WEEK 02 鄭彥謙

1. 畫線  (滑鼠移動到哪就畫線畫到哪)
  line(mouseX, mouseY, pmouseX, pmouseY);
 

2.滑鼠按下去才會畫線

3.把背景變成白色，並且按數字鍵1.2.3可以換顏色


4.可以用滾輪改粗細

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(#FF0015);
  if(key=='2') stroke(#FFD900);
  if(key=='3') stroke(#00FF1B);
  if(key=='4') strokeWeight(30);
  if(key=='5') strokeWeight(40);
}
int now=1;
void mouseWheel(MouseEvent event)
{
  float e = event.getCount();
  //println(e);
  now += e;
  if(now<1) now=1;
  strokeWeight(now);
  println(now);

}

.按c可以叫出小畫家的調色盤

7.可以選調色盤的顏色