2025年5月15日 星期四

week03

 //week03_01_P3D_translate_rotateY_radians_box

void setup(){

  size(400, 400, P3D);

}

void draw(){

  background(128);

  translate(mouseX,mouseY);

  rotateY(radians(frameCount));

  box(200);

}

//week03_02_2D_point_line_rect_ellipse

size(400, 400);

stroke(255, 0, 0);

strokeWeight(8);

point(200, 200);

line(200, 0, 400, 100);

rect(50, 50, 100, 100);


fill(255, 255, 0);

ellipse(300, 200, 50, 80);


//week03_03_rect_corners

size(400, 400);

rect(50, 50, 100, 100);

rect(50, 200, 100, 100, 20);

rect(200, 50, 100, 100, 10, 20, 30, 40);


//week03_03_rect_corners

size(400, 400);

rect(50, 50, 100, 100);

rect(50, 200, 100, 100, 20);

rect(200, 50, 100, 100, 10, 20, 30, 40);

// week03_04_mousePressed_stroke_line

void setup(){

  size(500, 500);

}

void draw(){

  //background(255);

  fill(255, 0, 0);

  rect(0, 0, 50, 50);

  fill(255, 255, 0);

  rect(0, 50, 50, 50);

  fill(0, 255, 0);

  rect(0, 100, 50, 50);

  fill(0, 0, 255);

  rect(0, 150, 50, 50);

  if(mousePressed)line(mouseX, mouseY, pmouseX, pmouseY);

}

void mousePressed(){

  if(mouseX<50){

    if(mouseY<50) stroke(255, 0, 0);

    else if(mouseY<100) stroke(255, 255, 0);

    else if(mouseY<150) stroke(0, 255, 0);

    else if(mouseY<200) stroke(0, 0, 255);

  }

}


 //week03_04b__stroke_strokeweight-fill

void setup(){

  size(500, 500);

}

void draw(){

  //background(255);

  stroke(0);

  fill(255, 0, 0);

  rect(0, 0, 50, 50);

  fill(255, 255, 0);

  rect(0, 50, 50, 50);

  fill(0, 255, 0);

  rect(0, 100, 50, 50);

  fill(0, 0, 255);

  rect(0, 150, 50, 50);

  stroke(myStroke);

  if(mousePressed);line(mouseX, mouseY, pmouseX, pmouseY);

}

color myStroke;

void mousePressed(){

  if(mouseX<50){

    if(mouseY<50) myStroke=color(255, 0, 0);

    else if(mouseY<100) myStroke=color(255, 255, 0);

    else if(mouseY<150) myStroke=color(0, 255, 0);

    else if(mouseY<200) myStroke=color(0, 0, 255);

  }

}


// week03_05_mouse_cat_x_y

void setup(){

  size(400, 400);

}

float x, y;

void draw(){

  background(255);

  ellipse(mouseX, mouseY, 40, 20);

  ellipse(x, y, 40, 40);

  x = (x*14+mouseX) / 15;

  y = (y*14+mouseY) / 15;

}  

// week03_06_lerp_frameCount

void setup(){

  size(400, 400);

}

float startX = 10, startY = 10;

float stopX = 390, stopY = 390;

void draw(){

  ellipse(startX, startY, 10, 10);

  ellipse(stopX, stopY, 10, 10);

  float midX = lerp(startX, stopX, frameCount / 200.0);

  float midY = lerp(startY, stopY, frameCount / 200.0);

  ellipse(midX, midY, 10, 10);

}  


// week03_07_bezier_curve

size(400, 400);

int x1 = 340, x2 = 40, x3 = 360, x4 = 60;

int y1 = 80, y2 = 40, y3 = 360, y4 = 320;

line(x1, y1, x2, y2);

line(x3, y3, x4, y4);

bezier(x1, y1, x2, y2, x3, y3, x4, y4);


// week03_08_bezier_equation

void setup(){

  size(400, 400);

}  

int x1 = 340, x2 = 40, x3 = 360, x4 = 60;

int y1 = 80, y2 = 40, y3 = 360, y4 = 320;

void draw(){

  background(255);

  line(x1, y1, x2, y2);

  line(x3, y3, x4, y4);

  bezier(x1, y1, x2, y2, x3, y3, x4, y4);

  float t = frameCount / 200.0;

  float t2 = 1 - t;

  float x = x1*t2*t2*t2 + 3*x2*t*t2*t2 + 3*x3*t*t*t2 + x4*t*t*t;

  float y = y1*t2*t2*t2 + 3*y2*t*t2*t2 + 3*y3*t*t*t2 + y4*t*t*t;

  ellipse(x, y, 10, 10);

}  

// week03_08b_bezier_equation

void setup(){

  size(400, 400);

}  

int x1 = 120, x2 = 320, x3 = 320, x4 = 120;

int y1 = 80, y2 = 20, y3 = 300, y4 = 300;

void draw(){

  background(255);

  line(x1, y1, x2, y2);

  line(x3, y3, x4, y4);

  bezier(x1, y1, x2, y2, x3, y3, x4, y4);

  float t = frameCount / 200.0;

  float t2 = 1 - t;

  float x = x1*t2*t2*t2 + 3*x2*t*t2*t2 + 3*x3*t*t*t2 + x4*t*t*t;

  float y = y1*t2*t2*t2 + 3*y2*t*t2*t2 + 3*y3*t*t*t2 + y4*t*t*t;

  ellipse(x, y, 10, 10);

}  


// week03_09_3D_random_random_point

float [] x = new float[1000];

float [] y = new float[1000];

void setup(){

  size(400, 400, P3D);

  for(int i=0; i<1000; i++){

    x[i] = random(400);

    y[i] = random(400);

  }  

}

void draw(){

  background(0);

  stroke(255);

  for(int i=0; i<1000; i++){

    point(x[i], y[i]);

  }  

}  

  

// week03_10_3D_random_random_randrom_point_translate

float [] x = new float[5000];

float [] y = new float[5000];

float [] z = new float[5000];

void setup(){

  size(400, 400, P3D);

  for(int i=0; i<1000; i++){

    x[i] = random(400);

    y[i] = random(400);

    z[i] = random(-400,400);

  }  

}

void draw(){

  background(0);

  stroke(255);

  translate(0, 0, mouseY);

  for(int i=0; i<5000; i++){

    point(x[i], z[i]);

  }  

}  


// week03_11_3D_sphere_

void setup(){

  size(400, 400, P3D);

}

void draw(){

  background(128);

  lights();

  translate(mouseX, mouseY);

  rotateY(radians(frameCount));

  sphere(200);

}  

  

// week03_12_3D_sphere_translate

void setup(){

  size(400, 400, P3D);

}

void draw(){

  background(128);

  lights();

  translate(mouseX, mouseY);

  rotateY(radians(frameCount));

  sphere(200);

}  

  


  // week03_13_3D_pushMatrix_translate_sphere_popMatrix

void setup(){

  size(600, 400, P3D);

}

void draw(){

  background(128);

  lights();

  

  pushMatrix();

  translate(300, 100);

  sphere(100);

  popMatrix();

  pushMatrix();

  translate(100, 100);

  sphere(100);

  popMatrix();

}  

  


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