Week07 上課筆記(林裕宸)

 讓球球往下掉

float x=250,y=0,vx=0,vy=3;
void setup(){
    size(500,600);
}
void draw(){
  background(255);  
  ellipse(x,y,50,50);
  y=y+vy;
}
讓球球一快一慢

float x=250,y=0,vx=0,vy=3;

float x2=150,y2=50,vx2=0,vy2=2;

void setup(){

    size(500,600);

}

void draw(){

  background(255);  

  ellipse(x,y,50,50);

  ellipse(x2,y2,50,50);

  y=y+vy;

  y2=y2+vy2;

}

好多球球不同速度

float []x={250,150,350,300};

float []y={0,50,80,100};

float []vx={0,0,0,0};

float []vy={3,2,2.5,4};

void setup(){

    size(500,600);

}

void draw(){

  background(255);  

  for(int i=0;i<4;i++){  

    ellipse(x[i],y[i],50,50);

    y[i]=y[i]+vy[i];

  }

}

讓他上下撞撞撞

float []x={250,150,350,300};

float []y={0,50,80,100};

float []vx={0,0,0,0};

float []vy={3,2,2.5,4};

void setup(){

    size(500,600);

}

void draw(){

  background(255);

  for(int i=0;i<4;i++){

    ellipse(x[i],y[i],50,50);

    y[i]=y[i]+vy[i];

    if(y[i]>600)vy[i]=-vy[i];

    if(y[i]<0)vy[i]=-vy[i];

  }

}

讓他抓住球球

float []x={250,150,350,300};

float []y={0,50,80,100};

float []vx={0,0,0,0};

float []vy={3,2,2.5,4};

void setup(){

    size(500,600);

}

void draw(){

  background(255);

  for(int i=0;i<4;i++){

    fill(255,255,0);ellipse(x[i],y[i],50,50);

    if(dist(mouseX,mouseY,x[i],y[i])<=50){

      continue;

    }

    y[i]=y[i]+vy[i];

    if(y[i]>600)vy[i]=-vy[i];

    if(y[i]<0)vy[i]=-vy[i];

    fill(255,0,0);ellipse(mouseX,mouseY,50,50);

  }

}

把球球殺掉

float []x={250,150,350,300};

float []y={0,50,80,100};

float []vy={3,2,2.5,4};

boolean[] dead={false,false,false,false};

void setup(){

    size(500,600);

}

void draw(){

  background(255);

  for(int i=0;i<4;i++){

    if(dist(mouseX,mouseY,x[i],y[i])<=50){

      dead[i]=true;

    }

    if(dead[i]==true)continue;

    fill(255,255,0);ellipse(x[i],y[i],50,50);

    y[i]=y[i]+vy[i];

    if(y[i]>600)vy[i]=-vy[i];

    if(y[i]<0)vy[i]=-vy[i];

    fill(255,0,0);ellipse(mouseX,mouseY,50,50);

  }

}

按螢幕會變紅

boolean down;

void setup(){

    size(500,300);

}

void draw(){

    if(mousePressed)down=true;

    else down=false;

    print(down);

    if(down)background(255,0,0);

    else background(0,255,0);

}

好多球

float[] x;

float[] y;

float[] vy;

boolean[] dead;

int N=20;

void setup(){

  size(500,600);

  x=new float[N]; 

  y=new float[N];

  vy=new float[N];

  dead=new boolean[N];

  for(int i=0;i<N;i++){

    x[i]=random(500); 

    y[i]=100;

    vy[i]=random(2,4);

    dead[i]=false;

    }

}

void draw(){

  background(255);

  for(int i=0;i<N;i++){

    if(dist(mouseX,mouseY,x[i],y[i])<=50){

      dead[i]=true; 

    }

    if(dead[i]==true) continue; 

    fill(255,255,0);ellipse(x[i],y[i],50,50);

    y[i]=y[i]+vy[i]; 

    if(y[i]>600) vy[i] = -vy[i];

    if(y[i]<0) vy[i] = -vy[i]; 

  }

  fill(255,0,0);ellipse(mouseX,mouseY,50,50);

}