豹笑英文 (畫布 week02)

    if(mousePressed) background(255,0,0);

    else background(0,255,0);

    //如果滑鼠按下去，背景變顏色

    if(mousePressed) line(mouseX,mouseY,0,0);

    //如果滑鼠按下去，從座標(0,0)畫直線到游標

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

    //如果滑鼠按下去，從游標畫線到放開滑鼠

總程式碼：

//2021/10/04

void setup(){

  size(500,500);

}

void draw(){

  /*

  if(mousePressed) background(255,0,0);

  else background(0,255,0);

  //如果滑鼠按下去，背景變顏色

  */

  

  /*

  if(mousePressed) line(mouseX,mouseY,0,0);

  //如果滑鼠按下去，從座標(0,0)畫直線到游標

  */

  

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

  //如果滑鼠按下去，從游標畫線到放開滑鼠

}

void setup(){

  size(500,500);

  fill(255,0,0); rect(0,0,100,100);

  fill(0,255,0); rect(0,100,100,100);

  fill(#FFFFFF);

  rect(0,200,100,100); ellipse(50,250,8,8); //8的圓

  rect(0,300,100,100); ellipse(50,350,4,4); //4的圓

}

void draw(){

  if(mousePressed){

    if(mouseX<100){

      if(mouseY<100) stroke(255,0,0);

      //滑鼠點一下(0,0)到(100,100)以內的範圍，接下來畫出的線為紅色

      else if(mouseY<200) stroke(0,255,0);

      //滑鼠點一下(0,100)到(100,200)以內的範圍，接下來畫出的線為綠色

      else if(mouseY<300) strokeWeight(8); //粗

      else if(mouseY<400) strokeWeight(4); //中

    }else line(mouseX,mouseY,pmouseX,pmouseY); //畫線

  }

}

//一般寫法~慢慢寫

void setup(){

  size(500,500);

  rect(0,50,50,50); ellipse(25,25+50,1,1);

  rect(0,100,50,50); ellipse(25,25+100,2,2);

  rect(0,150,50,50); ellipse(25,25+150,3,3);

  rect(0,200,50,50); ellipse(25,25+200,4,4);

  rect(0,250,50,50); ellipse(25,25+250,5,5);

  rect(0,300,50,50); ellipse(25,25+300,6,6);

  rect(0,350,50,50); ellipse(25,25+350,7,7);

  rect(0,400,50,50); ellipse(25,25+400,8,8);

}

void draw(){

  if(mousePressed){

    if(mouseX<50){

      if(mouseY>1*50 && mouseY<1*50+50)strokeWeight(1);

      if(mouseY>2*50 && mouseY<2*50+50)strokeWeight(2);

      if(mouseY>3*50 && mouseY<3*50+50)strokeWeight(3);

      if(mouseY>4*50 && mouseY<4*50+50)strokeWeight(4);

      if(mouseY>5*50 && mouseY<5*50+50)strokeWeight(5);

      if(mouseY>6*50 && mouseY<6*50+50)strokeWeight(6);

      if(mouseY>7*50 && mouseY<7*50+50)strokeWeight(7);

      if(mouseY>8*50 && mouseY<8*50+50)strokeWeight(8);

    }else line(mouseX,mouseY,pmouseX,pmouseY); //畫線

  }

}

//簡化寫法~迴圈

void setup(){

  size(500,500);

  for(int i=1;i<8;i++){ 

    rect(0,i*50,50,50);

    ellipse(25,25+i*50,i,i);

  }

}

void draw(){

  if(mousePressed){

    if(mouseX<50){

      for(int i=1;i<8;i++){ //迴圈改畫筆粗細

        if(mouseY>i*50 && mouseY<i*50+50){

          strokeWeight(i);

        }

      }

    }else line(mouseX,mouseY,pmouseX,pmouseY); //畫線

  }

}

void setup(){ 

  size(500,500);

  fill(#FF0000); rect(0,50,50,50); 

  fill(#FF8D00); rect(0,100,50,50); 

  fill(#FEFF00); rect(0,150,50,50);

  fill(#29FF00); rect(0,200,50,50); 

  fill(#00DBFF); rect(0,250,50,50); 

  fill(#0039FF); rect(0,300,50,50); 

  fill(#9400FF); rect(0,350,50,50); 

  fill(#FE00FF); rect(0,400,50,50); 

}

void draw(){

  if(mousePressed){

    if(mouseX<50){

      if(mouseY>1*50 && mouseY<1*50+50) stroke(#FF0000);

      if(mouseY>2*50 && mouseY<2*50+50) stroke(#FF8D00);

      if(mouseY>3*50 && mouseY<3*50+50) stroke(#FEFF00);

      if(mouseY>4*50 && mouseY<4*50+50) stroke(#29FF00);

      if(mouseY>5*50 && mouseY<5*50+50) stroke(#00DBFF);

      if(mouseY>6*50 && mouseY<6*50+50) stroke(#0039FF);

      if(mouseY>7*50 && mouseY<7*50+50) stroke(#9400FF);

      if(mouseY>8*50 && mouseY<8*50+50) stroke(#FE00FF);

    }else line(mouseX,mouseY,pmouseX,pmouseY); //畫線

  }

}

//組合顏色和畫筆粗細

void setup(){

  size(500,500);

  fill(#FFFFFF);

  for(int i=1;i<9;i++){ 

    rect(0,i*50,50,50);

    ellipse(25,25+i*50,i,i);

  }

  fill(#FF0000); rect(450,50,50,50); 

  fill(#FF8D00); rect(450,100,50,50); 

  fill(#FEFF00); rect(450,150,50,50);

  fill(#29FF00); rect(450,200,50,50); 

  fill(#00DBFF); rect(450,250,50,50); 

  fill(#0039FF); rect(450,300,50,50); 

  fill(#9400FF); rect(450,350,50,50); 

  fill(#FE00FF); rect(450,400,50,50); 

}

void draw(){

  if(mousePressed){

    if(mouseX<50){

      for(int i=1;i<9;i++){ //迴圈改畫筆粗細

        if(mouseY>i*50 && mouseY<i*50+50){

          strokeWeight(i);

        }

      }        

  }else if(mouseX>450){

      if(mouseY>1*50 && mouseY<1*50+50) stroke(#FF0000);

      if(mouseY>2*50 && mouseY<2*50+50) stroke(#FF8D00);

      if(mouseY>3*50 && mouseY<3*50+50) stroke(#FEFF00);

      if(mouseY>4*50 && mouseY<4*50+50) stroke(#29FF00);

      if(mouseY>5*50 && mouseY<5*50+50) stroke(#00DBFF);

      if(mouseY>6*50 && mouseY<6*50+50) stroke(#0039FF);

      if(mouseY>7*50 && mouseY<7*50+50) stroke(#9400FF);

      if(mouseY>8*50 && mouseY<8*50+50) stroke(#FE00FF);

    }else line(mouseX,mouseY,pmouseX,pmouseY); //畫線

  }

}