Created a Mindmachine Sketch

bin/data/scenes/mindmachine/exampleCode.cpp

@@ -0,0 +1,13 @@
+// you might want to close your eyes and let go
+
+void draw(){
+    int microsePerWave = (int)( 1000*1000 / ( [[Brain Frequency]] *2 ));
+    int wave = ofGetElapsedTimeMicros() / microsePerWave;
+    int lastWave = last / microsePerWave;
+    last = ofGetElapsedTimeMicros();
+
+    if(wave > lastWave) flip *= -1;
+    int alpha = ofMap(flip, -1, 1, 0, 255);
+
+    ofBackground(alpha);
+}

d4nSFPCRunner.xcodeproj/project.pbxproj

@@ -116,6 +116,7 @@
 		E4328149138ABC9F0047C5CB /* openFrameworksDebug.a in Frameworks */ = {isa = PBXBuildFile; fileRef = E4328148138ABC890047C5CB /* openFrameworksDebug.a */; };
 		E4B69E200A3A1BDC003C02F2 /* main.cpp in Sources */ = {isa = PBXBuildFile; fileRef = E4B69E1D0A3A1BDC003C02F2 /* main.cpp */; };
 		E4B69E210A3A1BDC003C02F2 /* ofApp.cpp in Sources */ = {isa = PBXBuildFile; fileRef = E4B69E1E0A3A1BDC003C02F2 /* ofApp.cpp */; };
+		EF8EF8F71C284680006C7B1B /* mindmachine.cpp in Sources */ = {isa = PBXBuildFile; fileRef = EF8EF8F51C284680006C7B1B /* mindmachine.cpp */; };
 		F285EB3169F1566CA3D93C20 /* ofxPanel.cpp in Sources */ = {isa = PBXBuildFile; fileRef = E112B3AEBEA2C091BF2B40AE /* ofxPanel.cpp */; };
 		FA361F451C18862D00F197F3 /* veraMolnarLines68.cpp in Sources */ = {isa = PBXBuildFile; fileRef = FA361F431C18862D00F197F3 /* veraMolnarLines68.cpp */; };
 		FA361F491C1887A400F197F3 /* alexGifPaletteDitherMenkman.cpp in Sources */ = {isa = PBXBuildFile; fileRef = FA361F471C1887A400F197F3 /* alexGifPaletteDitherMenkman.cpp */; };
@@ -403,6 +404,8 @@
 		E4EB691F138AFCF100A09F29 /* CoreOF.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = CoreOF.xcconfig; path = ../../../libs/openFrameworksCompiled/project/osx/CoreOF.xcconfig; sourceTree = SOURCE_ROOT; };
 		E4EB6923138AFD0F00A09F29 /* Project.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; path = Project.xcconfig; sourceTree = "<group>"; };
 		ECF8674C7975F1063C5E30CA /* ofxGuiGroup.cpp */ = {isa = PBXFileReference; explicitFileType = sourcecode.cpp.cpp; fileEncoding = 30; name = ofxGuiGroup.cpp; path = ../../../addons/ofxGui/src/ofxGuiGroup.cpp; sourceTree = SOURCE_ROOT; };
+		EF8EF8F51C284680006C7B1B /* mindmachine.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = mindmachine.cpp; sourceTree = "<group>"; };
+		EF8EF8F61C284680006C7B1B /* mindmachine.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = mindmachine.h; sourceTree = "<group>"; };
 		FA361F431C18862D00F197F3 /* veraMolnarLines68.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = veraMolnarLines68.cpp; sourceTree = "<group>"; };
 		FA361F441C18862D00F197F3 /* veraMolnarLines68.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = veraMolnarLines68.h; sourceTree = "<group>"; };
 		FA361F471C1887A400F197F3 /* alexGifPaletteDitherMenkman.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = alexGifPaletteDitherMenkman.cpp; sourceTree = "<group>"; };
@@ -733,6 +736,7 @@
 		9238719D1BF7993A00171456 /* scenes */ = {
 			isa = PBXGroup;
 			children = (
+				EF8EF8F41C284680006C7B1B /* mindmachine */,
 				C1DB5A341C272DEE000C2F7C /* ofxDataBender */,
 				B08FE1911C23B39F0037252E /* RileyRemake-Catarina_Lee__Joao_Freire */,
 				C13A36701C17906200F13242 /* aaronMarcusHieroglyphB */,
@@ -1349,6 +1353,15 @@
 			name = openFrameworks;
 			sourceTree = "<group>";
 		};
+		EF8EF8F41C284680006C7B1B /* mindmachine */ = {
+			isa = PBXGroup;
+			children = (
+				EF8EF8F51C284680006C7B1B /* mindmachine.cpp */,
+				EF8EF8F61C284680006C7B1B /* mindmachine.h */,
+			);
+			path = mindmachine;
+			sourceTree = "<group>";
+		};
 		FA361F421C18862D00F197F3 /* veraMolnarLines68 */ = {
 			isa = PBXGroup;
 			children = (
@@ -1527,6 +1540,7 @@
 				D39F0DF71C222065004DEAAB /* OscOutboundPacketStream.cpp in Sources */,
 				B00CD10E1C21E81400C529FA /* ofxTween.cpp in Sources */,
 				FA361F491C1887A400F197F3 /* alexGifPaletteDitherMenkman.cpp in Sources */,
+				EF8EF8F71C284680006C7B1B /* mindmachine.cpp in Sources */,
 				9237CB9D1C11E9BD0007A916 /* veraFscene.cpp in Sources */,
 				85B3DCA81C1E47060054975A /* yeseulMenkmanInstitution.cpp in Sources */,
 				B00CD1041C21E81400C529FA /* ofxEasingBounce.cpp in Sources */,

src/scenes/mindmachine/mindmachine.cpp

@@ -0,0 +1,31 @@
+
+#include "mindmachine.h"
+
+void mindmachine::setup(){
+
+    freq.set("Brain Frequency", 5, 1, 20);
+    parameters.add(freq);
+
+    flip = 1;
+
+    setOriginalArtist("William Grey Walter");
+    setAuthor("Christopher Pietsch");
+
+    loadCode("scenes/mindmachine/exampleCode.cpp");
+}
+
+void mindmachine::update(){
+
+}
+
+void mindmachine::draw(){
+    int microsePerWave = (int)( 1000*1000 / ( freq *2 ));
+    int wave = ofGetElapsedTimeMicros() / microsePerWave;
+    int lastWave = last / microsePerWave;
+    last = ofGetElapsedTimeMicros();
+
+    if(wave > lastWave) flip *= -1;
+    int alpha = ofMap(flip, -1, 1, 0, 255);
+
+    ofBackground(alpha);
+}

src/scenes/mindmachine/mindmachine.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "ofMain.h"
+#include "baseScene.h"
+
+class mindmachine : public baseScene {
+
+public:
+
+    void setup();
+    void update();
+    void draw();
+
+    ofParameter<float> freq;
+
+    int last;
+    int flip;
+};

src/scenes/sceneManager.cpp

@@ -59,6 +59,7 @@
 #include "sarahgpRileyCircle.h"
 #include "mwalczykVeraSquares.h"
 #include "yeseulRileyBrokencircle.h"
+#include "mindmachine.h"
 
 float baseScene::smoothingSpeed = 0.02;
 
@@ -70,7 +71,7 @@ sceneManager::~sceneManager(){
 void sceneManager::setup(){
 
     font.load("fonts/ProggySmall.fon", 8, false ,false, false, 0, 96);
-
+    
     scenes.push_back(new CooperBauhaus());  // this might make for a good start scene -Robby & Becca
     scenes.push_back(new RileyArcsRoy());
     scenes.push_back(new rachelScene());
@@ -116,6 +117,7 @@ void sceneManager::setup(){
     scenes.push_back(new olegVeraV());
     scenes.push_back(new sarahgpRileyCircle());
     scenes.push_back(new mwalczykVeraSquares());
+    scenes.push_back(new mindmachine());
 
     // Too slow
 //     scenes.push_back(new andyMenkmanTif());