李甲甲菌w3

1.
void setup(){
    size(600,400); 視窗大小
}
void draw(){
  line(mouseX,mouseY,pmouseX,pmouseY); 滑鼠位置
}

2.
void setup(){
    size(600,400);
}
void draw(){
  ellipse(mouseX,mouseY,3,3);
  line(mouseX,mouseY,pmouseX,pmouseY);
}

3.
void setup(){
    size(600,400);
}
void draw(){
  if(key=='1') stroke(255,0,0); 改顏色
  if(key=='2') stroke(255,255,0); 改顏色
  if(key=='3') stroke(0,255,0); 改顏色
  if(key=='4') strokeWeight(5); 改粗細
  if(key=='5') strokeWeight(3); 改粗細
  if(mousePressed){
  line(mouseX,mouseY,pmouseX,pmouseY);}
}

4.
void setup(){
    size(600,400);
    fill(255,0,0); rect(0,0,50,50); 左邊顏色
    fill(255,255,0); rect(0,50,50,50); 左邊顏色
    fill(0,255,0); rect(0,100,50,50); 左邊顏色
    fill(0,255,255); rect(0,150,50,50); 左邊顏色
    fill(0,0,255); rect(0,200,50,50); 左邊顏色
}
void draw(){
    if(mouseX<50 && mousePressed){
      if(mouseY<50) stroke(255,0,0);
      else if(mouseY<100) stroke(255,255,0);
      else if(mouseY<150) stroke(0,255,0);
      else if(mouseY<200) stroke(0,255,255);
      else if(mouseY<250) stroke(0,0,255);
      else{
        strokeWeight((mouseY-250)/10);
      }
}
if(mouseX>50 && mousePressed){
  line(pmouseX,pmouseY,mouseX,mouseY);
}
}

5.
void setup(){
  size(600,400);
  fill(255,0,0); rect(0,0,50,50);
  fill(255,255,0); rect(0,50,50,50);
  fill(0,255,0); rect(0,100,50,50);
  fill(0,255,255); rect(0,150,50,50);
  fill(0,0,255); rect(0,200,50,50);
  line(25,250,25-7,400);
  line(25,250,25-7,400);
}
void draw(){
  if(mouseX<50 && mousePressed){
    if(mouseY<50) stroke(255,0,0);
    else if(mouseY<100) stroke(255,255,0);
    else if(mouseY<150) stroke(0,255,0);
    else if(mouseY<200) stroke(0,255,255);
    else if(mouseY<250) stroke(0,0,255);
    else{
      strokeWeight((mouseY-250)/10);
    }
  }
 if(mouseX>50&&mousePressed){
   line(pmouseX,pmouseY,mouseX,mouseY);
 }
}

6.
void setup(){
  size(600,400);
  fill(255,0,0); rect(0,0,50,50);
  fill(255,255,0); rect(0,50,50,50);
  fill(0,255,0); rect(0,100,50,50);
  fill(0,255,255); rect(0,150,50,50);
  fill(0,0,255); rect(0,200,50,50);
  line(25,250,25-7,400);
  line(25,250,25-7,400);
}
void draw(){
  if(mouseX<50 && mousePressed){
    if(mouseY<50) stroke(255,0,0);
    else if(mouseY<100) stroke(255,255,0);
    else if(mouseY<150) stroke(0,255,0);
    else if(mouseY<200) stroke(0,255,255);
    else if(mouseY<250) stroke(0,0,255);
    else{
      strokeWeight((mouseY-250)/10);
    }
  }
 if(mouseX>50&&mousePressed){
   line(pmouseX,pmouseY,mouseX,mouseY);
 }
}
void mouseDragged(){
  if(mouseX>50){
    line(pmouseX,pmouseY,mouseX,mouseY);
  }
}
void keyPressed(){
  if(key=='1') stroke(255,0,0);
  if(keyCode==UP) line(300,200,300,0);
  if(keyCode==DOWN) line(300,200,300,400);
  if(keyCode==LEFT) line(300,200,0,200);
  if(keyCode==RIGHT) line(300,200,600,200);
}