Week02 大原大次郎的龜有公園前派出所日常

1.自製小畫家

程式碼:
void setup(){
  size(600,600);
  background(255);
}
void draw(){
 if(mousePressed) line(mouseX,mouseY,pmouseX,pmouseY);
}   ↑當滑鼠點擊
void keyPressed(){
   if(key=='1') stroke(#FF0000);
   if(key=='2') stroke(#FFFF00);
   if(key=='3') stroke(#00FF00);
}

用滾輪調整粗度

程式碼:
void setup(){
  size(600,600);
  background(255);
}
void draw(){
 if(mousePressed) line(mouseX,mouseY,pmouseX,pmouseY);
}
void keyPressed(){
   if(key=='1') stroke(#FF0000);
   if(key=='2') stroke(#FFFF00);
   if(key=='3') stroke(#00FF00);
}
int now=1;
void mouseWheel(MouseEvent event){
 float e=event.getCount();
 now += e;
 if(now<1) now=1;
 strokeWeight(now);
 println(now);
}

存檔、讀檔

按s存檔，CTRL+K可以開資料夾

按下R讀取檔案

程式碼:

void setup(){

  size(600,600);

  background(255);

}

void draw(){

 if(mousePressed) line(mouseX,mouseY,pmouseX,pmouseY);

}

void keyPressed(){

   if(key=='1') stroke(#FF0000);

   if(key=='2') stroke(#FFFF00);

   if(key=='3') stroke(#00FF00);

   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);

}

選取顏色

程式碼

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(#FF0000);

   if(key=='2') stroke(#FFFF00);

   if(key=='3') stroke(#00FF00);

   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);

}