From 82a7e72c9dc6bb94180b8b860488b27099939b7c Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Mon, 22 Feb 2016 20:12:53 +0100
Subject: quick&dirty animation switcher

---
 src/storage.cc |  1 +
 src/storage.h  |  2 ++
 src/system.cc  | 35 +++++++++++++++++++++++++++++++----
 src/system.h   | 10 +++++++++-
 4 files changed, 43 insertions(+), 5 deletions(-)

diff --git a/src/storage.cc b/src/storage.cc
index 21eed31..2b3ea7c 100644
--- a/src/storage.cc
+++ b/src/storage.cc
@@ -231,6 +231,7 @@ bool Storage::hasData()
 	return true;
 }
 
+// TODO support multi-page reads
 void Storage::load(uint8_t idx, uint8_t *data)
 {
 	uint8_t page_offset;
diff --git a/src/storage.h b/src/storage.h
index d0a4a67..ea294cb 100644
--- a/src/storage.h
+++ b/src/storage.h
@@ -47,6 +47,8 @@ class Storage {
 		 */
 		bool hasData();
 
+		uint8_t numPatterns() { return num_anims; };
+
 		/**
 		 * Load pattern from EEPROM.
 		 *
diff --git a/src/system.cc b/src/system.cc
index 1cbeec1..91c064a 100644
--- a/src/system.cc
+++ b/src/system.cc
@@ -35,13 +35,20 @@ void System::initialize()
 
 	storage.reset();
 	storage.save((uint8_t *)"\x10\x0a\x11\x00nootnoot");
-	storage.save((uint8_t *)"\x10\x0a\x20\x00nootnoot");
+	storage.save((uint8_t *)"\x10\x09\x20\x00" "fnordor");
+	storage.save((uint8_t *)"\x10\x05\x20\x00 \x01 ");
+	storage.save((uint8_t *)"\x20\x22\x08\x02"
+			"\x00\x04\x22\x02\x22\x04\x00\x00"
+			"\x00\x00\x00\x00\x00\x00\x00\x00"
+			"\x00\x04\x22\x02\x22\x04\x00\x00"
+			"\x00\x00\x00\x00");
+	storage.append((uint8_t *)"\x00\x00\x00\x00");
 
 	sei();
 
 	if (storage.hasData()) {
-		current_anim_no = 0;
-		loadPattern(1);
+		current_anim_no = 3;
+		loadPattern(3);
 	} else {
 		active_anim.type = AnimationType::TEXT;
 		active_anim.speed = (2 << 4) + 15;
@@ -94,7 +101,7 @@ void System::loadPattern(uint8_t anim_no)
 		active_anim.direction = disp_buf[3] >> 4;
 	} else if (active_anim.type == AnimationType::FRAMES) {
 		active_anim.speed = ((disp_buf[2] & 0x0f) << 4) + 15;
-		active_anim.delay = (disp_buf[2] & 0x0f) << 4;
+		active_anim.delay = (disp_buf[3] & 0x0f) << 2;
 	}
 
 	active_anim.data = disp_buf + 4;
@@ -233,6 +240,26 @@ void System::loop()
 		want_shutdown = 0;
 	}
 
+	if ((PINC & _BV(PC3)) == 0) {
+		btnMask = (ButtonMask)(btnMask | BUTTON_RIGHT);
+	}
+	if ((PINC & _BV(PC7)) == 0) {
+		btnMask = (ButtonMask)(btnMask | BUTTON_LEFT);
+	}
+	if ((PINC & (_BV(PC3) | _BV(PC7))) == (_BV(PC3) | _BV(PC7))) {
+		if (btnMask == BUTTON_RIGHT) {
+			current_anim_no = (current_anim_no + 1) % storage.numPatterns();
+			loadPattern(current_anim_no);
+		} else if (btnMask == BUTTON_LEFT) {
+			if (current_anim_no == 0)
+				current_anim_no = storage.numPatterns() - 1;
+			else
+				current_anim_no--;
+			loadPattern(current_anim_no);
+		}
+		btnMask = BUTTON_NONE;
+	}
+
 	while (modem.buffer_available()) {
 		receive();
 	}
diff --git a/src/system.h b/src/system.h
index 165ce7b..5a2c199 100644
--- a/src/system.h
+++ b/src/system.h
@@ -14,6 +14,13 @@ class System {
 		void receive(void);
 		void loadPattern(uint8_t anim_no);
 
+		enum ButtonMask : uint8_t {
+			BUTTON_NONE = 0,
+			BUTTON_LEFT = 1,
+			BUTTON_RIGHT = 2,
+			BUTTON_BOTH = 3
+		};
+
 		enum RxExpect : uint8_t {
 			START1,
 			START2,
@@ -29,9 +36,10 @@ class System {
 		};
 
 		RxExpect rxExpect;
+		ButtonMask btnMask;
 
 	public:
-		System() { want_shutdown = 0; rxExpect = START1; current_anim_no = 0;};
+		System() { want_shutdown = 0; rxExpect = START1; current_anim_no = 0; btnMask = BUTTON_NONE;};
 
 		/**
 		 * Initial MCU setup. Turns off unused peripherals to save power
-- 
cgit v1.2.3