#include <LedControl.h>
#include <TimerOne.h>
#include "pitch.h"

#define VERT_PIN A0
#define HORZ_PIN A1
#define SEL_PIN  2
#define Speaker_PIN 6
#define device_num 3
#define module_num 3

LedControl lc[module_num] = {LedControl(12, 11, 10, device_num),
                             LedControl(12, 11, 9, device_num),
                             LedControl(12, 11, 8, device_num)
                            };

int row[2] = {23, 23}, col[2] = {12, 12};
int mis[22][2] = {};
int mis_num = 0;
int mon = -1;

int n_r = 0, n_c = 0;
int count1=0;

void plane_move()
{
  int vert = analogRead(VERT_PIN);
  int horz = analogRead(HORZ_PIN);
 
  if (horz > 600)
    col[0] = (col[1] < device_num * 8 - 2) ? col[0] + 1 : device_num * 8 - 2;
  else if (horz < 400)
    col[0] = (col[1] > 1) ? col[0] - 1 : 1;

  if (row[1] != row[0] || col[1] != col[0])
  {

    if (col[0] < col[1]) //往右
      lc[row[1] / 8].setLed((col[1] + 1) / 8, row[1] % 8, (col[1] + 1) % 8, 0); //左
    else
      lc[row[1] / 8].setLed((col[1] - 1) / 8, row[1] % 8, (col[1] - 1) % 8, 0); //右

    lc[(row[1] - 1) / 8].setLed(col[1] / 8, (row[1] - 1) % 8, col[1] % 8, 0); //上

    //lc[row[0] / 8].setLed(col[0] / 8, row[0] % 8, col[0] % 8, 1); //中心
    lc[row[0] / 8].setLed((col[0] + 1) / 8, row[0] % 8, (col[0] + 1) % 8, 1); //左
    lc[row[0] / 8].setLed((col[0] - 1) / 8, row[0] % 8, (col[0] - 1) % 8, 1); //右
    lc[(row[0] - 1) / 8].setLed(col[0] / 8, (row[0] - 1) % 8, col[0] % 8, 1); //上
  }
  row[1] = row[0];
  col[1] = col[0];
}

void monster_move()
{
  if (mon == -1)
    mon = random(22);

  //先暗,移動,再亮
  if (random(10) % 2 == 1) //往右
  {
    if (mon > 0)
    {
      lc[0].setLed((mon + 1) / 8, 0, (mon + 1) % 8, 0); //左邊暗
      lc[0].setLed((mon + 1) / 8, 1, (mon + 1) % 8, 0);
      mon--;
      lc[0].setLed(mon / 8, 0, mon % 8, 1); //右邊亮
      lc[0].setLed(mon / 8, 1, mon % 8, 1);
    }
  }
  else //往左
  {
    if (mon < 22)
    {
      lc[0].setLed(mon / 8, 0, mon % 8, 0); //右邊暗
      lc[0].setLed(mon / 8, 1, mon % 8, 0);
      mon++;
     
      lc[0].setLed((mon + 1) / 8, 0, (mon + 1) % 8, 1); //左邊亮
      lc[0].setLed((mon + 1) / 8, 1, (mon + 1) % 8, 1);
    }
  }
}

void fire()
{
  if (mis_num < 21)
    mis_num++;
  else
    mis_num = 0;

  mis[mis_num][0] = 21; //missile row
  mis[mis_num][1] = col[1];

  tone(Speaker_PIN, c6, 30);
  //tone(Speaker_PIN,1046,30);

  lc[mis[mis_num][0] / 8].setLed(mis[mis_num][1] / 8, mis[mis_num][0] % 8, mis[mis_num][1] % 8, 1);
}
//void hit(){
  //if (miss[mis_num][0] ==  )}
void missile_move()
{
  plane_move();
  count1++;
  //先暗, 上移, 再亮
  for (int i = 0; i < 22; i++)
  {
    lc[mis[i][0] / 8].setLed(mis[i][1] / 8, mis[i][0] % 8, mis[i][1] % 8, 0);

    if (mis[i][0] > -1)
    {
      mis[i][0]--;
    }

    lc[mis[i][0] / 8].setLed(mis[i][1] / 8, mis[i][0] % 8, mis[i][1] % 8, 1);
  }
}


void setup() {
  // put your setup code here, to run once:
  for (int i = 0; i < 3; i++)
    for (int j = 0; j < 3; j++)
    {
      lc[i].shutdown(j, false); // 關閉省電模式
      lc[i].setIntensity(j, 0); // 設定亮度為 0 (介於0~15之間)
      lc[i].clearDisplay(j);    // 清除螢幕
    }
  for (int i = 0; i < 22; i++)
  {
    mis[i][0] = -1;
  }

  pinMode(VERT_PIN, INPUT);
  pinMode(HORZ_PIN, INPUT);
  pinMode(SEL_PIN, INPUT_PULLUP);
  pinMode(6, OUTPUT);

  attachInterrupt(digitalPinToInterrupt(SEL_PIN), fire, FALLING);

  Timer1.initialize(50000);
  Timer1.attachInterrupt(missile_move);

  Serial.begin(9600);

  //顯示Plane
  lc[row[0] / 8].setLed(col[0] / 8, row[0] % 8, col[0] % 8, 1); //中心
  lc[row[0] / 8].setLed((col[0] + 1) / 8, row[0] % 8, (col[0] + 1) % 8, 1); //左
  lc[row[0] / 8].setLed((col[0] - 1) / 8, row[0] % 8, (col[0] - 1) % 8, 1); //右
  lc[(row[0] - 1) / 8].setLed(col[0] / 8, (row[0] - 1) % 8, col[0] % 8, 1); //上

  //顯示Monster
  mon = random(22);
  lc[0].setLed(mon / 8, 0, mon % 8, 1); //右邊
  lc[0].setLed(mon / 8, 1, mon % 8, 1);
  lc[0].setLed((mon + 1) / 8, 0, (mon + 1) % 8, 1); //左邊
  lc[0].setLed((mon + 1) / 8, 1, (mon + 1) % 8, 1);

}

void loop() {
  if (count1>=10)
  {
    monster_move();
    count1=0;
  }
}