_DEPTH = 12;
 static const uint16_t DEFAULT_N_SAMPLES = 1024;
 
-
-class Wavetable
+/* Single cycle wave object with lookup table */
+class Wave
 {
 private:
-  uint_fast16_t m_id {}; // Unique ID number of wavetable
-  std::string m_name {}; // String name of wavetable
+  uint16_t m_id{}; // Unique ID number of wave
   std::array<float_t, DEFAULT_N_SAMPLES> m_table; // table data
-
 public:
-  Wavetable(uint16_t id, std::string name)
-    : m_id{ id }, m_name{ name }, m_table {}
+  Wave(uint16_t id) : m_id{id}, m_table{}
   {
     // Do nothing
   }
 
+  uint16_t id() {
+    return m_id;
+  }
+
+  void set_table(std::array<float_t, DEFAULT_N_SAMPLES> table) {
+    m_table = table;
+  }
+
+  void print_head() {
+    for (uint8_t i = 0; i < 10; i++) {
+      std::cout << m_table[i] << '\n';
+    }
+  }
+};
+
+/* Table of single cycle wave lookup tables */
+class Wavetable
+{
+private:
+  uint16_t m_id {}; // Unique ID number of wavetable
+  std::string m_name {}; // String name of wavetable
+  std::array<Wave, DEFAULT_N_SAMPLES> m_table; // table data
+
+public:
   std::string name()
   {
     std::string id_str = std::to_string(m_id);
@@ -34,17 +55,10 @@ public:
     return id_str;
   }
 
-  void set_table(std::array<float_t, DEFAULT_N_SAMPLES> table)
+  void set_table(std::array<Wave, DEFAULT_N_SAMPLES> table)
   {
     m_table = table;
   }
-
-  void print_head()
-  {
-    for(uint8_t i = 0; i < 10; i++) {
-      std::cout << m_table[i] << '\n';
-    }
-  }
 };
 
 /* Logs a message */
@@ -53,11 +67,11 @@ static void log(std::string message)
   std::cout << "wtpp: " << message << '\n';
 }
 
-/* Generates basic sine Wavetable object */
-static Wavetable gen_sin_tbl()
+/* Generates basic sine Wave object */
+static Wave gen_sine()
 {
   // Make the new Wavetable object
-  Wavetable table = {0, "sine"};
+  Wave wave = {0};
   // Make an array to hold our values
   std::array<float_t, DEFAULT_N_SAMPLES> sin_vals {};
   // Make a place to store calculated value
@@ -70,10 +84,10 @@ static Wavetable gen_sin_tbl()
     sin_vals[i] = val;
   }
   // Store values in new Wavetable.table
-  table.set_table(sin_vals);
+  wave.set_table(sin_vals);
 
   // Return the completed Wavetable object
-  return table;
+  return wave;
 }
 
 int main()
@@ -81,12 +95,12 @@ int main()
   // Generate wavetables
   log("Generating wavetables");
 
-  // Generate sine table
-  Wavetable sin_tbl = gen_sin_tbl();
-  log(sin_tbl.name());
+  // Generate sine wave cycle object
+  Wave sin_wave = gen_sine();
+  log(std::to_string(sin_wave.id()));
 
   log("Printing head of sine table");
-  sin_tbl.print_head();
+  sin_wave.print_head();
 
   return 0;
 }