#include <math.h>
#define ROW 8
#define COL 3
#define G1 10
#define LED_L 8
#define LIGHT 1
#define DARK 0
#define beg 4//起始值
const char scan[COL] = {13,12,11};
const char tMax[LED_L]={5,6,7,6,8,7,6,7};
const char row[ROW] = {9,8,7,6,5,4,3,2};
const char Speed[] = {40, 30, 30, 20, 20, 10, 10, 1,1};
int xC=0;//計數器
char Map[LED_L];
char Title[LED_L+1][5];//速度,起始值,目前值,終值,遞增(減)
void setRand(char);
void moveMap();
void prnMap();

void setup() {
  int i,j,k,m,n;
  randomSeed(analogRead(A0));
  for (i = 0; i<COL; i++) pinMode(scan[i], OUTPUT);
  for (i = 0; i<ROW; i++) pinMode(row[i], OUTPUT);
  for (i = 0; i<ROW; i++) setRand(i);
  pinMode(G1, OUTPUT);
  digitalWrite(G1,LOW);
}

void loop(){
  moveMap();
  prnMap();
}

//設定 led 速度0,起始值1,目前值2,終值3,遞增(減)4
void setRand(char i){
  char x;
  Title[i][0]=0;
  Title[i][1]=random(beg)+1+(random(beg)>0);
  Title[i][2]=Title[i][1];
  x=LED_L-Title[i][1];
  Title[i][3]=random(x-2)+Title[i][1]+2+(random(beg)>1);
  if(Title[i][3]>=LED_L) Title[i][3]=LED_L;
  Title[i][4]=1;
  Map[i]=Title[i][2];
}

//速度(0),起始值(1),目前值(2),終值(3),遞增(減)(4)
void moveMap(){
    char i,j,k;
    for(i=0;i<LED_L;i++)
      if(Title[i][0]>=Speed[Title[i][2]]){
        Title[i][0]=0;
        Title[i][2]+=Title[i][4];
        if(Title[i][2]<Title[i][1]){
          xC++;
          setRand(i);
        }
        else if(Title[i][2]>Title[i][3]){
          Title[i][4]=-1;
          Title[i][2]+=Title[i][4];
        }
        Map[i]=Title[i][2];
      }
      else
        Title[i][0]++;
}

void prnMap(){
  char i,j,k,u,m;
  for(i=LOW;i<=HIGH;i++){
      digitalWrite(scan[2],i);  
      for(j=LOW;j<=HIGH;j++){
          digitalWrite(scan[1],j);        
          for(k=LOW;k<=HIGH;k++){
              digitalWrite(scan[0],k);
              u=i*4+j*2+k;
              for(m=0;m<Map[u];m++) digitalWrite(row[m],LIGHT);
              for(m=Map[u];m<LED_L;m++) digitalWrite(row[m],DARK);
              digitalWrite(G1,1);
              delay(1);
              digitalWrite(G1,0);
          }
      }
  }
}