Week 02 劉正威

一 神奇小畫家
只能移動滑鼠作畫的小畫家

可以用左鍵來作畫的小畫家

void setup(){
size(600,600);
}
void draw(){
  if(mousePressed)
  line(mouseX,mouseY,pmouseX,pmouseY);
}
利用按鍵來改畫筆顏色

void setup(){
size(600,600);
}
void draw(){
  if(mousePressed)
  line(mouseX,mouseY,pmouseX,pmouseY);
}
void keyPressed(){
  if(key=='1') stroke(#F52525);
  if(key=='2') stroke(#FFD900);
  if(key=='3') stroke(#00FF1B);

}
改畫筆粗細加顏色

void setup(){
size(600,600);
}
void draw(){
  if(mousePressed)
  line(mouseX,mouseY,pmouseX,pmouseY);
}
void keyPressed(){
  if(key=='1') stroke(#F52525);
  if(key=='2') stroke(#FFD900);
  if(key=='3') stroke(#00FF1B);
  if(key=='4') strokeWeight(10);
  if(key=='5') strokeWeight(20);
}
int now=1;
void mouseWheel(MouseEvent event){
  float e= event.getCount();
  now +=e;
  if(now<1) now=1;
  strokeWeight(now);
  println(now);
}
讀檔和存檔

void setup(){
size(600,600);
}
void draw(){
  if(mousePressed)
  line(mouseX,mouseY,pmouseX,pmouseY);
}
void keyPressed(){
  if(key=='1') stroke(#F52525);
  if(key=='2') stroke(#FFD900);
  if(key=='3') stroke(#00FF1B);
  if(key=='4') strokeWeight(10);
  if(key=='5') strokeWeight(20);
  if(key=='s') save("now.png");
  if(key=='r'){
    PImage img=loadImage("now.png");
    if(img!=null) image(img,0,0);
  }
}
int now=1;
void mouseWheel(MouseEvent event){
  float e= event.getCount();
  now +=e;
  if(now<1) now=1;
  strokeWeight(now);
  println(now);
}
叫出調色盤

void setup(){
size(600,600);
}
void draw(){
  if(mousePressed)
  line(mouseX,mouseY,pmouseX,pmouseY);
}
boolean bColorSelect=false;
void keyPressed(){
  if(key=='1') stroke(#F52525);
  if(key=='2') stroke(#FFD900);
  if(key=='3') stroke(#00FF1B);
  if(key=='4') strokeWeight(10);
  if(key=='5') strokeWeight(20);
  if(key=='s') save("now.png");
  if(key=='r'){
    PImage img=loadImage("now.png");
    if(img!=null) image(img,0,0);
  }
  if(key=='c' && bColorSelect==false){
    bColorSelect=true;
    save("beforeColor.png"); 
    PImage img=loadImage("colorMap.png");
    image(img, 0,0);
  }else if(key=='c' && bColorSelect==true){
    bColorSelect=false; 
    PImage img=loadImage("beforeColor.png");
    if(img!=null) image(img, 0,0);
  }
}
int now=1;
void mouseWheel(MouseEvent event){
  float e= event.getCount();
  now +=e;
  if(now<1) now=1;
  strokeWeight(now);
  println(now);
}
滑鼠選顏色

void setup(){
  size(600,600);
  background(255);
}
void draw(){
  if(bColorSelect){
    loadPixels();
  stroke(pixels[mouseX+mouseY*width]);
  }
  else if(mousePressed) line(mouseX,mouseY,pmouseX,pmouseY);
}
boolean bColorSelect=false;
void keyPressed(){
  if(key=='1') stroke(#F52525);
  if(key=='2') stroke(#FFD900);
  if(key=='3') stroke(#00FF1B);
  if(key=='4') strokeWeight(10);
  if(key=='5') strokeWeight(20);
  if(key=='s') save("now.png");
  if(key=='r'){
    PImage img=loadImage("now.png");
    if(img!=null) image(img,0,0);
  }
  if(key=='c' && bColorSelect==false){
    bColorSelect=true;
    save("beforeColor.png");
    PImage img=loadImage("colorMap.png");
    image(img, 0,0);
  }else if(key=='c' && bColorSelect==true){
    bColorSelect=false;
    PImage img=loadImage("beforeColor.png");
    if(img!=null) image(img, 0,0);
  }
}
int now=1;
void mouseWheel(MouseEvent event){
  float e= event.getCount();
  now +=e;
  if(now<1) now=1;
  strokeWeight(now);
  println(now);
}