Click to randomize. Press “P” to toggle background painting. Press the spacebar to pause. Press “A” to toggle auto-randomizing. Press “C” to randomize colors. Press “S” to randomize the shape. Press “X” to randomize the number of axis. Press “+” and “-” to change the number of axis. Press “B” to clear the background. Press “D” to change the amount of decay when the background isn’t painting. Press “F” to show the frame rate.
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PFont font; Part part; int time = 1; int r1, r2, r3, r4; int numAxis = 1; color bgColor; boolean showsFPS = false; boolean doesPaint = true; boolean autoplay = true; boolean isPaused = false; ColorPalette cp; float spread = 5; float osc1, osc2; void setup() { size(940, 540); colorMode(HSB); background(0); strokeWeight(0.5); font = createFont("Helvetica", 24); bgColor = color(0, 10); randomize(); part = new Part(0, 0); } void draw() { if (!isPaused) { if (!doesPaint) { fill(bgColor); noStroke(); rect(0, 0, width, height); } if (showsFPS) displayFPS(); if (autoplay) { time++; if (time > 700) randomize(); } translate(width/2, height/2); noFill(); osc1 += 0.0011; osc2 += 0.0013; r1 = abs(sin(osc1) * 0.009) + 0.001; r2 = abs(sin(osc2) * 0.009) + 0.001; part.draw(); } } void randomize() { time = 1; if (doesPaint) background(0); randomizeColor(); randomizeShape(); randomizeAxis(); } void randomizeShape() { if (doesPaint) background(0); int bottom = 0.001; int top = 0.01; r1 = random(bottom, top); r2 = random(bottom, top); r3 = random(bottom, top); r4 = random(bottom, top); spread = random(1, 20); } void randomizeAxis() { if (doesPaint) background(0); numAxis = round(random(2, 30)); } void randomizeColor() { cp = new ColorPalette(); } void mouseClicked() { randomize(); autoplay = false; } void keyPressed() { if (key == 'f') showsFPS = !showsFPS; if (key == 'd') { float a = alpha(bgColor); if (a == 10) a = 40; else a = 10; bgColor = color(0, a); } if (key == 'p') doesPaint = !doesPaint; if (key == 'a') autoplay = !autoplay; if (key == ' ') isPaused = !isPaused; if (key == 'c') randomizeColor(); if (key == 's') randomizeShape(); if (key == 'x') randomizeAxis(); if (key == 'b') background(0); if (key == '=') { numAxis++; if (doesPaint) background(0); } if (key == '-') { numAxis--; if (doesPaint) background(0); } if (numAxis < 1) numAxis = 1; if (numAxis > 30) numAxis = 30; } void displayFPS() { textFont(font, 18); fill(255); String output = "fps="; output += (int) frameRate; text(output, 10, 30); } class ColorPalette { PGraphics pg; float w = 300; color[] allColors; ColorPalette() { createPalette(); allColors = new color[w]; for (int i=0; i<w; i++) { allColors[i] = pg.get(i, 0); } } color getColorAtRatio(float _ratio) { int index = floor(w * _ratio); return allColors[index]; } void createPalette() { pg = createGraphics(w, 1); pg.colorMode(HSB); pg.beginDraw(); pg.noStroke(); color baseColor = color(random(255), random(255, 255), random(255, 255)); pg.background(baseColor); int numColors = 6; for (int i=0; i<numColors; i++) { addColor(); } pg.endDraw(); } void addColor() { color c = color(random(255), random(0, 255), random(150, 255)); float pos = random(w); float size = w/4; for (int i=0; i<w; i++) { float ratio = 0; float d = abs(i-pos); if (d < size) { ratio = 1.0 - (d/size); } pg.fill(hue(c), saturation(c), brightness(c), (ratio)*255); pg.rect(i, 0, 1, 1); } } void draw() { image(pg, 0, height/2, width, 10); } } class Part { PVector pos[]; int trailLength = 100; float speed = 0.03; float o1, o2, o3, o4; Part(float _x, float _y) { pos = new PVector[trailLength]; for (int i=0; i<trailLength; i++) { pos[i] = new PVector(0, 0); } } void draw() { float step = radians(360/numAxis); float x, y; for (int i=0; i<trailLength; i++) { o1 += r1*speed; o2 += r2*speed; o3 += r3*speed; o4 += r4*speed; x = sin(o1 + i*spread*r1) * 250; y = cos(o2 + i*spread*r2) * 100; x += sin(o3 + i*spread*r3) * 250; y += cos(o4 + i*spread*r4) * 100; pos[i].x += (x - pos[i].x) * 0.1; pos[i].y += (y - pos[i].y) * 0.1; } for (int i=1; i<trailLength; i++) { stroke(cp.getColorAtRatio(i/trailLength)); pushMatrix(); for (int j=0; j<numAxis; j++) { rotate(step); line(pos[i].x, pos[i].y, pos[i-1].x, pos[i-1].y); } popMatrix(); } } } |