add code

midi_gh.pde

@@ -0,0 +1,75 @@
+import themidibus.*;
+
+MidiBus myBus;
+ArrayList<PVector> squares;
+ArrayList<Integer> velocities;
+color[] pitchColors;
+
+void setup() {
+  size(400, 400);
+  squares = new ArrayList<PVector>();
+  velocities = new ArrayList<Integer>();
+  MidiBus.list();
+  myBus = new MidiBus(this, 2, 3);
+  
+  pitchColors = new color[128];
+  for (int pitch = 0; pitch < 128; pitch++) {
+    if (pitch == 36){
+      pitchColors[pitch] = color(255, 255, 255);
+    }
+    if (pitch == 38){
+      pitchColors[pitch] = color(255, 0, 0);
+    }
+    if (pitch == 48){
+      pitchColors[pitch] = color(0, 0, 255);
+    }
+    if (pitch == 45){
+      pitchColors[pitch] = color(0, 255, 0);
+    }
+    if (pitch == 46){
+      pitchColors[pitch] = color(205, 85, 0);
+    }
+    if (pitch == 49){
+      pitchColors[pitch] = color(255, 255, 0);
+    }
+  }
+} 
+
+void draw() {
+  background(0);
+  
+  for (int i = 0; i < squares.size(); i++) {
+    PVector square = squares.get(i);
+    int pitch = (int) square.z;
+    int velocity = velocities.get(i);
+    fill(pitchColors[pitch]);
+    rect(square.x, square.y, velocity, velocity);
+  }
+}
+
+void noteOn(int channel, int pitch, int velocity) {
+  println("--------");
+  println("Channel: "+channel, "Pitch: "+pitch, "Velocity: "+velocity);
+  if (pitch == 36 || pitch == 38 || pitch == 48 || pitch == 45 || pitch == 46 || pitch == 49) {
+    squares.add(new PVector(random(width), random(height), pitch));
+    velocities.add(velocity);
+  }
+}
+
+void noteOff(int channel, int pitch, int velocity) {
+  println("--------");
+  println("Channel: "+channel, "Pitch: "+pitch, "Velocity: "+velocity);
+  if (pitch == 36 || pitch == 38 || pitch == 48 || pitch == 45 || pitch == 46 || pitch == 49) {
+    for (int i = squares.size() - 1; i >= 0; i--) {
+      if (squares.get(i).z == pitch) {
+        squares.remove(i);
+        velocities.remove(i);
+      }
+    }
+  }
+}
+
+void controllerChange(int channel, int number, int value) {
+  println("--------");
+  println("Channel: "+channel, "Number: "+number, "Value: "+value);
+}