From 0153670f78f5530ac00ed4e221ca289f2ba8e0ff Mon Sep 17 00:00:00 2001
From: c9s <yoan@maicoin.com>
Date: Tue, 16 Jun 2020 14:13:53 +0800
Subject: [PATCH] refactor rule and upper shaodw checker

---
 bbgo/kline.go | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/bbgo/kline.go b/bbgo/kline.go
index 54d85393f..bad97f8c0 100644
--- a/bbgo/kline.go
+++ b/bbgo/kline.go
@@ -87,6 +87,10 @@ func (k KLine) GetThickness() float64 {
 	return math.Abs(k.GetChange()) / math.Abs(k.GetMaxChange())
 }
 
+func (k KLine) GetUpperShadowRatio() float64 {
+	return k.GetUpperShadowHeight() / math.Abs(k.GetMaxChange())
+}
+
 func (k KLine) GetUpperShadowHeight() float64 {
 	high := k.GetHigh()
 	if k.GetOpen() > k.GetClose() {
@@ -95,6 +99,10 @@ func (k KLine) GetUpperShadowHeight() float64 {
 	return high - k.GetClose()
 }
 
+func (k KLine) GetLowerShadowRatio() float64 {
+	return k.GetLowerShadowHeight() / math.Abs(k.GetMaxChange())
+}
+
 func (k KLine) GetLowerShadowHeight() float64 {
 	low := k.GetLow()
 	if k.GetOpen() < k.GetClose() {
@@ -161,6 +169,25 @@ func (k KLineWindow) GetMaxChange() float64 {
 	return k.GetHigh() - k.GetLow()
 }
 
+func (k KLineWindow) AllDrop() bool {
+	for _, n := range k {
+		if n.GetTrend() >= 0 {
+			return false
+		}
+	}
+	return true
+}
+
+func (k KLineWindow) AllRise() bool {
+	for _, n := range k {
+		if n.GetTrend() <= 0 {
+			return false
+		}
+	}
+	return true
+}
+
+
 func (k KLineWindow) GetTrend() int {
 	o := k.GetOpen()
 	c := k.GetClose()