10160163-week03

 week03

week03-1

劃出點線面

week03-2

新增亂數

亂數往哪裡跑

week03-3

新增很多點隨意移動

void setup(){

  size(500,500);

  for(int i=0;i<20;i++){

  x[i]=random(500);

  y[i]=random(500);

  dx[i]=random(-1,+1);//dx=random(-1,+1);

  dy[i]=random(-1,+1);//dy=random(-1,+1);

  }

}

float[] x=new float[20];//float x=250, y=250;

float[] y=new float[20];

float[] dx=new float[20];//float dx=1, dy=1;

float[] dy=new float[20];

void draw(){

  background(0);

  for(int i=0;i<20;i++){

  ellipse(x[i],y[i],5,5);

  x[i] += dx[i];

  y[i] += dy[i];

  if(x[i]<0 || x[i]>500)dx[i]=-dx[i];

  if(y[i]<0 || y[i]>500)dy[i]=-dy[i];

  }

}

week03-4

把點連起來

void setup(){

  size(500,500);

  for(int i=0;i<20;i++){

  x[i]=random(500);

  y[i]=random(500);

  dx[i]=random(-1,+1);//dx=random(-1,+1);

  dy[i]=random(-1,+1);//dy=random(-1,+1);

  }

}

float[] x=new float[20];//float x=250, y=250;

float[] y=new float[20];

float[] dx=new float[20];//float dx=1, dy=1;

float[] dy=new float[20];

void draw(){

  background(0);

  for(int i=0;i<20;i++){

  ellipse(x[i],y[i],5,5);

  for(int k=0;k<20;k++){

    stroke(255,0,0);

    if(dist(x[i],y[i],x[k],y[k])<100)

      line(x[i],y[i],x[k],y[k]);

  }

  x[i] += dx[i];

  y[i] += dy[i];

  if(x[i]<0 || x[i]>500)dx[i]=-dx[i];

  if(y[i]<0 || y[i]>500)dy[i]=-dy[i];

  }

}

week03-5

變更多點 點和線會根據遠近有深淺變化

void setup(){

  size(500,500);

  for(int i=0;i<N;i++){

  x[i]=random(500);

  y[i]=random(500);

  dx[i]=random(-1,+1);//dx=random(-1,+1);

  dy[i]=random(-1,+1);//dy=random(-1,+1);

  }

}

int N=40;

float[] x=new float[N];//float x=250, y=250;

float[] y=new float[N];

float[] dx=new float[N];//float dx=1, dy=1;

float[] dy=new float[N];

void draw(){

  background(0);

  for(int i=0;i<N;i++){

  ellipse(x[i],y[i],5,5);

  for(int k=0;k<N;k++){

    float d= dist(x[i],y[i],x[k],y[k]);

    stroke(2.55*(100-d));

    if(d<100)

      line(x[i],y[i],x[k],y[k]);

  }

  x[i] += dx[i];

  y[i] += dy[i];

  if(x[i]<0 || x[i]>500)dx[i]=-dx[i];

  if(y[i]<0 || y[i]>500)dy[i]=-dy[i];

  }

}

week03-6

增加一點吸引力

void setup(){

  size(500,500);

  for(int i=0;i<N;i++){

  x[i]=random(500);

  y[i]=random(500);

  dx[i]=random(-1,+1);//dx=random(-1,+1);

  dy[i]=random(-1,+1);//dy=random(-1,+1);

  }

}

int N=50;

float[] x=new float[N];//float x=250, y=250;

float[] y=new float[N];

float[] dx=new float[N];//float dx=1, dy=1;

float[] dy=new float[N];

void draw(){

  background(0);

  for(int i=0;i<N;i++){

  ellipse(x[i],y[i],5,5);

  for(int k=0;k<N;k++){

    float d= dist(x[i],y[i],x[k],y[k]);

    stroke(2.55*(100-d));

    if(d<100)

      line(x[i],y[i],x[k],y[k]);

      dx[i]+=(x[k]-x[i])*0.0000001;

      dy[i]+=(y[k]-y[i])*0.0000001;

  }

  x[i] += dx[i];

  y[i] += dy[i];

  if(x[i]<0 || x[i]>500)dx[i]=-dx[i];

  if(y[i]<0 || y[i]>500)dy[i]=-dy[i];

  }

}

week03-7

設定顏色

顏色可以閃爍

加入frameCount(顏色閃爍,像彩虹一樣)

week03-8

week03-9

void setup(){

  size(300,300);

  colorMode(HSB,360,100,100);

  chooseColor();

}

void mousePressed(){

  chooseColor();

}

int I,J;

float h,s,b,dh,ds,db;

void chooseColor(){

  h=random(360);

  s=random(50,100);

  b=random(50,100);

  I=int(random(5));

  J=int(random(5));

  dh=random(-10,+10);

  ds=random(-10,+10);

  db=random(-10,+10);

}

void draw(){

  background(203,63,65);

  for(int i=0;i<5;i++){

  for(int j=0;j<5;j++){

    if(i==1 && j==J) fill(h+dh,s+ds,b+db);

    fill(h,s,b);

    ellipse(30+j*60,30+i*60,60,60);

    }

  }

}