#property indicator_chart_window
#property indicator_buffers 8

double BufSTC_MAIN[];
double BufUP_STC[];
double BufDOWN_STC[];
double BufUP[];
double BufCenter[];
double BufDOWN[];
double BufUP_Arrow[];
double BufDOWN_Arrow[];

extern int BB_Period = 20;
extern int UP_LINE = 80;
extern int DOWN_LINE = 20;

// 初期化関数
int init()
{
   SetIndexBuffer(0, BufSTC_MAIN);
   SetIndexBuffer(1, BufUP_STC);
   SetIndexBuffer(2, BufDOWN_STC);
   SetIndexBuffer(3, BufUP);
   SetIndexBuffer(4, BufCenter);
   SetIndexBuffer(5, BufDOWN);
   SetIndexBuffer(6, BufUP_Arrow);
   SetIndexBuffer(7, BufDOWN_Arrow);

   SetIndexStyle(0,DRAW_ARROW,STYLE_SOLID,EMPTY_VALUE);   
   SetIndexStyle(1,DRAW_ARROW,STYLE_SOLID,2,Blue);
   SetIndexArrow(1,233);
   SetIndexStyle(2,DRAW_ARROW,STYLE_SOLID,2,Red);
   SetIndexArrow(2,234);
   SetIndexStyle(6,DRAW_ARROW,STYLE_SOLID,4,Green);
   SetIndexArrow(6,233);
   SetIndexStyle(7,DRAW_ARROW,STYLE_SOLID,4,Yellow);
   SetIndexArrow(7,234);

   return(0);
}

// 指標計算関数
int start()
{
	int counted_bar = IndicatorCounted();
	int limit = Bars-counted_bar;

	if(counted_bar == 0) limit -= 1;
	for (int i = limit-1; i>=0; i--)
	{
		BufSTC_MAIN[i] = iStochastic(NULL,0,5,3,3,MODE_SMA,0,MODE_MAIN,i);
		BufUP[i] = iBands(NULL,0,BB_Period,3,0,PRICE_CLOSE,1,i);
		BufCenter[i] = iBands(NULL,0,BB_Period,3,0,PRICE_CLOSE,0,i);
		BufDOWN[i] = iBands(NULL,0,BB_Period,3,0,PRICE_CLOSE,2,i);
   }

	if(counted_bar == 0) limit -= 2;
	for (i = limit-1; i>=0; i--)
	{
		BufDOWN_STC[i] = EMPTY_VALUE;
		if(BufSTC_MAIN[i+1] > UP_LINE && BufSTC_MAIN[i] <= UP_LINE)
		{
		BufDOWN_STC[i] = High[i]+20*Point;
		}
		BufUP_STC[i] = EMPTY_VALUE;
		if(BufSTC_MAIN[i+1] < DOWN_LINE && BufSTC_MAIN[i] >= DOWN_LINE)
		{
		BufUP_STC[i] = Low[i]-20*Point;
		}
		if(BufUP[i]<High[i]){
			BufDOWN_Arrow[i] = EMPTY_VALUE;
			BufDOWN_Arrow[i] = High[i]+30*Point;
		}
		if(BufDOWN[i]>Low[i]){
			BufUP_Arrow[i] = EMPTY_VALUE;
			BufUP_Arrow[i] = Low[i]-30*Point;
		}
	}
	
	return(0);
}