翰翰日記7

第七周

size(500,500);

for(int angle=0;angle<360;angle+=30)

  {

  float angle2 = radians(angle);

  float x = 100+cos(angle2)*50;

  float y = 100+sin(angle2)*50;

  ellipse(x,y,2,2);

  }

這個直接用cos,sin的公式去畫圓

size(500,500);

beginShape();

for(int angle=0;angle<360;angle+=120)

  {

  float angle2 = radians(angle);

  float x = 100+cos(angle2)*50;

  float y = 100+sin(angle2)*50;

  vertex(x,y);//ellipse(x,y,2,2);

  }

  endShape(CLOSE);

上面那個120度的角度是以內角幾度畫的例如說90度就是正方形

void setup()

{

size(500,500);

}

void draw()

{

beginShape();

for(int angle=0;angle<360;angle+=120)

  {

  float angle2 = radians(angle+mouseX);

  float x = 100+cos(angle2)*50;

  float y = 100+sin(angle2)*50;

  vertex(x,y);//ellipse(x,y,2,2);

  }

  endShape(CLOSE);

}

加入setup draw就可以畫出圓了

void setup()

{

size(500,500);

}

void draw()

{

  background(255);

beginShape();

for(int angle=0;angle<360;angle+=120)

  {

  float angle2 = radians(angle+mouseX);

  float x = mouseX+cos(angle2)*50;

  float y = mouseY+sin(angle2)*50;

  vertex(x,y);//ellipse(x,y,2,2);

  }

  endShape(CLOSE);

}

這樣寫可以讓三角形跟著滑鼠跑

把background(255);註解掉就會醬

void setup()

{

size(500,500);

}

void draw()

{

  background(255);

beginShape();

for(int angle=0;angle<360;angle+=120)

  {

  float angle2 = radians(angle+frameCount);

  float x = mouseX+cos(angle2)*100;

  float y = mouseY+sin(angle2)*100;

  vertex(x,y);//ellipse(x,y,2,2);

  }

  endShape(CLOSE);

}

變大

float fruitX=150,fruitY=0;

float kidX=150,kidY=450;

int score=0;

void setup()

{

size(300,500);

}

void draw()

{

background(255);

rect(kidX,kidY,50,80);

kidX=mouseX;

ellipse(fruitX, fruitY, 60,80);

fruitY++;

if(fruitY>kidY)

  {

    if(kidX<fruitX&&fruitX < kidX+80)

      {

      score+=10;

      fruitY=0; fruitX=random(50,450);

      

      }else

        {

        fruitY=0; fruitX=random(50,450);

        }

  }

}

老師特別寫了一個接東西的程式碼

//float fruitX=150,fruitY=0;

float [] fruitX=new float[10];

float [] fruitY=new float[10];

float kidX=150,kidY=450;

int score=0;

void setup()

{

size(500,500);

for(int i=0;i<10;i++)

  {

  fruitX[i]=random(50,450);

  fruitY[i]=-i*100;

  }

}

void draw()

{

background(255);

rect(kidX,kidY,50,80);

kidX=mouseX;

for(int i=0;i<10;i++){

ellipse(fruitX[i], fruitY[i], 60,80);

fruitY[i]++;

if(fruitY[i]>kidY)

  {

    if(kidX<fruitX[i]&&fruitX[i] < kidX+80)

      {

      score+=10;

      fruitY[i]=0; fruitX[i]=random(50,450);

      

      }else

        {

        fruitY[i]=0; fruitX[i]=random(50,450);

        }

  }

}

}

這個是加強版的水果隨機掉落

版