From 9560346cdd1429ff5c9d22e80963d9c6b30358ec Mon Sep 17 00:00:00 2001
From: aprilnightk <aprilnightk@tilde.team>
Date: Sat, 9 Aug 2025 08:15:49 +0300
Subject: [PATCH] speed of sound fix

---
 core/room.py      | 2 +-
 core/soundnode.py | 2 +-
 test.py           | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/core/room.py b/core/room.py
index 8311ef8..68b4dfb 100644
--- a/core/room.py
+++ b/core/room.py
@@ -12,9 +12,9 @@ class Room:
 	
 	def __init__(self):
 		
-		self.speed_of_sound = 330 #m/s
 		self.dissipation_quotient = 0.9993
 		self.sample_rate = 44100
+		self.speed_of_sound = 343 / float(self.sample_rate) #m/tick
 		self.set_bit_depth(24)
 	
 		self.lowest_freq = 430
diff --git a/core/soundnode.py b/core/soundnode.py
index 5056e69..d80326a 100644
--- a/core/soundnode.py
+++ b/core/soundnode.py
@@ -39,7 +39,7 @@ class SoundNode:
 	def amp_at_tick_by_air(self, f, t, node):
 		
 		dist = self.distance_to_node(node, t)
-		t = t - ((self.room.speed_of_sound*dist)/float(self.room.sample_rate))
+		t = t - int(dist / self.room.speed_of_sound)
 		
 		return self.room.max_amp * self.frequency_max_rel_amp(f, t) * math.sin(self.room.sine_multiplier * f * t)
 	
\ No newline at end of file
diff --git a/test.py b/test.py
index 8c98213..b653244 100644
--- a/test.py
+++ b/test.py
@@ -4,7 +4,7 @@ import math
 
 R = Room()
 R.left_sink.start_location = (-1, 0, 0)
-R.right_sink.start_location = (1, 0, 0)
+R.right_sink.start_location = (2, 0, 0)
 
 class SineNode(SoundNode):
 	
@@ -23,7 +23,7 @@ class SineNode(SoundNode):
 		
 sn = SineNode(440, R)
 
-R.link_wire(sn, R.left_sink)
-R.link_wire(sn, R.right_sink)
+R.link_air(sn, R.left_sink)
+R.link_air(sn, R.right_sink)
 
 R.record('test5.wav', 0, 6)
\ No newline at end of file