1 files changed, 77 insertions, 0 deletions
diff --git a/Buttons.ino b/Buttons.ino
new file mode 100644
index 0000000..ecc209f
--- /dev/null
+++ b/Buttons.ino
@@ -0,0 +1,77 @@
+void readDigitalButtons() {
+  if (diagnostics == 1) {
+    Serial.println();
+  }
+  // Button Deck
+  for (int rowIndex = 0; rowIndex < rowCount; rowIndex++)  // Iterate through each of the row pins on the multiplexing chip.
+  {
+    digitalWrite(m1p, rowIndex & 1);
+    digitalWrite(m2p, (rowIndex & 2) >> 1);
+    digitalWrite(m4p, (rowIndex & 4) >> 2);
+    digitalWrite(m8p, (rowIndex & 8) >> 3);
+    for (byte columnIndex = 0; columnIndex < columnCount; columnIndex++)  // Now iterate through each of the column pins that are connected to the current row pin.
+    {
+      byte columnPin = columns[columnIndex];                              // Hold the currently selected column pin in a variable.
+      pinMode(columnPin, INPUT_PULLUP);                                   // Set that row pin to INPUT_PULLUP mode (+3.3V / HIGH).
+      byte buttonNumber = columnIndex + (rowIndex * columnCount);         // Assign this location in the matrix a unique number.
+      delayMicroseconds(10);                                              // Delay to give the pin modes time to change state (false readings are caused otherwise).
+      previousActiveButtons[buttonNumber] = activeButtons[buttonNumber];  // Track the "previous" variable for comparison.
+      byte buttonState = digitalRead(columnPin);                          // (don't)Invert reading due to INPUT_PULLUP, and store the currently selected pin state.
+      if (buttonState == LOW) {
+        if (diagnostics == 1) {
+          Serial.print("1");
+        } else if (diagnostics == 2) {
+          Serial.println(buttonNumber);
+        }
+        if (!previousActiveButtons[buttonNumber]) {
+          // newpress time
+          activeButtonsTime[buttonNumber] = millis();
+        }
+        // TODO: Implement debounce?
+        activeButtons[buttonNumber] = 1;
+      } else {
+        // Otherwise, the button is inactive, write a 0.
+        if (diagnostics == 1) {
+          Serial.print("0");
+        }
+        activeButtons[buttonNumber] = 0;
+      }
+      // Set the selected column pin back to INPUT mode (0V / LOW).
+      pinMode(columnPin, INPUT);
+    }
+  }
+}
+
+void playNotes() {
+  for (int i = 0; i < elementCount; i++)  // For all buttons in the deck
+  {
+    if (activeButtons[i] != previousActiveButtons[i])  // If a change is detected
+    {
+      if (activeButtons[i] == 1)  // If the button is active (newpress)
+      {
+        if (currentLayout[i] < 128) {
+          strip.setPixelColor(i, strip.ColorHSV((currentLayout[i] % 12) * 5006, 255, 255));
+          noteOn(midiChannel, (currentLayout[i] + octave) % 128, midiVelocity);
+        } else {
+          commandPress(currentLayout[i]);
+        }
+      } else {
+        // If the button is inactive (released)
+        if (currentLayout[i] < 128) {
+          setLayoutLED(i);
+          noteOff(midiChannel, (currentLayout[i] + octave) % 128, 0);
+        } else {
+          commandRelease(currentLayout[i]);
+        }
+      }
+    }
+  }
+}
+
+void heldButtons() {
+  for (int i = 0; i < elementCount; i++) {
+    if (activeButtons[i]) {
+      //if (
+    }
+  }
+}
\ No newline at end of file