11160906-互動2

001.

 void setup() {

  size(400, 400);

}

void draw() {

  fill(#FFDC0F);

  background(255);

  //ellipse(50,50,100,100);

  float a =radians(mouseX);

  for (int x=0; x<400; x+=100) {

    for (int y=0; y<400; y+=100) {

      arc(x+50, y+50, 100, 100, 0+a, PI*2-a, PIE);

    }

  }

}

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002.

void setup() {

  size(400, 400);

}

void draw() {

  fill(#FFDC0F);

  background(255);

  //ellipse(50,50,100,100);

  float a = frameCount % 180;

  if(a<45) a = radians(a);

  else if(a<90) a = radians(90-a);

  else if(a<135) a = radians(a-90);

  else if(a<180) a = radians(180-a);

  arc(200, 200, 300, 300, 0+a, PI*2-a,PIE);

}

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003.

void setup() {

  size(400, 400);

}

void draw() {

  fill(#FFDC0F);

  background(255);

  //ellipse(50,50,100,100);

  //float a =radians(mouseX);

  for (int x=0; x<400; x+=100) {

    for (int y=0; y<400; y+=100) {

      float a = frameCount % 180;

      if (a<45) a = radians(a);

      else if (a<90) a = radians(90-a);

      else if (a<135) a = radians(a-90);

      else if (a<180) a = radians(180-a);

      arc(x+50, y+50, 100, 100, 0+a, PI*2-a, PIE);

    }

  }

}

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004.

void setup() {

  size(400, 400);

}

int x = 200, y = 200;

void draw() {

  fill(#FFDC0F);

  background(255);

  if (keyPressed &&keyCode==RIGHT) x++;

  if (keyPressed &&keyCode==LEFT) x--;

  if (keyPressed &&keyCode==UP) y--;

  if (keyPressed &&keyCode==DOWN) y++;

  ellipse(x, y, 100, 100);

}

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005.

void setup() {

  size(400, 400);

}

void draw() {

  fill(#FFDC0F);

  background(255);

  //ellipse(50,50,100,100);

  float a = frameCount % 180;

  float b =radians(mouseX);

  if (a<45) a = radians(a);

  else if (a<90) a = radians(90-a);

  else if (a<135) a = radians(a-90);

  else if (a<180) a = radians(180-a);

  arc(200, 200, 300, 300, b+0+a, b+PI*2-a, PIE);

}

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006.

void setup() {

  size(400, 400);

}

float x= 200, y=200, d=0;

void draw() {

  fill(#FFDC0F);

  background(255);

  //ellipse(50,50,100,100);

  float a = frameCount % 180;

  float b =radians(mouseX);

  if (a<45) a = radians(a);

  else if (a<90) a = radians(90-a);

  else if (a<135) a = radians(a-90);

  else if (a<180) a = radians(180-a);

  arc(x, y, 100, 100, d+0+a, d+PI*2-a, PIE);

}

void keyPressed() {

  if (keyPressed &&keyCode==RIGHT) {

    x+=4;

    d = PI/2*0;

  }

  if (keyPressed &&keyCode==LEFT) {

    x-=4;

    d = PI/2*2;

  }

  if (keyPressed &&keyCode==UP) {

    y-=4;

    d = PI/2*3;

  }

  if (keyPressed &&keyCode==DOWN) {

    y+=4;

    d = PI/2*1;

  }

}

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007.

void setup() {

  size(400, 400);

}

int x= 200, y=200, d=0;

void draw() {

  fill(#FFDC0F);

  background(255);

  //ellipse(50,50,100,100);

  float a = radians(abs(frameCount % 90 -45));

  int [] dx ={1, 0, -1, 0};

  int [] dy ={0, 1, 0, -1};

  x +=dx[d];

  y +=dy[d];

  arc(x, y, 100, 100, PI/2*d+a, PI/2*d+PI*2-a, PIE);

}

void keyPressed() {

  if (keyPressed &&keyCode==RIGHT) d=0;

  if (keyPressed &&keyCode==LEFT) d=2;

  if (keyPressed &&keyCode==UP) d=3;

  if (keyPressed &&keyCode==DOWN) d=1;

}