From 3a8f61b7b2bdf87ddec1aeeea577193e7c19f9a2 Mon Sep 17 00:00:00 2001
From: jens <jens.ahrensfeld@gmx.de>
Date: Mon, 21 Dec 2020 16:05:54 +0100
Subject: [PATCH] - fixed delay

---
 components/plant/delay.py | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/components/plant/delay.py b/components/plant/delay.py
index 6bd0e40..16a04cb 100644
--- a/components/plant/delay.py
+++ b/components/plant/delay.py
@@ -4,15 +4,15 @@ import numpy as np
 class Delay:
 	def __init__(self, dt, delay):
 		nd = int(delay/dt + 0.5)
-		self.delay_line = np.zeros(nd)
+		self.delay_line = np.zeros(nd+1)
 		self.ri = 0
 		self.wi = 0
 
 	def put(self, data):
-		if self.wi >= self.delay_line.size:
-			self.wi = 0
 		self.delay_line[self.wi] = data
 		self.wi += 1
+		if self.wi >= self.delay_line.size:
+			self.wi = 0
 
 	def get(self):
 		self.ri += 1
@@ -20,12 +20,11 @@ class Delay:
 			self.ri = 0
 
 		result = self.delay_line[self.ri]
-
 		return result
 
 
 if __name__ == '__main__':
-	d = Delay(1, 10)
+	d = Delay(1, 1)
 
 	for i in range(1, 20):
 		d.put(i)