From 656a42f23bf60c48f93c97ffd39132d036d8ae07 Mon Sep 17 00:00:00 2001
From: Micah Elizabeth Scott <micah@scanlime.org>
Date: Fri, 7 Mar 2014 18:02:47 -0800
Subject: [PATCH] Command line args
---
examples/node/midi_particles.coffee | 41 ++++++++++++++++++++++-------
examples/node/package.json | 3 ++-
2 files changed, 33 insertions(+), 11 deletions(-)
diff --git a/examples/node/midi_particles.coffee b/examples/node/midi_particles.coffee
index 1fef905..a56963f 100755
--- a/examples/node/midi_particles.coffee
+++ b/examples/node/midi_particles.coffee
@@ -4,27 +4,47 @@
#
# Dependencies: run `npm install` in this directory.
#
-# Assumes the default MIDI input port (0).
-# Specify a layout file on the command line, or use the default (grid32x16z)
+# Command line options:
+#
+# --midiport <int> Use a different MIDI port. Defaults to zero.
+# --layout <file> Pick a JSON layout file. Defaults to grid32x16z
+# --opchost <hostname> Network host running the OPC server. Defaults to localhost.
+# --opcport <port> Network port for the OPC server. Defaults to 7890.
#
# Controls:
-# (Tested with Alesis Q49 keyboard controller)
# Left hand -> Low frequency oscillators (wobble)
# Right hand -> Particles, shifting in color and pointiness
#
+# Supported MIDI keyboards:
+# - Basic MIDI works for any keyboard
+# - Pitch bend / modulation / data knobs on Alesis Q49
+# - Data sliders on Oxygen 61
+#
# 2014, Micah Elizabeth Scott & Keroserene
#
-# Default MIDI input
+parseArgs = require 'minimist'
midi = require 'midi'
+OPC = new require './opc'
+
+argv = parseArgs process.argv.slice(2),
+ default:
+ layout: '../layouts/grid32x16z.json'
+ midiport: 0
+ opchost: 'localhost'
+ opcport: 7890
+
input = new midi.input
-input.openPort 1
-input.ignoreTypes false, false, false
+if argv.midiport >= input.getPortCount()
+ console.log "MIDI port #{ argv.midiport } isn't available!"
+ process.exit 1
-# Default OPC output
-OPC = new require './opc'
-model = OPC.loadModel process.argv[2] || '../layouts/grid32x16z.json'
-client = new OPC 'localhost', 7890
+console.log "Using MIDI port #{ argv.midiport }: #{ input.getPortName argv.midiport }"
+input.openPort argv.midiport
+
+console.log "Using OPC server at #{ argv.opchost }:#{ argv.opcport }"
+model = OPC.loadModel argv.layout
+client = new OPC argv.opchost, argv.opcport
# Live particles
particles = []
@@ -70,6 +90,7 @@ LOWEST_A = 1
HIGHEST_C = 124
getKeyName = (key) -> FLAT_NAMES[(key - LOWEST_A) % 12]
+input.ignoreTypes false, false, false
input.on 'message', (deltaTime, message) ->
logMsg = message
msgType = Math.floor parseInt(message[0]) / 16 # Examine the 0xF0 byte.
diff --git a/examples/node/package.json b/examples/node/package.json
index cc8612a..07036d8 100644
--- a/examples/node/package.json
+++ b/examples/node/package.json
@@ -5,7 +5,8 @@
},
"dependencies": {
"flags": "~0.1.1",
- "midi": "~0.8.1"
+ "midi": "~0.8.1",
+ "minimist": "~0.0.8"
},
"private": true
}
--
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