Dubi week14

Week14

//week14_1_draw_lines_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_2_draw_lines_loadPixes_updatePixels
void setup() {
  size(500, 500);
  background(255);
}
void draw() {
  //pixels
}
void mouseDragged() {
  if (mouseButton==LEFT) { //在左鍵dragged拖曳時
    line(mouseX, mouseY, pmouseX, pmouseY);//本來的線，是灰黑色，不是白色
    loadPixels();//取出畫面的像素
    //println(pixels[0]);//白色是-1
    for (int i=0; i<width*height; i++) { //全部的點都去巡一下色彩
      if (pixels[i]!=-1) pixels[i] = color(random(255), random(255), random(255));
    }
    updatePixels();//若有修改，要再放回去
  }
}

//week14_03_draw_lines_rain_PImage_createImage_ing_loadPixels_pixels_updatePixels
PImage img;
void setup() {
  size(500, 500);
  img= createImage(500, 500, RGB);//用來畫圖的畫布
  img.loadPixels();
  for (int i=0; i<500*500; i++) img.pixels[i] = color(#FFFFF2);
  img.updatePixels();
}
int x=250, y=0;
void draw() {
  background(img);
  ellipse(x, y, 20, 20);
  if (y<498 && img.pixels[x+y*500]==-14) y++;
}
void mouseDragged() {
  background(img);
  line(mouseX, mouseY, pmouseX, pmouseY);
  loadPixels();
  img.loadPixels();
  for (int i=0; i<500*500; i++) img.pixels[i]=pixels[i]; //把畫面的色彩搬到img裡面
  img.updatePixels();
  updatePixels();
}

//week14_4_draw_lines_rain

PImage img;

void setup() {

  size(500, 500);

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

}//換黑背景

ArrayList<PVector>p=new ArrayList<PVector>();

void draw() {

  background(img);

  for(PVector pp :p){

    ellipse(pp.x, pp.y, 20, 20);

    

  }

}

void mouseDragged() {

  background(img);

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

  line(mouseX, mouseY, pmouseX, pmouseY);

  loadPixels();

  img.loadPixels();

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

  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_5_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();

    color c1 = pixels[mouseX+mouseY*500];

    color c2 = color (random(255), random(255), random(255));

    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);

}

//week14_6_cute_cursor

void setup(){

  size(500,500);

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

  cursor(img);

}

void draw(){

  background(#FFFFF2);

}

//week14_7_cute_cursor_kitty_cursor

PImage imgCute, imgKitty;

void setup(){

  size(500,500);

  imgCute = loadImage("cute.png");

  imgKitty = loadImage("kitty.png");

  cursor(imgKitty);

}

void draw(){

  background(#FFFFF2);

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

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

}