week14我網頁過了

 // week14_01_draw_line_void_mouseDragged_mouseButton_LEFT_RIGHT

void setup() {

  size(500, 500);

}

int x =-1, y=-1;

void draw() {

  if (x !=-1) {

    ellipse(x, y, 1, 1);

    y++;

  }

}

void mouseDragged() {

  if (mouseButton == LEFT) line(mouseX, mouseY, pmouseX, pmouseY);

  if (mouseButton == RIGHT) {

    x  = mouseX;

    y = mouseY;

  }

}

// week14_02_draw_lines_loadPixels_pixels_updatePixels

void setup() {

  size(500, 500);

  background(255);//背景設成白色

}

void draw() {

  //pixeis

  loadPixels();//取出畫面的像素

  //println(pixels[0]);//白色是-1 其實是color(255,255,255,255)

  for (int i=0; i<width*height; i++) {// 全部的點，都去尋一下色彩

    if (pixels[i] != -1) pixels[i] = color(random(255), random(255), random(255));

  }// 如果不是白色 就是有畫面碰到的pixels，都會變成亂數的彩色

  updatePixels();// 若有修改，要再放回去

}

void mouseDragged() {

  if (mouseButton==LEFT) {// 左鍵dragged拖曳時

    line(mouseX, mouseY, pmouseX, pmouseY);//本來的線，是灰黑色，不是白色

  }

}

// week14_03_draw_lines_rain_PImage_createImage_img_loadPixels_pixels_updatePixels

PImage img;

void setup() {

  size(500, 500);

  img = createImage(500, 500, RGB); //用來畫圖的布

  img.loadPixels();

  for (int i =0; i<500*500; i++) img.pixels[i] = color(#FFFFF2);//-14

  img.updatePixels();

}

int x =250 ,y=0;

void draw() {

  background(img);

  ellipse(x, y, 20, 20);

  if (img.pixels[x+y*500]== -14)  y++;

}

void mouseDragged() {

  background(img);

  line(mouseX, mouseY, pmouseX, pmouseY);

  loadPixels();

  for (int i =0; i<500*500; i++) img.pixels[i] = pixels[i];// 把畫面的色彩，搬到img裡

  img.updatePixels();

  updatePixels();

}

// week14_04_draw_lines_rain_ArratList_PVector_p_pp

PImage img;

void setup() {

  size(500, 500);

  img = createImage(500, 500, RGB); //用來畫圖的布

}//換黑背景

//int x =250, y=0;

ArrayList<PVector> p = new ArrayList<PVector>(); // 很多個點p

void draw() {

  background(img);

  for (PVector pp : p) {

    ellipse(pp.x, pp.y, 20, 20);

    if (pp.y < 498 && img.pixels[int(pp.x)+int(pp.y)*500]==-16777216) pp.y++;

  }

}

void mouseDragged() {

  background(img);

  stroke(random(255), random(255), random(255));

  line(mouseX, mouseY, pmouseX, pmouseY);

  loadPixels();

  for (int i =0; i<500*500; i++) img.pixels[i] = pixels[i];// 把畫面的色彩，搬到img裡

  img.updatePixels();

  updatePixels();

  for (PVector pp : p) {

    ellipse(pp.x, pp.y, 20, 20);

  }

}

void mousePressed() {

  if (mouseButton==RIGHT) {

    p.add(new PVector(mouseX, mouseY));

  }

}

// week14_05_draw_lines_myFloodFill_x_y_c1_c2_pixels_isOK

void setup() {

  size(500, 500);

  background(#FFFFF2);

}

void draw() {

  if (mousePressed && mouseButton==LEFT )line(mouseX, mouseY, pmouseX, pmouseY);

  if (mousePressed && mouseButton== RIGHT) {

    loadPixels();// 把畫面，讀入 pixels[]陣列裡

    color c1 = pixels[mouseX+mouseY*500];//原本的色彩

    color c2 = color(random(255), random(255), random(255));// 亂數新色彩

    if (c1!=c2) myFloodFill(mouseX, mouseY, c1, c2);

    updatePixels();

  }

}

boolean isOK(int x, int y, color c1) {

  if (x< 0 || y<0 || x>=500 || y>=500) return false;

  if(pixels[x + y*500] != c1)return false;

  return true;

}

void myFloodFill(int x, int y, color c1, color c2) {

  pixels[x+y*500]=c2;

  if (isOK(x+1, y, c1)) myFloodFill(x+1, y, c1, c2);

  if (isOK(x-1, y, c1)) myFloodFill(x-1, y, c1, c2);

  if (isOK(x, y+1, c1)) myFloodFill(x, y+1, c1, c2);

  if (isOK(x, y-1, c1)) myFloodFill(x, y-1, c1, c2);

}//不要點太大的區域，因為函式

// week14_06_cute_cursor

void setup(){

  size(500,500);

  PImage img = loadImage("kitty.png");

  cursor(img);

}

void draw(){

  background(#FFFFF2);

}

// week14_07_cute_cursor_kitty_cursor

PImage imgCute, imgKitty;

void setup() {

  size(500, 500);

  imgCute = loadImage("cute.png");

  imgKitty = loadImage("images.jpg");

  cursor(imgKitty);

}

void draw() {

  background(#FFFFF2);

  if (frameCount%120==0) cursor(imgCute);

  if (frameCount%120==60) cursor(imgKitty);

}

// week14_08_big_cursor_imageMode_image_imageMode

//

PImage imgBigCute, imgBigKitty, imgCursor;

void setup(){

  size(500,500);

  imgBigCute = loadImage("cute.png");

  imgBigKitty = loadImage("images.jpg");

  imgCursor = imgBigKitty;

}

void draw(){

  background(#FFFFF2);

  imageMode(CENTER);

  image(imgCursor, mouseX, mouseY);

  imageMode(CORNER);

  if(frameCount%120==0) imgCursor = imgBigCute;

  if(frameCount%120==60)imgCursor = imgBigKitty;

}