commit 622b4185fe8e656ebb995d51a4dcae2162974c2b
Author: Mario Incandenza <mario.incandenza@autistici.org>
Date:   Tue May 17 10:03:07 2022 +0200

    initial

diff --git a/pom.xml b/pom.xml
new file mode 100755
index 0000000..3fb99c0
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>org.example</groupId>
+  <artifactId>processingLines</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>processingLines</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>1.7</maven.compiler.source>
+    <maven.compiler.target>1.7</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+
+    <dependency>
+      <groupId>org.processing</groupId>
+      <artifactId>core</artifactId>
+      <version>3.3.7</version>
+    </dependency>
+    <dependency>
+      <groupId>org.jogamp.gluegen</groupId>
+      <artifactId>gluegen-rt-main</artifactId>
+      <version>2.3.2</version>
+    </dependency>
+    <dependency>
+      <groupId>org.jogamp.jogl</groupId>
+      <artifactId>jogl-all-main</artifactId>
+      <version>2.3.2</version>
+    </dependency>
+    <dependency>
+      <groupId>net.compartmental.code</groupId>
+      <artifactId>minim</artifactId>
+      <version>2.2.2</version>
+    </dependency>
+
+  </dependencies>
+
+  <build>
+    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
+      <plugins>
+        <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
+        <plugin>
+          <artifactId>maven-clean-plugin</artifactId>
+          <version>3.1.0</version>
+        </plugin>
+        <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
+        <plugin>
+          <artifactId>maven-resources-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>3.8.0</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-surefire-plugin</artifactId>
+          <version>2.22.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-jar-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-install-plugin</artifactId>
+          <version>2.5.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-deploy-plugin</artifactId>
+          <version>2.8.2</version>
+        </plugin>
+        <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
+        <plugin>
+          <artifactId>maven-site-plugin</artifactId>
+          <version>3.7.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-project-info-reports-plugin</artifactId>
+          <version>3.0.0</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+</project>
diff --git a/src/main/java/org/example/ConcentricParticles.java b/src/main/java/org/example/ConcentricParticles.java
new file mode 100755
index 0000000..2f80af9
--- /dev/null
+++ b/src/main/java/org/example/ConcentricParticles.java
@@ -0,0 +1,294 @@
+package org.example;
+
+import ddf.minim.AudioInput;
+import ddf.minim.Minim;
+import ddf.minim.analysis.FFT;
+import processing.core.PApplet;
+import processing.core.PGraphics;
+import processing.core.PVector;
+
+import java.awt.*;
+import java.util.ArrayList;
+
+
+public class ConcentricParticles extends PApplet {
+
+
+    Attractor att = new Attractor(new PVector(0, 0));
+    float[] bgColor;
+    float[] strokeColor;
+    ArrayList<ArrayList<Particle>> cPoints = new ArrayList<ArrayList<Particle>>();
+    ArrayList<Particle> points = new ArrayList<Particle>();
+    int PARTICLE_MODE = 0;
+    int DEFORM_MODE = 1;
+    int mode = PARTICLE_MODE;
+    int dir = 1;
+    boolean reform = true;
+    int margin = 25;
+    float maxD;
+    PGraphics pg;
+
+    public void settings() {
+        size(900, 900, P3D);
+    }
+    public void setup() {
+
+        colorMode(HSB, 360, 100, 100, 100);
+        pg = createGraphics(1080, 1080, P3D);
+
+        pg.smooth(8);
+        pg.beginDraw();
+        pg.colorMode(HSB, 360, 100, 100, 100);
+        pg.strokeWeight(mode == PARTICLE_MODE ? 3 : 2);
+
+        bgColor = new float[]{250f,100f,10f};
+      pg.blendMode(ADD);
+        cursor(ARROW);
+        pg.background(bgColor[0],bgColor[1],bgColor[2]);
+        pg.noFill();
+        pg.endDraw();
+        int pixPerSegment = 5;
+        maxD = sqrt(pg.width * pg.width + pg.height * pg.height);
+        float baseHue = 200; // random(0, 280);
+        for (int r = 440; r >= 10; r -= 10) {
+            ArrayList<Particle> list = circlePoints(pg.width / 2, pg.height / 2, r, pixPerSegment);
+            for (Particle p : list) {
+                p.c = new float[]{baseHue + 80.0f * r / 440f, 60f, 100f}; //85, 100);
+            }
+            cPoints.add(list);
+            points.addAll(list);
+        }
+    }
+
+    public void draw() {
+        PVector mouse = new PVector(map(mouseX, 0, width, 0, pg.width), map(mouseY, 0, height, 0, pg.height));
+        att.pos = mouse;
+        int button = 0;
+        if (mousePressed) {
+            button = mouseButton;
+        }
+        pg.beginDraw();
+        pg.background(bgColor[0],bgColor[1],bgColor[2]);
+
+        if (mode == PARTICLE_MODE) {
+            if (mousePressed && mouseButton == LEFT) {
+                button = 1;
+            } else if (mousePressed && mouseButton == RIGHT) {
+                button = -1;
+            }
+            for (Particle p : points) {
+                PVector f = att.calcForce(p, button);
+                f.mult(10);
+                p.acc.add(f);
+                p.update();
+                pg.stroke(p.c[0],p.c[1],p.c[2]);
+                pg.point(p.x, p.y);
+            }
+        } else if (mode == DEFORM_MODE) {
+            switch(button) {
+                case LEFT:
+                    deform(points, true);
+                    break;
+                case RIGHT:
+                    deform(points, false);
+                    break;
+                case CENTER:
+                    deformRadial(points);
+                    break;
+                default:
+                    break;
+            }
+            for (Particle p : points) {
+                p.update();
+                pg.stroke(p.c[0],p.c[1],p.c[2]);
+                pg.point(p.x, p.y);
+            }
+        }
+
+        pg.fill(0, 100, 100, 100);
+        pg.noStroke();
+
+        pg.ellipse(mouse.x, mouse.y, 6f,6f);
+        pg.noFill();
+        pg.endDraw();
+        image(pg, 0, 0, width, height);
+        //println(frameCount / 60);
+        println(frameRate);
+    }
+    @Override
+    public void keyPressed() {
+        if (key == CODED) {
+            if (keyCode == UP) {
+                dir *= -1;
+            }
+            if (keyCode == DOWN) {
+                mode = 1 - mode;
+            }
+        }
+    }
+
+    void deform(ArrayList<Particle> set, boolean attract) {
+        Particle c = new Particle(map(mouseX, 0, width, 0, pg.width), map(mouseY, 0, height, 0, pg.height)); // new Particle(width / 2, height / 2);
+        float maxDiagonal = getMaxDist(c, set);
+        for (Particle p : set) {
+            float d = dist(p.x, p.y, c.x, c.y);
+            float dFactor = attract ? 1 - 0.25f * pow(1 - d / maxDiagonal, 4) : 1 + 0.25f * pow(1 - d / maxDiagonal, 4);
+            Particle temp = p.copy();
+            temp.sub(c);
+            temp.mult(dFactor);
+            temp.add(c);
+            p.x = temp.x;
+            p.y = temp.y;
+        }
+    }
+
+    void deformRadial(ArrayList<Particle> set) {
+        Particle c = new Particle(map(mouseX, 0, width, 0, pg.width), map(mouseY, 0, height, 0, pg.height));
+        float maxDiagonal = getMaxDist(c, set);
+        for (Particle p : set) {
+            float d = dist(p.x, p.y, c.x, c.y);
+            float dFactor = pow(1 - d / maxDiagonal, 2.5f);
+            rotateWithRespectTo(p, c, dir * dFactor * PI / 16);
+        }
+    }
+
+    float getMaxDist(Particle p, ArrayList<Particle> set) {
+        if (set.isEmpty()) {
+            return 0;
+        }
+        float maxDistSq = Float.MIN_VALUE;
+        for (Particle v : set) {
+            float dSq = v.copy().sub(p).magSq();
+            if (dSq > maxDistSq) {
+                maxDistSq = dSq;
+            }
+        }
+        return sqrt(maxDistSq);
+    }
+
+    void rotateWithRespectTo(Particle p, Particle v, float angle) {
+        p.sub(v);
+        p.rotate(angle);
+        p.add(v);
+    }
+
+    void rotateWithRespectTo(PVector p, PVector v, float angle) {
+        p.sub(v);
+        p.rotate(angle);
+        p.add(v);
+    }
+
+    ArrayList<Particle> linePoints(float x1, float y1, float x2, float y2, int pixPerSegment) {
+        float d = dist(x1, y1, x2, y2);
+        Particle a = new Particle(x1, y1);
+        Particle b = new Particle(x2, y2);
+        Particle diff = (Particle) b.copy().sub(a).normalize().mult(pixPerSegment);
+
+        int n = (int)(d / pixPerSegment);
+        ArrayList<Particle> points = new ArrayList<Particle>();
+        for (int i = 0; i <= n; i++) {
+            points.add((Particle) a.copy().add(diff.copy().mult(i)));
+        }
+        return points;
+    }
+
+    ArrayList<Particle> circlePoints(float x, float y, float r, int pixPerSegment) {
+        float c = 2 * PI * r;
+        int n = (int) (c / pixPerSegment);
+        float inc = 2 * PI / n;
+
+        ArrayList<Particle> points = new ArrayList<Particle>();
+        for (int i = 0; i < n; i++) {
+            float angle = i * inc;
+            points.add(new Particle(x + r * cos(angle), y + r * sin(angle)));
+        }
+        return points;
+    }
+    public static void main(String[] passedArgs) {
+        String[] appletArgs = new String[] { "ConcentricParticlesx" };
+        ConcentricParticles ms = new ConcentricParticles();
+        PApplet.runSketch(appletArgs,ms);
+    }
+
+
+    class Particle extends PVector {
+
+        PVector init;
+        PVector v;
+        float[] c;
+
+        PVector pos;
+        PVector vel;
+        PVector acc;
+
+        Particle(float x, float y) {
+            this.pos = new PVector(x, y);
+            this.vel = new PVector(0, 0);
+            this.acc = new PVector(0, 0);
+            this.x = x;
+            this.y = y;
+            this.init = new PVector(x, y);
+            this.v = new PVector(0, 0);
+        }
+
+        void update() {
+            if (mode == PARTICLE_MODE) {
+                vel.add(acc);
+                vel.limit(5);
+                checkBounds();
+                x += vel.x;
+                y += vel.y;
+                this.vel.mult(0.997f);
+                acc.mult(0);
+            }
+            if (reform) {
+                Particle curr = new Particle(x, y);
+                curr.lerp(init, 0.005f);
+                this.x = curr.x;
+                this.y = curr.y;
+            }
+        }
+
+        void checkBounds() {
+            if (x < margin || x > pg.width - margin) {
+                vel.x *= -1;
+            }
+            if (y < margin || y > pg.height - margin) {
+                vel.y *= -1;
+            }
+        }
+
+        public Particle copy() {
+            Particle p = new Particle(x, y);
+            p.init = this.init.copy();
+            return p;
+        }
+
+    }
+
+    class Attractor {
+
+        PVector pos;
+        boolean active;
+
+        Attractor(PVector pos) {
+            this.pos = pos;
+            active = false;
+        }
+
+        PVector calcForce(PVector otherPos, int charge) {
+            if (charge == 0) {
+                return new PVector(0, 0);
+            }
+            PVector vec = charge == 1 ? pos.copy().sub(otherPos) : otherPos.copy().sub(pos);
+            float magSq = vec.mag();
+            return vec.mult(500.0f / magSq).limit(5);
+        }
+
+        void show() {
+            fill(active ? color(0, 255, 0) : color(255, 0, 0));
+            ellipse(pos.x, pos.y, 30, 30);
+        }
+
+    }
+}
diff --git a/src/main/java/org/example/MySketch.java b/src/main/java/org/example/MySketch.java
new file mode 100755
index 0000000..6d54212
--- /dev/null
+++ b/src/main/java/org/example/MySketch.java
@@ -0,0 +1,87 @@
+package org.example;
+
+import ddf.minim.AudioInput;
+import ddf.minim.Minim;
+import ddf.minim.analysis.FFT;
+import processing.core.PApplet;
+import processing.core.PFont;
+
+
+public class MySketch extends PApplet {
+
+
+    Minim minim;
+    //AudioPlayer myAudio;
+    AudioInput myAudio;
+    FFT aFFT;
+
+    // Variables for FFT
+    int         delFFT 	= 11;
+    int         aM      = 70;
+    float       amp     = 30.0f;
+    float       aI     	= 0.2f;
+    float       aIa  		= aI;
+    float       aIStep 	= 0.35f;
+    float[]     aData   = new float[delFFT];
+
+
+    public void settings() {
+        fullScreen();
+    }
+   public  void setup() {
+        //fullScreen();
+        background(0);
+
+     //   textFont(mono, 14);
+        smooth();
+        minim   = new Minim(this);
+        // myAudio = minim.loadFile("music.mp3"); // must be in data folder
+        // myAudio.loop();
+        myAudio = minim.getLineIn(Minim.MONO);
+        aFFT = new FFT(myAudio.bufferSize(), myAudio.sampleRate());
+        aFFT.linAverages(delFFT);
+        aFFT.window(FFT.GAUSS);
+    }
+
+    public void draw() {
+        noStroke();
+        fill(0, 7);
+        rect(-10, -10, width+10, height+10);
+        aFFT.forward(myAudio.mix);
+        aDelData();
+        //println(aData);
+    }
+
+    void aDelData() {
+        String b = "[ ";
+        String d = "] ";
+
+        for (int i = 0; i < delFFT; ++i) {
+            stroke(255,50);
+            fill(233f,123f,98f);
+            float partI = (aFFT.getAvg(i) * amp) * aIa;
+            float tempIndexCon = constrain(partI, 0, aM);
+            rect(60 + (i*35), height - 80, 39, -partI);
+
+            fill(255);
+            text(b, 40 , height - 30);
+            text(d, width - 50, height - 30);
+            text( i, 60 + (i*35), height - 30);
+            aData[i] = tempIndexCon;
+            aIa += aIStep;
+        }
+        aIa = aI;
+    }
+
+    public void stop() {
+        myAudio.close();
+        minim.stop();
+        super.stop();
+    }
+
+    public static void main(String[] passedArgs) {
+        String[] appletArgs = new String[] { "MySketch" };
+        MySketch ms = new MySketch();
+        PApplet.runSketch(appletArgs,ms);
+    }
+}