week03 賴奕廷

 Week03

*step01

畫一個點

void setup(){

  size(500,500);

}

float x=250, y=250;

void draw(){

  ellipse(x,y,5,5);

}

線

void setup(){

  size(500,500);

}

float x=250, y=250;

float dx=1, dy=1;

void draw(){

  ellipse(x,y,5,5);

  x += dx;

  y+= dy;

}

*step02

讓點亂數移動 碰到邊緣反彈

void setup(){

  size(500,500);

  dx = random(-1,+1);

  dy = random(-1,+1);

}

float x=250, y=250;

float dx=1, dy=1;

void draw(){

  background(0);

  ellipse(x,y,5,5);

  x += dx;

  y+= dy;

  if(x<0 || x>500) dx= -dx;

  if(y<0 || x>500) dy= -dy;

}

弄出20個亂跑的點

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);

  dy[i] = random(-1,+1);

  }

}

float [] x = new float[20];

float [] y = new float[20];

float [] dx = new float[20];

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];

}

}

*step03

連線

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);

  dy[i] = random(-1,+1);

  }

}

float [] x = new float[20];

float [] y = new float[20];

float [] dx = new float[20];

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];

}

}

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);

  dy[i] = random(-1,+1);

  }

}

int N = 40;

float [] x = new float[N];

float [] y = new float[N];

float [] dx = new float[N];

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];

}

}

加吸引力，線會被吸走

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);

  dy[i] = random(-1,+1);

  }

}

int N = 40;

float [] x = new float[N];

float [] y = new float[N];

float [] dx = new float[N];

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])*0.00001;

       dy[i] +=(y[k]-y[i])*0.00001;

  }

  }

  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];

}

}

*step04

RGB漸變效果

void setup(){

  size(500,500);

  colorMode(HSB,360,100,100);

}

void draw(){

  background(frameCount%360,83,95);

}

漂亮的彩虹

size(400,400);

noStroke();

colorMode(HSB,400);

for(int i=0;i<400;i++){

  for(int j=0; j<400;j++){

    stroke(i,400,400);

    point(i,j);

  }

}

做一個其中一顆球會跟別的顏色不一樣的遊戲

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++){

      fill(h,s,b);

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

      else fill(h,s,b);

      ellipse(30+j*60, 30+i*60,60,60);

    }

  }

  }