From 7e989eeadfaaf010dfdd6f13f42a5d30dc4f799c Mon Sep 17 00:00:00 2001
From: mmcw-dev <hi@mmcwilliams.com>
Date: Fri, 20 Oct 2017 19:36:23 -0400
Subject: [PATCH] Add beginnings of the arbitrary exposure time logic. Test
 with /tests/index.js file

---
 lib/intval/index.js | 29 ++++++++++++++++++++++++-----
 tests/index.js      |  4 +++-
 2 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/lib/intval/index.js b/lib/intval/index.js
index 6b1015a..bc69ef3 100644
--- a/lib/intval/index.js
+++ b/lib/intval/index.js
@@ -40,12 +40,12 @@ intval.init = function () {
 	intval._state = {
 		dir : true, //forward
 		frame : {
-			start : 0, //time frame started, timestamp
+			start : 0, 		//time frame started, timestamp
 			active : false, //should frame be running
-			time : 0, //length of frame, in ms
-			delay : 0, //delay before start of frame, in ms
-
-			expected : 1000 //expected length of frame, in ms
+			time : 0, 		//length of frame, in ms
+			delay : 0, 		//delay before start of frame, in ms
+			open : 300, 	//delay before pausing frame in open state
+			expected : 630 	//expected length of frame, in ms
 		},
 		release : {
 			time: 0,
@@ -117,6 +117,11 @@ intval._startBwd = function () {
 	intval._pin.fwd.writeSync(0)
 	intval._pin.bwd.writeSync(1)
 }
+
+intval._pause = function () {
+	intval._pin.fwd.writeSync(0)
+	intval._pin.fwd.writeSync(0)
+}
 /** 
 * Stop motor by setting both motor pins to 0 (LOW)
 *
@@ -238,7 +243,13 @@ intval.setDir = function (val = true) {
 		return log.warn('Direction must be represented as either true or false')
 	}
 	intval._state.dir = val
+}
+intval.setTime = function (val = 0) {
+	intval._state.frame.time = val
 } 
+intval.setDelay = function (val = 0) {
+	intval._state.frame.delay = val
+}
 /**
 * Begin a single frame with set variables or defaults
 *
@@ -270,6 +281,14 @@ intval.frame = function (dir = null, time = null) {
 	} else {
 		intval._startBwd()
 	}
+	if (time !== null && time !== 0) {
+		setTimeout(intval._pause, intval._state.frame.open)
+		if (dir) {
+			setTimeout(intval._startFwd, 1000)
+		} else {
+			setTimeout(intval._startBwd, 1000)
+		}
+	}
 }
 /**
 * Start a sequence of frames, using defaults or explicit instructions
diff --git a/tests/index.js b/tests/index.js
index 657e5f7..47fbadb 100644
--- a/tests/index.js
+++ b/tests/index.js
@@ -2,4 +2,6 @@
 
 const intval = require('../lib/intval')
 
-intval.init()
\ No newline at end of file
+intval.init()
+intval.setDir(false)
+intval.setTime(1000)
\ No newline at end of file