@W@ Week04

 

Week04

1.)

1-1.小球往右上移動

void setup(){

 size(500,500); 

}

int x=250,y=250;

void draw(){

 ellipse(x,y,10,10);

 x=x+1;

 y=y-1;

}

1-2.小球碰到邊界會轉方向

void setup(){

 size(500,500); 

}

float x=250,y=250;

float vx=1.0,vy=-0.5;

void draw(){

 ellipse(x,y,10,10);

 x=x+vx;

 y=y+vy;

 if(x>500)vx=-vx;

 if(y<0)vy=-vy;

}

1-3.劃出一個會反彈的小方格

void setup(){

 size(500,500); 

}

float x=250,y=250;

float vx=2.0,vy=-1.5;

void draw(){

 background(#FFFFF2);

 int boardX=mouseX;

 rect(boardX,470,100,20);

 ellipse(x,y,10,10);

 x=x+vx;

 y=y+vy;

 if(x>500)vx=-vx;

 if(x<0)vx=-vx;

 if(y<0)vy=-vy;

 if(y>470 && x>boardX && x<boardX+100)vy=-vy;

}

2.)

2-1.加摩擦力

void setup(){

  size(500,500); 

}

float x=250,y=250;

float vx=2.0,vy=-2.5;

float boardX,boardY=470,boardW=100,boardH=20; 

void draw(){

  boardX=mouseX-boardW/2;

  background(#FFFFF2);

  int boardX=mouseX;

  rect(boardX,boardY,boardW,boardH);

  ellipse(x,y,10,10);

  x=x+vx;

  y=y+vy;

  if(x>500)vx=-vx;

  if(x<0)vx=-vx;

  if(y<0)vy=-vy;

  if((y>boardY && y<boardY+boardH) && (x>boardX && x<boardX+boardW)){

    vy=-vy;

    vx+=(mouseX-pmouseX)/2;

  }

  if(mousePressed && mouseButton==LEFT) boardW*=1.01;

  if(mousePressed && mouseButton==RIGHT) boardW*=0.99;

}

2-2.開新檔

void setup(){

 size(500,500); 

}

void draw(){

  for(int x=50;x<=450;x+=50){

    for(int y=50;y<=450;y+=50){

       ellipse(x,y,50,50); 

    }

  }

}

2-3.用陣列寫黑白棋

void setup(){

 size(500,500); 

}

int [][] go={

 {0,0,0,0,0,0,0,0,1},

 {0,0,0,0,0,0,0,0,1},

 {0,1,0,0,0,0,0,0,1},

 {0,0,0,0,0,0,1,0,1},

 {0,0,0,0,0,0,0,0,1},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},  

};

void draw(){

  for(int i=0;i<9;i++){

    for(int j=0;j<9;j++){

       if(go[i][j]==1)fill(0);

       else fill(255);

       ellipse(50+j*50,50+i*50,50,50); 

    }

  }

}

3.)

3-1.

void setup(){

 size(500,500); 

}

int [][] go={

 {0,0,0,0,0,0,0,0,1},

 {0,0,0,0,0,0,0,0,1},

 {0,1,0,0,0,0,0,0,1},

 {0,0,0,0,0,0,1,0,1},

 {0,0,0,0,0,0,0,0,1},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},  

};

void draw(){

  background(246,194,108); 改背景色

  for(int i=1;i<=9;i++){畫線

    line(50,50*i,450,50*i);

    line(50*i,50,50*i,450);

  }

  for(int i=0;i<9;i++){

    for(int j=0;j<9;j++){

       if(go[i][j]==1){

         fill(0);

         ellipse(50+j*50,50+i*50,40,40); 

       }

       else if(go[i][j]==2){

           fill(255);

           ellipse(50+j*50,50+i*50,40,40);

       }

    }

  }

}

3-2.

void setup(){

 size(500,500); 

}

int [][] go={ ///歸零

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},

 {0,0,0,0,0,0,0,0,0},  

};

int N=0;

void mousePressed(){

  int j=(mouseX-25)/50;

  int i=(mouseY-25)/50;

  go[i][j]=(N%2==0)?1:2; ///ifN%2==0用1，否則用2

  N++;

}

void draw(){

  background(246,194,108);

  for(int i=1;i<=9;i++){

    line(50,50*i,450,50*i);

    line(50*i,50,50*i,450);

  }

  for(int i=0;i<9;i++){

    for(int j=0;j<9;j++){

       if(go[i][j]==1){

         fill(0);

         ellipse(50+j*50,50+i*50,40,40); 

       }

       else if(go[i][j]==2){

           fill(255);

           ellipse(50+j*50,50+i*50,40,40);

       }

    }

  }

}