old ewi visualization thing

ewi_2/ewi_2.pde

@@ -0,0 +1,73 @@
+import themidibus.*;
+
+MidiBus myBus;
+int y = 0;
+float vel = 0;
+int MIN_NOTE = 36;
+int MAX_NOTE = 98;
+
+void setup() {
+  size(1440, 900, P2D);
+//  size(720, 820, P2D);
+  background(0);
+  myBus = new MidiBus(this, 0, -1);
+}
+
+void draw() {
+  background(0, 0.0, 0);
+
+  // if (countOff >= countOn) { return; }
+  colorMode(HSB, 12, 1.0, 1.0, 1.0);
+  noFill();
+  
+  int octave = y / 12;
+  float oct = norm(octave, 2, 8) * 0.5;
+
+  float hue = y % 12 + (2.0 * bend);
+  stroke(hue, 0.8, 0.8, vel);
+  strokeWeight(pow(vel, 1.3) * 80);
+  float ny = height - (norm(y, MIN_NOTE, MAX_NOTE) * height);
+  float dy = vel * bend * 120.0;
+  bezier(0, ny, 0.25 * width, ny - dy, 0.75 * width, ny - dy, width, ny); 
+}
+
+int countOn;
+void noteOn(int channel, int pitch, int velocity) {
+  vel = norm(velocity, 0, 127);
+  y = pitch;
+  countOn++;  
+  println("<on " + countOn + " channel:" + channel + " pitch:" + pitch + " velocity:" + velocity + ">");
+}
+void noteOff(int channel, int pitch, int velocity) {
+  countOn--;
+  if (pitch == y) {
+    vel = 0;
+  }
+  println("<off " + countOn + " channel:" + channel + " pitch:" + pitch + " velocity:" + velocity + ">");
+}
+
+void controllerChange(int channel, int number, int value) {
+  if (channel == 0 && number == 2) {
+    if (countOn > 0 || value == 0) {
+      vel = norm(value, 0, 127);
+    }
+    return;
+  }
+//  println("<cc " + " channel:" + channel + " number:" + number + " value:" + value + ">");  
+}
+
+float bend = 0.0;
+void rawMidi(byte[] data) { // You can also use rawMidi(byte[] data, String bus_name)
+  int status = (int)(data[0] & 0xFF);
+  switch (status) {
+  case 176: // breath velocity
+    return;
+  case 144: // noteOn
+    return;
+  case 128: // noteOff
+    return;
+  case 224: // pitch bend
+    bend = norm(data[1] & 127 | (data[2] & 127) << 7, 0, (1 << 14) - 1) * 2.0 - 1.0;
+    return;  
+  }
+}