#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color2 Blue
#property indicator_style2 STYLE_SOLID
#property indicator_width2 2
#property indicator_color3 Red
#property indicator_style3 STYLE_SOLID
#property indicator_width3 2

double BufSTC_MAIN[];
double BufUP[];
double BufDOWN[];

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

// 初期化関数
int init()
{
   SetIndexBuffer(0, BufSTC_MAIN);
   SetIndexBuffer(1, BufUP);
   SetIndexBuffer(2, BufDOWN);
   
	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);
   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);
	}

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