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

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

LedControl lc[module_num] = {
  LedControl(12, 11, 10, device_num),
  LedControl(12, 11, 9, device_num),
  LedControl(12, 11, 8, device_num)
};//宣告 LedControl物件 1組3串 3組能控制9個

volatile int x = 1;//col初始位置
volatile int mis[22][2] = {};//飛彈儲存陣列
volatile int num = 0;//飛彈彈夾數量

bool move = false;
bool right = false;
bool left = false;

volatile uint8_t symbol[] = {
  0b00000001,
  0b00000011,
  0b00000001,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
};//飛機朝上

volatile uint8_t tamp[] = {
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
  0b00000000,
};//暫存飛機圖形器

void setup() {

  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);//設置上拉電阻

  Serial.begin(9600);
  Serial.print(" ");

  Timer1.initialize(50000);//0.05秒進入Timer1次
  Timer1.attachInterrupt(missle);

  triangle();

  attachInterrupt(digitalPinToInterrupt(SEL_PIN), fire, FALLING);//外部中斷

}

void loop() {

}


void planemove() {

  int vert = analogRead(VERT_PIN);
  int horz = analogRead(HORZ_PIN);

  /*Serial.print("x: ");
  Serial.println(x);*/
  
  if (horz > 700) {//定義向左

    x++;
    left = true;
    if (x >= 23) {
      x = 22;
      left = false;
    }

    if (left == true) {
      move = true;
      tamp[1] = symbol[23];
      for (int i = 22; i >= 0 ; i--) {
        symbol[i + 1] = symbol[i];
      }
      symbol[0] = tamp[1];
      left = false;
    }

  }

  if (horz < 300) {//定義向右

    x--;
    right = true;
    if (x <= 0) {
      x = 1;
      right = false;
    }

    if (right == true) {
      move = true;
      tamp[0] = symbol[0];
      for (int i = 0; i <= 22 ; i++) {
        symbol[i] = symbol[i + 1];
      }
      symbol[23] = tamp[0];
      right = false;
    }

  }

  if (move == true) {
    triangle();
    move = false;
  }

}

void missle() {

  planemove();
  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]--;//讓飛彈的row顯示位置改變
    }

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

  }

}

void fire() {

  if (num < 21) {
    num++;//飛彈發射數量累加
  }
  else {
    num = 0;//超過彈夾可容納數量 重製為0
  }

  mis[num][0] = 21; //設定飛彈發射時row位置
  mis[num][1] = x; //設定該飛彈發射時col位置

  tone(Speaker_PIN, c6, 30);
  delay(50);
  tone(Speaker_PIN, 1046, 30);//發聲裝置

  lc[2].setLed(mis[num][1] / 8, mis[num][0] % 8, mis[num][1] % 8, 1);

}

void triangle() {//顯示飛機圖形

  for (int j = 0; j < 8; j++) {
    lc[2].setColumn(0, j, symbol[j]);
  }
  for (int j = 8; j < 16; j++) {
    lc[2].setColumn(1, j - 8, symbol[j]);
  }
  for (int j = 16; j < 24; j++) {
    lc[2].setColumn(2, j - 16, symbol[j]);
  }

}