From 2e98cc7eed993f6d65ca5d57f358ffc8cb86c21c Mon Sep 17 00:00:00 2001
From: Selene ToyKeeper
Date: Mon, 12 Oct 2015 22:22:28 -0600
Subject: Oops, forgot to add tk-random header.

---
 tk-random.h | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 tk-random.h

(limited to 'tk-random.h')

diff --git a/tk-random.h b/tk-random.h
new file mode 100644
index 0000000..db6c939
--- /dev/null
+++ b/tk-random.h
@@ -0,0 +1,28 @@
+#ifndef TK_RANDOM_H
+#define TK_RANDOM_H
+/*
+ * Smaller, pseudo-random function(s).
+ *
+ * Copyright (C) 2015 Selene ToyKeeper
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+uint8_t pgm_rand() {
+    static uint8_t *offset = 0;
+    return pgm_read_byte(offset++);
+}
+
+#endif  // TK_RANDOM_H
-- 
cgit v1.2.3


From e9bfbbbe4d4853d127019260fafc2620b13f3a1f Mon Sep 17 00:00:00 2001
From: Selene ToyKeeper
Date: Mon, 12 Oct 2015 22:45:04 -0600
Subject: Made pgm_rand() more erratic (beginning of PROGMEM is boring for this
 purpose), made random strobe smaller and better-looking.

---
 tk-random.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'tk-random.h')

diff --git a/tk-random.h b/tk-random.h
index db6c939..d559659 100644
--- a/tk-random.h
+++ b/tk-random.h
@@ -21,8 +21,9 @@
  */
 
 uint8_t pgm_rand() {
-    static uint8_t *offset = 0;
-    return pgm_read_byte(offset++);
+    static uint16_t offset = 255;
+    offset = (offset + 1) & 0x3ff | 0x0100;
+    return pgm_read_byte(offset);
 }
 
 #endif  // TK_RANDOM_H
-- 
cgit v1.2.3