Made Some Changes Trying Techno

src/technomaker/BeatMaker.java

@@ -11,8 +11,9 @@ import javax.sound.midi.Track;
 public class BeatMaker {
 	Sequence s;
 	Track t;
+	private int drum = 13;
 
-	public BeatMaker(Sequence s) throws InvalidMidiDataException {
+	public BeatMaker(Sequence s, int speed) throws InvalidMidiDataException {
 		this.s = s;
 		t = s.createTrack();
 
@@ -25,7 +26,7 @@ public class BeatMaker {
 
 		// **** set tempo (meta event) ****
 		MetaMessage mt = new MetaMessage();
-		byte[] bt = { 0x10, (byte) 0x00, 0x00 };
+		byte[] bt = { (byte) speed, (byte) 0x00, 0x00 };
 		mt.setMessage(0x51, bt, 3);
 		me = new MidiEvent(mt, (long) 0);
 		t.add(me);
@@ -54,13 +55,15 @@ public class BeatMaker {
 
 	private void generateDrums() throws InvalidMidiDataException {
 
-		int b1 = (int) (Math.random() * 3);
+		// int b1 = (int) (Math.random() * 3);
-		int b2 = (int) (Math.random() * 3);
+		// int b2 = (int) (Math.random() * 3);
+		int b1 = 0;
+		int b2 = 2;
 
 		for (int i = 0; i < 100; i++) {
 			// **** set instrument to Piano ****
 			ShortMessage mm = new ShortMessage();
-			mm.setMessage(ShortMessage.PROGRAM_CHANGE, 1, 118, 0x00);
+			mm.setMessage(ShortMessage.PROGRAM_CHANGE, 1, drum , 0x00);
 			MidiEvent me = new MidiEvent(mm, (long) 0);
 			t.add(me);
 

src/technomaker/Main.java

@@ -3,11 +3,11 @@ package technomaker;
 public class Main {
 
 	public static void main(String[] args) {
-		new TechnoMaker().save("test1.mid");
+		new TechnoMaker(8).save("test1.mid");
 		try {
-			Process p = Runtime.getRuntime().exec("\"C:\\Program Files\\VideoLAN\\VLC\\vlc.exe\" D:\\spigotworkspace\\TenchnoMaker\\test1.mid");
+//			Process p = Runtime.getRuntime().exec("\"C:\\Program Files\\VideoLAN\\VLC\\vlc.exe\" D:\\spigotworkspace\\TenchnoMaker\\test1.mid");
-			Thread.sleep(41*1000);
+//			Thread.sleep(120*1000);
-			p = Runtime.getRuntime().exec("taskkill /IM \"vlc.exe\" /F");
+//			p = Runtime.getRuntime().exec("taskkill /IM \"vlc.exe\" /F");
 		} catch (Exception e) {
 			
 		}

src/technomaker/MelodyMaker.java

@@ -1,5 +1,7 @@
 package technomaker;
 
+import java.util.Random;
+
 import javax.sound.midi.InvalidMidiDataException;
 import javax.sound.midi.MetaMessage;
 import javax.sound.midi.MidiEvent;
@@ -12,8 +14,11 @@ public class MelodyMaker {
 
 	Sequence s;
 	Track t;
+	int instrument = 80 + (int) (Math.random() * 7);
+	int instrumentR = 80 + (int) (Math.random() * 7);
+	private int ton = 60;
 
-	public MelodyMaker(Sequence s) throws Exception {
+	public MelodyMaker(Sequence s, int speed) throws Exception {
 		this.s = s;
 		t = s.createTrack();
 
@@ -26,7 +31,7 @@ public class MelodyMaker {
 
 		// **** set tempo (meta event) ****
 		MetaMessage mt = new MetaMessage();
-		byte[] bt = { 0x10, (byte) 0x00, 0x00 };
+		byte[] bt = { (byte) speed, (byte) 0x00, 0x00 };
 		mt.setMessage(0x51, bt, 3);
 		me = new MidiEvent(mt, (long) 0);
 		t.add(me);
@@ -54,24 +59,36 @@ public class MelodyMaker {
 	}
 
 	private void generateMelody() throws Exception {
-		for (int i = 0; i < 10; i++)
+		generateRefrain();
-			addStrophe(40 * i);
+		addStrophe(40 * 0);
+		addRefrain(40 * 1);
+		addStrophe(40 * 2);
+		addStrophe(40 * 3);
+		addRefrain(40 * 4);
+		addStrophe(40 * 5);
+		addRefrain(40 * 6);
+		addStrophe(40 * 7);
+//		for (int i = 0; i < 8; i++)
+//			addRefrain(40 * i);
 	}
 
 	private void addStrophe(int offset) throws Exception {
 
-		int variation = 1 + (int) (Math.random() * 6);
+		int variation = 1 + (int) (Math.random() * 3);
 
-		int ton = 60;
 		for (int i = 0; i < 40;) {
 
 			i += 1 + Math.pow(Math.random() * 3, 2) * 0.3;
 
-			ton += (int) (Math.random() * (variation * 2 + 1)) - variation;
+			ton += new Random().nextInt(variation * 2 + 1) - variation;
+			if (ton <= 0)
+				ton = 0;
+			if (ton >= 128)
+				ton = 127;
 
 			// **** set instrument to Piano ****
 			ShortMessage mm = new ShortMessage();
-			mm.setMessage(ShortMessage.PROGRAM_CHANGE, (int) (Math.random()*100), 0x00);
+			mm.setMessage(ShortMessage.PROGRAM_CHANGE, instrument, 0x00);
 			MidiEvent me = new MidiEvent(mm, (long) 0 + offset);
 			t.add(me);
 
@@ -89,4 +106,56 @@ public class MelodyMaker {
 		}
 	}
 
+	ShortMessage[] refrainOn = new ShortMessage[40];
+	ShortMessage[] refrainOff = new ShortMessage[40];
+	int[] tonLänge = new int[40];
+
+	private void generateRefrain() throws InvalidMidiDataException {
+		int variation = 1 + (int) (Math.random() * 3);
+
+		for (int i = 0; i < 39;) {
+			i += 1 + Math.random() * 2;
+
+			ton += new Random().nextInt(variation * 2 + 1) - variation;
+			if (ton <= 0)
+				ton = 0;
+			if (ton >= 128)
+				ton = 127;
+			ShortMessage mm = new ShortMessage();
+			mm.setMessage(ShortMessage.NOTE_ON, ton, 127);
+			ShortMessage mm2 = new ShortMessage();
+			mm2.setMessage(ShortMessage.NOTE_OFF, ton, 127);
+			if (i >= 40)
+				i = 39;
+			refrainOn[i] = mm;
+			refrainOff[i] = mm2;
+			tonLänge[i] = i;
+		}
+	}
+
+	private void addRefrain(int offset) throws Exception {
+
+		for (int i = 0; i < 40; i++) {
+
+			// **** set instrument to Piano ****
+			ShortMessage mm = new ShortMessage();
+			mm.setMessage(ShortMessage.PROGRAM_CHANGE, instrumentR, 0x00);
+			MidiEvent me = new MidiEvent(mm, (long) 0 + offset);
+			t.add(me);
+
+			if (refrainOn[i] == null) {
+				System.out.println("exit"+i);
+				continue;
+			}
+
+			// **** note on - middle C ****
+			me = new MidiEvent(refrainOn[i], (long) i + offset);
+			t.add(me);
+			// **** note off - middle C - 120 ticks later ****
+			me = new MidiEvent(refrainOff[i], (long) tonLänge[i] + offset);
+			t.add(me);
+
+		}
+	}
+
 }

src/technomaker/TechnoMaker.java

@@ -12,13 +12,15 @@ public class TechnoMaker {
 	Sequence s;
 	BeatMaker bm;
 	MelodyMaker mm;
+	int speed;
 	
-	public TechnoMaker() {
+	public TechnoMaker(int speed) {
+		this.speed = speed;
 		try {
 			s = new Sequence(Sequence.PPQ, 4);
 			Track t = s.createTrack();
-			mm = new MelodyMaker(s);
+			mm = new MelodyMaker(s,this.speed);
-			bm = new BeatMaker(s);
+			bm = new BeatMaker(s,this.speed);
 		} catch (Exception e) {
 			e.printStackTrace();
 		}