int angle=0;

float ps=10;

int x=0;

int y=0;

int time=0;

int[][] block = new int[25][25];

int [][] item = new int[25][2];

int score=0;

int dead=0;

void setup() {

  size(800,800);

  angle=1;

  x=400;

  y=200;

  ps=2;

  frameRate(200);

  for(int i=0;i<3;i++){

    item[i][0]=int(random(800));

    item[i][1]=int(random(800));

  }

  score=0;

}

void draw() {

  if(dead==0){

    background(0);

    strokeWeight(6);

    stroke(255);

    int left=0;

    int right=0;

    if(mouseX<100){left=0;right=200;}

    else if(mouseX>700){left=600;right=800;}

    else{left=mouseX-100;right=mouseX+100;}

    line(left,780,right,780);

    x+=ps;

    y+=angle*ps;

    x=constrain(x,0,800);

    y=constrain(y,0,800);

    fill(100);

    ellipse(x,y,20,20);

    for(int i=0;i<3;i++){

      if(circle(item[i][1],item[i][0],15,x,y,20)==1){

        dl();

        int ny=int(random(800)),nx=int(random(800));

        while(block[ny/40][nx/80]!=0||block[max(0,ny/40-1)][nx/80]!=0||block[ny/40+1][nx/80]!=0||block[ny/40][max(0,nx/80-1)]!=0||block[ny/40][nx/80+1]!=0){ny=int(random(800));nx=int(random(800));}

        item[i][0]=ny;

        item[i][1]=nx;

      }

    }

    dc();

    //y/40,x/80

    //(x/80)*80~(x/80+1)*80

    //if(y/40*40+20,x*80

    //println(y,angle,ps);

    if(block[y/40][x/80]==1){block[y/40][x/80]=0;angle*=-1;y=y/40*40+50;}

    if((y/40)>=1&&(x/80)*80<=x&&x<=(x/80+1)*80&&y-10<=(y/40-1)*40+40&&(y-10-angle*ps)>=(y/40-1)*40+40&&block[(y/40-1)][x/80]==1){block[(y/40-1)][x/80]=0;y=(y/40-1)*40+50;angle*=-1;score++;}//println(angle);}

    if((y/40+1)<=19&&(x/80)*80<=x&&x<=(x/80+1)*80&&y+10>=(y/40+1)*40&&(y+10-angle*ps)<=(y/40+1)*40&&block[y/40+1][x/80]==1){block[y/40+1][x/80]=0;y=(y/40+1)*40-10;angle*=-1;score++;}//println(angle);}

    if((x/80)>=1&&(y/40)*40<=y&&y<=(y/40+1)*40&&x-10<=(x/80-1)*80+80&&(x-10-angle*ps)<=(x/80-1)*80+80&&block[y/40][(x/80-1)]==1){block[y/40][(x/80-1)]=0;x=(x/80-1)*80+90;angle*=-1;ps=2;score++;}

    if((x/80+1)<=9&&(y/40)*40<=y&&y<=(y/40+1)*40&&x+10>=(x/80+1)*80&&(x+10-angle*ps)>=(x/80+1)*80&&block[y/40][(x/80+1)]==1){block[y/40][(x/80+1)]=0;x=(x/80+1)*80-10;angle*=-1;ps=-2;score++;}

    //println(y);

    //delay(10);

    if(time%200==0)bk();

    time++;

    pt();

    for(int i=0;i<3;i++){

      if(block[item[i][0]/40][item[i][1]/80]==1){

        int ny=int(random(800)),nx=int(random(800));

        while(block[ny/40][nx/80]!=0||block[max(0,ny/40-1)][nx/80]!=0||block[ny/40+1][nx/80]!=0||block[ny/40][max(0,nx/80-1)]!=0||block[ny/40][nx/80+1]!=0){ny=int(random(800));nx=int(random(800));}

        item[i][0]=ny;

        item[i][1]=nx;

      }

    }

    for(int i=0;i<10;i++){

      if(block[19][i]==1){dead=1;break;}

    }

    //println(left,right,x);

    if(left<=x&&x<=right&&(y-10-angle*ps)<=780&&780<=y+10){y=770;angle*=-1;}//&&(y-angle*ps)<=600&&600<=y

    else{

      if(x<=10){x=10;ps=2;angle*=-1;}

      if(x>=790){x=790;ps=-2;angle*=-1;}

      if(y<=10){y=10;angle*=-1;}

      if(y>=790){

        //String strVal = String.valueOf(score);

        dead=1;

        //delay(3000);

        //exit();

      }//y=790;angle*=-1;}

    }

  }else{

    fill(255,120,0);

    textSize(50);

    text("Game over you score is "+score,50,400);

  }

}

void bk(){

  for(int i=19;i>=0;i--){

    for(int g=0;g<10;g++){

      block[i+1][g]=block[i][g];

      block[i][g]=0;

    }

  }

  for(int i=0;i<20;i++)block[0][i]=1;

}

void pt(){

  for(int i=0;i<20;i++){

    for(int g=0;g<10;g++){

      if(block[i][g]==1){

        fill(100);

        stroke(255);

        rect(80*g,i*40,80,40);

      }

    }

  }

}

void dc(){

  for(int i=0;i<3;i++){

    fill(255,212,0);

    noStroke();

    ellipse(item[i][1],item[i][0],15,15);

  }

}

void dl(){

  for(int i=0;i<10;i++){

    int gh=0;

    for(int g=19;g>=0;g--){

      if(block[g][i]==1){block[g][i]=0;gh++;score++;}

      if(gh==3)break;

    }

  }

}

int circle(int a,int b,int c,int d,int e,int f){

  if(sqrt(abs(a-d)*abs(a-d)+abs(b-e)*abs(b-e))<=c+f)return 1;

  else return 0;

}