Week 02 柯君翰

1.製作小畫家

(1) 跑出線來

(2)讓滑鼠控制繪畫

(3) 背景改變，點擊數字鍵換色筆顏色

(4)改變畫筆粗細，按鍵跟滑鼠滾輪

(5)使用s按鍵儲存，可以儲存，r是可以回復上一次儲存的

(6)將調色盤的圖片加入

(7)選取調色盤顏色，轉換色筆顏色

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(#007DFF);

  if(key=='2') stroke(#FF2B00);

  if(key=='3') stroke(#FFEA00);

  if(key=='4') strokeWeight(30);

  if(key=='5') strokeWeight(40);

  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();

  //println(e);

  now += e;

  if(now<1) now=1;

  strokeWeight(now);

  println(now);

}