HSY-week03

 //week03-02

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);

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//week03-3

size(400,400);

rect(50,50,100,100);

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

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

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//week03-4

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);

  }

}

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//week03-5

void setup(){

  size(400,400);

}

float x,y;

void draw(){

  background(255);

  ellipse(x,y,40,40);

  ellipse(mouseX,mouseY,40,20);

  x = (x*14 + mouseX) / 15;

  y = (y*14 + mouseY) / 15;

}

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//week03-6

void setup(){

  size(400,400);

}

float startX = 10, startY = 10;

float stopX = 390, stopY = 290;

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);

}

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//week03-7

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);

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//week03-8

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);

}

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//week03-9

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<5000; 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],y[i]);

  }

}

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//week03-12

void setup(){

  size(400,400,P3D);

}

void draw(){

  background(128);

  lights();

  translate(mouseX,mouseY);

  rotateY(radians(frameCount));

  sphere(200);

}

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//week03-13

void setup(){

  size(600,400,P3D);

}

void draw(){

  background(128);

  lights();

  pushMatrix();//備份矩陣

  sphere(100);

  popMatrix();//還原矩陣

  //有備份+還原矩陣就不會出錯

  pushMatrix();

  translate(100,100);

  sphere(100);

  popMatrix();

}