02163610_葉哲綸

void setup(){

  

    size(800,600);

    background(#F2478E);

}

void draw(){

  fill(0,255,0);rect(0,0,100,100);

  fill(0,0,255);rect(0,100,100,100);

  fill(255,255,0);rect(0,200,100,100);

}

void mouseDragged(){

  line(mouseX,mouseY,pmouseX,pmouseY);

}

void mousePressed(){

  if(mouseX<100 && mouseY<100){stroke(0,255,0);}

  else if(mouseX<100 && mouseY<200){stroke(0,0,255);}

  else if(mouseX<100 && mouseY<300){stroke(255,255,0);}

}

void setup(){

    size(800,600);

    background(255);

    stroke(#FF081C);

}

float myTsuTsuDer=1;

color myStroke=color(0);//0=black

void draw(){

  stroke(0);strokeWeight(1);

  fill(0,255,0);rect(0,0,100,100);

  fill(0,0,255);rect(0,100,100,100);

  fill(255,255,0);rect(0,200,100,100);

  stroke(myStroke);strokeWeight(myTsuTsuDer);

}

void mouseDragged(){

  line(mouseX,mouseY,pmouseX,pmouseY);

}

void mousePressed(){

  if(mouseX<100 && mouseY<100){stroke(0,255,0);}

  else if(mouseX<100 && mouseY<200){stroke(0,0,255);}

  else if(mouseX<100 && mouseY<300){stroke(255,255,0);}

  if(mouseX>700) myTsuTsuDer=mouseY/30;

}

PImage imgBG;

PImage imgBlack;

void setup(){

    size(800,600);

    imgBG=loadImage("a.jpg");

    imgBlack=createImage(800,600,ALPHA);

    imgBlack.loadPixels();

    for (int i=0;i<imgBlack.pixels.length;i++){

      imgBlack.pixels[i] =color(255);

    }

    imgBlack.updatePixels();

}

void draw() {

  image(imgBG, 0 ,0 ,width,height);

}

void mouseDragged(){

}

PImage imgBG;

PImage imgBlack;

void setup(){

    size(800,600);

    imgBG=loadImage("a.jpg");

    imgBlack=createImage(800,600,ARGB);

    imgBlack.loadPixels();

    for (int i=0;i<imgBlack.pixels.length;i++){

      imgBlack.pixels[i] =color(0,0,0,255);

    }

    imgBlack.updatePixels();

}

void draw() {

  image(imgBG,0,0,width,height);

  image(imgBlack,0,0,width,height);

}

void mouseDragged(){

  imgBlack.loadPixels();

  imgBlack.pixels[mouseX+mouseY*width] = color(0,0,0,0);

  imgBlack.updatePixels();

}

PImage imgBG;

PGraphics pgBlack;

void setup(){

    size(800,600);

    imgBG=loadImage("a.jpg");

    pgBlack=createGraphics(800,600);

    pgBlack.beginDraw();

    pgBlack.strokeWeight(50);

    pgBlack.stroke(0,0,0,28);

    pgBlack.endDraw();

}

void draw() {

  image(imgBG,0,0,width,height);

  image(pgBlack,0,0);

}

void mouseDragged(){

    pgBlack.beginDraw();

    pgBlack.strokeWeight(50);

    pgBlack.stroke(255,255,255,100);

    pgBlack.line(mouseX,mouseY,pmouseX,pmouseY);

    pgBlack.endDraw();

}