From 369ecd14db45c9eacfc43f06ae71503f9f338a40 Mon Sep 17 00:00:00 2001
From: Austen Adler <stonewareslord@gmail.com>
Date: Tue, 3 Jan 2017 16:47:04 +0000
Subject: [PATCH] Added main code

---
 .gitignore |  1 +
 main.c     | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 79 insertions(+)
 create mode 100644 main.c

diff --git a/.gitignore b/.gitignore
index 5ac559f..da9353d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@ flush
 new
 prompt
 sr
+main
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..0163fd5
--- /dev/null
+++ b/main.c
@@ -0,0 +1,78 @@
+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdbool.h>
+#define LATCH_PIN 2
+#define CLOCK_PIN 0
+#define DATA_PIN  3
+#define OFF false, false, false
+#define RED true, false, false
+#define GREEN false, true, false
+#define BLUE false, false, true
+#define PURPLE true, false, true
+typedef enum { LEFT, RIGHT } Side_t;
+bool colorField[] = {
+  false, // Left red
+  false, // Left green
+  false, // Left blue
+  false, // Right red
+  false, // Right green
+  false, // Right blue
+  false, // Unused bit
+  false  // Unused bit
+};
+void write(bool mode) {
+  delay(10);
+  digitalWrite(DATA_PIN, mode);
+  digitalWrite(CLOCK_PIN, true);
+  digitalWrite(CLOCK_PIN, false);
+  digitalWrite(DATA_PIN, false);
+}
+void flushPins() {
+  digitalWrite(LATCH_PIN, true);
+  digitalWrite(LATCH_PIN, false);
+}
+void updateColors() {
+  flushPins();
+  for(int i = 0; i < 8; i ++){
+    write(colorField[i]);
+  }
+  flushPins();
+}
+void changeColor(Side_t side, bool red, bool green, bool blue) {
+  short shift = 0;
+  if(side == RIGHT) {
+    shift = 3;
+  }
+  colorField[shift] = red;
+  colorField[shift + 1] = green;
+  colorField[shift + 2] = blue;
+  updateColors();
+  delay(1000);
+}
+void changeAllColors(bool red, bool green, bool blue) {
+  colorField[0] = red;
+  colorField[1] = green;
+  colorField[2] = blue;
+  colorField[3] = red;
+  colorField[4] = green;
+  colorField[5] = blue;
+}
+int main(void) {
+  wiringPiSetup();
+  pinMode(DATA_PIN, OUTPUT);
+  pinMode(CLOCK_PIN, OUTPUT);
+  pinMode(LATCH_PIN, OUTPUT);
+  changeAllColors(OFF);
+  updateColors();
+  delay(1000);
+  for(;;) {
+    changeColor(LEFT, RED);
+    changeColor(LEFT, OFF);
+    changeColor(LEFT, GREEN);
+    changeColor(LEFT, OFF);
+    changeColor(LEFT, BLUE);
+    changeColor(LEFT, OFF);
+    changeColor(LEFT, PURPLE);
+    changeColor(LEFT, OFF);
+  }
+}