week141414

 week14-1

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

void setup(){

    size(500, 500);

    background(255);

}

void draw(){

}

void mouseDragged(){

    if(mouseButton == LEFT) 

        line(mouseX, mouseY, pmouseX, pmouseY); 

    loadPixels(); 

    for(int i = 0; i < width*height; i++){

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

    }

    updatePixels(); 

 }

week14-3

PImage img;

void setup(){

    size(500, 500);

    img = createImage(500, 500, RGB);

    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(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]; 

    img.updatePixels();

    updatePixels();

}

week14-4

PImage img;

void setup(){

    size(500, 500);

    img = createImage(500, 500, RGB);

}

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

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();

    img.loadPixels();

    for(int i = 0; i < 500 * 500; i++) img.pixels[i] = pixels[i];

    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

void setup(){

    size(500, 500);

    background(#FFFFF2);

}

void draw(){

    if(mousePressed && mouseButton == LEFT) 

        line(mouseX, mouseY, pmouseX, pmouseY);

    if(mousePressed && mouseButton == RIGHT){

        loadPixels(); 

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

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

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

        updatePixels(); 

    }

}

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

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

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

    return true;

}

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

    pixels[x + y * 500] = c2;

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

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

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

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

}

week14-6

void setup (){

  size(500,500);

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

  cursor(img);

}

  void draw(){

    background(#FFFFF2);

  }

week14-7

PImage imgCute, imgKitty;

void setup(){

    size(500, 500);

    imgCute = loadImage("cute.png");

    imgKitty = loadImage("kitty.png");

    cursor(imgKitty);

    // 可用 https://remove.bg 來將圖片去掉背景

}

void draw(){

    background(#FFFFF2);

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

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

}

week14-8

PImage imgBigCute, imgBigKitty, imgCursor;

void setup(){

    size(500, 500);

    imgBigCute = loadImage("bigcute.png");

    imgBigKitty = loadImage("bigkitty.png");

    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;

}