Session 8.2

bleepbloopmachine/CMakeLists.txt

@@ -1,5 +1,11 @@
 cmake_minimum_required(VERSION 3.19.0)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
 project(bleepbloopmachine CXX)
 add_executable(bleepbloopmachine src/main.cc)
+add_library(controls src/controls.h src/controls.cc)
 target_link_arduino_libraries(bleepbloopmachine AUTO_PUBLIC)
+target_link_arduino_libraries(controls AUTO_PUBLIC)
+target_link_libraries(bleepbloopmachine PRIVATE controls)
 target_enable_arduino_upload(bleepbloopmachine)

bleepbloopmachine/src/controls.cc

@@ -0,0 +1,96 @@
+#include "controls.h"
+
+void Controls::begin() {
+  pinMode(BUTTON_CLOCK, OUTPUT);
+  digitalWrite(BUTTON_CLOCK, HIGH);
+  pinMode(BUTTON_LATCH, OUTPUT);
+  digitalWrite(BUTTON_LATCH, HIGH);
+  pinMode(BUTTON_DATA, INPUT);
+}
+
+int16_t Controls::readJoystickX(uint8_t sampling) {
+  float reading = 0;
+
+  if (JOYSTICK_X >= 0) {
+    for (int i = 0; i < sampling; i++) {
+      reading += analogRead(JOYSTICK_X);
+    }
+    reading /= sampling;
+
+    reading -= JOYSTICK_X_CENTER;
+  }
+
+  return reading;
+}
+
+int16_t Controls::readJoystickY(uint8_t sampling) {
+  float reading = 0;
+
+  if (JOYSTICK_Y >= 0) {
+    for (int i = 0; i < sampling; i++) {
+      reading += analogRead(JOYSTICK_Y);
+    }
+    reading /= sampling;
+
+    reading -= JOYSTICK_Y_CENTER;
+  }
+
+  return reading;
+}
+
+uint32_t Controls::readButtons(void) {
+  uint32_t buttons = 0;
+
+  uint8_t shift_buttons = 0;
+
+  digitalWrite(BUTTON_LATCH, LOW);
+  // delayMicroseconds(1);
+  digitalWrite(BUTTON_LATCH, HIGH);
+  // delayMicroseconds(1);
+
+  for (int i = 0; i < 8; i++) {
+    shift_buttons <<= 1;
+    shift_buttons |= digitalRead(BUTTON_DATA);
+    digitalWrite(BUTTON_CLOCK, HIGH);
+    // delayMicroseconds(1);
+    digitalWrite(BUTTON_CLOCK, LOW);
+    // delayMicroseconds(1);
+  }
+
+  if (shift_buttons & BUTTON_SHIFTMASK_B) {
+    buttons |= PAD_B;
+  }
+  if (shift_buttons & BUTTON_SHIFTMASK_A) {
+    buttons |= PAD_A;
+  }
+  if (shift_buttons & BUTTON_SHIFTMASK_SELECT) {
+    buttons |= PAD_SELECT;
+  }
+  if (shift_buttons & BUTTON_SHIFTMASK_START) {
+    buttons |= PAD_START;
+  }
+
+  int16_t x = readJoystickX();
+  if (x > 350)
+    buttons |= PAD_RIGHT;
+  else if (x < -350)
+    buttons |= PAD_LEFT;
+  int16_t y = readJoystickY();
+  if (y > 350)
+    buttons |= PAD_DOWN;
+  else if (y < -350)
+    buttons |= PAD_UP;
+
+  // TODO add encoder in here when it's pinned
+
+  last_buttons = curr_buttons;
+  curr_buttons = buttons;
+  justpressed_buttons = (last_buttons ^ curr_buttons) & curr_buttons;
+  justreleased_buttons = (last_buttons ^ curr_buttons) & last_buttons;
+
+  return buttons;
+}
+
+uint32_t Controls::justPressed() { return justpressed_buttons; }
+
+uint32_t Controls::justReleased() { return justreleased_buttons; }

bleepbloopmachine/src/controls.h

@@ -0,0 +1,40 @@
+#pragma once
+#include <Arduino.h>
+#define BUTTON_CLOCK 48
+#define BUTTON_DATA 49
+#define BUTTON_LATCH 50
+#define BUTTON_SHIFTMASK_B 0x80
+#define BUTTON_SHIFTMASK_A 0x40
+#define BUTTON_SHIFTMASK_START 0x20
+#define BUTTON_SHIFTMASK_SELECT 0x10
+
+#define JOYSTICK_X A11
+#define JOYSTICK_Y A10
+
+#define JOYSTICK_X_CENTER 512
+#define JOYSTICK_Y_CENTER 512
+
+#define PAD_A 0x01
+#define PAD_B 0x02
+#define PAD_SELECT 0x04
+#define PAD_START 0x08
+#define PAD_UP 0x10
+#define PAD_DOWN 0x20
+#define PAD_LEFT 0x40
+#define PAD_RIGHT 0x80
+
+class Controls {
+public:
+  void begin();
+  int16_t readJoystickX(uint8_t sampling = 3);
+  int16_t readJoystickY(uint8_t sampling = 3);
+  uint32_t readButtons();
+  uint32_t justPressed();
+  uint32_t justReleased();
+
+private:
+  uint32_t last_buttons;
+  uint32_t curr_buttons;
+  uint32_t justpressed_buttons;
+  uint32_t justreleased_buttons;
+};

bleepbloopmachine/src/freq.h

@@ -0,0 +1,134 @@
+float freq[12][9] = {
+    {
+        16.3516,
+        32.7032,
+        65.40639,
+        130.8128,
+        261.6256,
+        523.2511,
+        1046.502,
+        2093.005,
+        4186.009,
+    },
+    {
+        17.32391,
+        34.64783,
+        69.29566,
+        138.5913,
+        277.1826,
+        554.3653,
+        1108.731,
+        2217.461,
+        4434.922,
+    },
+    {
+        18.35405,
+        36.7081,
+        73.41619,
+        146.8324,
+        293.6648,
+        587.3295,
+        1174.659,
+        2349.318,
+        4698.636,
+    },
+    {
+        19.44544,
+        38.89087,
+        77.78175,
+        155.5635,
+        311.127,
+        622.254,
+        1244.508,
+        2489.016,
+        4978.032,
+    },
+    {
+        20.60172,
+        41.20344,
+        82.40689,
+        164.8138,
+        329.6276,
+        659.2551,
+        1318.51,
+        2637.02,
+        5274.041,
+    },
+    {
+        21.82676,
+        43.65353,
+        87.30706,
+        174.6141,
+        349.2282,
+        698.4565,
+        1396.913,
+        2793.826,
+        5587.652,
+    },
+    {
+        23.12465,
+        46.2493,
+        92.49861,
+        184.9972,
+        369.9944,
+        739.9888,
+        1479.978,
+        2959.955,
+        5919.911,
+    },
+    {
+        24.49971,
+        48.99943,
+        97.99886,
+        195.9977,
+        391.9954,
+        783.9909,
+        1567.982,
+        3135.963,
+        6271.927,
+    },
+    {
+        25.95654,
+        51.91309,
+        103.8262,
+        207.6523,
+        415.3047,
+        830.6094,
+        1661.219,
+        3322.438,
+        6644.875,
+    },
+    {
+        27.5,
+        55.0,
+        110.0,
+        220.0,
+        440.0,
+        880.0,
+        1760.0,
+        3520.0,
+        7040.0,
+    },
+    {
+        29.13524,
+        58.27047,
+        116.5409,
+        233.0819,
+        466.1638,
+        932.3275,
+        1864.655,
+        3729.31,
+        7458.62,
+    },
+    {
+        30.86771,
+        61.73541,
+        123.4708,
+        246.9417,
+        493.8833,
+        987.7666,
+        1975.533,
+        3951.066,
+        7902.133,
+    },
+};