week02

 小畫家概念

void setup()

{

    size(600,500);

fill(#ff0000);rect(0,0,100,100);//第一個紅色

 fill(#ffff00);rect(0,100,100,100);//第二個黃色    

 fill(#00ff00);rect(0,200,100,100);//第三個綠色

strokeWeight(5);

}

void keyPressed()

{觸發事件按下去

    save("yes.png");//存檔

}

void draw()

{

    line(100,0,100,500);

if(mousePressed&&mouseX<100)

{

    if(mouseY<100)stroke(#ff0000);

 else if(mouseY<200)stroke(#ffff00);

else if(mouseY<300)stroke(#00ff00);

}

if(mousePressed && mouseX>100)

{

    line(mouseX,mouseY,pmouseX,pmouseY);

}

}