126 lines
2.2 KiB
Plaintext
126 lines
2.2 KiB
Plaintext
// Based on Listing 5.1, Generative Art
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float xstart, xnoise, ystart, ynoise, tnoise;
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float x_end1, y_end1;
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float x_end2, y_end2;
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int num = 1;
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Walker[] walkers = new Walker[num];
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float magnitude;
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float angle;
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float noise_speed;
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int width = 500;
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int height= 500;
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int cache_len = width * height;
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float[] temp_xy;
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float[][] mag_angle_list = new float[250000][2];
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int j,k;
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void setup() {
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size(500, 500);
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background(255);
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xstart = random(10);
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ystart = random(10);
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frameRate(25);
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textSize(30);
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for (int i = 0; i < num; i++){
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walkers[i] = new Walker(i);
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}
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}
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void draw() {
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background(255);
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// println(frameRate);
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// xstart += 0.01;
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// ystart += 0.01;
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ynoise = ystart;
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j = 0;
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for (int y = 1; y <= height; y+=1) {
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ynoise += 0.01;
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xnoise = xstart;
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for (int x = 1; x <= width; x+=1) {
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xnoise += 0.01;
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angle = noise(xnoise, ynoise, tnoise) * 3.14 * 2;
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x_end1 = (1 * cos(angle)) + x;
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y_end1 = (1 * sin(angle)) + y;
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mag_angle_list[j][0] = x_end1;
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mag_angle_list[j][1] = y_end1;
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j = j + 1;
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}
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}
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for (int i = 0; i < num; i++){
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temp_xy = walkers[i].getLocation();
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// lookup mechanism
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int idx = (int)(((temp_xy[1] - 1) * width) + temp_xy[0]);
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float next_x = mag_angle_list[idx][0];
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float next_y = mag_angle_list[idx][1];
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walkers[i].update(next_x,next_y);
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print(next_x);
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}
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}
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class Walker {
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// fields
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String s;
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float x, y, a;
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float tx, ty, ta;
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color c;
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// constructor
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Walker(int i) {
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s = nf(i);
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x = random(width);
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y = random(height);
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tx = random(1000);
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ty = random(1000);
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ta = random(1000);
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c = color(2,2,2);
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// c = color(random(255),random(255),random(255));
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}
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float[] getLocation(){
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return new float[]{x,y};
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}
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// method
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void update(float next_x, float next_y) {
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pushMatrix();
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translate(x, y);
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rotate(a);
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fill(c, 100);
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text(s, 0, 0);
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popMatrix();
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tx += 0.01;
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ty += 0.01;
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ta += 0.001;
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x += next_x;
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y += next_y;
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a += 0.1-0.05;
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if (x<0)
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x += width;
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else if (x>width)
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x -= width;
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if (y<0)
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y += height;
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else if (y>height)
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y -= height;
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}
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}
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