追加課題雛型

3D空間上で沢山の図形を動かす

float angleX = 0;
float angleY = 0;
float angleZ = 0;
float [] x = new float[20];
float [] y = new float[20];
float [] z = new float[20];
float [] vx = new float[20];
float [] vy = new float[20];
float [] vz = new float[20];  
void setup() {  
  size(400, 400, P3D);
  fill(255, 255, 255);

for (int i = 0; i < x.length; i++) {
    x[i] = random(400);
    y[i] = random(400);
    z[i] = random(100);
    vx[i] = random(3)-1.5;
    vy[i] = random(3)-1.5; 
    vz[i] = random(3)-1.5;
  }
}
void draw() {
  background(0);
  angleX += 1;
  angleY += 2;
  angleZ += 0.5;  
  for (int i = 0; i < x.length; i++) {
    enkeiMethod(x[i], y[i], z[i]);
    x[i] += vx[i];
    if (x[i] < 0 || x[i] > width) {
      vx[i] *= -1;
    }
    y[i] += vy[i];
    if (y[i] < 0 || y[i] > height) {
      vy[i] *= -1;
    }
    z[i] += vz[i];
    if (z[i] < -100 || z[i] > 100) {
      vz[i] *= -1;
    }
  }
}
void enkeiMethod(float x, float y, float z) {
  pushMatrix();
  translate(x, y, z);
  scale(0.1);
  for (int j = 0; j < 10; j++) {
    for (int i = 0; i < 10; i++) {
      rect(0, 0, 100, 50);
      rotateZ(radians(36));
    }
    rotateY(radians(36));
  }
  popMatrix();
}