From 6e7454cbe1b8e524dc2cff682596bf1e9e0b8c10 Mon Sep 17 00:00:00 2001
From: Anthony Wang <a@exozy.me>
Date: Tue, 27 Dec 2022 18:56:11 -0600
Subject: [PATCH] Add new megalovania beep emulator

---
 beepemu2 | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100755 beepemu2

diff --git a/beepemu2 b/beepemu2
new file mode 100755
index 0000000..fdc10dd
--- /dev/null
+++ b/beepemu2
@@ -0,0 +1,35 @@
+#!/usr/bin/fish -c python beepemu2 | play -r 100000 -t s16 -
+import math
+import struct
+import sys
+
+def saw(t):
+    t = t % 1
+    if t < 0.25:
+        return 4*t
+    elif t < 0.75:
+        return 2-4*t
+    else:
+        return 4*t-4
+
+t,s = 0,0
+flag = ''
+flags = {}
+with open("megalovania.sh") as f:
+    for x in f.read().split():
+        if x == 'beep':
+            pass
+        elif x[0] == '-':
+            flag = x[1]
+        else:
+            flags[flag] = int(x)
+        if flag == 'l' and x != '-l':
+            t += flags['D']
+            while s < t:
+                sys.stdout.buffer.write(struct.pack('h', 0))
+                s += 1/100
+            flags['D'] = 0
+            t += flags['l']
+            while s < t:
+                sys.stdout.buffer.write(struct.pack('h', int(math.e**(-flags['f']/500)*2**14*saw(flags['f']*s/1000))))
+                s += 1/100